8 Index by molecular formula and chemical structure - new compounds C8 
Data 
2 Index sorted by molecular formula and chemical structures 
Compounds with 8 to 12 carbon atoms 
2.1 New Compounds 
30823 C8AsF12 
398.99 
F F F Tetrakis-trifluorovinyl-.5-arsane III/35b 2.2:455 
F 
F As(+) 
FF 
F 
FFFF 
30824 C8BF12 
334.88 
F F F Tetrakis-trifluorovinyl-borane III/35b 2.2:456 
F 
F B(-) 
FF 
F 
FFFF 
30825 C8Br2F12 
483.87 
F3C 
F3C 
Br 
Br 
CF3 
CF3 
3,4-Dibromo-1,1,1,6,6,6-hexafluoro-2,5-bis-
trifluoromethyl-hexa-2,4-diene 
III/35b 2.2:457 
30826 C8Cl2Co2O8Sn 
531.54 
15492-24-7 C 
Co 
C 
C 
O 
C 
O 
O O 
C 
O 
O 
ClC 
Co 
C 
Sn 
Cl 
C 
O 
O 
Cobalt, 
(dichlorostannylene)bis[tetracarbonyl]-; 
Cobalt, octacarbonyl[-
(dichlorostannylene)]di-; 
Dichlorobis(tetracarbonylcobalt)tin; 
Stannane, dichloro-, cobalt complex 
III/35e 2.2.7:4572 
30827 C8Cl2F12 
394.97 
F3C 
F3C 
Cl 
Cl 
CF3 
CF3 
3,4-Dichloro-1,1,1,6,6,6-hexafluoro-2,5-bis-
trifluoromethyl-hexa-2,4-diene 
III/35b 2.2:458 
30828 C8F6N2 
238.09 
FF 
F 
1,4,5,6,7,8-Hexafluoro-phthalazine III/35b 3.2:839 
N 
N 
F 
F F 
30829 C8F6N2 
238.09 N 
F 
F F 
2,3,5,6,7,8-Hexafluoro-quinoxaline III/35b 3.2:840 
NF F 
F 
30830 C8F12O 
340.07 
O 
F3C CF3 
CF3F3C 
2,3,4,5-Tetrakis-trifluoromethyl-furan III/35b 2.2:459 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
30831 C8F12P2 
386.01 
P 
CF3F3C 
1,3,4,6-Tetrakis-trifluoromethyl-2,5-
diphospha-tricyclo[3.1.0.02,6]hex-3-ene 
III/35b 2.2:460 
P CF3 
F3C 
30832 C8F12S 
356.13 
S 
F3C CF3 
CF3F3C 
2,3,4,5-Tetrakis-trifluoromethyl-thiophene III/35b 2.2:461 
30833 C8F18HgS2 
702.78 
CF3 
F3C CF3 
F3C S Hg S 
bis(Tris(trifluoromethyl)-methylthio)mercury III/35b 2.2:462 
CF3F3C 
30834 C8HF13 
344.07 
F13C6 
CH 3,3,4,4,5,5,6,6,7,7,8,8,8-Tridecafluoro-oct-
1-yne 
III/35b 2.2:463 
30835 C8H2FeO7 
265.94 
OO O C8H2FeO7 III/35c4 2.2:707 
O 
C 
FeCO 
C 
OC 
O 
30836 C8H3BCo2O8 
355.78 
BH3 
.Co2(CO)8 III/35a 2.2:744 
30837 C8H3BrO3 
227.01 
O 4-Bromo-isobenzofuran-1,3-dione; 
Phthalic anhydride, 3-bromo- 
III/35e 2.2.1:582 
82-73-5 
O 
Br 
O 
30838 C8H3ClO3 
182.56 
O 4-Chloro-isobenzofuran-1,3-dione; 
1,3-Isobenzofurandione, 4-chloro-
III/35e 2.2.1:583 
117-21-5 
O 
Cl 
O 
30839 C8H3FO3 
166.11 
O 5-Fluoro-isobenzofuran-1,3-dione; 
1,3-Isobenzofurandione, 5-fluoro-
III/35b 2.2:464 
319-03-9 
O 
F 
O 
30840 C8H3FO3 
166.11 
O 4-Fluoro-isobenzofuran-1,3-dione; 
3-fluorophthalic anhydride 
III/35e 2.2.1:584 
652-39-1 
O 
F 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
30841 C8H3F2N5O3 
255.14 
F 
N3 
F 
O CH3 
4-Azido-6-diazo-2,3-difluoro-5-oxo-
cyclohexa-1,3-dienecarboxylic acid methyl 
ester 
III/35b 2.2:465 
O 
O N(+) 
N(-) 
30842 C8H3F3IN3O2 
357.03 OH3CN3 
I FA 4-Azido-2,3,5-trifluoro-6-iodo-benzoic acid 
methyl ester 
III/35b 2.2:466 
O 
FC FB 
30843 C8H3F6NO2 
259.11 
CF3 
CF3 
3,4-Bis-trifluoromethyl-pyridine-2-carboxylic 
acid 
III/35b 2.2:467; 
III/35c2 2.2:356 
N COOH 
30844 C8H3F13O 
362.09 
F13C6 
O 
F13C6 
+ 
O 
(R,S)-2-Tridecafluorohexyl-oxirane III/35b 2.2:468 
30845 C8H3IO3 
274.01 
O 4-Iodo-isobenzofuran-1,3-dione III/35e 2.2.1:585 
O 
I 
O 
30846 C8H3NO5 
193.11 
O 4-Nitro-isobenzofuran-1,3-dione III/35e 2.2.1:586 
O 
NO2 
O 
30847 C8H4BrNO 
210.03 
O 4-Cyano-benzoyl bromide III/35e 2.2.1:587 
Br 
NC 
30848 C8H4BrNO2S 
258.09 
Br 3-Bromo-2-nitro-benzo[b]thiophene; 
2-nitro-3-bromobenzo(b)thiophene 
III/35c2 2.2:357 
17402-78-7 
NO2 
S 
30849 C8H4ClF3O 
208.56 
O 1-(4-Chloro-phenyl)-2,2,2-trifluoro-
ethanone; 
III/35e 2.2.1:590 
321-37-9 CF3 Ethanone, 1-(4-chlorophenyl)-2,2,2-
trifluoro-; 
Cl 2,2,2-Trifluoro-4'-chloroacetophenone 
30850 C8H4ClF3O 
208.56 
O Benzoyl chloride, 2-(trifluoromethyl)-; 
2-Trifluoromethyl-benzoyl chloride 
III/35e 2.2.1:588 
312-94-7 Cl 
CF3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
30851 C8H4ClF3O 
208.56 
329-15-7 
30852 C8H4ClNO 
165.58 
6068-72-0 
30853 C8H4ClNO2 
181.58 
4461-36-3 
30854 C8H4ClN3O2S 
241.65 
30855 C8H4Cl2F3N 
242.03 
30856 C8H4Cl2N2 
199.04 
27017-66-9 
30857 C8H4Cl3F 
225.47 
30858 C8H4F3NO 
187.12 
30859 C8H4F3NO 
187.12 
332-25-2 
30860 C8H4F3NO 
187.12 
52771-22-9 
30861 C8H4F3O 
173.11 
F3C 
NC 
Cl 
O2N 
Cl 
Cl 
Cl 
F3C 
NC 
NC 
F3C 
N 
O 
Cl 
O 
Cl 
O 
N 
C 
O 
Cl 
N 
SN 
N 
Cl 
CF3 
ClN 
Cl 
Cl 
F 
O 
N 
C 
O 
CF3 
O 
CF3 
O(+) 
a,a,a-Trifluoro-p-toluoyl chloride; 
4-Trifluoromethyl-benzoyl chloride 
Benzoyl chloride, 4-cyano-; 
Benzoyl chloride, p-cyano-; 
4-Cyano-benzoyl chloride; 
4-Cyanobenzoic acid chloride 
Benzoic acid, p-chloro-, anhydride with 
isocyanic acid; 
Benzoyl isocyanate, 4-chloro-; 
4-Chlorobenzoyl isocyanate; 
Isocyanic acid, anhydride with pchlorobenzoic 
acid 
3-Chloro-4-(4-nitro-phenyl)-
[1,2,5]thiadiazole 
4-Chloro-N-trifluoromethyl-benzimidoyl 
chloride 
2,6-Dichloro-[1,5]naphthyridine; 
1,5-Naphthyridine, 2,6-dichloro- 
1-Chloro-4-(2,2-dichloro-1-fluoro-vinyl)-
benzene 
1-Isocyanato-4-trifluoromethyl-benzene 
Benzonitrile, 4-(trifluoromethoxy)-; 
4-Trifluoromethoxy-benzonitrile 
3-(Trifluormethoxy)-benzonitril; 
3-Trifluoromethoxy-benzonitrile 
3-Trifluoromethyl-phenylmethylidyne-
oxonium 
III/35e 2.2.1:589 
III/35e 2.2.1:591 
III/35e 2.2.1:592 
III/35c2 2.2:358 
III/35b 2.2:469 
III/35c2 2.2:359 
III/35b 2.2:470 
III/35e 2.2.1:595 
III/35e 2.2.2:2655 
III/35e 2.2.2:2654 
III/35e 2.2.1:596 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
30862 C8H4F3O 
173.11 
O(+) 
F3C 
4-Trifluoromethyl-phenylmethylidyne-
oxonium 
III/35e 2.2.1:597 
30863 C8H4F3O2 
189.11 
O 4-Trifluoromethyl-benzoic acid anion III/35e 2.2.1:598 
O(-) 
F3C 
30864 C8H4F4O 
192.11 
O Ethanone, 2,2,2-trifluoro-1-(4-fluorophenyl)-
; 
III/35e 2.2.1:599 
655-32-3 
F 
CF3 p-Fluorotrifluoroacetophenone; 
2,2,2-Trifluoro-1-(4-fluoro-phenyl)-
ethanone; 
2,2,2-trifluoro-1-(4-fluorophenyl)ethan-1-
one 
30865 C8H4F10O2 
322.1 
O 
O CF3 
CF3 
F 
F 
F 
F 
3,3,4,4-Tetrafluoro-1,2-bis-(2,2,2-trifluoro-
ethoxy)-cyclobutene 
III/35b 2.2:471 
30866 C8H4FeO4 
219.96 
CO 
Fe 
O 
O 
C 
O 
C 
C8H4FeO4 III/35c4 2.2:708 
30867 C8H4FeO8 
283.96 
COOHHOOC 
O 
C8H4FeO8 III/35c4 2.2:709 
C 
FeCO 
C 
OC 
O 
30868 C8H4FeO8 
283.96 
COOH 
HOOC O 
C8H4FeO8 III/35c4 2.2:710 
C 
FeCO 
C 
OC 
O 
30869 C8H4NO2 
146.12 
O 4-Cyano-benzoic acid anion III/35e 2.2.1:600 
O(-) 
NC 
30870 C8H4N2O 
144.13 
NC 
ON Furo[2,3-b]pyridine-5-carbonitrile III/35c2 2.2:360 
30871 C8H4N4O6 
252.14 
2379-57-9 
NH OO2N 6,7-Dinitro-1,4-dihydro-quinoxaline-2,3-
dione; 
6,7-Dinitroquinoxaline-2,3-dione 
III/35e 2.2.1:601; 
III/35e 2.2.3:3474 
NH OO2N 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
30872 C8H4O3 
148.12 
O Benzofuran-2,3-dione III/35e 2.2.1:602 
4732-72-3 
O 
O 
30873 C8H5BF3NO2 
214.94 B 
OH C8H5BF3NO2 III/35a 2.2:745 
O 
N CF3 
30874 C8H5BrF2O 
235.03 
O 1-(4-Bromo-phenyl)-2,2-difluoro-ethanone III/35b 2.2:472 
F 
F 
Br 
30875 C8H5BrN2O 
225.04 
O 
Br 
N(+) 
N(-) 1-(4-Bromo-phenyl)-2-diazo-ethanone III/35e 2.2.1:604 
30876 C8H5BrN2O2 
241.04 
O2N 
Br 
NH 
3-Bromo-6-nitro-1H-indole III/35c2 2.2:361 
30877 C8H5BrO2 
213.03 
O 4-Bromo-3H-isobenzofuran-1-one; 
4-Bromo-3H-isobenzofuran-1-one 
III/35e 2.2.1:605 
O 
Br 
30878 C8H5BrO2 
213.03 
O 
7-Bromo-3H-isobenzofuran-1-one; 
7-Bromo-3H-isobenzofuran-1-one 
III/35e 2.2.1:606 
Br 
O 
30879 C8H5ClF3N 
207.58 
Ph N 
Cl 
CF3 
N-Trifluoromethyl-benzimidoyl chloride III/35b 2.2:473 
30880 C8H5ClF4S 
244.64 
S 
F 
CF3 1-Chloro-4-((R,S)-1,2,2,2-tetrafluoro-
ethylsulfanyl)-benzene 
III/35b 2.2:474 
Cl 
+ 
S CF3 
F 
Cl 
30881 C8H5ClN2O 
180.59 
Cl 
O 
N(+) 
N(-) 1-(4-Chloro-phenyl)-2-diazo-ethanone III/35e 2.2.1:607 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
30882 C8H5ClO2 
168.58 
O 4-Chloro-3H-isobenzofuran-1-one; 
4-Chloro-3H-isobenzofuran-1-one 
III/35e 2.2.1:608 
O 
Cl 
30883 C8H5ClO2 
168.58 
O 
7-Chloro-3H-isobenzofuran-1-one; 
7-Chloro-3H-isobenzofuran-1-one 
III/35e 2.2.1:609 
Cl 
O 
30884 C8H5Cl2F2OP 
257.0 Ph 
Cl 
P 
Cl O C8H5Cl2F2OP III/35a 3.2:682 
F 
F 
30885 C8H5Cl2NS 
218.1 Cl 
Cl 
N 
CH3 
4,5-Dichloro-2-methyl-benzothiazole III/35c2 2.2:362 
S 
30886 C8H5Cl3O3 
255.48 
O 2,3,6-Trichloro-4-hydroxy-5-methoxy-
benzaldehyde; 
III/35e 2.2.1:610 
119464-51-6 Cl Cl Trichlorovanillin 
Cl O 
CH3 
OH 
30887 C8H5Cl5CrN3O3 
P3 
(-) C8H5Cl5CrN3O3P3 III/35a 3.2:683 
513.33 
N 
Cl O C 
P 
N 
Cr(+) 
C 
C 
O 
O 
Cl 
Cl P 
N 
P Cl 
Cl 
30888 C8H5CrO3 
201.12 (-) 
Cyclopentadienyl-tricarbonyl-chromium (1) 
III/35e 2.2.7:4605 
O 
C 
O 
C 
C 
Cr 
O 
30889 C8H5FN2O 
164.14 
F 
O 
N(+) 
N(-) 2-Diazo-1-(4-fluoro-phenyl)-ethanone III/35e 2.2.1:611 
30890 C8H5FO2 
152.12 
O 4-Fluoro-3H-isobenzofuran-1-one; 
4-Fluoro-3H-isobenzofuran-1-one 
III/35e 2.2.1:612 
O 
F 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
30891 C8H5FO2 
152.12 
O 
7-Fluoro-3H-isobenzofuran-1-one; 
7-Fluoro-3H-isobenzofuran-1-one 
III/35e 2.2.1:613 
F 
O 
30892 C8H5FS 
152.19 
S F 
2-Fluoro-benzo[b]thiophene III/35b 2.2:475 
30893 C8H5F2IO2 
298.02 
O F4-Iodo-benzoic acid difluoromethyl ester III/35b 2.2:476 
O F 
I 
30894 C8H5F2N 
153.13 
CN 4-Difluoromethyl-benzonitrile III/35b 2.2:477 
55805-10-2 F 
F 
30895 C8H5F2OP 
186.09 
Ph 
P 
F F 
O 
C8H5F2OP III/35a 3.2:684 
30896 C8H5F3INO2 
331.03 
127635-94-3 
H2N 
FB 
FC O 
O 
CH3 
I 
FA 
4-Amino-2,3,5-trifluoro-6-iodo-benzoic acid 
methyl ester 
III/35b 2.2:478 
30897 C8H5F3O2 
190.12 
O F 4-Fluoro-benzoic acid difluoromethyl ester III/35b 2.2:479 
O F 
F 
30898 C8H5F3O2 
190.12 
COOH Benzoic acid, 4-(trifluoromethyl)-; 
4-Trifluoromethyl-benzoic acid 
III/35e 2.2.1:616 
455-24-3 
F3C 
30899 C8H5F3O2 
190.12 
659-28-9 
O 
CF3 
O 
4-Trifluoromethoxy-benzaldehyde; 
p-(trifluoromethoxy)benzaldehyde 
III/35e 2.2.1:615 
30900 C8H5F4NO2 
223.12 F 
F 
NO2 
1-Ethyl-2,3,5,6-tetrafluoro-4-nitro-benzene III/35e 2.2.3:3475 
H5C2 F 
F 
30901 C8H5F6NO3 
277.12 
N O 
O 
OH (S)-3,3-Bis-trifluoromethyl-dihydro-
pyrrolo[1,2-c]oxazole-1,6-dione 
III/35b 2.2:480 
CF3F3C 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
30902 C8H5FeNO2 
202.98 (-) 
CFe(+) O 
C8H5FeNO2 III/35c4 2.2:711 
CNC 
O 
30903 C8H5FeO3 
204.97 (-) 
Cyclopentadienyl-tricarbonyl-iron (1+) III/35e 2.2.7:4623 
Fe(2+)C O 
C 
O C 
O 
30904 C8H5IO2 
260.03 
O 4-Iodo-3H-isobenzofuran-1-one; 
4-Iodo-3H-isobenzofuran-1-one 
III/35e 2.2.1:617 
O 
I 
30905 C8H5IO2 
260.03 
O7-Iodo-3H-isobenzofuran-1-one; 
7-Iodo-3H-isobenzofuran-1-one 
III/35e 2.2.1:618 
I 
O 
30906 C8H5MnO5 
236.06 
CH2 1-Propen-3-yl-pentacarbonylmanganese III/35e 2.2.7:4669 
OO 
C C 
Mn 
C C 
OO C 
O 
30907 C8H5MoO3 
245.06 
O 
C 
O 
C 
Cyclopentadienyl-tricarbonyl-molybdenum 
(1-) 
III/35e 2.2.7:4721 
Mo 
C 
(-)O 
30908 C8H5NO 
131.13 O 
Benzaldehyde, p-cyano-; 
Benzonitrile, 4-formyl-; 
III/35e 2.2.1:620 
105-07-7 4-Formyl-benzonitrile; 
NC Terephthalaldehydonitrile 
30909 C8H5NOS 
163.2 
532-55-8 Ph 
O 
N 
C 
S 
Benzoyl isothiocyanate III/35e 2.2.1:621 
30910 C8H5NOS2 
195.26 
OPh C8H5NOS2 III/35c2 2.2:363 
SS 
N 
30911 C8H5NOSe 
210.09 O 
2-Selenocyanato-benzaldehyde III/35e 2.2.1:622 
CN 
Se 
30912 C8H5NO2 
147.13 
COOH Benzoic acid, 4-cyano-; 
4-Cyano-benzoic acid 
III/35e 2.2.1:624 
619-65-8 
NC 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
30913 C8H5NO2 
147.13 
4461-33-0 Ph 
O 
N 
C 
O 
Benzoyl isocyanate III/35e 2.2.1:623 
30914 C8H5NO3 
163.13 
OO 4H-Benzo[1,4]oxazine-2,3-dione III/35c2 2.2:364 
ONH 
30915 C8H5NO3 
163.13 
118-48-9 O 
O 1H-Benzo[d][1,3]oxazine-2,4-dione; 
1H-Benzo[d][1,3]oxazine-2,4-dione; 
2H-3,1-Benzoxazine-2,4(1H)-dione; 
Isatoic anhydride 
III/35e 2.2.1:626 
NH O 
30916 C8H5NO4 
179.13 
O 4-Nitro-3H-isobenzofuran-1-one; 
4-Nitro-3H-isobenzofuran-1-one 
III/35e 2.2.1:627 
O 
NO2 
30917 C8H5NO4 
179.13 
O 
7-Nitro-3H-isobenzofuran-1-one; 
7-Nitro-3H-isobenzofuran-1-one 
III/35e 2.2.1:628 
ONO2 
30918 C8H5N3 
143.15 
NN N 
1,4,7b-Triaza-cyclopenta[cd]indene III/35b 3.2:841 
30919 C8H5N3O 
159.15 
NC 
CN 
O 
NH2 
2-(5-Amino-furan-2-ylmethylene)-
malononitrile 
III/35c2 2.2:365 
30920 C8H5N3O3 
191.14 
O2N 
O 
N(+) 
N(-) 2-Diazo-1-(4-nitro-phenyl)-ethanone III/35e 2.2.1:629; 
III/35e 2.2.3:3476 
30921 C8H5N3O4 
207.14 
2379-56-8 
NH 
NH 
O2N 
O 
O 6-Nitro-1,4-dihydro-quinoxaline-2,3-dione III/35e 2.2.1:630 
30922 C8H5N5O 
187.16 
N 
O 
NN 
N(-) 
N(+)Ph 
C8H5N5O III/35c2 2.2:366 
30923 C8H5O3Re 
335.33 (-) 
C Re(+)O 
Cyclopentadienyl-tricarbonyl-rhenium III/35c4 2.2:713 
C O 
C 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
30924 C8H5O3Tc 
248.03 (-) 
C Tc(+)O 
Cyclopentadienyl-tricarbonyl-technetium III/35c4 2.2:714 
C O 
C 
O 
30925 C8H5O3W 
332.96 
O 
C 
O 
C 
Cyclopentadienyl-tricarbonyl-tungsten (1) 
III/35e 2.2.7:4951 
W 
C 
(-)O 
30926 C8H6BCl3N2O 
263.32 B 
OH C8H6BCl3N2O III/35a 2.2:746 
NH 
N CCl3 
30927 C8H6BFe2NO6S2 
398.77 N 
H3C CH3 C8H6BFe2NO6S2 III/35a 2.2:747 
B 
SS 
FeFe C OCO 
CC 
C OO C 
OO 
30928 C8H6BrF3O2Si 
299.12 
O 
F 
4-Bromo-benzoic acid trifluorosilanylmethyl 
ester 
III/35e 2.2.1:631 
O Si 
F F 
Br 
30929 C8H6BrN 
196.04 
Br 5-Bromo-1H-indole; 
5-bromoindole 
III/35b 3.2:842 
10075-50-0 
NH 
30930 C8H6BrNO2 
228.04 
Br 
NO2 
1-Bromo-4-(2-nitro-vinyl)-benzene III/35e 2.2.3:3477 
30931 C8H6BrNSe 
275.0 
N 
Se 
CH3 
Br 
5-Bromo-2-methyl-benzoselenazole III/35c4 2.2:715 
30932 C8H6Br4O2 
453.75 OBr 
Br 1,2,3,4-Tetrabromo-5,6-dimethoxy-benzene III/35e 2.2.2:2657 
CH3 
Br O 
CH3 
Br 
30933 C8H6ClFO2 
188.58 Cl 
F 
COOH 
Cl 
F 
COOH+ 
(R,S)-(3-Chloro-phenyl)-fluoro-acetic acid III/35b 2.2:484 
30934 C8H6ClFO2 
188.58 
74590-69-5 
F 
COOH 
Cl 
F 
COOH 
Cl 
+ 
(R,S)-(4-Chloro-phenyl)-fluoro-acetic acid III/35b 2.2:485 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
30935 C8H6ClF3 
194.58 
F3C 
Cl 1-Chloro-4-(2,2,2-trifluoro-ethyl)-benzene III/35b 2.2:487 
30936 C8H6ClF3 
194.58 CF3 
Cl 
1-Chloro-2-(2,2,2-trifluoro-ethyl)-benzene III/35b 2.2:489 
30937 C8H6ClF3O 
210.58 Cl 
CF3 
OH 
Cl+ CF3 
OH (R,S)-1-(3-Chloro-phenyl)-2,2,2-trifluoro-
ethanol 
III/35b 2.2:491 
30938 C8H6ClF3O2Si 
254.67 
O 
F 
4-Chloro-benzoic acid trifluorosilanylmethyl 
ester 
III/35e 2.2.1:632 
O Si 
F F 
Cl 
30939 C8H6ClF12O2P 
428.54 
P 
O 
O 
F3C 
CF3 
CF3F3C 
Cl 
H3C 
H3C 
2-Chloro-2,2-dimethyl-3,3,5,5-tetrakis-
trifluoromethyl-2.5-[1,4,2]dioxaphospholane 
III/35a 3.2:685 
30940 C8H6ClN 
151.59 
1-Chloro-1H-indole III/35c2 2.2:367 
N 
Cl 
30941 C8H6ClN 
151.59 
Cl 5-Chloro-1H-indole; 
5-chloroindole 
III/35b 3.2:843 
17422-32-1 
NH 
30942 C8H6ClNO2 
183.59 
Cl 
NO2 
1-Cloro-4-(2-nitro-vinyl)-benzene III/35e 2.2.3:3478 
30943 C8H6ClNS 
183.66 
4146-24-1 CH3 
Cl S 
N 6-Chloro-2-methyl-benzothiazole III/35c2 2.2:368 
30944 C8H6ClNSe 
230.55 
N 
Se 
CH3 
Cl 
5-Chloro-2-methyl-benzoselenazole III/35c4 2.2:716 
30945 C8H6Cl2N4 
229.07 
NH2Cl N 6,7-Dichloro-quinoxaline-2,3-diamine III/35c2 2.2:369 
NH2Cl N 
30946 C8H6Cl2O 
189.04 
Ph 
O 
Cl 
Cl (2,2-Dichloro-vinyloxy)-benzene III/35e 2.2.2:2658 
30947 C8H6Cl2O3 
221.04 
Cl 
O 
2,5-Dichloro-4-hydroxy-3-methoxy-
benzaldehyde 
III/35e 2.2.1:633 
HO Cl 
O 
CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
30948 C8H6Cl2O3 
221.04 
ClHO 2,6-Dichloro-4-hydroxy-3-methoxy-
benzaldehyde 
III/35e 2.2.1:634 
O 
OH3C 
Cl 
30949 C8H6Cl2O3 
221.04 
O 
Cl 
Cl 
CH3 
OH 
O 
2,3-Dichloro-4-hydroxy-5-methoxy-
benzaldehyde 
III/35e 2.2.1:635 
30950 C8H6Cl3NO 
238.5 
Cl 
Cl O 
Cl 
Cl O 
(R,S)-4,6,7-Trichloro-3-methyl-2,3-dihydro-
furo[3,2-c]pyridine 
III/35c2 2.2:370 
N N 
+ 
CH3Cl CH3Cl 
30951 C8H6Cl4O2 
275.94 OCl 
Cl 1,2,3,4-Tetrachloro-5,6-dimethoxy-benzene III/35e 2.2.2:2659 
CH3 
CH3 
Cl O 
Cl 
30952 C8H6Cl4O2 
275.94 OCl 
Cl 1,2,4,5-Tetrachloro-3,6-dimethoxy-benzene III/35e 2.2.2:2660 
CH3 
O Cl 
H3C 
Cl 
30953 C8H6CrO3 
202.13 
(-) 
(unknown relative positions) Cyclopentadienyl-tricarbonyl-
chromiumhydride (cis/trans) 
III/35c4 2.2:717 
O 
C 
C Cr(+)O 
C 
H O 
30954 C8H6D9Li 
127.2 
D3C CD3 
CH2(-) 
Li(+)D3C 
C8H6D9Li III/35c4 2.2:718 
30955 C8H6D9Li 
127.2 
D3C CD3 
CH2(-) Li(+) 
D3C 
C8H6D9Li III/35c4 2.2:719 
30956 C8H6FI 
248.04 
Ph 
F 
I 
((Z)-1-Fluoro-2-iodo-vinyl)-benzene III/35b 2.2:493 
30957 C8H6FN 
135.14 
F 5-Fluoro-1H-indole; 
5-fluoro-1H-indole 
III/35b 3.2:844 
399-52-0 
NH 
30958 C8H6FNO2 
167.14 
F 
NO2 
1-Fluro-4-(2-nitro-vinyl)-benzene III/35e 2.2.3:3479 
30959 C8H6FNS 
167.2 Ph 
S CN 
F 
Ph 
S CN 
F 
+ 
(R,S)-Fluoro-phenylsulfanyl-acetonitrile III/35b 2.2:494 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
30960 C8H6F2 
140.13 Ph 
FA 
FB ((E)-1,2-Difluoro-vinyl)-benzene III/35b 2.2:495 
30961 C8H6F2 
140.13 
Ph 
FA 
FB 
((Z)-1,2-Difluoro-vinyl)-benzene III/35b 2.2:496 
30962 C8H6F2INO2 
313.04 
133932-41-9 
O2N 
F 
I 
F 1-(1,1-Difluoro-2-iodo-ethyl)-4-nitro-
benzene 
III/35b 2.2:497 
30963 C8H6F2I2 
393.94 
Ph 
FF 
I 
I 
(1,1-Difluoro-2,2-diiodo-ethyl)-benzene III/35b 2.2:498 
30964 C8H6F2O 
156.13 
O 
F 
F 
2-Fluoro-1-(4-fluoro-phenyl)-ethanone III/35b 2.2:500 
30965 C8H6F2O2 
172.13 
O 
O FPh 
F Benzoic acid difluoromethyl ester III/35b 2.2:502 
30966 C8H6F2Se 
219.09 
Ph 
Se 
F 
F (2,2-Difluoro-vinylselanyl)-benzene III/35b 2.2:503 
30967 C8H6F3NO 
189.13 
66046-34-2 OH 
F3C 
N 
4-Trifluoromethyl-benzaldehyde oxime III/35e 2.2.3:3480 
30968 C8H6F3NOS 
221.2 
F3C 
S 
Ph 
N 
OH 
2,2,2-Trifluoro-N-hydroxy-thioacetimidic 
acid phenyl ester 
III/35b 2.2:504 
30969 C8H6F3NO2 
205.13 
O2N 
CF3 
1-Nitro-3-(2,2,2-trifluoro-ethyl)-benzene III/35b 2.2:505 
30970 C8H6F3NO2 
205.13 
456-71-3 
O 
CF3 
O 
H2N 
4-Trifluoromethoxy-benzamide; 
4-trifluoromethoxy-benzoic acid amide 
III/35e 2.2.1:637 
30971 C8H6F3NO4Si 
265.22 
O2N 
F 
O 
F 
O 
Si 
F 
4-Nitro-benzoic acid trifluorosilanylmethyl 
ester 
III/35e 2.2.1:638; 
III/35e 2.2.3:3481 
30972 C8H6F3N3O 
217.15 
N N 
O 
H5C2 
CN 
CF3 
4-Ethoxy-6-trifluoromethyl-pyrimidine-5-
carbonitrile 
III/35b 2.2:508 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
30973 C8H6F4O 
194.13 F 
F 
F 
O 
CH3 1-(3,3,6,6-Tetrafluoro-cyclohexa-1,4-
dienyl)-ethanone 
III/35b 2.2:510 
F 
30974 C8H6F4O 
194.13 Ph 
O 
F 
F 
F 
F (1,1,2,2-Tetrafluoro-ethoxy)-benzene III/35e 2.2.2:2661 
30975 C8H6F4O 
194.13 
F 
OH 
CF3 + 
F 
OH 
CF3 
(R,S)-2,2,2-Trifluoro-1-(4-fluoro-phenyl)-
ethanol 
III/35b 2.2:509 
30976 C8H6F4O2Si 
238.21 
O 4-Fluoro-benzoic acid trifluorosilanylmethyl 
ester 
III/35e 2.2.1:639 
F 
O Si 
FF 
F 
30977 C8H6F4S 
210.19 Ph 
S CF3 
F 
+ Ph 
S CF3 
F 
((R,S)-1,2,2,2-Tetrafluoro-ethylsulfanyl)-
benzene 
III/35b 2.2:511 
30978 C8H6F6 
216.12 F F 
F 
F 
F 
F 
(1E,5E)-1,4,4,5,8,8-Hexafluoro-cycloocta-
1,5-diene 
III/35b 2.2:512 
30979 C8H6F6N2O 
260.14 
F 
FF 
CF3 
O 
H2N N 
5-((R,S)-1,1,2,3,3,3-Hexafluoro-propoxy)-
pyridin-2-ylamine 
III/35c2 2.2:371 
+ 
F 
FF 
CF3 
O 
H2N N 
30980 C8H6F7OP 
282.1 
FH3C P 
F 
F 
CH3 C8H6F7OP III/35a 3.2:686 
F O 
F F 
F 
30981 C8H6F13O2P 
412.08 
P 
O 
O 
F3C 
CF3 
CF3F3C 
F 
H3C 
H3C 
2-Fluoro-2,2-dimethyl-3,3,5,5-tetrakis-
trifluoromethyl-2.5-[1,4,2]dioxaphospholane 
III/35a 3.2:687 
30982 C8H6FeO5 
237.97 
Fe 
O 
C OCO 
CC 
C8H6FeO5 III/35c4 2.2:720 
OO 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
30983 C8H6FeO6 
253.97 
CH2 
O 
FeCO 
C 
O 
O 
H3C C8H6FeO6 III/35c4 2.2:721 
C 
C O 
O 
30984 C8H6Fe2O6S2 
373.95 
19976-87-5 
See appendix No: 30984 Bis[tricarbonyl(methylthio)iron]; 
Iron, hexacarbonylbis[-
(methanethiolato)]di-, (Fe-Fe), 
stereoisomer 
III/35e 2.2.7:4624 
30985 C8H6LiP 
140.05 
C8H6LiP III/35a 3.2:688 
P 
Li 
30986 C8H6N2 
130.15 
N Quinoxaline III/35b 3.2:846 
91-19-0 
N 
30987 C8H6N2 
130.15 
253-66-7 
N 
N 
Cinnoline III/35b 3.2:845 
30988 C8H6N2O 
146.15 
Ph 
N(-) 
O 
N(+) 
2-Diazo-1-phenyl-ethanone III/35e 2.2.1:640 
30989 C8H6N2O 
146.15 
O Benzamide, 4-cyano-; 
4-Cyano-benzamide; 
III/35e 2.2.1:641 
3034-34-2 NH2 
p-cyanobenzamide 
NC 
30990 C8H6N2O 
146.15 
N Pyrrolo[1,2-a]pyrimidine-6-carbaldehyde III/35c2 2.2:372 
N 
O 
30991 C8H6N2O 
146.15 
N Quinoxaline 1-oxide; 
quinoxaline N-oxide 
III/35e 2.2.3:3482 
6935-29-1 
N(+) 
O(-) 
30992 C8H6N2OS 
178.21 
O 2-Thioxo-2,3-dihydro-1H-quinazolin-4-one III/35b 3.2:847 
NH 
NH S 
30993 C8H6N2O2 
162.15 
120-06-9 N(+) 
ON 
O(-)Ph 
1,2,3-Oxadiazolium, 5-hydroxy-3-phenyl-, 
inner salt 
III/35e 2.2.2:2662 
30994 C8H6N2O2 
162.15 
6-Nitro-1H-indole; 
6-Nitro-1H-indole 
III/35e 2.2.3:3485 
4769-96-4 
NHO2N 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
30995 C8H6N2O2 
162.15 
NO2 1H-Indole, 4-nitro-; 
4-Nitro-1H-indole; 
III/35e 2.2.3:3483 
4769-97-5 4-Nitro-1H-indole 
NH 
30996 C8H6N2O2 
162.15 
6146-52-7 
O2N 5-Nitro-1H-indole; 
5-Nitro-1H-indole; 
5-nitroindole 
III/35b 3.2:848; 
III/35e 2.2.3:3484 
NH 
30997 C8H6N2O2 
162.15 
7-Nitro-1H-indole; 
7-Nitro-1H-indole; 
III/35e 2.2.3:3486 
6960-42-5 7-nitro-indole 
NH 
NO2 
30998 C8H6N2O2 
162.15 
N(+) 
O(-) 
O 
NH 
C8H6N2O2 III/35c2 2.2:373 
30999 C8H6N2O2 
162.15 
NH O 1,4-Dihydro-quinoxaline-2,3-dione III/35e 2.2.1:642 
NH O 
31000 C8H6N2O2 
162.15 
2423-66-7 N(+) 
N(+) 
O(-) 
O(-) 
Quinoxaline, 1,4-dioxide; 
Quinoxaline 1,4-dioxide 
III/35e 2.2.3:3487 
31001 C8H6N2O2S2 
226.28 S 
2'-Nitro-[3,3']bithiophenyl-2-ylamine III/35c2 2.2:374 
O2N 
H2N S 
31002 C8H6N2O4 
194.14 
O2N 
NO2 
1-Nitro-4-(2-nitro-vinyl)-benzene III/35e 2.2.3:3488 
31003 C8H6N2O6 
226.14 
18959-17-6 
O2N NO2 
O 
CH3 
O Benzoic acid, 2,4-dinitro-, methyl ester; 
2,4-Dinitro-benzoic acid methyl ester 
III/35e 2.2.3:3489 
31004 C8H6N4 
158.16 CN 
N 3-Amino-imidazo[1,2-a]pyridine-2-
carbonitrile 
III/35c2 2.2:375 
N 
NH2 
31005 C8H6O2S 
166.2 
S 
O 
O 
2-Thiophen-2-ylmethylene-malonaldehyde III/35e 2.2.1:645 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31006 C8H6O2S 
166.2 
O 3-Oxa-1-thia-naphthalen-4-one III/35e 2.2.1:646 
O 
S 
31007 C8H6O4 
166.13 
O (1R,2R,6S,7S)-4,10-Dioxa-
tricyclo[5.2.1.02,6]dec-8-ene-3,5-dione 
III/35e 2.2.1:647 
OO 
O 
31008 C8H7BFeO3 
217.79 (-) B 
Fe(+) C O 
C8H7BFeO3 III/35a 2.2:748 
C C 
O O 
31009 C8H7BrF2Se 
300.0 
Ph 
Se 
Br 
F F (2-Bromo-2,2-difluoro-ethylselanyl)-
benzene 
III/35b 2.2:513 
31010 C8H7BrO 
199.04 
70-11-1 Ph 
Br 
O 2-Bromo-1-phenyl-ethanone; 
Ethanone, 2-bromo-1-phenyl- 
III/35e 2.2.1:648 
31011 C8H7BrO 
199.04 
O 1-(4-Bromo-phenyl)-ethanone; 
Ethanone, 1-(4-bromophenyl)- 
III/35e 2.2.1:649 
99-90-1 CH3 
Br 
31012 C8H7BrO 
199.04 
O 4-Methylbenzoyl bromide III/35e 2.2.1:650 
874-58-8 Br 
H3C 
31013 C8H7BrO2 
215.04 
O 4-Methoxy-benzoyl bromide III/35e 2.2.1:653 
Br 
H3C 
O 
31014 C8H7BrO2 
215.04 
618-89-3 
O 
O 
Br CH3 
Benzoic acid, 3-bromo-, methyl ester; 
3-Bromo-benzoic acid methyl ester 
III/35e 2.2.1:651 
31015 C8H7BrO2 
215.04 
619-42-1 
O 
O 
Br 
CH3 
Benzoic acid, 4-bromo-, methyl ester; 
4-Bromo-benzoic acid methyl ester 
III/35e 2.2.1:652 
31016 C8H7BrO3 
231.04 
Br 
O 
3-Bromo-4-hydroxy-5-methoxy-
benzaldehyde 
III/35e 2.2.1:655 
HO 
O 
H3C 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31017 C8H7BrO3 
231.04 
60632-40-8 
O 
Br 
CH3 
O 
OH 
2-Bromo-4-hydroxy-5-methoxy-
benzaldehyde 
III/35e 2.2.1:656 
31018 C8H7BrO3 
231.04 
89984-24-7 O 
Br 
CH3 
O 
OH 
2-Bromo-4-hydroxy-3-methoxy-
benzaldehyde 
III/35e 2.2.1:654 
31019 C8H7ClF2S 
208.66 
Ph 
S 
Cl 
F F (2-Chloro-2,2-difluoro-ethylsulfanyl)-
benzene 
III/35b 2.2:514 
31020 C8H7ClN2 
166.61 
H5C2 CN 
ClN 
2-Chloro-5-ethyl-nicotinonitrile III/35c2 2.2:376 
31021 C8H7ClN2 
166.61 
Cl 4-Chloro-1-methyl-1H-benzoimidazole III/35c2 2.2:377 
N 
N 
CH3 
31022 C8H7ClO 
154.59 
O 
Ph Cl 
(2-Chloro-vinyloxy)-benzene III/35e 2.2.2:2664 
31023 C8H7ClO 
154.59 
Cl O CH2 1-Chloro-3-vinyloxy-benzene III/35e 2.2.2:2665 
31024 C8H7ClO 
154.59 
O CH2 1-Chloro-4-vinyloxy-benzene; 
(4-chloro-phenyl)-vinyl ether 
III/35e 2.2.2:2666 
1074-56-2 
Cl 
31025 C8H7ClO2 
170.59 
O o-Anisoyl chloride; 
Benzoyl chloride, 2-methoxy-; 
III/35e 2.2.1:664 
21615-34-9 Cl 2-Methoxy-benzoyl chloride; 
2-methoxybenzoyl chloride 
CH3 
O 
31026 C8H7ClO2 
170.59 
1878-65-5 
Cl 
COOH 
Benzeneacetic acid, 3-chloro-; 
(3-Chloro-phenyl)-acetic acid; 
m-chlorophenylacetic acid; 
3-Chlorphenylessigsure 
III/35e 2.2.1:667 
31027 C8H7ClO2 
170.59 
501-53-1 Ph ClO 
O benzyl chloroformate; 
Carbonochloridic acid, phenylmethyl ester 
III/35e 2.2.1:660 
31028 C8H7ClO2 
170.59 
610-96-8 
O 
O 
Cl 
CH3 
2-Chloro-benzoic acid methyl ester; 
methyl 2-chlorobenzoate 
III/35e 2.2.1:661 
31029 C8H7ClO2 
170.59 
1878-66-6 
Cl 
COOH 
(4-Chlorophenyl)acetic acid III/35e 2.2.1:668 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31030 C8H7ClO2 
170.59 
2444-36-2 
Cl 
COOH 
(2-Chloro-phenyl)-acetic acid; 
o-chlorophenylacetic acid 
III/35e 2.2.1:666 
31031 C8H7ClO2 
170.59 
2905-65-9 
O 
O 
Cl CH3 
3-Chloro-benzoic acid methyl ester; 
methyl 3-chlorobenzoate 
III/35e 2.2.1:662 
31032 C8H7ClO3 
186.59 
HO 
Cl 
CH3 
O 
O 
3-Chloro-4-hydroxy-5-methoxy-
benzaldehyde 
III/35e 2.2.1:670 
31033 C8H7ClO3 
186.59 
18268-76-3 
Cl 
O 
O 
CH3 
OH 
2-Chloro-4-hydroxy-5-methoxy-
benzaldehyde 
III/35e 2.2.1:671 
31034 C8H7ClO3 
186.59 
82668-20-0 Cl 
CH3 
OH 
O 
O 
2-Chloro-4-hydroxy-3-methoxy-
benzaldehyde 
III/35e 2.2.1:669 
31035 C8H7ClO4S 
234.66 
63555-50-0 
O 
S 
Cl O 
CH3 
OO Benzoic acid, 3-(chlorosulfonyl)-, methyl 
ester; 
3-Chlorosulfonyl-benzoic acid methyl ester 
III/35e 2.2.1:672; 
III/35e 2.2.5:4154 
31036 C8H7ClO4S 
234.66 
69812-51-7 
S 
OO 
O 
CH3 
O 
Cl 
4-Chlorosulfonyl-benzoic acid methyl ester III/35e 2.2.1:673; 
III/35e 2.2.5:4155 
31037 C8H7Cl3O2 
241.5 
Cl 
H3C 
O 
O 
H3C 
Cl 
Cl 
1,2,3-Trichloro-4,5-dimethoxy-benzene III/35e 2.2.2:2675 
31038 C8H7Cl3O2 
241.5 
Cl 
H3C 
O 
Cl Cl 
O 
CH3 1,2,5-Trichloro-3,4-dimethoxy-benzene III/35e 2.2.2:2676 
31039 C8H7Cl3O2 
241.5 
O 
H3C 
Cl 
O Cl 
Cl 
CH3 
1,3,4-Trichloro-2,5-dimethoxy-benzene III/35e 2.2.2:2677 
31040 C8H7Cl4NO6 
354.96 
See appendix No: 31040 2-Chloro-2-((R,S)-4-oxo-2-trichloromethyl-
[1,3]oxazetidin-2-yl)-malonic acid dimethyl 
ester 
III/35c2 2.2:378 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31041 C8H7F 
122.14 Ph 
F 
((Z)-2-Fluoro-vinyl)-benzene III/35b 2.2:515 
31042 
122.14 
C8H7F 
Ph 
F ((E)-2-Fluoro-vinyl)-benzene III/35b 2.2:516 
31043 C8H7FO2 
154.14 
O 
O 
F 
(E)-1-Fluoro-4-furan-2-yl-but-3-en-2-one III/35b 2.2:520 
31044 C8H7FO2 
154.14 
403-33-8 CH3 
O 
O 
F 
Benzoic acid, 4-fluoro-, methyl ester; 
4-Fluoro-benzoic acid methyl ester 
III/35e 2.2.1:677 
31045 C8H7FO2 
154.14 
455-68-5 F 
O 
O 
CH3 
3-Fluoro-benzoic acid methyl ester III/35e 2.2.1:676 
31046 C8H7FO2 
154.14 
701-53-1 
O 
F 
O 
H3C 
p-anisoyl fluoride; 
4-Methoxy-benzoyl fluoride; 
p-methoxybenzoyl fluoride 
III/35b 2.2:522; 
III/35e 2.2.1:678 
31047 C8H7FO2 
154.14 
1578-63-8 Ph 
F 
COOH Ph 
F 
+ 
COOH 
Benzeneacetic acid, a-fluoro-; 
(R,S)-Fluoro-phenyl-acetic acid; 
a-Fluorophenyl acetic acid; 
fluorophenylacetic acid 
III/35b 2.2:521 
31048 C8H7FO4S 
218.2 S 
O 
CH3 
OOO 
F 
3-Fluorosulfonyl-benzoic acid methyl ester III/35e 2.2.1:680; 
III/35e 2.2.5:4156 
31049 C8H7FO4S 
218.2 
S 
O 
CH3 
O 
OO 
F 
4-Fluorosulfonyl-benzoic acid methyl ester III/35e 2.2.1:681; 
III/35e 2.2.5:4157 
31050 C8H7F2I 
268.04 
Ph 
F F 
I 
(1,1-Difluoro-2-iodo-ethyl)-benzene III/35b 2.2:524 
31051 C8H7F2NO2 
187.14 
32471-55-9 
FF 
O2N 
1-(1,1-Difluoro-ethyl)-4-nitro-benzene III/35b 2.2:525 
31052 C8H7F3 
160.14 
21249-93-4 
Ph CF3 
2,2,2-trifluoro-1-phenylethane; 
(2,2,2-Trifluoro-ethyl)-benzene 
III/35b 2.2:526 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31053 C8H7F3N2O2 
220.15 
O 
CH3O 
F3C 
3-(5-Trifluoromethyl-1H-imidazol-4-yl)-
acrylic acid methyl ester 
III/35c2 2.2:379 
N 
NH 
31054 C8H7F3O 
176.14 
O 
CH3 
F3C 
1-Methoxy-4-trifluoromethyl-benzene III/35e 2.2.1:901; 
III/35e 2.2.2:2668 
31055 C8H7F3O 
176.14 OH 
4-(trifluoromethyl)benzylic alcohol; 
(4-Trifluoromethyl-phenyl)-methanol 
III/35e 2.2.2:2667 
349-95-1 
F3C 
31056 C8H7F3O 
176.14 
340-05-6 Ph 
OH 
CF3 Ph 
OH 
CF3 
+ 
Benzenemethanol, a-(trifluoromethyl)-, ()-; 
1-Phenyl-2,2,2-trifluorethanol; 
(R,S)-2,2,2-Trifluoro-1-phenyl-ethanol; 
() a-(trifluoromethyl)benzyl alcohol 
III/35b 2.2:527 
31057 C8H7F3OS 
208.2 
Ph 
S 
O 
CF3 
(2,2,2-Trifluoro-ethanesulfinyl)-benzene III/35b 2.2:528 
31058 C8H7F3OSe 
255.1 
Ph 
Se 
O 
CF3 
C8H7F3OSe III/35b 2.2:529 
31059 C8H7F3O2 
192.13 
O 4,4,4-Trifluoro-1-furan-3-yl-butan-1-one III/35b 2.2:530 
CF3 
O 
31060 C8H7F3O2Si 
220.22 Ph 
O 
O Si 
F 
F F Benzoic acid trifluorosilanylmethyl ester III/35e 2.2.1:682 
31061 C8H7F3S 
192.2 Ph S 
CF3 Trifluoromethylsulfanylmethyl-benzene III/35b 2.2:531 
31062 C8H7F3Se 
239.1 Ph 
Se CF3 (2,2,2-Trifluoro-ethylselanyl)-benzene III/35b 2.2:532 
31063 C8H7F3Te 
287.74 Ph 
Te CF3 (2,2,2-Trifluoro-ethyltellanyl)-benzene III/35b 2.2:533 
31064 C8H7F5O2 
230.13 
O 
C2F5 
O O 
C2F5 
O 
+ 
(R,S)-2-(2,2,3,3,3-Pentafluoro-propionyl)-
cyclopentanone 
III/35b 2.2:535 
31065 C8H7F6NO3 
279.14 
N O 
HO 
H O (6S,7aS)-6-Hydroxy-3,3-bis-trifluoromethyl-
tetrahydro-pyrrolo[1,2-c]oxazol-1-one 
III/35b 2.2:536 
F3C CF3 
31066 C8H7F6NO6S2 
391.26 
2-methyl-1-trifluoromethanesulfonyloxy-
pyridinium trifluoro-methanesulfonate 
III/35b 2.2:537 
N(+)H3C O(-) 
S 
CF3 
O 
S 
CF3 O O 
O O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31067 C8H7F6NO6S2 
391.26 
H3C 3-methyl-1-trifluoromethanesulfonyloxy-
pyridinium trifluoro-methanesulfonate 
III/35b 2.2:538 
N(+) O(-) 
S 
CF3 
O 
S 
CF3 O O 
O O 
31068 C8H7F6NO6S2 
391.26 
CH3 4-methyl-1-trifluoromethanesulfonyloxy-
pyridinium trifluoro-methanesulfonate 
III/35b 2.2:539 
N(+) O(-) 
S 
CF3 
O 
S 
CF3 O O 
O O 
31069 C8H7FeO2 
190.99 (-) 
(Methylcyclopentadienyl)-irondicarbonyl 
(1+) 
III/35e 2.2.7:4625 
Fe(2+) 
C C 
O O 
31070 C8H7IO2 
262.04 
618-91-7 I 
O 
CH3 
O Benzoic acid, 3-iodo-, methyl ester; 
3-Iodo-benzoic acid methyl ester; 
methyl 3-iodobenzoate; 
Methyl-m-iodobenzoate 
III/35e 2.2.1:683 
31071 C8H7IO2 
262.04 
619-44-3 
O 
O 
CH3 
I 
Benzoic acid, 4-iodo-, methyl ester; 
4-Iodo-benzoic acid methyl ester 
III/35e 2.2.1:684 
31072 C8H7NO 
133.15 
614-68-6 
N 
C 
O 
CH3 
Benzene, 1-isocyanato-2-methyl-; 
1-Isocyanato-2-methyl-benzene 
III/35e 2.2.1:686 
31073 C8H7NO 
133.15 
622-58-2 
N 
C 
O 
H3C 
Benzene, 1-isocyanato-4-methyl-; 
1-Isocyanato-4-methyl-benzene 
III/35e 2.2.1:687 
31074 C8H7NO 
133.15 OH 
p-cyanobenzyl alcohol; 
4-Hydroxymethyl-benzonitrile 
III/35e 2.2.2:2670 
874-89-5 
NC 
31075 C8H7NO 
133.15 
O 
N 
6,7-Dihydro-[1]pyrindin-5-one III/35c2 2.2:380 
31076 C8H7NO 
133.15 
NH 
O 2,3-Dihydro-isoindol-1-one III/35e 2.2.1:688 
31077 C8H7NO 
133.15 
59-48-3 
NH 
O 
1,3-Dihydro-indol-2-one; 
2,3-dihydroindol-2-one 
III/35b 3.2:851 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31078 C8H7NO 
133.15 
CH3 1,2-Benzisoxazole, 3-methyl-; 
3-Methyl-benzo[d]isoxazole 
III/35b 3.2:852 
4825-75-6 
N 
O 
31079 C8H7NOS 
165.21 N 
CH3 3-Methyl-3H-benzooxazole-2-thione III/35b 3.2:853 
S 
O 
31080 C8H7NOS 
165.21 
N 
S 
CH3 2-Methylsulfanyl-benzooxazole III/35b 3.2:854 
O 
31081 C8H7NOS 
165.21 
OH 7-Methyl-benzothiazol-4-ol III/35c2 2.2:381 
N 
S 
CH3 
31082 C8H7NOSe 
212.11 OH 
(2-Selenocyanato-phenyl)-methanol III/35e 2.2.2:2671 
CN 
Se 
31083 C8H7NO2 
149.15 
OH OH (R,S)-3-Hydroxy-2,3-dihydro-isoindol-1-one III/35c2 2.2:383 
NH + NH 
O O 
31084 C8H7NO2 
149.15 
NHO 
O Benzo[1,4]dioxin-2-ylideneamine III/35c2 2.2:382 
31085 C8H7NO2S 
181.21 
O 
CH3 
NC 
S 
O 
4-Cyano-benzenesulfinic acid methyl ester III/35e 2.2.5:4158 
31086 C8H7NO2S 
181.21 
SHO 
O 
SH 
NH 
O 
+ 
(R,S)-2-Mercapto-4H-benzo[1,4]oxazin-3-
one 
III/35c2 2.2:384 
ONH 
31087 C8H7NO2Si 
177.23 
N SiH3 
O 2-Silanyl-isoindole-1,3-dione III/35c4 2.2:722 
O 
31088 C8H7NO3 
165.15 
100-19-6 CH3 
O 
O2N 
Acetophenone, 4'-nitro-; 
1-Acetyl-4-nitrobenzene; 
Ethanone, 1-(4-nitrophenyl)-; 
1-(4-Nitrophenyl)ethanone 
III/35e 2.2.1:690; 
III/35e 2.2.3:3492 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31089 C8H7NO3 
165.15 
O2N O CH2 1-Nitro-3-vinyloxy-benzene III/35e 2.2.2:2672; 
III/35e 2.2.3:3493 
31090 C8H7NO3 
165.15 
940-14-7 
O2N 
O CH2 1-Nitro-4-vinyloxy-benzene; 
(4-nitro-phenyl)-vinyl ether 
III/35e 2.2.2:2673; 
III/35e 2.2.3:3494 
31091 C8H7NO3 
165.15 
HO 
NO2 
4-(2-Nitro-vinyl)-phenol III/35e 2.2.3:3491 
31092 C8H7NO3 
165.15 H3C 
O 
O 
O 
N 
6-Formyl-nicotinic acid methyl ester III/35c2 2.2:386 
31093 C8H7NO3 
165.15 
O 
OH 
NH 
O 
O 
OH 
NH 
O 
+ 
(R,S)-2-Hydroxy-4H-benzo[1,4]oxazin-3-
one 
III/35c2 2.2:385 
31094 C8H7NO3S 
197.21 
O2N 
S CH3 
O 
Thioacetic acid S-(4-nitro-phenyl) ester; 
Thioacetic acid S-(4-nitro-phenyl) ester 
III/35e 2.2.1:697 
31095 C8H7NO4 
181.15 
3740-52-1 
COOH 
NO2 
Benzeneacetic acid, 2-nitro-; 
(2-Nitro-phenyl)-acetic acid; 
2-nitrophenylacetic acid; 
o-Nitrophenylacetic acid 
III/35e 2.2.1:694 
31096 C8H7NO4 
181.15 
1877-73-2 
O2N 
COOH 
Benzeneacetic acid, 3-nitro-; 
(3-Nitro-phenyl)-acetic acid; 
3-nitrophenylacetic acid; 
3-Nitrophenylessigsure 
III/35e 2.2.1:695 
31097 C8H7NO4 
181.15 
104-03-0 
O2N 
COOH 
Acetic acid, (p-nitrophenyl)-; 
Benzeneacetic acid, 4-nitro-; 
(4-Nitrophenyl)acetic acid; 
(p-Nitrophenyl)acetic acid 
III/35e 2.2.1:696 
31098 C8H7NO4 
181.15 
830-03-5 
O2N 
CH3 
O 
O Acetic acid 4-nitro-phenyl ester; 
Acetic acid, 4-nitrophenyl ester; 
Acetic acid, p-nitrophenyl ester; 
Phenol, p-nitro-, acetate 
III/35e 2.2.3:3496 
31099 C8H7NO4 
181.15 
618-95-1 O2N 
O 
O 
CH3 
Benzoic acid, 3-nitro-, methyl ester; 
3-Nitro-benzoic acid methyl ester 
III/35e 2.2.1:692; 
III/35e 2.2.3:3495 
31100 C8H7NO4 
181.15 
619-50-1 
O2N 
O 
O 
CH3 
Benzoic acid, 4-nitro-, methyl ester; 
4-Nitro-benzoic acid methyl ester 
III/35e 2.2.1:693; 
III/35e 2.2.2:2674; 
III/35e 2.2.3:3497 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31101 C8H7NO4 
181.15 
O 1-(2-Hydroxy-5-nitro-phenyl)-ethanone III/35e 2.2.2:2678 
1450-76-6 NO2H3C 
HO 
31102 C8H7NO4 
181.15 
6322-56-1 CH3 
HO 
O 
O2N 
1-(4-Hydroxy-3-nitro-phenyl)-ethanone III/35e 2.2.3:3498 
31103 C8H7NO4 
181.15 
24202-74-2 O 
CH3 
O 
Pyridine-3,4-dicarboxylic acid 4-methyl 
ester 
III/35c2 2.2:387 
COOH 
N 
31104 C8H7NS 
149.21 
H3C S Benzothiazole, 6-methyl-; 
6-Methylbenzothiazole 
III/35c2 2.2:388 
2942-15-6 
N 
31105 C8H7NS2 
181.28 
615-22-5 
S 
N 
S 
CH3 2-Methylsulfanyl-benzothiazole; 
2-(methylthio)benzothiazole 
III/35b 3.2:857 
31106 C8H7NS2 
181.28 
2254-94-6 N 
CH3 3-Methyl-3H-benzothiazole-2-thione; 
3-methylbenzothiazole-2(3H)-thione 
III/35b 3.2:856 
S 
S 
31107 C8H7NSe 
196.11 
2818-88-4 
Se 
N 
CH3 
Benzoselenazole, 2-methyl-; 
2-Methyl-benzoselenazole 
III/35b 3.2:858; 
III/35c4 2.2:723 
31108 C8H7NTe 
244.75 Ph Te 
CN C8H7NTe III/35c4 2.4:3355 
31109 C8H7N3 
145.16 Ph 
NH 
NN 
3-Phenyl-4H-[1,2,4]triazole III/35c2 2.2:389 
31110 C8H7N3O 
161.16 
O(-) 
CH3N 
N(+) 
N 3-Methyl-benzo[1,2,4]triazine 2-oxide III/35c2 2.2:390 
31111 C8H7N3O2 
177.16 
5228-49-9 N 
O2N 1-Methyl-5-nitro-1H-indazole; 
1-methyl-5-nitro-1H-indazole; 
1-methyl-5-nitroindazole 
III/35b 3.2:859 
N 
CH3 
31112 C8H7N3O2 
177.16 
5228-48-8 
N 
N 
O2N 
CH3 
2-Methyl-5-nitro-2H-indazole; 
2-methyl-5-nitro-2H-indazole; 
2-methyl-5-nitroindazole 
III/35b 3.2:860 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31113 C8H7N3O5 
225.16 
NH CH3 Acetamide, N-(2,4-dinitrophenyl)-; 
N-(2,4-Dinitro-phenyl)-acetamide; 
III/35e 2.2.3:3499 
610-53-7 O N-(2,4-Dinitro-phenyl)-acetamide; 
O2N NO2 2',4'-dinitroacetanilide 
31114 C8H7N3S 
177.23 NH2 
NN 
S 
6-Thiophen-3-yl-pyridazin-3-ylamine III/35c2 2.2:391 
31115 C8H7O 
119.14 O(+)H3C 
p-Tolylmethylidyne-oxonium III/35e 2.2.1:698 
31116 C8H7O2 
135.14 O(+)O 
H3C 
4-Methoxy-phenylmethylidyne-oxonium III/35e 2.2.1:699 
31117 C8H7O2 
135.14 H3C 
O 4-Methyl-benzoic acid anion III/35e 2.2.1:700 
O(-) 
31118 C8H7O3 
151.14 
O(-) 
O 
O 
H3C 
4-Methoxy-benzoic acid anion III/35e 2.2.1:701 
31119 C8H7O5PW 
397.95 
CH3 C8H7O5PW III/35a 3.2:689 
C 
O 
C 
O 
C 
C 
O 
H2C PH2 
W 
C 
O 
O 
31120 C8H7O5PW 
397.95 
C 
O 
C 
O 
C 
C 
O 
PH2 
W 
C 
O 
H3C C8H7O5PW III/35a 3.2:690 
O 
31121 C8H8BN 
128.97 B 
N 
C8H8BN III/35a 2.2:749 
31122 C8H8BNO2 
160.97 B 
OH C8H8BNO2 III/35a 2.2:750 
OH 
NH 
31123 C8H8BNO2 
160.97 B 
OH C8H8BNO2 III/35a 2.2:679 
O 
N CH3 
31124 C8H8BrF 
203.05 
Ph 
F 
Br 
Ph 
+ 
F 
Br 
((R,S)-2-Bromo-1-fluoro-ethyl)-benzene III/35b 2.2:540 
31125 C8H8BrN 
198.06 N 
CH3 
Br 
C8H8BrN III/35b 3.2:861 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31126 C8H8BrNO 
214.06 
103-88-8 
31127 C8H8BrNO 
214.06 
27466-83-7 
31128 C8H8BrNO 
214.06 
31129 C8H8BrNO3 
246.06 
31130 C8H8Br2O2 
295.96 
31131 C8H8ClFS 
190.67 
31132 C8H8ClN 
153.61 
31133 C8H8ClNO 
169.61 
6873-44-5 
31134 C8H8ClNO2 
185.61 
2150-88-1 
31135 C8H8ClNO2 
185.61 
940-36-3 
31136 C8H8ClOP 
186.57 
NH CH3 
Br 
O 
NH 
Br 
O 
CH3 
N 
CH3Br 
O 
N 
CH3Br 
O 
+ 
CH3 
O 
H3C 
O 
O 
Br 
N 
Br 
H3C 
O 
O 
H3C Br 
Ph 
S 
F 
Cl 
Ph 
S 
F 
Cl 
+ 
N 
Cl 
NH 
Cl 
O 
CH3 
NH 
CH3 
O 
OCl 
NH 
CH3 
O 
O 
Cl 
P 
Cl 
O 
Acetamide, N-(4-bromophenyl)-; 
N-(4-Bromo-phenyl)-acetamide; 
N-(4-Bromo-phenyl)-acetamide 
4-Bromo-N-methyl-benzamide; 
4-Bromo-N-methyl-benzamide; 
N-methyl-p-bromobenzamide 
C8H8BrNO 
5-Bromo-6-methoxy-nicotinic acid methyl 
ester 
1,2-Dibromo-3,4-dimethoxy-benzene 
((R,S)-2-Chloro-1-fluoro-ethylsulfanyl)-
benzene 
1-(4-Chloro-phenyl)-aziridine 
4-Chloro-N-methyl-benzamide; 
4-Chloro-N-methyl-benzamide; 
N-methyl-p-chlorobenzamide 
(3-Chlorophenyl)-carbamic acid methyl 
ester 
Carbamic acid, (4-chlorophenyl)-, methyl 
ester; 
(4-Chloro-phenyl)-carbamic acid methyl 
ester; 
Methyl-N-p-chlorophenylcarbamate 
2-Chloro-1,3-dihydro-isophosphindole 2oxide 
III/35b 3.2:863; 
III/35e 2.2.1:702 
III/35e 2.2.1:703 
III/35b 3.2:862 
III/35c2 2.2:392 
III/35e 2.2.2:2679 
III/35b 2.2:541 
III/35b 3.2:864 
III/35e 2.2.1:705 
III/35e 2.2.1:706 
III/35e 2.2.1:707 
III/35a 3.2:691 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31137 C8H8ClO2PS 
234.64 
O 
P 
O 
S 
Cl 
3-Chloro-1,5-dihydro-
benzo[e][1,3,2]dioxaphosphepine 3-sulfide 
III/35a 3.2:692 
31138 C8H8ClP 
170.58 P Cl 
2-Chloro-2,3-dihydro-1H-isophosphindole III/35a 3.2:693 
31139 C8H8Cl2O2 
207.05 
90283-00-4 
H3C 
O 
O 
H3C 
Cl 
Cl 1,2-Dichloro-3,4-dimethoxy-benzene; 
1,2-Dimethoxy-3,4-dichloro-benzene 
III/35e 2.2.2:2680 
31140 C8H8Cl2O2 
207.05 
Cl 
CH3 
O 
O 
CH3 
Cl 
1,5-Dichloro-2,3-dimethoxy-benzene III/35e 2.2.2:2681 
31141 C8H8Cl2O2 
207.05 
Cl 
H3C O CH3 
Cl 
O 1,4-Dichloro-2,3-dimethoxy-benzene III/35e 2.2.2:2682 
31142 C8H8Cl2O2 
207.05 
Cl O 
CH3 
1,2-Dichloro-4,5-dimethoxy-benzene III/35e 2.2.2:2683 
Cl O 
CH3 
31143 C8H8Cl2O2 
207.05 
O 
Cl 
H3C 
O 
CH3 
Cl 2,3-Dichloro-1,4-dimethoxy-benzene III/35e 2.2.2:2684 
31144 C8H8Cl2O2 
207.05 
O 
Cl 
H3C 
Cl 
O 
CH3 
1,3-Dichloro-2,5-dimethoxy-benzene III/35e 2.2.2:2686 
31145 C8H8Cl2Pd 
281.45 
Cyclooctatetraene-palladiumdichloride III/35c4 2.2:724 
Cl 
Pd 
Cl 
31146 C8H8FI 
250.05 Ph 
F 
I 
Ph + 
F 
I ((R,S)-2-Fluoro-2-iodo-ethyl)-benzene III/35b 2.2:770 
31147 C8H8FN 
137.15 
F 
N 
1-(4-Fluoro-phenyl)-aziridine III/35b 3.2:866 
31148 C8H8FNO 
153.15 
701-49-5 NH 
O 
F 
CH3 
Benzamide, 4-fluoro-N-methyl-; 
Benzamide, p-fluoro-N-methyl-; 
4-Fluoro-N-methyl-benzamide; 
4-Fluoro-N-methyl-benzamide 
III/35e 2.2.1:708 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31149 C8H8FNO 
153.15 
351-83-7 
NH CH3 
F 
O 
N-(4-Fluoro-phenyl)-acetamide; 
N-(4-fluorophenyl)acetamide 
III/35b 3.2:867 
31150 C8H8FNO2 
169.15 
O 
C2H5 
O 
FN 
2-Fluoro-nicotinic acid ethyl ester III/35c2 2.2:393 
31151 C8H8F2 
142.15 
Ph 
F 
F 
(1,1-Difluoro-ethyl)-benzene III/35b 2.2:544 
31152 C8H8F2 
142.15 
F 
F 
+ F 
F (1R*,4R*)-5-Difluoromethylene-
bicyclo[2.2.1]hept-2-ene 
III/35b 2.2:543 
31153 C8H8F2O 
158.15 
1583-83-1 
O F 
FH3C 
Anisole, a,a-difluoro-p-methyl-; 
Benzene, 1-(difluoromethoxy)-4-methyl-; 
1-Difluoromethoxy-4-methyl-benzene; 
Difluoromethyl 4-methylphenyl ether 
III/35b 2.2:545 
31154 C8H8F2OS 
190.21 
S F 1-Difluoromethylsulfanyl-4-methoxy-
benzene 
III/35b 2.2:546 
FH3C 
O 
31155 C8H8F2O2 
174.15 
O F 1-Difluoromethoxy-4-methoxy-benzene III/35b 2.2:547 
FH3C 
O 
31156 C8H8F2O3S 
222.21 S(2+) 
O(-)O(-) F 
H3C 
C8H8F2O3S III/35b 2.2:548 
O F 
31157 C8H8F3NO3S 
255.21 
O 
H5C2 
O 
CH3 
S 
F3C 
N 
O 
2-Methylsulfanyl-5-trifluoromethyl-oxazole-
4-carboxylic acid ethyl ester 
III/35c2 2.2:394 
31158 C8H8F3NO3S 
255.21 
H3C 
S 
N 
O O 
CF3 
OH 
N-Hydroxy-4-methyl-N-trifluoromethyl-
benzenesulfonamide 
III/35b 2.2:549 
31159 C8H8F5OP 
246.11 
Ph PH 
FA C8H8F5OP III/35b 2.2:550 
O 
FA CF3 
31160 C8H8F6N2O 
262.15 
CF3 
O 
C2H5 1-((3R,4S)-3,4-Bis-trifluoromethyl-4,5-
dihydro-3H-pyrazol-3-yl)-propan-1-one 
III/35b 2.2:551 
F3C 
N N 
31161 C8H8F6N2O 
262.15 
N N 
CF3 
F3C 
O 
C2H5 1-((3S,4S)-3,4-Bis-trifluoromethyl-4,5-
dihydro-3H-pyrazol-3-yl)-propan-1-one 
III/35b 2.2:552 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31162 C8H8F6O 
234.14 
F3C 
CF3 
H5C2 
O 1-((1S,2S)-1,2-Bis-trifluoromethyl-
cyclopropyl)-propan-1-one 
III/35b 2.2:553 
31163 C8H8F6O 
234.14 O CF3 
F3C 
H5C2 
1-((1R,2S)-1,2-Bis-trifluoromethyl-
cyclopropyl)-propan-1-one 
III/35b 2.2:554 
31164 C8H8F6O 
234.14 
O 
F3C CF3 
H5C2 
F3C 
H5C2 
+ 
O 
CF3 (R,S)-5-Ethyl-3,4-bis-trifluoromethyl-2,3-
dihydro-furan 
III/35b 2.2:555; 
III/35c2 2.2:395 
31165 C8H8F12O4Si 
424.21 O 
F3C 
O 
CF3 tetrakis(2,2,2-trifluoroethoxy)silane III/35e 2.2.2:2687 
Si 
OF3C O CF3 
31166 C8H8F13O2P 
414.1 
O 
CF3 
CF3 
CF3 
F3C 
CH3 
C8H8F13O2P III/35a 3.2:694 
PO 
CH3 
F 
31167 C8H8FeO2 
191.99 (-) 
Cyclopentadienyl-methyl-dicarbonyl-iron III/35c4 2.2:725 
C OFe(+) 
CH3C 
O 
31168 C8H8I2Pt 
553.04 
Cyclooctatetraene-platinumdiiodide III/35c4 2.2:726 
I 
Pt 
I 
31169 C8H8NO2P 
181.13 NC PH 
O (4-Cyano-phenyl)-phosphinic acid methyl 
ester 
III/35e 2.2.4:3760 
CH3O 
31170 C8H8N2 
132.16 
NH 
CN 
H3C 
p-Tolyl-cyanamide III/35b 3.2:868 
31171 C8H8N2 
132.16 
NH2 1H-Indol-4-amine; 
1H-Indol-4-ylamine 
III/35c2 2.2:396 
5192-23-4 
NH 
31172 C8H8N2 
132.16 
CH3 3-Methyl-1H-pyrrolo[2,3-b]pyridine III/35c2 2.2:397 
NHN 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31173 C8H8N2O 
148.16 
4241-20-7 CN 
O 
NH 
3-Cyano-6-ethyl-2(1H)-pyridinone; 
6-Ethyl-2-oxo-1,2-dihydro-pyridine-3-
carbonitrile; 
III/35c2 2.2:400 
Nicotinonitrile, 6-ethyl-1,2-dihydro-2-oxo-; 
H5C2 
3-Pyridinecarbonitrile, 6-ethyl-1,2-dihydro-
2-oxo-
31174 C8H8N2O 
148.16 
72918-03-7 
CH3 
H3C 
O 
NC 
N 
2-Methoxy-6-methyl-nicotinonitrile III/35c2 2.2:399 
31175 C8H8N2O 
148.16 
CH3O 3-Methoxy-1H-indazole III/35b 3.2:869 
N 
NH 
31176 C8H8N2O 
148.16 
OH 1-Methyl-1H-indazol-3-ol III/35b 3.2:870 
N 
N 
CH3 
31177 C8H8N2O 
148.16 
CH3 2H-Indazole-2-hydroxy, 3-methyl-; 
3-Methyl-indazol-2-ol 
III/35b 3.2:871 
82979-91-7 
N 
N OH 
31178 C8H8N2O 
148.16 
N 1-Methoxy-1H-benzoimidazole III/35b 3.2:872 
N 
O CH3 
31179 C8H8N2OS 
180.23 
614-23-3 Ph NH 
O S 
NH2 
Benzoyl-thiourea III/35e 2.2.1:709 
31180 C8H8N2OS 
180.23 ON 
S 
N 
(R,S)-7-Furan-2-yl-6-thia-1,4-diaza-
bicyclo[3.2.0]hept-4-ene 
III/35c2 2.2:401 
+ 
ON 
S 
N 
31181 C8H8N2O2 
164.16 N 
CH3 
O2N 
C8H8N2O2 III/35b 3.2:874 
31182 C8H8N2O2 
164.16 N 
O2N 
1-(4-Nitro-phenyl)-aziridine III/35b 3.2:873 
31183 C8H8N2O2 
164.16 
6-Nitro-2,3-dihydro-1H-indole; 
6-Nitro-2,3-dihydro-1H-indole; 
III/35e 2.2.3:3501 
19727-83-4 6-nitroindoline 
NHO2N 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31184 C8H8N2O2 
164.16 
O2N 5-Nitro-2,3-dihydro-1H-indole; 
5-Nitro-2,3-dihydro-1H-indole; 
III/35e 2.2.3:3500 
32692-19-6 5-nitroindoline 
NH 
31185 C8H8N2O2 
164.16 
NH2O 
NH2 
ONH 
O 
+ 
(R,S)-2-Amino-4H-benzo[1,4]oxazin-3-one III/35c2 2.2:402 
ONH 
31186 C8H8N2O2S 
196.23 N(+)SPh 
N(-)O O Diazomethanesulfonylmethyl-benzene III/35e 2.2.5:4159 
31187 C8H8N2O3 
180.16 
C8 H8 N2 O3 III/35b 3.2:876 
31188 C8H8N2O3 
180.16 
NH2 
NO2 
1-(3-Amino-4-nitro-phenyl)-ethanone III/35b 3.2:878 
H3C 
O 
31189 C8H8N2O3 
180.16 
2585-23-1 NH 
O 
CH3 
O2N 
Benzamide, N-methyl-4-nitro-; 
Benzamide, N-methyl-p-nitro-; 
N-Methyl-4-nitro-benzamide; 
N-Methyl-4-nitro-benzamide 
III/35e 2.2.1:711; 
III/35e 2.2.3:3502 
31190 C8H8N2O4 
196.16 
1943-87-9 
NH O 
O 
CH3 
Carbamic acid, (4-nitrophenyl)-, methyl 
ester; 
methyl (4-nitrophenyl)carbamate; 
III/35e 2.2.1:712; 
III/35e 2.2.3:3505 
O2N Methyl-N-p-nitrophenylcarbamate; 
(4-Nitro-phenyl)-carbamic acid methyl ester 
31191 C8H8N2S 
164.23 
N 
SH 
1-Methyl-1H-benzoimidazole-2-thiol III/35b 3.2:879 
N 
CH3 
31192 C8H8N2S 
164.23 
7152-24-1 
NH 
N 
S 
CH3 1H-Benzimidazole, 2-(methylthio)-; 
2-(Methylmercapto)-benzimidazol; 
2-Methylsulfanyl-1H-benzoimidazole; 
2-(methylthio)benzimidazole 
III/35b 3.2:880 
31193 C8H8N3O 
162.17 
Ph 
O 
N(+) 
N 
NH2 
5-Amino-3-phenyl-[1,2,3]oxadiazol-3-ium III/35e 2.2.2:2688 
31194 C8H8N4 
160.18 Ph 
H2N 
N 
N 
NH 5-Phenyl-2H-[1,2,4]triazol-3-ylamine III/35c2 2.2:403 
31195 C8H8N4 
160.18 
NN 
Ph 
2-Methyl-5-phenyl-2H-tetrazole; 
2-methyl-5-phenyl-2H-tetrazole; 
III/35b 3.2:881 
20743-49-1 NN 2-methyl-5-phenyltetrazole 
H3C 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31196 C8H8N4O 
176.18 NH 
NC 
CH3N 
N(+) 
O(-) C8H8N4O III/35b 3.2:883 
31197 C8H8N4O 
176.18 
N 
N 
NN 
O 
CH3 1-(4-Methoxy-phenyl)-1H-tetrazole III/35b 3.2:882 
31198 C8H8NiO2 
194.84 (-) 
Cyclopentadienyl-acetyl-carbonyl-nickel III/35c4 2.2:727 
Ni(+) 
C 
H3C 
O 
O 
31199 C8H8O 
120.15 
H2C 
H2C 
O 
H2C 
H2C 
O+ 
(1S*,4R*)-5,6-Dimethylene-7-oxa-
bicyclo[2.2.1]hept-2-ene 
III/35e 2.2.2:2692 
31200 C8H8OS 
152.21 
934-87-2 
Ph 
S 
O 
CH3 Acetic acid, thio-, S-phenyl ester; 
Ethanethioic acid, S-phenyl ester; 
Thioacetic acid S-phenyl ester; 
Thioacetic acid S-phenyl ester 
III/35e 2.2.1:716 
31201 C8H8OS 
152.21 
5925-68-8 Ph S 
O 
CH3 
(S)-methyl thiobenzoate; 
Thiobenzoic acid S-methyl ester; 
Thiobenzoic acid S-methyl ester 
III/35e 2.2.1:717 
31202 C8H8OS 
152.21 
55065-27-5 S O S O+ 
9-Thia-bicyclo[4.2.1]nona-2,4,7-triene 9oxide; 
9-Thiabicyclo[4.2.1]nona-2,4,7-triene, 9oxide, 
syn-
III/35e 2.2.5:4161 
31203 C8H8OS 
152.21 
55065-28-6 SO SO+ 
9-Thia-bicyclo[4.2.1]nona-2,4,7-triene 9oxide; 
9-Thiabicyclo[4.2.1]nona-2,4,7-triene, 9oxide, 
anti-
III/35e 2.2.5:4160 
31204 C8H8OSe 
199.11 
Ph Se 
O 
CH3 
Selenobenzoic acid Se-methyl ester; 
Selenobenzoic acid Se-methyl ester 
III/35e 2.2.1:718 
31205 C8H8OSe 
199.11 O 
Se 
CH3 
2-Methylselanyl-benzaldehyde III/35e 2.2.1:719 
31206 C8H8O2 
136.15 
H3C CH3 2,3-dimethyl-(1,4)benzoquinone; 
2,3-Dimethyl-[1,4]benzoquinone 
III/35e 2.2.1:721 
526-86-3 
OO 
31207 C8H8O2 
136.15 
527-61-7 
OO 
H3C 2,5-Cyclohexadiene-1,4-dione, 2,6-
dimethyl-; 
2,6-Dimethyl-[1,4]benzoquinone 
III/35e 2.2.1:726 
H3C 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31208 C8H8O2 
136.15 H2C 
O 
O 
3-Allyl-pyran-2-one III/35c2 2.2:404 
31209 C8H8O2 
136.15 
H2C 
H2C 
O O 
6,7-Dimethylene-3,8-dioxa-
tricyclo[3.2.1.02,4]octane 
III/35e 2.2.2:2693 
31210 C8H8O2S 
168.21 
O 
CH3 
2-Hydroxy-thiobenzoic acid S-methyl ester; 
2-Hydroxy-thiobenzoic acid S-methyl ester 
III/35e 2.2.1:734 
S 
OH 
31211 C8H8O3 
152.15 
621-59-0 
O 
H3C 
O 
HO p-Anisaldehyde, 3-hydroxy-; 
Benzaldehyde, 3-hydroxy-4-methoxy-; 
3-Hydroxy-4-methoxy-benzaldehyde; 
Isovanillin 
III/35e 2.2.1:741 
31212 C8H8O3 
152.15 
OOH 1-(2,6-Dihydroxy-phenyl)-ethanone III/35e 2.2.1:743 
CH3 
OH 
31213 C8H8O3 
152.15 
O (3aR,7aS)-3a,4,7,7a-Tetrahydro-
isobenzofuran-1,3-dione 
III/35e 2.2.1:745 
O 
O 
31214 C8H8O3 
152.15 
O 4,5,6,7-Tetrahydro-isobenzofuran-1,3-
dione; 
III/35e 2.2.1:744 
2426-02-0 
O 
3,4,5,6-tetrahydrophthalic anhydride 
O 
31215 C8H8O3 
152.15 
O 
O 
O 
CH3 4-Methoxy-benzo[1,3]dioxole III/35e 2.2.2:2694 
31216 C8H8O3S 
184.21 
O 
H3C 
COOH 
4-(2-Oxo-propyl)-thiophene-3-carboxylic 
acid 
III/35c2 2.2:405 
S 
31217 C8H8O3S 
184.21 
S 
O 
H3C 
O 
O 
CH3 
5-Acetyl-thiophene-2-carboxylic acid methyl 
ester 
III/35e 2.2.1:746 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31218 C8H8O3S 
184.21 
Ph 
O 
S 
O 
O 
Ph 
O 
S 
O 
O 
+ 
(R,S)-4-Phenyl-[1,3,2]dioxathiolane 2-oxide III/35e 2.2.5:4162 
31219 C8H8O4 
168.15 
OOH 
HO 
1-(2,3,4-Trihydroxy-phenyl)-ethanone III/35e 2.2.1:747 
CH3 
HO 
31220 C8H8O4 
168.15 
OOH Acetophenone, 2',4',6'-trihydroxy-; 
Ethanone, 1-(2,4,6-trihydroxyphenyl)-; 
III/35e 2.2.1:748 
480-66-0 CH3 
Phloroacetophenone; 
1-(2,4,6-Trihydroxy-phenyl)-ethanone 
OHHO 
31221 C8H8O4S 
200.21 
CH3 3-Acetoxy-thiophene-2-carboxylic acid 
methyl ester 
III/35c2 2.2:406 
O 
O 
O 
CH3O 
S 
31222 C8H8O4S 
200.21 
Ph O 
S 
O 
O 
O 
(R)-4-Phenyl-[1,3,2]dioxathiolane 2,2-
dioxide 
III/35e 2.2.5:4163 
31223 C8H8O5 
184.15 
4282-32-0 O 
O 
O 
CH3 
O 
O 
H3C 
Dimethyl 2,5-furandicarboxylate; 
Furan-2,5-dicarboxylic acid dimethyl ester; 
2,5-Furandicarboxylic acid, dimethyl ester 
III/35e 2.2.2:2695 
31224 C8H9AsO2S 
244.14 As 
O 
O 
S 
Ph 2-Phenylsulfanyl-[1,3,2]dioxarsolane III/35c4 2.2:728 
31225 C8H9AsO3 
228.08 As 
O 
O 
O 
Ph 2-Phenoxy-[1,3,2]dioxarsolane III/35c4 2.2:729 
31226 C8H9BBrFeNO4 
329.72 
Fe 
H2C B(-) 
Br 
N(+) 
CH3 
CH3 
CO C O 
C8H9BBrFeNO4 III/35a 2.2:751 
C C 
O O 
31227 C8H9BBr2 
275.78 Br 
H3C 3,5-Dimethylphenyl-dibromoborane III/35a 2.2:752 
B 
Br 
H3C 
31228 C8H9BOS 
164.03 Ph 
O 
B 
S C8H9BOS III/35a 2.2:753 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31229 C8H9BS2 
180.1 
S 
B 
S 
Ph 
C8H9BS2 III/35a 2.2:754 
31230 C8H9ClFNO3 
221.61 O 
CH3 3-Chloro-5-fluoro-2,4,6-trimethoxy-pyridine III/35b 3.2:884 
ClF 
N 
CH3 
OO 
H3C 
31231 C8H9ClF4O2 
248.6 
C2H5O 
OF3C 
F 
Cl 
H3C C2H5O 
OF3C 
F 
Cl 
H3C 
+ 
Propionic acid 1-((R,S)-1-chloro-1,2,2,2-
tetrafluoro-ethyl)-propenyl ester 
III/35b 2.2:556 
31232 C8H9ClN2O2 
200.62 
CH3O 
2-Allyl-4-chloro-5-methoxy-2H-pyridazin-3-
one 
III/35c2 2.2:407 
Cl 
N 
O N 
CH2 
31233 C8H9ClO2 
172.61 
CH3 
O 
1-Chloro-2,3-dimethoxy-benzene; 
1,2-Dimethoxy-3-chloro-benzene 
III/35e 2.2.2:2696 
90282-99-8 O 
CH3 
Cl 
31234 C8H9ClO2 
172.61 
2100-42-7 
CH3 
H3C 
O 
OCl Benzene, 2-chloro-1,4-dimethoxy-; 
2-Chloro-1,4-dimethoxy-benzene; 
1-Chloro-2,5-dimethoxybenzene; 
2,5-Dimethoxychlorobenzene 
III/35e 2.2.2:2698 
31235 C8H9ClO2S 
204.67 
O 
C2H5O 
SCl 
4-Chloro-benzenesulfinic acid ethyl ester III/35e 2.2.5:4164 
31236 C8H9Cl2OPS 
255.1 
O 
H5C2 
P 
Cl 
S 
Cl C8H9Cl2OPS III/35a 3.2:695 
31237 C8H9CoO3 
212.09 
(delocalized system) 
H2C(-) 
C8H9CoO3 III/35c4 2.2:730 
C 
O C O 
Co(+) 
C 
O 
31238 C8H9CoO3 
212.09 
(delocalized system) 
H2C(-) 
C2H5 
C8H9CoO3 III/35c4 2.2:731 
C 
O C O 
Co(+) 
C 
O 
31239 C8H9CoO3 
212.09 
(delocalized system) 
CH(-) 
CH3H3C 
C8H9CoO3 III/35c4 2.2:732 
C 
O C O 
Co(+) 
C 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31240 C8H9CoO3 
212.09 
(delocalized system) 
CH(-) 
H3C 
C8H9CoO3 III/35c4 2.2:733 
C 
O C O 
Co(+) 
C 
CH3 
O 
31241 C8H9F 
124.16 
458-87-7 
Ph 
F Benzene, (2-fluoroethyl)-; 
(2-Fluoro-ethyl)-benzene 
III/35b 2.2:558 
31242 C8H9F 
124.16 
7100-97-2 Ph CH3 
F 
Ph CH3 
F 
+ 
1-fluoro-1-phenylethane; 
((R,S)-1-Fluoro-ethyl)-benzene 
III/35b 2.2:557 
31243 C8H9F2NO3 
205.16 O 
CH3 3,5-Difluoro-2,4,6-trimethoxy-pyridine III/35b 3.2:885 
FF 
N 
CH3 
OO 
H3C 
31244 C8H9F2OP 
190.13 
F 
P 
C8H9F2OP III/35a 3.2:696 
O F 
H3C 
31245 C8H9F2O2P 
206.13 
P 
O F 
C2H5 
2-Ethyl-2,2-difluoro-1,3-dioxa-2.5-phospha-
indan 
III/35a 3.2:697 
O 
F 
31246 C8H9F3N2 
190.17 
CF3 3-Trifluoromethyl-4,5,6,7-tetrahydro-1H-
indazole 
III/35b 2.2:562; 
III/35c2 2.2:408 
N 
NH 
31247 C8H9F4P 
212.12 P 
F 
F 
F 
FH3C 
CH3 
C8H9F4P III/35a 3.2:698 
31248 C8H9F6NO2 
265.15 
N 
H3C O 
CF3 
OHF3C 
N 
H3C O 
CF3 
OHF3C 
+ 
(R,S)-1-Methyl-3-(2,2,2-trifluoro-1-hydroxy-
1-trifluoromethyl-ethyl)-pyrrolidin-2-one 
III/35b 2.2:564 
31249 C8H9F6NS2 
297.28 
S 
S 
N 
F3C 
F3C 
5-tert-Butyl-3,3-bis-trifluoromethyl-3H-
[1,2,4]dithiazole 
III/35b 2.2:565 
31250 C8H9F6NS2 
297.28 
N 
S 
S 
F3C 
F3C 
C4H9 
2-Butyl-4,5-bis-trifluoromethyl-
[1,3,2]dithiazole 
III/35b 2.2:566 
31251 C8H9F7O 
254.15 
CF3 
H9C4 
O 
CF3F 1,1,1,2-Tetrafluoro-2-trifluoromethyl-
heptan-3-one 
III/35b 2.2:567 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31252 C8H9F7O 
254.15 
CF3 
O 
CF3F 1,1,1,2-Tetrafluoro-4,4-dimethyl-2-
trifluoromethyl-pentan-3-one 
III/35b 2.2:568 
31253 C8H9HgNO2 
351.75 H3C 
O 
O Hg NH2 
C8H9HgNO2 III/35c4 2.2:734 
31254 C8H9N 
119.16 
696-18-4 
N 
Ph 
Aziridine, 1-phenyl-; 
1-Phenyl-aziridine; 
1-phenylaziridine 
III/35b 3.2:886 
31255 C8H9N 
119.16 
NH 
Ph 
(S)-2-Phenyl-aziridine III/35b 3.2:888 
31256 C8H9N 
119.16 
N CH3 
((E)-2-Propenyl)-pyridine III/35c2 2.2:409 
31257 C8H9N 
119.16 
6,7-Dihydro-5H-[1]pyrindine; 
6,7-dihydro-5H-cyclopenta[b]pyridine; 
III/35b 3.2:887 
533-37-9 6,7-dihydro-5H-cyclopenta(b)pyridine; 
N 5H-1-Pyrindine, 6,7-dihydro- 
31258 C8H9N 
119.16 
NH 
4,7-Dihydro-1H-indole III/35c2 2.2:410 
31259 C8H9NO 
135.16 
CH3NH 
((E)-4-Propenyl)-1H-pyrrole-2-
carbaldehyde 
III/35c2 2.2:411 
O 
31260 C8H9NO 
135.16 
H3C 
N 
OH 
C8H9NO III/35b 3.2:891 
31261 C8H9NO 
135.16 
6343-54-0 
Ph NH O 
N-Benzyl-formamide; 
Benzylformamide; 
Formamide, N-benzyl-; 
Formamide, N-(phenylmethyl)- 
III/35b 3.2:897 
31262 C8H9NO 
135.16 
619-55-6 
H3C 
NH2 
O Benzamide, 4-methyl-; 
4-Methylbenzamide; 
p-Methylbenzamide; 
p-Toluamide 
III/35b 3.2:899; 
III/35e 2.2.1:755 
31263 C8H9NO 
135.16 
O Benzamide, 2-methyl-; 
2-Methylbenzamide; 
III/35e 2.2.1:754 
527-85-5 NH2 
o-toluamide 
CH3 
31264 C8H9NO 
135.16 
H2N 
CH2O 4-Vinyloxy-phenylamine III/35e 2.2.2:2699 
31265 C8H9NO 
135.16 N 
CH3 
OH 
2-[Methyliminomethyl]-phenol III/35e 2.2.2:2700 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31266 C8H9NO 
135.16 N 
4-Methyl-benzaldehyde oxime III/35e 2.2.3:3506 
OH 
H3C 
31267 C8H9NO 
135.16 
99-03-6 CH3 
O 
H2N 
1-(3-Amino-phenyl)-ethanone; 
Ethanone, 1-(3-aminophenyl)- 
III/35e 2.2.1:752 
31268 C8H9NO 
135.16 N 
CH3 
O 
Ph Ph+ N 
CH3 
O C8H9NO III/35b 3.2:898 
31269 C8H9NO 
135.16 
N 
O 
CH3 
CH2 
3-Methyl-1-vinyl-1H-pyridin-2-one; 
3-Methyl-1-vinyl-1H-pyridin-2-one 
III/35e 2.2.1:756 
31270 C8H9NO 
135.16 
N 
O 
CH2 
H3C 4-Methyl-1-vinyl-1H-pyridin-2-one; 
4-Methyl-1-vinyl-1H-pyridin-2-one 
III/35e 2.2.1:757 
31271 C8H9NO 
135.16 
39565-50-9 
O 
N 
CH2 
3-Vinyloxymethyl-pyridine III/35e 2.2.2:2701 
31272 C8H9NO 
135.16 
39565-52-1 
O 
N 
CH2 
4-Vinyloxymethyl-pyridine III/35e 2.2.2:2702 
31273 C8H9NO 
135.16 
124695-18-7 N 
O 
CH2 
H3C 
5-Methyl-1-vinyl-1H-pyridin-2-one; 
5-Methyl-1-vinyl-1H-pyridin-2-one 
III/35e 2.2.1:758 
31274 C8H9NO 
135.16 
124695-19-8 N 
O 
CH2 
CH3 
6-Methyl-1-vinyl-1H-pyridin-2-one; 
6-Methyl-1-vinyl-1H-pyridin-2-one 
III/35e 2.2.1:759 
31275 C8H9NOS 
167.23 
S p-Anisamide, thio-; 
Benzenecarbothioamide, 4-methoxy-; 
III/35b 3.2:900 
2362-64-3 NH2 
4-Methoxy-thiobenzamide; 
4-Methoxybenzenecarbothioamide 
O 
H3C 
31276 C8H9NOS 
167.23 
13509-41-6 Ph 
NH 
S 
CH3 
O 
Phenyl-thiocarbamic acid methyl ester; 
phenyl-thiocarbamic acid O-methyl ester 
III/35e 2.2.1:760 
31277 C8H9NOS 
167.23 
ON 
CH3 C8H9NOS III/35e 2.2.5:4165 
S 
CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31278 C8H9NO2 
151.16 
2446-50-6 Ph 
CH3 
OH 
N 
O N-Hydroxy-N-methyl-benzamide; 
N-Hydroxy-N-methyl-benzamide; 
N-methyl-benzohydroxamic acid 
III/35e 2.2.1:764 
31279 C8H9NO2 
151.16 
1862-88-0 
OH 
CH3 
NH 
O 2-Hydroxy-N-methyl-benzamide; 
2-Hydroxy-N-methyl-benzamide; 
N-methyl-salicylamide 
III/35e 2.2.1:766 
31280 C8H9NO2 
151.16 
2446-51-7 Ph CH3 
O 
NH 
O N-Methoxy-benzamide; 
N-Methoxy-benzamide 
III/35e 2.2.1:765 
31281 C8H9NO2 
151.16 
3424-93-9 
O 
NH2 
Benzamide, 4-methoxy-; 
4-Methoxy-benzamide 
III/35e 2.2.1:770; 
IV/7a 1.1:9 
H3C 
O 
31282 C8H9NO2 
151.16 
3717-21-3 
O 
H3C 
N 
OH 
4-Methoxy-benzaldehyde oxime; 
p-methoxybenzaldehyde oxime 
III/35b 3.2:901; 
III/35e 2.2.3:3511 
31283 C8H9NO2 
151.16 
4518-10-9 
O 
CH3O 
H2N 
3-Amino-benzoic acid methyl ester; 
Benzoic acid, 3-amino-, methyl ester 
III/35e 2.2.1:768 
31284 C8H9NO2 
151.16 
7214-60-0 NO 
CH3 
Ph O Ph+ 
NO 
CH3 
O 
1-phenylethyl nitrite IV/6 2.1.3:1067 
31285 C8H9NO2 
151.16 
CH3 
O 
O 
H3C N 
2-Methoxy-6-methyl-pyridine-3-
carbaldehyde 
III/35c2 2.2:412 
31286 C8H9NO2 
151.16 
O 
CH3 
O 
N 
Pyridin-4-yl-acetic acid methyl ester III/35c2 2.2:415 
31287 C8H9NO2 
151.16 
29681-45-6 
O 
CH3 
O 
H3C 
N 
Methyl 5-methylnicotinate; 
5-Methyl-nicotinic acid methyl ester 
III/35c2 2.2:416 
31288 C8H9NO2 
151.16 
HOOC 
N 
6,7-Dihydro-5H-pyrrolizine-1-carboxylic 
acid 
III/35c2 2.2:414 
31289 C8H9NO2 
151.16 
OH3C 3,5-Dimethyl-5,6-dihydro-furo[3,4-c]pyrrol-
4-one 
III/35c2 2.2:413 
CH3O N 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31290 C8H9NO3 
167.16 
63435-16-5 
H2N 
CH3O 
HO 
O 4-Amino-3-hydroxy-benzoic acid methyl 
ester; 
Methyl 4-amino-3-hydroxybenzoate 
III/35b 3.2:902 
31291 C8H9NO3 
167.16 
CH3 
O 
CH3 
O 
ON 
2-Methoxy-isonicotinic acid methyl ester III/35c2 2.2:417 
31292 C8H9NO3 
167.16 
18342-97-7 
N 
O 
O 
C2H5 
OH 3-Hydroxy-isonicotinic acid ethyl ester III/35e 2.2.1:775 
31293 C8H9NO3 
167.16 
73406-50-5 
N 
O 
O 
C2H5 
OH 3-Hydroxy-pyridine-2-carboxylic acid ethyl 
ester 
III/35e 2.2.1:774 
31294 C8H9NO4S 
215.23 
59777-67-2 CH3S 
OO 
H2N 
O 
O 
Benzoic acid, 3-(aminosulfonyl)-, methyl 
ester; 
Methyl 3-sulfamoylbenzoate; 
3-Sulfamoyl-benzoic acid methyl ester 
III/35e 2.2.1:776; 
III/35e 2.2.5:4166 
31295 C8H9NO4S 
215.23 CH3 
S 
OO 
H2N 
O 
O 
4-Sulfamoyl-benzoic acid methyl ester III/35e 2.2.1:777; 
III/35e 2.2.5:4167 
31296 C8H9NO4S 
215.23 C2H5 
O 
SO2N 
O 3-Nitro-benzenesulfinic acid ethyl ester III/35e 2.2.5:4168 
31297 C8H9NO4S 
215.23 
13165-85-0 C2H5 
O 
S 
O 
O2N 
ethyl p-nitrobenzenesulphinate; 
4-Nitro-benzenesulfinic acid ethyl ester 
III/35e 2.2.5:4169 
31298 C8H9NS 
151.23 
637-53-6 
Ph 
CH3NH 
S 
Ethanethioamide, N-phenyl-; 
N-Phenyl-thioacetamide; 
Thioacetanilid; 
thioacetanilide 
III/35b 3.2:903 
31299 C8H9NS 
151.23 
H2N S 
2,3-Dihydro-benzo[b]thiophen-6-ylamine III/35c2 2.2:418 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31300 C8H9NS2 
183.29 
CH3 
S 
S 
N 
4-Methylsulfanyl-6,7-dihydro-thieno[3,2-
c]pyridine 
III/35c2 2.2:419 
31301 C8H9N2 
133.17 
NH(+) 3-Methyl-3H-benzoimidazol-1-ium III/35b 3.2:904 
N 
CH3 
31302 C8H9N2 
133.17 N CH3 
2-Methyl-2H-indazol-1-ium III/35b 3.2:905 
NH(+) 
31303 C8H9N2 
133.17 NH 
1-Methyl-2H-indazol-1-ium III/35b 3.2:906 
N(+) 
CH3 
31304 C8H9N2O 
149.17 
H5C2 
O CNNH(+) 
6-Ethoxy-2-carbonitrile-pyridinium III/35c2 2.2:398 
31305 C8H9N2PS3 
260.34 
CH3S 
S 
S 
NHP 
NH + 
CH3S 
S 
S 
NHP 
NH 
(R,S)-2-Methylsulfanyl-2-thioxo-2,3-
dihydro-1H-2.5-
benzo[1,3,2]diazaphosphinine-4-thione 
III/35c2 2.2:420 
31306 C8H9N3O 
163.18 
H3C 
CH3 
O 
N 
N NH 
1,5-Dimethyl-1,4-dihydro-imidazo[4,5-
b]pyridin-7-one 
III/35c2 2.2:421 
31307 C8H9N3O2 
179.18 
NO2 1-Methyl-5-nitro-2,3-dihydro-1H-pyrrolo[2,3-
b]pyridine 
III/35c2 2.2:422 
N N 
H3C 
31308 C8H9N3O2S 
211.24 S 
N N(-) 
2-Diazo-1-(2-thioxo-pyrrolidin-1-yl)-butane-
1,3-dione 
III/35c2 2.2:423 
N(+) 
O 
O 
CH3 
31309 C8H9N3O3 
195.18 O 
N N(-) 
2-Diazo-1-(2-oxo-pyrrolidin-1-yl)-butane-
1,3-dione 
III/35c2 2.2:424 
N(+) 
O 
O 
CH3 
31310 C8H9N3O4 
211.18 
1670-17-3 CH3 
N 
CH3 N,N-dimethyl-2,4-dinitro-aniline; 
(2,4-Dinitro-phenyl)-dimethyl-amine; 
N-(2,4-dinitrophenyl)dimethylamine 
III/35e 2.2.3:3513 
NO2O2N 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31311 C8H9N3O4 
211.18 
N O 
CH3 C8H9N3O4 III/35e 2.2.3:3514 
N 
NO2O 
H3C 
31312 C8H9N3O4 
211.18 
NH O 
C2H5 
(2-Nitro-pyridin-3-yl)-carbamic acid ethyl 
ester 
III/35e 2.2.3:3515 
55304-91-1 O 
NO2N 
31313 C8H9N3O5 
227.17 
C3H7O 
NO2O2N 
N 
3,5-Dinitro-2-propoxy-pyridine III/35c2 2.2:425 
31314 C8H9N5 
175.19 
N 
N NH 
NH2 
NH 
Ph 
N3-Phenyl-1H-[1,2,4]triazole-3,5-diamine III/35b 3.2:907 
31315 C8H9O2P 
168.13 Ph 
PH 
CH3 
O 
O 
C8H9O2P III/35a 3.2:699 
31316 C8H9O8PW 
447.97 
W 
C 
O P 
O 
C 
O 
C 
O 
C 
C 
O 
CH3 
O 
CH3 
O CH3 
C8H9O8PW III/35e 2.2.7:4952 
O 
31317 C8H9P 
136.13 
90006-08-9 
Ph 
PH CH2 Phenyl-vinyl-phosphane; 
phenylvinylphosphine 
III/35a 3.2:700 
31318 C8H10BBr3 
356.69 
Br 
B 
Br C8H10BBr3 III/35a 2.2:755 
* * 
Br 
31319 C8H10BCl2N 
201.89 B 
Cl C8H10BCl2N III/35c4 2.2:735 
Ph N Cl 
CH3 
31320 C8H10BCoO5 
255.91 
OO C 
O C8H10BCoO5 III/35a 2.2:756 
C 
Co 
C 
BH2 
O C 
O 
31321 C8H10BNO2 
162.98 
O 
B 
O 
N 
CH3 
CH3 
C8H10BNO2 III/35a 2.2:757 
31322 C8H10BNS 
163.05 
S 
CH3 
C8H10BNS III/35a 2.2:758 
N 
BH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31323 C8H10B2Cl6O5 
420.5 
(mixture of isomers (open chain)) 
CCl3 
C8H10B2Cl6O5 III/35a 2.2:759 
O 
C(+) 
O 
B(-) 
O 
C(+)O 
B(-)O 
CCl3 
C2H5H5C2 
31324 C8H10B2F4N4 
259.81 
(delocalized system) 
N(+)N(+) 
B(-) 
F FH3C 
C8H10B2F4N4 III/35a 2.2:760 
NN 
B(-) 
F F CH3 
31325 C8H10B2S 
159.85 B 
CH3 C8H10B2S III/35a 2.2:761 
S 
B 
CH3 
31326 C8H10BrCo 
245.0 
(-) 
(delocalized system) 
Co(3+) 
Br(-) 
CH2(-) 
CH2 
Cyclopentadienyl-allyl-bromo-cobalt III/35c4 2.2:736 
31327 C8H10BrN 
200.08 
586-77-6 
Br 
CH3 
N 
CH3 Benzenamine, 4-bromo-N,N-dimethyl-; 
(4-Bromo-phenyl)-dimethyl-amine 
III/35b 3.2:908 
31328 C8H10BrN 
200.08 
24596-19-8 
Br 
NH2 
CH3 
CH3 4-Bromo-2,6-dimethyl-phenylamine; 
4-bromo-2,6-xylidine 
III/35b 3.2:909 
31329 C8H10BrNO 
216.07 Br N(+) 
C8H10BrNO III/35e 2.2.3:3516 
O(-) 
31330 C8H10BrNO 
216.07 
O 6-(3-Bromo-propyl)-1H-pyridin-2-one III/35c2 2.2:426 
NH 
Br 
31331 C8H10BrNOS 
248.14 S 
O 
N 
CH3 
4-Bromo-benzenesulfinic acid 
dimethylamide 
III/35b 3.2:910 
Br 
CH3 
31332 C8H10BrNS 
232.14 
CH3SBr N 
CH3 
2-Bromo-6-isopropylsulfanyl-pyridine III/35c2 2.2:427 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31333 C8H10ClN 
155.62 
698-69-1 
Cl 
CH3 
N 
CH3 Benzenamine, 4-chloro-N,N-dimethyl-; 
(4-Chloro-phenyl)-dimethyl-amine 
III/35b 3.2:911 
31334 C8H10ClN 
155.62 
24596-18-7 
Cl 
NH2 
CH3 
CH3 Benzenamine, 4-chloro-2,6-dimethyl-; 
4-Chloro-2,6-dimethyl-phenylamine 
III/35b 3.2:912 
31335 C8H10ClNOS 
203.69 
O 
S 
C8H10ClNOS III/35b 3.2:913 
Ph N Cl 
CH3 
31336 C8H10ClNO2 
187.62 O 
NH CH 
O 
Cl (3R,4R)-3-Chloro-4-(1,1-dimethyl-prop-2-
ynyloxy)-azetidin-2-one 
III/35c2 2.2:428 
31337 C8H10ClNO2 
187.62 
O 2-tert-Butyl-5-chloro-oxazole-4-
carbaldehyde 
III/35c2 2.2:429 
N 
Cl 
O 
31338 C8H10ClNO2S 
219.69 
7463-22-1 
S 
N 
O 
CH3 
O 
CH3Cl 
4-Chloro-N,N-dimethyl-
benzenesulfonamide; 
p-chloro N,N-dimethylbenzenesulfonamide 
III/35b 3.2:914 
31339 C8H10ClNS 
187.69 Ph N 
CH3 
S 
Cl 
C8H10ClNS III/35b 3.2:915 
31340 C8H10ClN3 
183.64 N(+) 
N 
Cl(-) 
4-Dimethylamino-benzenediazonium 
chloride 
III/35b 3.2:916 
H3C 
N 
CH3 
31341 C8H10ClO2P 
204.59 
38766-20-0 
Cl PH 
O 
C2H5O 
(4-Chloro-phenyl)-phosphinic acid ethyl 
ester; 
Ethyl 4-chlorophenylphosphinate 
III/35e 2.2.4:3761 
31342 C8H10Cl2NP 
222.05 P 
Cl C8H10Cl2NP III/35b 3.2:917 
Ph N Cl 
CH3 
31343 C8H10Cl2Te 
304.67 Ph 
Te C2H5 
Cl Phenyl-ethyl-telluriumdichloride III/35c4 2.2:737 
Cl 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31344 C8H10CoI 
292.0 
(-) 
(delocalized system) 
Co(3+) 
I(-) 
CH2(-) 
CH2 
Cyclopentadienyl-allyl-iodo-cobalt III/35c4 2.2:738 
31345 C8H10FN 
139.17 
403-46-3 
F 
CH3 
N 
CH3 Benzenamine, 4-fluoro-N,N-dimethyl-; 
4-fluoro-N,N-dimethyl-aniline; 
p-Fluoro-N,N-dimethylaniline; 
(4-Fluoro-phenyl)-dimethyl-amine 
III/35b 3.2:918 
31346 C8H10FN 
139.17 
CH3 4-Fluoro-2,6-dimethyl-phenylamine III/35b 3.2:919 
NH2 
F CH3 
31347 C8H10FN 
139.17 
CH3 2-Fluoromethyl-4,6-dimethyl-pyridine III/35b 2.2:569 
F 
NH3C 
31348 C8H10FNO2S 
203.23 S CH3 
NH 
OO 
FH3C 
2-Fluoro-4,N-dimethyl-benzenesulfonamide III/35b 2.2:570 
31349 C8H10FOP 
172.14 
Ph 
P 
C2H5 
F O C8H10FOP III/35a 3.2:701 
31350 C8H10FOPS 
204.2 
703-07-1 Ph 
P C2H5O 
F S Phosphonofluoridothioic acid, phenyl-, O-
ethyl ester 
III/35a 3.2:702 
31351 C8H10FOPS2 
236.27 Ph 
S O 
P C2H5 
S F C8H10FOPS2 III/35a 3.2:703 
31352 C8H10FO2P 
188.14 
P 
O F 
CH3 
2-Fluoro-2,2-dimethyl-1,3-dioxa-2.5-
phospha-indan 
III/35a 3.2:704 
O 
CH3 
31353 C8H10F2NP 
189.14 
N 
C2H5 
F 
C8H10F2NP III/35a 3.2:705 
Ph P 
F 
31354 C8H10F2O 
160.16 
F 
F 
O 
Cyclohexylidene-fluoro-acetyl fluoride III/35b 2.2:572 
31355 C8H10F2O 
160.16 
O 
F 
O 
F 
(R,S)-2-(2,2-Difluoro-vinyl)-cyclohexanone III/35b 2.2:571 
+ 
F F 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31356 C8H10F2Te 
271.76 Ph 
Te C2H5 
F Phenyl-ethyl-telluriumdifluoride III/35c4 2.2:739 
F 
31357 C8H10F3NO 
193.17 N 
O 
CF3 (Z)-1,1,1-Trifluoro-4-pyrrolidin-1-yl-but-3-
en-2-one 
III/35e 2.2.1:778 
31358 C8H10F3NO2 
209.17 C2H5O 
O 
NC 
(R,S)-4-Cyano-2-trifluoromethyl-butyric acid 
ethyl ester 
III/35b 2.2:574 
CF3 
+ 
C2H5O 
O 
NC 
CF3 
31359 C8H10F3N3O 
221.18 HN 
N 
NH CH3 
O 
F3C 
N-[2-(2-Trifluoromethyl-1H-imidazol-4-yl)-
ethyl]-acetamide 
III/35b 2.2:575; 
III/35c2 2.2:430 
31360 C8H10F4NP 
227.14 P 
F 
F 
F C8H10F4NP III/35a 3.2:706 
Ph N 
F 
CH3 
31361 C8H10F4N2 
210.17 
N 
NH 
CH 
FA 
F F 
FB F 
F 
3,3-Bis-(1,1-difluoro-ethyl)-1-prop-2-ynyl-
diaziridine 
III/35b 2.2:227 
31362 C8H10F4O4 
246.16 HOOC 
F F 2,2,7,7-Tetrafluoro-octanedioic acid III/35b 2.2:576 
COOH 
F F 
31363 C8H10F9O5P 
388.12 
O 
O 
CF3 
CF3 
2,2,2-Tris-(2,2,2-trifluoro-ethoxy)-2.5 -
[1,3,2]dioxaphospholane 
III/35b 2.2:577 
P O 
O 
O 
CF3 
31364 C8H10IN 
247.08 
698-70-4 
I 
CH3 
N 
CH3 p-iodo-N,N-dimethylaniline; 
(4-Iodo-phenyl)-dimethyl-amine 
III/35b 3.2:920 
31365 C8H10LiP 
144.08 
C8H10LiP III/35a 3.2:707 
P 
Li 
31366 C8H10MoO8 
330.1 Mo 
O 
O O 
CH3O 
OO 
H3C 
O O C8H10MoO8 III/35e 2.2.7:4722 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31367 C8H10NOPS2 
231.28 
O 
P 
NH S 
S 
CH3 
2-Methylsulfanyl-1,4-dihydro-
benzo[d][1,3,2]oxazaphosphinine 2-sulfide 
III/35a 3.2:708 
31368 C8H10NO3P 
199.14 
O 
PH 
O C8H10NO3P III/35c4 2.2:740 
NHO 
31369 C8H10N2 
134.18 
CNN 
4-Pyrrol-1-yl-butyronitrile III/35c2 2.2:433 
31370 C8H10N2 
134.18 
CN CN (R,S)-1,2-Dimethyl-1,2-dihydro-pyridine-3-
carbonitrile 
III/35c2 2.2:432 
+ 
CH3N N CH3 
CH3 CH3 
31371 C8H10N2 
134.18 N 
1-Methyl-4,7-dihydro-1H-indazole III/35c2 2.2:431 
N 
CH3 
31372 C8H10N2O 
150.18 
1007-36-9 
CH3 
NH 
O 
NH 
Ph 
1-Methyl-3-phenylurea; 
N-methyl-N'-phenyl-urea; 
Urea, N-methyl-N'-phenyl- 
III/35b 3.2:922 
31373 C8H10N2O 
150.18 
(tautomers) 
NH2 
C8H10N2O III/35b 3.2:923 
O(-) 
N(+)Ph 
CH3 
31374 C8H10N2O 
150.18 
937-40-6 Ph N 
CH3 
N 
O 
Benzenemethanamine, N-methyl-N-nitroso-
; 
Benzyl(methyl)nitrosamine; 
III/35e 2.2.3:3518 
Benzylamine, N-methyl-N-nitroso-; 
Methyl(benzyl)nitrosamine 
31375 C8H10N2O 
150.18 N 
N 
CH3 
O 
H3C 
C8H10N2O III/35e 2.2.3:3519 
31376 C8H10N2O 
150.18 
O 6-Ethyl-nicotinamide III/35c2 2.2:434 
NH2 
H5C2 N 
31377 C8H10N2O 
150.18 O 
CH3NHH3C N 
N-(6-Methyl-pyridin-2-yl)-acetamide III/35c2 2.2:435 
31378 C8H10N2O2 
166.18 
16947-63-0 
O2N 
NH2 
CH3 
CH3 Benzenamine, 2,6-dimethyl-4-nitro-; 
2,6-dimethyl-4-nitro-aniline; 
2,6-Dimethyl-4-nitro-phenylamine 
III/35b 3.2:925 
31379 C8H10N2O2 
166.18 N 
N 
CH3 
O 
O 
H3C 
C8H10N2O2 III/35e 2.2.3:3521 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31380 C8H10N2O2 
166.18 
O 
C2H5O 
CH3 4-Methyl-pyridazine-3-carboxylic acid ethyl 
ester 
III/35c2 2.2:438 
N 
N 
31381 C8H10N2O2 
166.18 CH2 
O 
CH3O NH 
NH 
5-Allyl-6-methyl-1H-pyrimidine-2,4-dione III/35c2 2.2:439 
31382 C8H10N2O2 
166.18 
H3C O 2,6-Dimethyl-4,6a-dihydro-3aH-pyrrolo[3,4-
c]pyrrole-1,3-dione 
III/35c2 2.2:437 
NN CH3 
O 
31383 C8H10N2O2 
166.18 
O 
2-Methoxy-7,8-dihydro-6H-pyrano[2,3-
b]pyrazine 
III/35c2 2.2:436 
N 
H3C 
O 
N 
31384 C8H10N2O2S 
198.24 O O 
H2C CH2 
S 
NN 
3,4-Diallyl-[1,3,4]thiadiazolidine-2,5-dione III/35c2 2.2:440 
31385 C8H10N2O3 
182.18 
O 
O 
C2H5O 
NH 
N 
(Pyrrole-1-carbonyl)-carbamic acid ethyl 
ester 
III/35c2 2.2:441 
31386 C8H10N2O3 
182.18 
26492-31-9 
O2N 
O(-) 
N(+) 
N,N-dimethyl-4-nitro-aniline-N-oxide III/35e 2.2.3:3522 
31387 C8H10N2O3 
182.18 
H3C 1-Acetyl-3-eth-(Z)-ylidene-piperazine-2,5-
dione 
III/35c2 2.2:442 
O 
NH 
CH3O 
N 
O 
31388 C8H10N2O3S 
214.24 
NO2 
S 
N 
CH3 
O 2-Nitro-benzenesulfinic acid dimethylamide III/35e 2.2.5:4171 
CH3 
31389 C8H10N2O3S 
214.24 
H5C2 
NH 
O 
CH3O 
S 
2-Ethylamino-4-oxo-4H-[1,3]thiazine-6-
carboxylic acid methyl ester 
III/35c2 2.2:443 
N 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31390 C8H10N2O4 
198.18 
O2N O 
H5C2 
O 
CH3 
N 
5-Ethoxy-1-methyl-4-nitro-1H-pyrrole-2-
carbaldehyde 
III/35c2 2.2:444 
31391 C8H10N2O4S 
230.24 
CH3 
CH3 
O 
O 
O 
O 
H3C 
NH S 
N 
2-Methylamino-thiazole-4,5-dicarboxylic 
acid dimethyl ester 
III/35c2 2.2:445 
31392 C8H10N2O4S 
230.24 CH3 
N 
O 
S 
O N,N-Dimethyl-2-nitro-benzenesulfonamide; 
N,N-Dimethyl-2-nitro-benzenesulfonamide 
III/35e 2.2.3:3523 
CH3 
NO2 
31393 C8H10N2S 
166.24 
2724-69-8 
NHNH 
Ph CH3 
S 
1-Methyl-3-phenyl-2-thiourea; 
1-Methyl-3-phenyl-thiourea; 
Thiourea, N-methyl-N'-phenyl-; 
Urea, 1-methyl-3-phenyl-2-thio- 
III/35b 3.2:926 
31394 C8H10N3OP 
195.16 
N 
N 
PH 
NH 
O 
CH3 
Ph 2-Methyl-5-phenyl-2,4-dihydro-
[1,2,4,3]triazaphosphole 3-oxide 
III/35a 3.2:709 
31395 C8H10N4 
162.19 
18523-44-9 
N3 
H3C 
CH3 
N 
Aniline, p-azido-N,N-dimethyl-; 
4-Azido-N,N-dimethylaniline; 
(4-Azido-phenyl)-dimethyl-amine; 
Benzenamine, 4-azido-N,N-dimethyl-
III/35b 3.2:927 
31396 C8H10N4OS 
210.26 O S 
CN 2-Amino-4-ethoxy-6-methylsulfanyl-
pyrimidine-5-carbonitrile 
III/35c2 2.2:446 
H5C2 CH3 
NN 
NH2 
31397 C8H10N4O4 
226.19 
O2N 
C2H5 
ONH 
NHNO 
O2N 
C2H5 
ONH 
NHNO 
+ 
(R,S)-5-Ethoxy-3-(5-nitro-furan-2-yl)-4,5-
dihydro-1H-[1,2,4]triazole 
III/35c2 2.2:447 
31398 C8H10N6 
190.21 
N 
N 
N 
N 
N 
N 
CH3 
CH3 Dimethyl-(4-pentazol-1-yl-phenyl)-amine III/35b 3.2:928 
31399 C8H10N6 
190.21 
C3H7NH 
Propyl-pyrimido[5,4-e][1,2,4]triazin-5-yl-
amine 
III/35c2 2.2:448 
N 
N 
N 
NN 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31400 C8H10Ni 
164.86 
(-) 
(delocalized system) 
Ni(2+) 
CH2(-) 
Cyclopentadienyl-allyl-nickel III/35c4 2.2:741 
CH2 
31401 C8H10O 
122.16 CH2H2C O 
1-[(Buta-1,3-dienyl)oxy]-buta-1,3-diene III/35e 2.2.2:2703 
31402 C8H10O 
122.16 
H2C 
H2C 
O 
H2C 
H2C 
+ O 
(1S*,4R*)-2,3-Dimethylene-7-oxa-
bicyclo[2.2.1]heptane 
III/35e 2.2.2:2708 
31403 C8H10OS 
154.23 
S C2H5 
O 
H3C 
1-(5-Ethyl-thiophen-2-yl)-ethanone III/35e 2.2.1:779 
31404 C8H10OS 
154.23 
S CH3H3C 
O 
CH3 
1-(2,5-Dimethyl-thiophen-3-yl)-ethanone III/35e 2.2.1:780 
31405 C8H10OS 
154.23 
4170-80-3 C2H5 
S 
Ph 
O Benzene, (ethylsulfinyl)-; 
Ethanesulfinyl-benzene; 
(Ethylsulfinyl)benzene; 
Sulfoxide, ethyl phenyl 
III/35e 2.2.5:4172 
31406 C8H10OS 
154.23 
CH3 
SPh 
O Methanesulfinylmethyl-benzene III/35e 2.2.5:4173 
31407 C8H10OS 
154.23 
1519-39-7 
O 
CH3 
SH3C 
1-Methanesulfinyl-4-methyl-benzene; 
(R)-methyl 4-methylphenyl sulfoxide 
III/35e 2.2.5:4174 
31408 C8H10OS 
154.23 
H3C O 2-Methyl-6,7-dihydro-5H-
cyclopenta[1,4]oxathiine 
III/35c2 2.2:449 
S 
31409 C8H10OS2 
186.29 
O 
CH3 
CH3 
S 
H3C 
S 
1-(4-Methyl-2-methylsulfanyl-thiophen-3-
yl)-ethanone 
III/35c2 2.2:450 
31410 C8H10OSe 
201.12 OH 
CH3 
Se 
(2-Methylselanyl-phenyl)-methanol III/35e 2.2.2:2710 
31411 C8H10O2S 
170.23 
O 
O 
S 
CH3 
H3C 
4-Methyl-benzenesulfinic acid methyl ester III/35e 2.2.5:4176 
31412 C8H10O2S 
170.23 
(mixture of isomers) 
O 
S 
OH3C 
Benzene, methyl-(methylsulfonyl)-; 
Methanesulfonyl-methyl-benzene; 
Methyl-tolyl sulphone; 
III/35e 2.2.5:4178 
(Methylsulfonyl)toluene 
31413 C8H10O2S 
170.23 
1859-03-6 
O 
O 
S 
Ph 
C2H5 
Benzenesulfinic acid, ethyl ester; 
Benzenesulfinic acid ethyl ester 
III/35e 2.2.5:4175 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31414 C8H10O2S 
170.23 O S 
O 1-Methanesulfinyl-4-methoxy-benzene III/35e 2.2.5:4179 
3517-99-5 
CH3H3C 
31415 C8H10O3 
154.16 CH3 
O Acetic acid 2,4-dimethyl-furan-3-yl ester III/35c2 2.2:452 
H3C 
OO 
CH3 
31416 C8H10O3 
154.16 
4915-21-3 
O C2H5 
O 
O 
ethyl 2-furylacetate; 
Furan-2-yl-acetic acid ethyl ester 
III/35c2 2.2:451 
31417 C8H10O3 
154.16 
O (3aS,7aS)-Hexahydro-isobenzofuran-1,3-
dione 
III/35e 2.2.1:782 
O 
O 
31418 C8H10O3S 
186.23 
O 
H5C2 
S 
CH3 
OO Acetic acid 5-ethylsulfanyl-furan-2-yl ester III/35c2 2.2:453 
31419 C8H10O3S 
186.23 
O 
O 
S 
CH3 
O 
H3C 
4-Methoxy-benzenesulfinic acid methyl 
ester 
III/35e 2.2.5:4184 
31420 C8H10O4 
170.16 
O CH3OO 
H3C O 
O 
O 
H3C O 
+ 
CH3O 
((R,S)-5-Methyl-4-oxo-4,5-dihydro-furan-2-
yl)-acetic acid methyl ester 
III/35c2 2.2:454 
31421 C8H10O5 
186.16 
C2H5 
O 
4-Methoxy-2-oxo-2,5-dihydro-furan-3-
carboxylic acid ethyl ester 
III/35c2 2.2:455 
O 
O 
H3C 
O 
O 
31422 C8H10O5 
186.16 
O 
C2H5O 
O 
Carbonic acid ethyl ester 2-oxo-dihydro-
furan-(3E)-ylidenemethyl ester 
III/35c2 2.2:456 
O 
O 
31423 C8H10O6 
202.16 
O C2H5 
O 
COOHO 
O 
2-[1,3]Dioxolan-2-ylidene-malonic acid 
monoethyl ester 
III/35c2 2.2:457 
31424 C8H10P2 
168.11 
1,2-Diphospha-tricyclo[5.2.1.02,6]deca-4,8-
diene 
III/35a 3.2:711 
P 
P 
31425 C8H10P2 
168.11 
PH 1,2,3,4-Tetrahydro-
benzo[1,4]diphosphinine 
III/35a 3.2:710 
PH 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31426 C8H10Pd 
212.56 
(-) 
(delocalized system) 
Pd(2+) 
CH2(-) 
Cyclopentadienyl-allyl-palladium III/35c4 2.2:742 
CH2 
31427 C8H10Pt 
301.24 
(-) 
(delocalized system) 
Pt(2+) 
CH2(-) 
Cyclopentadienyl-allyl-platinum III/35c4 2.2:743 
CH2 
31428 C8H10Te 
233.76 
Te 
H5C2 C2H5 
1-But-1-ynyltellanyl-but-1-yne III/35c4 2.2:745 
31429 C8H10Te 
233.76 H3C 
Te Ph Methyltellanylmethyl-benzene III/35c4 2.2:746 
31430 C8H11BClN 
167.44 
Ph 
B 
Cl 
N 
H3C 
CH3 
Chloro-(dimethylamino)-phenylborane III/35c4 2.2:747 
31431 C8H11BrS 
219.14 
C4H9 
Br 
2-Bromo-3-butyl-thiophene III/35c2 2.2:458 
S 
31432 C8H11ClNP 
187.61 P 
N 
Cl 
Ph 
CH3 
CH3 
C8H11ClNP III/35b 3.2:929 
31433 C8H11ClN2O2 
202.64 
CH3O 
4-Chloro-2-isopropyl-5-methoxy-2H-
pyridazin-3-one 
III/35c2 2.2:459 
Cl 
N 
O N 
CH3H3C 
31434 C8H11Cl2NSi 
220.17 Si 
N 
Cl 
Ph 
CH3 
CH3 
Cl (Dichloro-phenyl-silanyl)-dimethyl-amine III/35b 3.2:930 
31435 C8H11FNOPS 
219.22 Ph 
NH 
P 
S F 
O 
C2H5 
C8H11FNOPS III/35a 3.2:712 
31436 C8H11FNP 
171.15 P 
F 
CH3 
C8H11FNP III/35a 3.2:713 
Ph N 
CH3 
31437 C8H11FNPS2 
235.28 Ph 
S 
P 
S F 
N 
CH3 
CH3 
C8H11FNPS2 III/35a 3.2:714 
31438 C8H11FO2 
158.17 H7C3 
F 
COOH 
4-Fluoro-octa-2,4-dienoic acid III/35b 2.2:579 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31439 C8H11FO5 
206.17 H3C O 
O O 
O F 
C2H5 
CH3O 
H3C O 
O O 
O F 
C2H5 
CH3O 
+ 
(R,S)-2-Acetoxy-2-fluoro-3-oxo-butyric acid 
ethyl ester 
III/35b 2.2:580 
31440 C8H11F2OP 
192.14 
H3C P 
F 
CH3 C8H11F2OP III/35a 3.2:715 
F 
O 
Ph 
31441 C8H11F2OP 
192.14 Ph PH 
FA 
FA 
O C2H5 
C8H11F2OP III/35b 2.2:581 
31442 C8H11F2P 
176.14 
CH3 
H3C P 
F 
C8H11F2P III/35a 3.2:716 
F 
Ph 
31443 C8H11F3NP 
209.15 
Ph 
N 
CH3 
P 
F 
H3C C8H11F3NP III/35a 3.2:717 
F 
F 
31444 C8H11F3N2 
192.18 N CF3 
CN 
N CF3 
CN 
+ 
(R,S)-1-(2,2,2-Trifluoro-ethyl)-piperidine-2-
carbonitrile 
III/35b 2.2:582 
31445 C8H11F3N2O 
208.18 
OH 
CH3F3C 
NHNCH3 
OH 
CH3F3C 
NHNCH3 
+ 
(R,S)-2-Methyl-1-(5-trifluoromethyl-1H-
pyrazol-3-yl)-propan-1-ol 
III/35c2 2.2:460 
31446 C8H11F3N2O7 
304.18 
O 
O CH3O2N 
O2N F 
F F 
O 
CH3 
Isobutyric acid 2,2-difluoro-2-(2-fluoro-2,2-
dinitro-ethoxy)-ethyl ester 
III/35b 2.2:583 
31447 C8H11F3O 
180.17 
CH3 CH3 (E)-(R,S)-1,1,1-Trifluoro-4-methylene-hept-
5-en-2-ol 
III/35b 2.2:584 
OH OH+ 
CF3H2C CF3H2C 
31448 C8H11F3O 
180.17 
CH2OH 
H3C CH2OH 
H3C 
+ 
(R,S)-1,1,1-Trifluoro-5-methyl-4-methylene-
hex-5-en-2-ol 
III/35b 2.2:586 
CF3H2C CF3H2C 
31449 C8H11F3O 
180.17 
H9C4 
OH 
CF3 
H9C4 
OH 
CF3 
+ 
(R,S)-1,1,1-Trifluoro-oct-3-yn-2-ol III/35b 2.2:588 
31450 C8H11F3O 
180.17 
OH 
FC 
FA 
FB 
C8H11F3O III/35b 2.2:589 
31451 C8H11F3O 
180.17 
CH3 4,6-Dimethyl-2-trifluoromethyl-3,6-dihydro-
2H-pyran 
III/35b 2.2:585 
O 
H3C CF3 
31452 C8H11F3O 
180.17 O 
H3C CF3 
H3C 
O 
H3C CF3 
H3C 
+ 
(R,S)-4,5-Dimethyl-2-trifluoromethyl-3,6-
dihydro-2H-pyran 
III/35b 2.2:587 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31453 C8H11F3O2 
196.17 H2C C2H5O 
O (R,S)-2-Trifluoromethyl-pent-4-enoic acid 
ethyl ester 
III/35b 2.2:590 
CF3 
+ 
O 
H2C C2H5O 
CF3 
31454 C8H11F3O2 
196.17 H3C 
CF3 
COOH 
CH3 
H3C 
CH3 
+ 
CF3 
COOH(R,S)-5-Methyl-2-trifluoromethyl-hex-4-
enoic acid 
III/35b 2.2:591 
31455 C8H11F3O3 
212.17 H2C 
C2H5 
OO 
CF3 
O 
(R,S)-2-Allyloxy-3,3,3-trifluoro-propionic 
acid ethyl ester 
III/35b 2.2:592 
+ 
H2C 
C2H5 
OO 
CF3 
O 
31456 C8H11F5N2O 
246.18 
O 2,2,3,3,3-Pentafluoro-1-(4-methyl-
piperazin-1-yl)-propan-1-one 
III/35b 2.2:594 
N C2F5 
N 
H3C 
31457 C8H11IN2 
262.09 
H3CCH3 
N 
CH3 5-Iodo-2-isopropyl-4-methyl-pyrimidine III/35c2 2.2:461 
N 
I 
31458 C8H11IN2O 
278.09 
O 
CH3NH 
1-Methyl-3-methylcarbamoyl-pyridinium 
iodide 
III/35c2 2.2:462 
I(-) N(+) 
CH3 
31459 C8H11IO2 
266.08 
I 
CH3OO 
I 
+ 
O 
CH3O 
(R,S)-3-Eth-(E)-ylidene-6-iodomethyl-
tetrahydro-pyran-2-one 
III/35c2 2.2:463 
31460 C8H11I3O2 
519.88 
I3C 
O 
O 
C4H9 
(E)-4-Butoxy-1,1,1-triiodo-but-3-en-2-one III/35e 2.2.2:2715 
31461 C8H11I3O2 
519.88 
I3C 
O 
O 
CH3 
CH3 
(E)-1,1,1-Triiodo-4-isobutoxy-but-3-en-2-
one 
III/35e 2.2.2:2716 
31462 C8H11I3O2 
519.88 
I3C 
O 
O 
C3H7 
CH3 (E)-1,1,1-Triiodo-4-propoxy-pent-3-en-2-
one 
III/35e 2.2.2:2718 
31463 C8H11I3O2 
519.88 
I3C 
O 
O 
C3H7 
CH3 
(E)-1,1,1-Triiodo-3-methyl-4-propoxy-but-3-
en-2-one 
III/35e 2.2.2:2719 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31464 C8H11I3O2 
519.88 
O 
O CH3 
CH3 
I3C 
CH3 (E)-1,1,1-Triiodo-4-isopropoxy-pent-3-en-2-
one 
III/35e 2.2.2:2720 
31465 C8H11I3O2 
519.88 
O 
O CH3 
CH3 
I3C 
CH3 
(E)-1,1,1-Triiodo-4-isopropoxy-3-methyl-
but-3-en-2-one 
III/35e 2.2.2:2721 
31466 C8H11I3O2 
519.88 
O 
O C2H5I3C 
CH3 (E)-4-((R,S)-sec-Butoxy)-1,1,1-triiodo-but-
3-en-2-one 
III/35e 2.2.2:2717 
+ 
O CH3 
O C2H5I3C 
31467 C8H11NO 
137.18 
C2H5 
OH3C 
NH 
3-Ethyl-4-methyl-1H-pyrrole-2-
carbaldehyde 
III/35c2 2.2:467 
31468 C8H11NO 
137.18 
O 
NH 
CH3 6-[1-Methylamino-meth-(Z)-ylidene]-
cyclohex-2-enone 
III/35e 2.2.1:783 
31469 C8H11NO 
137.18 
874-52-2 Ph 
N(+) 
O(-) 
Aniline, N,N-dimethyl-, N-oxide; 
Benzenamine, N,N-dimethyl-, N-oxide; 
Dimethylaniline N-oxide; 
Dimethylaniline oxide 
III/35e 2.2.3:3524 
31470 C8H11NO 
137.18 
2-Pyridin-3-yl-propan-2-ol III/35c2 2.2:464 
OH 
N 
31471 C8H11NO 
137.18 
H3C 
H3C 
O(-)N(+) 
4-Isopropyl-pyridine 1-oxide III/35c2 2.2:465 
31472 C8H11NO 
137.18 
20609-07-8 
O(-) 
C3H7 
N(+) 
2-Propyl-pyridine 1-oxide; 
2-propylpyridine 1-oxide; 
Pyridine, 2-propyl-, 1-oxide 
III/35e 2.2.3:3525 
31473 C8H11NO 
137.18 
CH3 2-Isopropyl-pyridine 1-oxide III/35e 2.2.3:3526 
CH3 
N(+) 
O(-) 
31474 C8H11NO 
137.18 
CH3 
CH3O 
N N 
+ 
CH3 
CH3O 
3-((R,S)-1-Methoxy-ethyl)-pyridine III/35c2 2.2:466 
31475 C8H11NO 
137.18 
CH3 CH3 (R,S)-1-Methyl-5,6,7,7a-tetrahydro-
pyrrolizin-3-one 
III/35c2 2.2:468 
+ 
N N 
O O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31476 C8H11NOS 
169.24 
S N 
CH3 
O 
H3C 
CH3 
1-(5-Dimethylamino-thiophen-2-yl)ethanone 
III/35e 2.2.1:784 
31477 C8H11NOS 
169.24 
S 
Ph 
O 
N 
CH3 
Benzenesulfinic acid dimethylamide III/35b 3.2:933; 
III/35e 2.2.5:4185 
CH3 
31478 C8H11NO2 
153.18 
O 
O 
N 
CH3 
CH3 
2-Dimethylaminomethylene-cyclopentane-
1,3-dione 
III/35e 2.2.1:785 
31479 C8H11NO2 
153.18 
O 
N 
C8H11NO2 III/35e 2.2.1:786 
O 
31480 C8H11NO2 
153.18 
C2H5 
O 
CH3O 
N 
1-Ethyl-1H-pyrrole-2-carboxylic acid methyl 
ester 
III/35c2 2.2:469 
31481 C8H11NO2 
153.18 
3284-51-3 
O 
C2H5O 
H3C NH 
ethyl 5-methylpyrrole-2-carboxylate; 
5-Methyl-1H-pyrrole-2-carboxylic acid ethyl 
ester; 
5-methyl-pyrrole-2-carboxylic acid ethyl 
ester 
III/35c2 2.2:472 
31482 C8H11NO2 
153.18 
O 
O 
NH CH3 
2-Methylaminomethylene-cyclohexane-1,3-
dione 
III/35e 2.2.1:787 
31483 C8H11NO2 
153.18 
O 
O CH3NH N-(3-Oxo-cyclohex-1-enyl)-acetamide; 
N-(3-Oxo-cyclohex-1-enyl)-acetamide 
III/35e 2.2.1:789 
31484 C8H11NO2 
153.18 
N 
O 
H3C 
CH3 
O C8H11NO2 III/35e 2.2.1:788 
31485 C8H11NO2 
153.18 
4H-Pyridine-1-carboxylic acid ethyl ester III/35c2 2.2:470 
ON 
C2H5 
O 
31486 C8H11NO2 
153.18 
126424-77-9 
H3C 
O 
ON 
H3C 
O 
+ 
N O 
(R,S)-7a-Methoxy-5,6,7,7a-tetrahydro-
pyrrolizin-3-one; 
Pyrrolame B 
III/35c2 2.2:471 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31487 C8H11NO2S 
185.24 S 
OO 
CH3 
N-Dimethyl-benzenesulfonamide III/35b 3.2:934 
NH 
H3C 
31488 C8H11NO2S 
185.24 
5339-67-3 Ph 
S 
NH 
O 
C2H5 
O Benzenesulfonamide, N-ethyl-; 
N-Ethyl-benzenesulfonamide; 
N-Ethylbenzenesulfonamide 
III/35b 3.2:936 
31489 C8H11NO3 
169.18 
O 
C2H5 
O 
HO 4-Hydroxy-1-methyl-1H-pyrrole-3-carboxylic 
acid ethyl ester 
III/35c2 2.2:474 
N 
H3C 
31490 C8H11NO3 
169.18 
O 
O 
O 
CH3 
N 
1-(2-Oxo-pyrrolidin-1-yl)-butane-1,3-dione III/35c2 2.2:475 
31491 C8H11NO3 
169.18 H5C2 
O 
CH3 
O 
OH 
NH 
H5C2 
O 
CH3 
O 
OH 
NH+ 
(R,S)-3-Acetyl-5-ethyl-4-hydroxy-1,5-
dihydro-pyrrol-2-one 
III/35c2 2.2:473 
31492 C8H11NO3 
169.18 
N 
O 
O 
O 
C2H5 
C8H11NO3 III/35e 2.2.1:790 
31493 C8H11NO5 
201.18 OH3C 
O 
O 
CH3 
O 
O 
NH 
OH3C 
O 
O 
CH3 
O 
O 
NH 
+ 
2-((R,S)-4-Oxo-azetidin-2-yl)-malonic acid 
dimethyl ester 
III/35c2 2.2:476 
31494 C8H11NO5 
201.18 
O 
H3C 
O 
CH3 
O 
(4R,5S)-5-Methoxycarbonylmethyl-4,5-
dihydro-isoxazole-4-carboxylic acid methyl 
ester 
III/35c2 2.2:477 
O 
O 
N 
31495 C8H11NS 
153.25 
24380-79-8 
Ph 
S 
N 
CH3 
CH3 N,N-dimethyl-S-phenyl-thiohydroxylamine; 
N,N-Dimethyl-S-phenyl-thiohydroxylamine 
III/35b 3.2:937 
31496 C8H11N3O2 
181.19 
CH3 
O 
N 
N 
N 
4-Methyl-2,4,6-triaza-
tricyclo[5.2.1.02,6]decane-3,5-dione 
III/35c2 2.2:478 
O 
31497 C8H11N3O3 
197.19 
CH3 
NH2 
N O 
1-Acetyl-3-(1-hydrazono-ethyl)-4-hydroxy-
1,5-dihydro-pyrrol-2-one 
III/35c2 2.2:479 
O 
H3C N 
HO 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31498 C8H11N3O4 
213.19 
CH3 
CH3O 
O 
H2N 
O2N 
N 
6-Dimethoxymethyl-3-nitro-pyridin-2-
ylamine 
III/35c2 2.2:480 
31499 C8H11N5 
177.21 
N 
N NH 
N 
H7C3 
NH2 2-Propyl-9H-purin-6-ylamine III/35b 3.2:939 
31500 C8H11N5 
177.21 
NH2 8-Propyl-9H-purin-6-ylamine III/35b 3.2:940 
N 
N 
N NH 
C3H7 
31501 C8H11N5 
177.21 N 
H3C CH3 Dimethyl-(9-methyl-9H-purin-6-yl)-amine III/35b 3.2:941 
N 
N 
N N 
CH3 
31502 C8H11N5 
177.21 
N 
N 
N 
N 
N 
H9C4 
6-Butyl-tetrazolo[1,5-a]pyrimidine III/35b 3.2:938 
31503 C8H11N5O 
193.21 
N 
N 
NH 
NH2H3C 
H3C 
N 
N 
N 
NH 
NH2H3C 
H3C 
N 
+ 
(6S,7S)-2-Amino-6,7-dimethyl-6,7-dihydro-
3H-pteridin-4-one 
III/35b 3.2:942 
O O 
31504 C8H11OP 
154.15 
O 
H5C2 
PH2 4-Ethoxy-phenyl-phosphane III/35a 3.2:718 
31505 C8H11OPS 
186.21 
Ph 
PH 
S 
O 
H5C2 
Phenyl-phosphinothioic acid ethyl ester III/35c4 2.2:748 
31506 C8H11O2P 
170.15 
2511-09-3 Ph 
PH 
O 
C2H5 
O 
Ethyl phenylphosphinate; 
Phenyl-phosphinic acid ethyl ester; 
Phosphinic acid, phenyl-, ethyl ester 
III/35e 2.2.4:3762 
31507 C8H11O2P 
170.15 
2946-61-4 
Ph 
P 
O 
CH3 
O 
CH3 dimethyl phenylphosphonite III/35a 3.2:719 
31508 C8H11O2P 
170.15 
O 
OH 
P 
2-Oxo-2,3,4,7-tetrahydro-1H-
2.5-.s.p..sp...d..-2-..; 
2-Oxo-2,3,4,7-tetrahydro-1H-2.5-
isophosphindol-2-ol 
III/35c2 2.2:481 
31509 C8H11O2PSe 
249.11 
O 
H3C P 
O 
CH3 
Ph Se C8H11O2PSe III/35a 3.2:720 
31510 C8H11O3P 
186.15 PH 
O 
CH3OH3C 
O 
(4-Methoxy-phenyl)-phosphinic acid methyl 
ester 
III/35e 2.2.4:3764 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31511 C8H11O3P 
186.15 
2240-41-7 Ph 
P 
O 
CH3 
O 
O CH3 Phenyl-phosphonic acid dimethyl ester III/35e 2.2.4:3763 
31512 C8H11O3P 
186.15 
18351-42-3 Ph 
O 
P 
O 
CH3 
O 
CH3 Phosphorous acid dimethyl ester phenyl 
ester 
III/35a 3.2:721 
31513 C8H11PSe 
217.11 
Ph 
P 
Se C8H11PSe III/35a 3.2:722 
31514 C8H12BKN4 
214.12 
N 
N 
N 
N 
BH2(-) 
H3C CH3 
K(+) 
C8H12BN4K III/35a 2.2:763 
31515 C8H12BN3 
161.01 
NH 
B 
NH 
N 
CH3 
CH3 
C8H12BN3 III/35a 2.2:762 
31516 C8H12BN4 
175.02 
N 
N 
N 
N 
BH2(-) 
H3C CH3 C8H12BN4 
-III/35a 2.2:763 
31517 C8H12BrN 
202.09 N 
Br 1-(4-Bromo-butyl)-1H-pyrrole III/35c2 2.2:482 
31518 C8H12ClF 
162.63 
Cl 
+ 
Cl (1S*,6R*,7R*)-7-Chloro-7-fluoro-1-methyl-
bicyclo[4.1.0]heptane 
III/35b 2.2:597 
F F 
31519 C8H12ClFO 
178.63 
FOH 
Cl 1-((E)-1-Chloro-2-fluoro-vinyl)-cyclohexanol III/35b 2.2:599 
31520 C8H12ClFO 
178.63 
Cl Cl (1R*,6R*,7R*)-7-Chloro-7-fluoro-1-
methoxy-bicyclo[4.1.0]heptane 
III/35b 2.2:598 
O F 
+ 
O F 
CH3 CH3 
31521 C8H12ClN 
157.64 
5882-44-0 NH(+) 
CH3 
CH3 
Cl(-) 
Ph 
Benzenamine, N,N-dimethyl-, 
hydrochloride; 
Dimethyl-phenyl-ammonium chloride; 
N,N-Dimethylaniline hydrochloride; 
III/35b 3.2:943 
N,N-dimethylanilinium chloride 
31522 C8H12ClN3 
185.65 
H3C 
Cl(-) 
NH(+) NH2 
NH2 
C8H12ClN3 III/35b 3.2:944 
31523 C8H12ClN3O 
201.65 
Cl 4-(2-Chloro-ethyl)-3,5-dimethyl-pyrazole-1-
carboxylic acid amide 
III/35c2 2.2:483 
H3C 
O 
NH2 
CH3 
NN 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31524 C8H12ClN3O 
201.65 
O 
Cl(-) 
NH(+) NH2 
NH2H3C 
C8H12ClN3O III/35b 3.2:945 
31525 C8H12ClN7O 
257.68 
N NH2N 
CH3 N-(3-Amino-6-chloro-5-dimethylamino-
pyrazine-2-carbonyl)-guanidine 
III/35b 3.2:946 
H3C 
NCl 
N NH2 
O NH2 
31526 C8H12Cl2N3O4P3 
378.03 
N 
P 
N 
P 
N 
O 
OO 
O 
Cl 
P 
Cl 
CH2 
CH2H2C 
H2C 
2,2-Dichloro-4,4,6,6-tetrakis-vinyloxy-
2.5,4.5,6.5-[1,3,5,2,4,6]triazatriphosphinine 
III/35a 3.2:723 
31527 C8H12FN 
141.19 
F 
NH 
C4H9 
2-Butyl-3-fluoro-1H-pyrrole III/35c2 2.2:484 
31528 C8H12F2O 
162.18 H11C5 
F 
O 
F 
(Z)-2-Fluoro-oct-2-enoyl fluoride III/35b 2.2:600 
31529 C8H12F2O 
162.18 
C4H9 
OF 
F 
C4H9 
OF 
F+ 
1-((R,S)-2,2-Difluoro-cyclopropyl)-pentan-1-
one 
III/35b 2.2:603 
31530 C8H12F2O 
162.18 
OH 
FA 
FB 
1-(1,2-Difluoro-vinyl)-cyclohexanol III/35b 2.2:601 
31531 C8H12F2O 
162.18 
OH FB 
FA 1-(2,2-Difluoro-vinyl)-cyclohexanol III/35b 2.2:602 
31532 C8H12F2O2 
178.18 
O 
H9C4 F 
O 
F 
4,4-Difluoro-but-3-enoic acid butyl ester III/35b 2.2:605 
31533 C8H12F2O2 
178.18 
FB 
FA C3H7 
O 
O C2H5 
2-Difluoromethylene-pentanoic acid ethyl 
ester 
III/35b 2.2:606 
31534 C8H12F2O2 
178.18 
COOH 
F F Cyclohexyl-difluoro-acetic acid III/35b 2.2:604 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31535 C8H12F2O4 
210.18 O 
O 
F 
Hexanedioic acid difluoromethyl ester III/35b 2.2:607 
OF 
O 
31536 C8H12F3NO 
195.18 
(Z)-4-tert-Butylamino-1,1,1-trifluoro-but-3-
en-2-one 
III/35e 2.2.1:791 
NH 
OF3C 
31537 C8H12F3NO3 
227.18 
NHH3C 
CF3 
O COOH (R,S)-2-Acetylamino-6,6,6-trifluoro-
hexanoic acid 
III/35b 2.2:608 
+ 
O COOH 
NHH3C 
CF3 
31538 C8H12F3NO4 
243.18 
O 
OO 
CH3 
N 
O 
CH3 
F3C 
1-(3,5-Dimethyl-5-trifluoromethyl-
[1,2,4]trioxolan-3-yl)-ethanone O-methyl-
oxime 
III/35e 2.2.2:2722 
31539 C8H12F4O3 
232.17 
C2H5O 
H5C2 
O 
F3C F 
OH 2-Fluoro-3-hydroxy-2-trifluoromethyl-
pentanoic acid ethyl ester 
III/35b 2.2:609 
31540 C8H12F4O3 
232.17 OHOH5C2 
O 
F3C F 
OH5C2 
O 
F3C F 
+ OH 
(R,S)-2-Fluoro-3-hydroxy-3-methyl-2-
trifluoromethyl-butyric acid ethyl ester 
III/35b 2.2:610 
31541 C8H12Ge 
180.82 
CH2 
H2C Ge CH2 
H2C Tetravinyl-germane III/35c4 2.2:749 
31542 C8H12HgO6 
404.77 
O 
Hg 
H3C 
O 
O 
O 
CH3 
O 
O 
H3C 
C8H12HgO6 III/35c4 2.2:750 
31543 C8H12IN3 
277.11 
CH3 
H3CN 
CH3 5-Iodo-2-isopropyl-6-methyl-pyrimidin-4-
ylamine 
III/35c2 2.2:485 
N 
I 
NH2 
31544 C8H12IO4OsP 
520.29 
Os(+) 
C 
C 
O 
H3C 
O 
C 
O 
C 
P 
I(-) 
Trimethylphosphine-methyl-
tetracarbonylosmium(I) iodide 
III/35c4 2.2:751 
O 
31545 C8H12MnO7P 
306.09 C 
Mn 
CH3 O 
C 
O 
O 
Trimethyloxyphosphine-methyl-
tetracarbonylmanganese 
III/35e 2.2.7:4670 
O 
C 
O 
P 
C O O 
CH3 
CH3 
CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31546 C8H12Mo2O18 
588.05 
Mo(-) 
O 
Mo(-) 
O 
O 
H2O 
O 
H2O 
HO 
HO 
O OH 
OH 
C8H12Mo2O18 III/35e 2.2.7:4723 
O OOO 
O O O 
31547 C8H12N 
122.19 
NH3(+) 
H3C 
H3C 3,4-Dimethyl-phenyl-ammonium III/35b 3.2:947 
31548 C8H12N 
122.19 
NH3(+)H3C 
CH3 
3,5-Dimethyl-phenyl-ammonium III/35b 3.2:948 
31549 C8H12N 
122.19 
NH3(+) 
CH3 
CH3 
2,6-Dimethyl-phenyl-ammonium III/35b 3.2:949 
31550 C8H12N 
122.19 
NH3(+) 
CH3 
H3C 
2,4-Dimethyl-phenyl-ammonium III/35b 3.2:950 
31551 C8H12N 
122.19 
NH3(+) 
CH3 
CH3 
2,5-Dimethyl-phenyl-ammonium III/35b 3.2:951 
31552 C8H12NOP 
169.16 Ph 
NH 
P 
O 
C8H12NOP III/35a 3.2:724; 
III/35b 3.2:952 
31553 C8H12NO2PSe 
264.12 
Ph 
NH 
P 
O O 
Se 
CH3 
CH3 C8H12NO2PSe III/35a 3.2:725 
31554 C8H12NO3P 
201.16 
NH2 
PHHO 
O 
OH NH2 
PHHO 
O 
+ 
OH 
[(R,S)-1-Amino-2-(4-hydroxy-phenyl)-ethyphosphinic acid 
l]-III/35a 3.2:726 
31555 C8H12NP 
153.16 
PH2 Dimethyl-(4-phosphanyl-phenyl)-amine III/35a 3.2:727 
N 
H3C 
CH3 
31556 C8H12NP 
153.16 Ph 
PH 
NH2 
2-Phenylphosphanyl-ethylamine III/35a 3.2:728 
31557 C8H12NP 
153.16 Ph 
NH 
CH3 
CH3 
P 
N-Phenylamino-dimethylphosphane III/35b 3.2:953 
31558 C8H12NPS 
185.23 Ph 
NH 
P 
S 
C8H12NPS III/35b 3.2:954 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31559 C8H12NPSe 
232.12 Ph 
NH 
P 
Se 
C8H12NPSe III/35b 3.2:955 
31560 C8H12NPTe 
280.76 Ph 
NH 
P 
Te 
C8H12NPTe III/35b 3.2:956 
31561 C8H12N2 
136.19 
7218-02-2 
H2N 
NH2 
CH3 
CH3 1,4-Benzenediamine, 2,6-dimethyl-; 
2,6-Dimethyl-benzene-1,4-diamine; 
2,6-dimethylbenzene-1,4-diamine 
III/35b 3.2:958 
31562 C8H12N2 
136.19 
99-98-9 
NH2 
CH3 
N 
H3C 
1,4-Benzenediamine, N,N-dimethyl-; 
N,N-Dimethyl-benzene-1,4-diamine 
III/35b 3.2:957 
31563 C8H12N2 
136.19 
H5C2 NH2 
CH3 
N 
6-Ethyl-3-methyl-pyridin-2-ylamine III/35c2 2.2:486 
31564 C8H12N2O 
152.19 
CH3H3C 
O(-)N(+) 
H3C 
+ 
CH3 
O(-)N(+) 
(R,S)-3,5,7-Trimethyl-3H-[1,2]diazepine 2oxide 
III/35c2 2.2:487 
N N 
H3C H3C 
31565 C8H12N2OS 
184.26 
C2H5 
H5C2 
N OS 
N 
2-Diethylamino-thiazole-5-carbaldehyde III/35c2 2.2:488 
31566 C8H12N2O2S 
200.26 
CH3 
NH 
H3C N 
2-Imino-3,4-dimethyl-2,3-dihydro-thiazole-
5-carboxylic acid ethyl ester 
III/35c2 2.2:489 
O 
S 
O 
H5C2 
31567 C8H12N2O3 
184.19 
O 
H3C 
O 
N 
5-Hydroxy-1-propyl-1H-imidazole-4-
carboxylic acid methyl ester 
III/35c2 2.2:490 
HO N 
C3H7 
31568 C8H12N2O3 
184.19 
Pyrazole-1-carboperoxoic acid tert-butyl 
ester 
III/35c2 2.2:491 
NN 
O 
O 
O 
31569 C8H12N2O3 
184.19 CH3 
CH3 
O 
N N 
1-(3,6-Dimethyl-3a,6a-dihydro-3H-
isoxazolo[5,4-d]isoxazol-2-yl)-ethanone 
III/35c2 2.2:492 
OO 
H3C 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31570 C8H12N2O4 
200.19 CH3 
O 
O 
(3R,4R)-3-Methyl-4,5-dihydro-3H-pyrazole-
3,4-dicarboxylic acid dimethyl ester 
III/35c2 2.2:494 
OH3C 
O 
N 
N 
31571 C8H12N2O4 
200.19 
O 
OO 
CH3 
N 
O 
CH3 
NC 
5-1-[Methoxyimino]-ethyl-3,5-dimethyl-
[1,2,4]trioxolane-3-carbonitrile 
III/35e 2.2.2:2723 
31572 C8H12N2O4 
200.19 
CH3 
H5C2 
O OH 
OO 
N 
N 
CH3 
H5C2 
O OH 
OO 
N 
N 
+ 
(R,S)-5-Ethoxy-3-hydroxy-1,3-dimethyl-3H-
pyrazine-2,6-dione 
III/35c2 2.2:493 
31573 C8H12N2O4S 
232.26 
H3C 
N OH 
O 
H5C2 
O O 
NS 
H3C 
N OH 
O 
H5C2 
O O 
NS+ 
(R,S)-2-(Hydroxy-methyl-amino)-5-methyl-
4-oxo-4,5-dihydro-thiazole-5-carboxylic 
acid ethyl ester 
III/35c2 2.2:495 
31574 C8H12N3P 
181.18 
NC 
CH3 
3-Dimethylaminomethyl-1-methyl-1H-
[1,2]azaphosphole-5-carbonitrile 
III/35a 3.2:729 
N N 
PH3C CH3 
31575 C8H12N4O2 
196.21 
CH3 
H3C 
N N 
Dimethyl-[(E)-2-(1-methyl-5-nitro-1H-
imidazol-4-yl)-vinyl]-amine 
III/35c2 2.2:496 
O2N N 
CH3 
31576 C8H12N4O3 
212.21 
O 
C3H7NH 
NO2 
H3C 
NHN 
5-Methyl-4-nitro-2H-pyrazole-3-carboxylic 
acid propylamide 
III/35c2 2.2:497 
31577 C8H12O 
124.18 
3045-99-6 
O 
CH2 
2-Methylene-cycloheptanone III/35e 2.2.1:793 
31578 C8H12OS 
156.25 
CH2O 
S 
CH2O 
S 
+ 
(R,S)-2,2-Dimethyl-5-vinyl-dihydro-
thiophen-3-one 
III/35c2 2.2:498 
31579 C8H12O2 
140.18 
O O 
2,2,4,4-Tetramethyl-cyclobutane-1,3-dione III/35e 2.2.1:794 
31580 C8H12O2 
140.18 
C2H5 
O 
O 
5-Ethyl-3,3-dimethyl-3H-furan-2-one III/35c2 2.2:499 
31581 C8H12O2 
140.18 
O 4-Ethyl-2,2-dimethyl-furan-3-one III/35c2 2.2:500 
O 
C2H5 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31582 C8H12O2 
140.18 
H3C 
O 
O 
H3C 
(R)-5-Isopropyl-5-methyl-5H-furan-2-one III/35c2 2.2:501 
31583 C8H12O2 
140.18 
O 
O 
C2H5 
2-Ethoxy-cyclohex-2-enone III/35e 2.2.1:796 
31584 C8H12O2 
140.18 O 
CH3 
O 
H3C 
1,4-Dimethoxy-cyclohexa-1,3-diene III/35e 2.2.2:2726 
31585 C8H12O2 
140.18 O 
CH3 
O 
H3C 
1,4-Dimethoxy-cyclohexa-1,4-diene III/35e 2.2.2:2727 
31586 C8H12O2 
140.18 
OH3C O 4,4,6-Trimethyl-3,4-dihydro-pyran-2-one III/35e 2.2.1:798 
31587 C8H12O2 
140.18 O O 
+ 
(1S*,6R*)-7,8-Dioxa-bicyclo[4.2.2]dec-9-
ene 
III/35e 2.2.2:2728 
O O 
31588 C8H12O2Pd 
246.58 
(delocalized system) 
CH3 
C8H12O2Pd III/35c4 2.2:752 
CH2 O 
Pd(+) 
CH2(-) O 
CH3 
31589 C8H12O2S 
172.25 O 
C2H5 
O 
2-Methyl-4,5-dihydro-thiophene-3-
carboxylic acid ethyl ester 
III/35c2 2.2:502 
CH3 
S 
31590 C8H12O2S2 
204.31 
CH3S 3-Methyl-5,6-dihydro-[1,4]dithiine-2-
carboxylic acid ethyl ester 
III/35c2 2.2:503 
O 
C2H5S 
O 
31591 C8H12O2Te 
267.78 O O 
CH3 
O O 
CH3 (2R*,6S*)-2,4,6-Trimethyl-telluropyran-3,5-
dione 
III/35c4 2.2:753 
+ 
Te CH3H3C Te CH3H3C 
31592 C8H12O3 
156.18 
(1S*,2S*,5R*,6R*)-2-Methyl-3,4,10-trioxa-
tricyclo[4.2.1.12,5]decane 
III/35e 2.2.2:2729 
O O+ 
O O 
O O 
31593 C8H12O3S 
188.24 
O 
C2H5 
O 
O 
S 
O 
C2H5 
O 
O 
S+ 
(R,S)-3-Oxo-tetrahydro-thiopyran-2-
carboxylic acid ethyl ester 
III/35c2 2.2:504 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31594 C8H12O3S 
188.24 
O 
+ 
O (4aS*,8aS*)-4a,5,6,7,8,8a-Hexahydro-
benzo[1,4]oxathiine 4,4-dioxide 
III/35e 2.2.5:4187 
S S 
O O O O 
31595 C8H12O3S2 
220.31 
O CH3 
SS 
2-Acetyl-[1,3]dithiolane-2-carboxylic acid 
ethyl ester 
III/35c2 2.2:505 
O 
OH5C2 
31596 C8H12O4 
172.18 O 
O 
HO (3aS,5S,6S,6aR)-5,6-Dihydroxy-5-methyl-
hexahydro-cyclopenta[b]furan-2-one 
III/35e 2.2.1:799 
HO 
31597 C8H12O4 
172.18 O 
O 
HO (3aS,5R,6R,6aR)-5,6-Dihydroxy-5-methyl-
hexahydro-cyclopenta[b]furan-2-one 
III/35e 2.2.1:800 
HO 
31598 C8H12O4 
172.18 O 
O 
HO (3aS,5S,6R,6aR)-5,6-Dihydroxy-5-methyl-
hexahydro-cyclopenta[b]furan-2-one 
III/35e 2.2.1:801 
HO 
31599 C8H12O7 
220.18 
O 
OO 
O 
O 
O 
O 
H3C CH3 
Acetic acid 5-acetoxy-3,5-dimethyl-
[1,2,4]trioxolan-3-yl ester 
III/35e 2.2.2:2730 
31600 C8H12O12RhV4 
606.85 
[(Rh-.4-COD)(V4O12)]3-III/35e 2.2.7:4922 
31601 C8H12Pb 
315.37 
CH2 
H2C Pb CH2 
H2C Tetravinyl-plumbane III/35c4 2.2:754 
31602 C8H12Pb 
315.37 Pb 
H3C CH3 
Bis-(propynyl)-dimethyllead III/35c4 2.4:3356 
31603 C8H12S 
140.25 CH2 
(R,S)-2-But-3-enyl-2,5-dihydro-thiophene III/35c2 2.2:506 
S 
+ 
CH2 
S 
31604 C8H12S8Tc2 
562.51 
See appendix No: 31604 C8H12S8Tc2 III/35c4 2.2:755 
31605 C8H12Sn 
226.87 
1112-56-7 
CH2 
H2C Sn CH2 
H2C Stannane, tetraethenyl-; 
Stannane, tetravinyl-; 
Tetravinylstannane; 
III/35c4 2.2:758 
Tin, tetravinyl-
31606 C8H12Sn 
226.87 Sn 
H3C CH3 
Bis-(propynyl)-dimethylstannane III/35c4 2.4:3357 
31607 C8H12Te 
235.78 
CH2 
H2C Te CH2 
H2C (Trivinyl-.4-tellanyl)-ethene III/35c4 2.2:759 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31608 C8H13BClP 
186.43 P 
BH3 
Cl 
p-Chlorophenyl-dimethylphosphane -
borane (1:1) 
III/35a 2.2:764 
31609 C8H13ClF2O2 
214.64 O 
FA FB 
CH3 
(R,S)-5-Chloro-6,6-difluoro-heptanoic acid 
methyl ester 
III/35b 2.2:611 
Cl O 
+ 
O 
FA FB 
CH3 
Cl O 
31610 C8H13ClF2O2 
214.64 O 
C2H5 
FA FB 
O (R,S)-4-Chloro-5,5-difluoro-hexanoic acid 
ethyl ester 
III/35b 2.2:612 
Cl 
+ 
O 
C2H5 
FA FB 
O 
Cl 
31611 C8H13Cl2NOPtS 
437.24 Pt 
Cl 
NS 
O C8H13Cl2NOPtS III/35c4 2.2:760 
Cl 
31612 C8H13Cl2NOPtS 
437.24 Pt 
N 
ClS 
O 
Cl 
C8H13Cl2NOPtS III/35c4 2.2:761 
31613 C8H13Cl2O3P 
259.07 Cl 
Cl 
+ 
Cl 
Cl (R,S)-4,5-Dichloro-2-methoxy-5,6,6-
trimethyl-5,6-dihydro-[1,2]oxaphosphinine 
2-oxide 
III/35a 3.2:730 
O O 
P P 
O O CH3 O O CH3 
31614 C8H13D2F2O3P 
230.19 H5C2 
O 
P 
O OH5C2 
F F 
D 
D 
C8H13D2F2O3P III/35b 2.2:613 
31615 C8H13D2F2O3P 
230.19 H5C2 P 
O OH5C2 D D 
CH2 
C8H13D2F2O3P III/35b 2.2:614 
O 
F F 
31616 C8H13F 
128.19 
CH3 3-Fluoro-2,5-dimethyl-hexa-2,4-diene III/35b 2.2:616 
H3C 
CH3 
F CH3 
31617 C8H13F 
128.19 F + F 
(1S*,6R*,7S*)-7-Fluoro-1-methyl-
bicyclo[4.1.0]heptane 
III/35b 2.2:615 
31618 C8H13FO 
144.19 
O 
F 
CH3 
+ 
O 
F 
CH3 
(1R*,6R*,7S*)-7-Fluoro-1-methoxy-
bicyclo[4.1.0]heptane 
III/35b 2.2:617 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31619 C8H13FO2 
160.19 
F 
CH3 
(E)-3-Fluoro-hept-2-enoic acid methyl ester III/35b 2.2:618 
H9C4 O 
O 
31620 C8H13FO2 
160.19 
H9C4 
F 
O 
O 
CH3 
(Z)-3-Fluoro-hept-2-enoic acid methyl ester III/35b 2.2:619 
31621 C8H13FO2 
160.19 
CH3 
O 
(E)-6-Fluoro-hept-5-enoic acid methyl ester III/35b 2.2:620 
F CH3 
O 
31622 C8H13FO2 
160.19 
F 
O 
(Z)-6-Fluoro-hept-5-enoic acid methyl ester III/35b 2.2:621 
H3C CH3 
O 
31623 C8H13FO2 
160.19 
CH3 
F O 
C2H5 
O (E)-5-Fluoro-hex-4-enoic acid ethyl ester III/35b 2.2:622 
31624 C8H13FO2 
160.19 
F 
H3C O 
C2H5 
O (Z)-5-Fluoro-hex-4-enoic acid ethyl ester III/35b 2.2:623 
31625 C8H13FO2 
160.19 
H7C3 
F 
O 
O 
C2H5 
(E)-2-Fluoro-hex-2-enoic acid ethyl ester III/35b 2.2:624 
31626 C8H13FO3 
176.19 C2H5O 
O O 
H3C 
(R,S)-2-Fluoro-4-methyl-3-oxo-pentanoic 
acid ethyl ester 
III/35b 2.2:625 
FCH3 
+ 
O O 
C2H5OH3C 
FCH3 
31627 C8H13FO4 
192.19 H5C2 
O O 
C2H5 
2-Fluoro-2-methyl-malonic acid diethyl 
ester 
III/35b 2.2:627 
OO 
F 
31628 C8H13FO4 
192.19 C2H5 
O 
H7C3 
F COOH 
O 
C2H5 
O 
H7C3 
F COOH 
O 
+ 
(R,S)-2-Fluoro-2-propyl-malonic acid 
monoethyl ester 
III/35b 2.2:626 
31629 C8H13F2O3P 
226.16 H5C2 P 
O OH5C2 (1,1-Difluoro-buta-2,3-dienyl)-phosphonic 
acid diethyl ester 
III/35b 2.2:628 
O C 
F F 
CH2 
31630 C8H13F2O3P 
226.16 H5C2 P 
O OH5C2 (1,1-Difluoro-but-3-ynyl)-phosphonic acid 
diethyl ester 
III/35b 2.2:629 
O 
F F 
CH 
31631 C8H13F3NO2P 
243.16 
N(+) 
P(-)O O 
FF 
F 
C8H13F3NO2P III/35a 3.2:731 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31632 C8H13F3N2O2 
226.2 
O 
C2H5 
OF3C 
NH 
NH 
(2-Trifluoromethyl-imidazolidin-2-yl)-acetic 
acid ethyl ester 
III/35c2 2.2:508 
31633 C8H13F3O 
182.18 
H11C5 
OH 
FC 
FB 
FA H11C5 
OH 
FC 
FB 
FA 
+ 
(R,S)-1,1,2-Trifluoro-oct-1-en-3-ol III/35b 2.2:630 
31634 C8H13F3O 
182.18 CF3 
OH 
H9C4 CF3 
OH 
H9C4+ 
(R,S)-1,1,1-Trifluoro-oct-3-en-2-ol III/35b 2.2:631 
31635 C8H13F3O 
182.18 
CF3 
OH 
CF3 
OH 
+ 
(R,S)-1-Cyclohexyl-2,2,2-trifluoro-ethanol III/35b 2.2:632 
31636 C8H13F3O2 
198.18 
F3C CH3 
OH O CH3 
(R,S)-1,1,1-Trifluoro-2-hydroxy-6-methyl-
heptan-4-one 
III/35b 2.2:633 
+ 
F3C CH3 
OH O CH3 
31637 C8H13F3O3 
214.18 CH3 
OOH3C 
CF3 
O 
(R,S)-3-Methoxy-3-methyl-2-trifluoromethyl-
butyric acid methyl ester 
III/35b 2.2:634 
+ 
CH3 
OOH3C 
CF3 
O 
31638 C8H13N 
123.2 
C2H5 5-Ethyl-1-methyl-1,2-dihydro-pyridine III/35c2 2.2:509 
N 
CH3 
31639 C8H13NO 
139.19 CH3 
O 2-[1-Dimethylamino-methylidene]-
cyclopentanone 
III/35e 2.2.1:803 
N 
CH3 
31640 C8H13NO 
139.19 
CH3 4-Pyrrolidin-1-yl-but-3-en-2-one III/35e 2.2.1:802 
N 
O 
31641 C8H13NO 
139.19 
O 
NH 
CH3 2-[1-Methylamino-meth-(Z)-ylidene]-
cyclohexanone 
III/35e 2.2.1:804 
31642 C8H13NO 
139.19 
N O 
H3C 
CH3 3-Dimethylamino-cyclohex-2-enone III/35e 2.2.1:806 
31643 C8H13NO 
139.19 
NH O 
H5C2 
3-Ethylamino-cyclohex-2-enone III/35e 2.2.1:807 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31644 C8H13NO 
139.19 N 
CH3 
O 
C8H13NO III/35e 2.2.1:805 
31645 C8H13NO 
139.19 
CH3 
CH3 
O 
N 
2,4,4,6-Tetramethyl-4H-[1,3]oxazine III/35c2 2.2:511 
31646 C8H13NO 
139.19 N 
O 
CH3 
O 
+ 
N 
CH3 (1S*,5R*)-8-Methyl-8-aza-
bicyclo[3.2.1]octan-3-one 
III/35e 2.2.1:808 
31647 C8H13NO 
139.19 C2H5 
O 
N 
2-Ethyl-4,5,6,6a-tetrahydro-3aH-
cyclopentaoxazole 
III/35c2 2.2:510 
31648 C8H13NOS 
171.26 CH2 
S 
O 
N 
2-Allylsulfanyl-4,4-dimethyl-4,5-dihydro-
oxazole 
III/35c2 2.2:512 
31649 C8H13NOS2 
203.32 N S 
SO 
2,2-Dimethyl-1-(2-thioxo-thiazolidin-3-yl)-
propan-1-one 
III/35e 2.2.1:809 
31650 C8H13NOSi 
167.28 
2-Trimethylsilanyloxy-pyridine III/35b 3.2:959 
Si 
N O 
31651 C8H13NO2 
155.19 
O CH3 
H3C 
O 
NH 
C2H5 
3-Ethylaminomethylene-pentane-2,4-dione III/35e 2.2.1:811 
31652 C8H13NO2 
155.19 
18856-72-9 
O CH3 
H3C 
O 
N 
CH3 
CH3 
3-((dimethylamino)methylene)-2,4-
pentanedione; 
3-Dimethylaminomethylene-pentane-2,4-
dione 
III/35e 2.2.1:812 
31653 C8H13NO2 
155.19 
CH3O 
N 
1,3-Dimethyl-3-propyl-azetidine-2,4-dione III/35c2 2.2:517 
C3H7 
O 
31654 C8H13NO2 
155.19 
OH 
OH 
N 
2-(3-Hydroxymethyl-1-methyl-1H-pyrrol-2-
yl)-ethanol 
III/35c2 2.2:513 
CH3 
31655 C8H13NO2 
155.19 
O CH3 
O 
CH3 
NH 
2-Pyrrolidin-(2Z)-ylidene-propionic acid 
methyl ester 
III/35c2 2.2:515 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31656 C8H13NO2 
155.19 H3C 
CH3N 
H3C 
O 
O 
(3-Methoxy-furan-2-ylmethyl)-dimethylamine 
III/35c2 2.2:520 
31657 C8H13NO2 
155.19 
O 1-tert-Butyl-pyrrolidine-2,5-dione III/35e 2.2.1:813 
N 
O 
31658 C8H13NO2 
155.19 N 
O 
O 
CH3 
(Z)-3-Pyrrolidin-1-yl-acrylic acid methyl 
ester 
III/35e 2.2.1:814 
31659 C8H13NO2 
155.19 
O 
H3C 
OH 
N 
O 
H3C 
OH 
N+ 
(E)-1-((R,S)-2-Hydroxy-pyrrolidin-1-yl)-but-
2-en-1-one 
III/35c2 2.2:514 
31660 C8H13NO2 
155.19 
CH3 
H3C 
4,5-Dimethyl-3-propyl-3H-oxazol-2-one III/35c2 2.2:516 
O 
N 
H7C3 
O 
31661 C8H13NO2 
155.19 C2H5 
C2H5 
H3C 
O 
ON 
4,4-Diethyl-3-methyl-4H-isoxazol-5-one III/35c2 2.2:518 
31662 C8H13NO2 
155.19 
O 
N 
O 
CH3 
4-Morpholin-4-yl-but-3-en-2-one III/35e 2.2.1:810 
31663 C8H13NO2 
155.19 
CH3OO 
N 
(5R,7aR)-5-Methoxy-hexahydro-pyrrolizin-
3-one 
III/35c2 2.2:519 
31664 C8H13NO2S 
187.26 
O 
H3C 
O 
S 
N 
3-Methoxy-1-(2-thioxo-pyrrolidin-1-yl)-
propan-1-one 
III/35c2 2.2:521 
31665 C8H13NO3 
171.19 
H3C 
N 
CH3 
O 
O 
O 
C2H5 
4-Dimethylamino-2-oxo-but-3-enoic acid 
ethyl ester 
III/35e 2.2.1:815 
31666 C8H13NO3 
171.19 NH 
H5C2 O 
(Z)-4-Ethylamino-2-oxo-but-3-enoic acid 
ethyl ester 
III/35e 2.2.1:816 
O 
C2H5 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31667 C8H13NO3 
171.19 N 
O 
CH3 N 
O 
CH3+ 
(R,S)-1-Acetyl-pyrrolidine-2-carboxylic acid 
methyl ester 
III/35e 2.2.1:817 
O O 
CH3 CH3 
O O 
31668 C8H13NO3 
171.19 
N 
O 
O 
O 
C2H5 
4-Oxo-piperidine-1-carboxylic acid ethyl 
ester 
III/35e 2.2.1:818 
31669 C8H13NO4 
187.19 COOH 
N 
H3C CH3 
HOOC (Z)-3-Dimethylamino-hex-3-enedioic acid III/35b 3.2:960 
31670 C8H13NO4 
187.19 
H3C 
O 
O 
O 
CH3 
(Z)-2-Dimethylamino-but-2-enedioic acid 
dimethyl ester 
III/35e 2.2.1:819 
O N 
CH3H3C 
31671 C8H13N2OP 
184.18 
Ph NH 
P 
O 
NH2 
C8H13N2OP III/35a 3.2:732 
31672 C8H13N2O3P 
216.17 
NC CNO 
PH 
O 
O C8H13N2O3P III/35a 3.2:733 
31673 C8H13N3O3 
199.21 CH3 
O 
N 
NN 
2-Methyl-4-piperidin-1-yl-
[1,2,4]oxadiazolidine-3,5-dione 
III/35c2 2.2:522 
O 
O 
31674 C8H13OP 
156.16 
(3S*,5R*)-4-Methyl-4-phospha-
tricyclo[3.2.1.03,6]octane 4-oxide 
III/35e 2.2.4:3765 
+ 
P P 
O O 
31675 C8H13O2P 
172.16 
P 
O 
O 
(1S,2R,5R)-2-Methyl-9-oxa-2-phospha-
tricyclo[3.3.1.01,5]nonane 2-oxide 
III/35a 3.2:734 
31676 C8H13O3PS 
220.23 
13640-95-4 S P 
O O C2H5 
O 
C2H5 
Thiophen-2-yl-phosphonic acid diethyl 
ester 
III/35e 2.2.4:3766 
31677 C8H13P 
140.16 P CH3 P CH3+ 
(1S*,5R*)-8-Methyl-8-phospha-
bicyclo[3.2.1]oct-6-ene 
III/35a 3.2:735 
31678 C8H14BBr 
200.91 
22086-45-9 B Br 
9-Borabicyclo[3.3.1]nonane, 9-bromo-; 
B-bromo-9-BBN 
III/35a 2.2:765 
31679 C8H14BCl 
156.46 
22086-34-6 B Cl 
9-Borabicyclo[3.3.1]nonane, 9-chloro- III/35a 2.2:766 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31680 C8H14BF 
140.01 
B F 
9-Borabicyclo[3.3.1]nonane, 9-fluoro- III/35a 2.2:767 
31681 C8H14BI 
247.91 
70145-42-5 B I 
9-Borabicyclo[3.3.1]nonane, 9-iodo- III/35a 2.2:768 
31682 C8H14BN 
135.01 
Ph 
N 
BH3 
Phenyldimethylamine - borane (1:1) III/35a 2.2:769 
31683 C8H14BN3 
163.03 
B 
N 
CH3 
N 
C8H14BN3 III/35a 2.2:770 
N 
CH3 
31684 C8H14BP 
151.98 
Ph 
P 
BH3 
Phenyldimethylphosphane - borane (1:1) III/35a 2.2:771; 
III/35c4 2.4:3358 
31685 C8H14B2N4 
187.85 
(delocalized system) 
N(+)N(+) 
BH2(-) 
C8H14B2N4 III/35a 2.2:772 
NN 
BH2(-) 
CH3H3C 
31686 C8H14B2N4 
187.85 
(delocalized system) 
N(+)N(+) 
BH2(-) 
CH3 
C8H14B2N4 III/35a 2.2:773 
NN 
BH2(-) 
H3C 
31687 C8H14BrF2O3P 
307.07 H5C2 
O 
P 
OH5C2 O 
F F 
CH2 
Br 
(3-Bromo-1,1-difluoro-but-3-enyl)-
phosphonic acid diethyl ester 
III/35b 2.2:635 
31688 C8H14ClFO 
180.65 C2H5H7C3 
Cl 
FOH 
C2H5H7C3 
Cl 
FOH 
+ 
(E)-(R,S)-5-Chloro-6-fluoro-oct-5-en-4-ol III/35b 2.2:636 
31689 C8H14ClNO 
175.66 
O 4-Ethyl-2,2-dimethyl-furan-3-ylidene-
ammonium chloride 
III/35c2 2.2:523 
Cl(-)H2N(+) 
C2H5 
31690 C8H14ClNOPtS 
402.8 
Cl 
NPtS 
O 
C8H14ClNOPtS III/35c4 2.2:762 
31691 C8H14ClNO2 
191.66 
C2H5 
C2H5O 
O 
NH 
Cl 
(3R,4R)-3-Chloro-4-(1-ethyl-propoxy)-
azetidin-2-one 
III/35c2 2.2:524 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31692 C8H14ClNO3S 
239.72 
O 
O 
CH3 
ClO 
S 
NH 
O 
O 
CH3 
ClO 
S 
NH+ 
(R,S)-4-tert-Butyl-6-chloro-5-methyl-3,4-
dihydro-[1,2,3]oxathiazine 2,2-dioxide 
III/35c2 2.2:525 
31693 C8H14ClNO4 
223.65 OO 
CH3 1-(5-Chloromethyl-3,5-dimethyl-
[1,2,4]trioxolan-3-yl)-ethanone O-methyl-
III/35e 2.2.2:2731 
O 
N 
O 
Cl CH3 
oxime; 
1-(5-Chloromethyl-3,5-dimethyl-
[1,2,4]trioxolan-3-yl)-ethanone O-methyl-
oxime 
31694 C8H14ClNO4 
223.65 
O(-) 
O 
O 
O 
Cl 
CH3 
N(+) 
(R,S)-1-Methyl-1,2,3,5,6,7-hexahydro-
pyrrolizinylium; perchlorate 
III/35c2 2.2:526 
+ 
O(-) 
O 
O 
O 
Cl 
CH3 
N(+) 
31695 C8H14Cl2OSi 
225.19 
O 
Si 
((Z)-4,4-Dichloro-1-methyl-buta-1,3-
dienyloxy)-trimethyl-silane 
III/35e 2.2.2:2732 
Cl 
CH3 
Cl 
31696 C8H14Cl2O2S 
245.17 S 
O O (1R,2R)-1-Chloro-2-(2-chloro-
ethanesulfonyl)-cyclohexane 
III/35e 2.2.5:4188 
Cl 
Cl 
31697 C8H14Cl2Pd2 
393.9 
(delocalized system) 
Pd(+) 
Cl 
Pd(+) 
Cl 
CH2(-) 
CH2CH2(-) 
CH2 
C8H14Cl2Pd2 III/35c4 2.2:763 
31698 C8H14F2O2 
180.19 H9C4 
O 
C2H5 
2,2-Difluoro-hexanoic acid ethyl ester III/35b 2.2:638 
O 
F F 
31699 C8H14F6O3P2 
334.13 F3C 
P 
CF3 
P 
O O C3H7 
O 
C3H7 
C8H14F6O3P2 III/35a 3.2:736 
31700 C8H14F6O3P2 
334.13 
CH3 
H3C 
C8H14F6O3P2 III/35a 3.2:737 
O O CH3 
F3C 
P 
P 
O CH3 
CF3 
31701 C8H14KO4P7 
430.11 
P 
P 
P 
P 
P(-) 
P 
P 
O 
O 
H5C2 
O 
O 
C2H5K(+) 
C8H14KO4P7 III/35c4 2.2:764 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31702 C8H14N2O 
154.21 O 
H3C 4-(2-Methoxy-ethyl)-3,5-dimethyl-1H-
pyrazole 
III/35c2 2.2:527 
CH3N 
NH 
CH3 
31703 C8H14N2OS 
186.28 
NH 
N 
H3C 
S 
O 
C4H9 
NH 
N 
H3C 
S 
O 
C4H9 
+ 
(R,S)-5-Butyl-3-methyl-2-thioxo-
imidazolidin-4-one 
III/35e 2.2.1:820 
31704 C8H14N2OS 
186.28 
NH 
NH3C 
S 
O 
CH3 
H3C 
NH 
NH3C 
S 
O 
CH3 
H3C 
+ 
(R,S)-5-Isobutyl-3-methyl-2-thioxo-
imidazolidin-4-one 
III/35e 2.2.1:821 
31705 C8H14N2O2 
170.21 
O 
H5C2 NH O 
N 
N-(2,2-Dimethyl-4-oxo-azetidin-1-yl)-
propionamide 
III/35c2 2.2:530 
31706 C8H14N2O2 
170.21 
C2H5O 
C2H5O 
N 
N 
1-Diethoxymethyl-1H-imidazole III/35c2 2.2:529 
31707 C8H14N2O2 
170.21 
38629-19-5 
H5C2 
O 
C2H5 
O 
N 
N 
3,6-Diethoxy-2,5-dihydro-pyrazine; 
2,5-diethoxy-3,6-dihydropyrazine 
III/35c2 2.2:528 
31708 C8H14N2O2 
170.21 
CH3 
CH3NH 
NH O 
O (R,S)-3-Isobutyl-piperazine-2,5-dione III/35e 2.2.1:822 
+ 
CH3NHO 
CH3NH O 
31709 C8H14N2O2S 
202.27 
O 
CH3S 
O 
H3C 
H3C 
N 
N 
Methanesulfinic acid 3,5-dimethyl-6,7-
dihydro-[1,2]diazepin-1-yl ester 
III/35c2 2.2:531 
31710 C8H14N2S 
170.28 
NH 
1,4,4,6-Tetramethyl-3,4-dihydro-1H-
pyrimidine-2-thione 
III/35c2 2.2:532 
CH3S N 
CH3 
31711 C8H15N3O2 
185.22 N 
N OH C8H15N3O2 III/35b 3.2:961 
NH(+) 
O(-) 
31712 C8H14N3PS 
215.26 
1,3-Dimethyl-2-pyrrol-1-yl-
[1,3,2]diazaphospholidine 2-sulfide 
III/35b 3.2:962 
N 
S 
N 
P 
NH3C CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31713 C8H14N3PSe 
262.15 
1,3-Dimethyl-2-pyrrol-1-yl-
[1,3,2]diazaphospholidine 2-selenide 
III/35b 3.2:963 
N 
Se 
H3C 
N 
P 
N CH3 
31714 C8H14N4PtS4 
489.56 
H3C 
H3C 
S 
S 
Pt 
S 
S 
NH 
N NH 
CH3 
N 
CH3 
C8H14N4PtS4 III/35c4 2.2:765 
31715 C8H14O 
126.2 
H3C 
O 
CH3 CH3 
CH3 
2-Methyl-1-(2-methyl-propenyloxy)-propene III/35e 2.2.2:2733 
31716 C8H14O 
126.2 
H2C 
CH3O 
CH3 CH3 
CH3 
2-Isopropenyloxy-3-methyl-but-2-ene III/35e 2.2.2:2734 
31717 C8H14O 
126.2 
O 
CH2 CH2 
O 
+ 
(R,S)-2-Allyl-2-methyl-tetrahydro-furan III/35c2 2.2:533 
31718 C8H14O 
126.2 
H5C2 
C2H5 
O 
2,5-Diethyl-2,5-dihydro-furan III/35c2 2.2:534 
31719 C8H14O 
126.2 
19096-89-0 
O 
CH3 (methoxymethylene)cyclohexane; 
Methoxymethylene-cyclohexane 
III/35e 2.2.2:2735 
31720 C8H14O 
126.2 
OH OH 
+ 
(1R*,2R*,4S*)-2-Methyl-
bicyclo[2.2.1]heptan-2-ol 
III/35e 2.2.2:2738 
31721 C8H14O 
126.2 
OH OH 
+ 
(1R*,2S*,4S*)-2-Methyl-
bicyclo[2.2.1]heptan-2-ol 
III/35e 2.2.2:2739 
31722 C8H14O 
126.2 
50438-50-1 
O 
CH3 1-Methoxy-cycloheptene; 
1-methoxycycloheptene 
III/35e 2.2.2:2736 
31723 C8H14O 
126.2 
286-62-4 
O 
Cyclooctane, 1,2-epoxy-; 
Cyclooctene epoxide; 
1,2-Epoxycyclooctane; 
9-Oxabicyclo[6.1.0]nonane 
III/35e 2.2.2:2737 
31724 C8H14OS 
158.26 H2C 
O 
CH2S 
4-(But-3-ene-1-sulfinyl)-but-1-ene III/35e 2.2.5:4189 
31725 C8H14OS 
158.26 
OS 
H (3aR,7aR)-Octahydro-benzo[c]thiophene 2oxide; 
(3aR,7aR)-Octahydro-benzo[c]thiophene 2oxide 
III/35e 2.2.5:4190 
H 
31726 C8H14OS 
158.26 
S 
O 
S 
O 
+ 
(4aS*,8aS*)-Octahydro-benzo[1,4]oxathiine III/35e 2.2.2:2740 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31727 C8H14OS2 
190.33 
O 
H3C 
C3H7 
S 
S 
1-(2-Propyl-[1,3]dithiolan-2-yl)-ethanone III/35c2 2.2:535 
31728 C8H14O2 
142.2 
O O 
CH3 
5,5-Dimethyl-hexane-2,4-dione III/35e 2.2.1:825 
31729 C8H14O2 
142.2 
OH 
HO 
+ 
OH 
HO (1S*,2R*,4S*,5S*)-1-Methyl-
bicyclo[2.2.1]heptane-2,5-diol 
III/35e 2.2.2:2742 
31730 C8H14O2 
142.2 
O 
O 
1,4-Dioxa-spiro[4.5]decane III/35e 2.2.2:2741 
31731 C8H14O2 
142.2 
O 
O 
+ 
O 
O 
(4aR*,8aR*)-Hexahydro-benzo[1,3]dioxine III/35e 2.2.2:2743 
31732 C8H14O2 
142.2 
O 
O 
+ 
O 
O 
(4aR*,8aS*)-Hexahydro-benzo[1,3]dioxine III/35e 2.2.2:2744 
31733 C8H14O2 
142.2 
O 
O 
+ 
O 
O 
(1S*,6R*)-7,8-Dioxa-bicyclo[4.2.2]decane III/35e 2.2.2:2745 
31734 C8H14O2S 
174.26 
OO 
C4H9 
S 
+ 
OO 
C4H9 
S 
(R,S)-2-Butyl-2,5-dihydro-thiophene 1,1-
dioxide 
III/35c2 2.2:536 
31735 C8H14O2S 
174.26 
OO 
C2H5 
S + 
OO 
C2H5 
S 
(R,S)-5-Ethyl-2,2-dimethyl-2,5-dihydro-
thiophene 1,1-dioxide 
III/35c2 2.2:537 
31736 C8H14O2S 
174.26 
H (4aS,7aR)-Octahydro-
cyclopenta[b]thiopyran 1,1-dioxide; 
III/35e 2.2.5:4191 
(4aS,7aR)-Octahydro-
S 
cyclopenta[b]thiopyran 1,1-dioxide 
H 
O O 
31737 C8H14O2S 
174.26 
S 
H (4aS,7aS)-Octahydro-
cyclopenta[b]thiopyran 1,1-dioxide; 
(4aS,7aS)-Octahydro-
cyclopenta[b]thiopyran 1,1-dioxide 
III/35e 2.2.5:4192 
H 
O O 
31738 C8H14O2S 
174.26 
S 
H 
O 
(3aS,7aS)-Octahydro-benzo[c]thiophene 
2,2-dioxide; 
(3aS,7aS)-Octahydro-benzo[c]thiophene 
III/35e 2.2.5:4193 
O 2,2-dioxide 
H 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31739 C8H14O2S2 
206.33 H9C4 
S 
S 
O 
O 
(R,S)-3-Butylsulfanyl-2,3-dihydro-thiophene 
1,1-dioxide 
III/35e 2.2.5:4194 
+ 
H9C4 
S 
S 
O 
O 
31740 C8H14O2S2 
206.33 
S S (4aS*,8aS*)-Octahydro-benzo[1,4]dithiine 
1,1-dioxide 
III/35e 2.2.5:4195 
+ 
S S 
O O O O 
31741 C8H14O3 
158.19 
CH3 
O 
4-Methyl-3-oxo-pentanoic acid ethyl ester III/35e 2.2.1:826 
H3C C2H5 
O O 
31742 C8H14O3 
158.19 H9C4 
O 
O 
O 
+ H9C4 
O 
O 
O 
(R,S)-3-Butoxy-dihydro-furan-2-one III/35c2 2.2:538 
31743 C8H14O3 
158.19 
OH 
HO 
HO + 
HO 
HO 
OH 
(1R*,2R*,4S*,5R*)-2-Methyl-
bicyclo[2.2.1]heptane-2,5,7-triol 
III/35e 2.2.2:2746 
31744 C8H14O3S 
190.26 
62015-76-3 
S 
O 
O O 
+ 
S 
O 
O O 
1,4-Benzoxathiin, octahydro-, 4,4-dioxide, 
(4aR*,8aR*)-; 
1,4-Benzoxathiin, octahydro-, 4,4-dioxide, 
trans-; 
trans-Octahydro-1,4-benzoxathiin 4,4-
dioxide; 
III/35e 2.2.5:4196 
(4aS*,8aS*)-Octahydro-benzo[1,4]oxathiine 
4,4-dioxide 
31745 C8H14O4Te 
301.79 Te 
O 
O 
CH3 
O 
O CH3 
Acetic acid 1-acetoxy-tetrahydro-1.4-
tellurophen-1-yl ester 
III/35c4 2.2:766 
31746 C8H14O6Si 
234.28 
O 
SiOH3C 
O 
O 
H3C 
O 
O 
CH3 
(methyldiacetyloxysilyl)methylacetate III/35e 2.2.1:828 
31747 C8H14Pt 
305.27 (-) 
Pt(+) 
H3C 
CH3 
CH3 
Trimethyl-cyclopentadienyl-platinum III/35c4 2.2:767 
31748 C8H15As 
186.13 
H2C As CH2 
C4H9 Butyl-divinyl-arsane III/35c4 2.2:768 
31749 C8H15AuBrF6P 
533.04 Au 
CF3Br 
P CF3 
H5C2 
C2H5 
C2H5 
C8H15AuBrF6P III/35b 2.2:639 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31750 C8H15AuBrF6P 
533.04 Au 
CF3Br 
PF3C 
C2H5 
H5C2 C2H5 
C8H15AuBrF6P III/35b 2.2:640 
31751 C8H15AuF6IP 
580.04 Au 
CF3I 
P CF3 
H5C2 
C2H5 
C2H5 
C8H15AuF6IP III/35b 2.2:641 
31752 C8H15AuF6IP 
580.04 Au 
CF3I 
PF3C 
C2H5 
H5C2 C2H5 
C8H15AuF6IP III/35b 2.2:642 
31753 C8H15B 
122.02 
B 
+ 
B C8H15B III/35a 2.2:774 
31754 C8H15BO 
138.01 
63366-65-4 
B OH 
9-Bora-bicyclo[3.3.1]nonan-9-ol; 
9-Borabicyclo[3.3.1]nonane, 9-hydroxy-
III/35e 2.2.6:4446 
31755 C8H15B8N 
211.7 
See appendix No: 31755 C8H15B8N III/35c4 2.2:769 
31756 C8H15BrF2Si 
257.19 
F F 
Br Si C2H5H5C2 
((Z)-2-Bromo-1,2-difluoro-vinyl)-triethyl-
silane 
III/35b 2.2:643 
C2H5 
31757 C8H15BrO2 
223.11 
23877-12-5 Br 
O 
2-Bromo-2-methyl-propionic acid tert-butyl 
ester; 
Propanoic acid, 2-bromo-2-methyl-, 1,1-
III/35e 2.2.1:829 
O dimethylethyl ester; 
tert-butyl 2-bromo-2-methylpropionate; 
tert-Butyl 2-bromoisobutyrate 
31758 C8H15ClFO5P 
276.63 
O 
O 
C2H5 
C2H5P 
O O 
O 
H5C2 
(R,S)-Chloro-(diethoxy-phosphoryl)-fluoroacetic 
acid ethyl ester 
III/35a 3.2:738 
ClF 
+ 
O C2H5O O 
O 
C2H5P 
O 
H5C2 
ClF 
31759 C8H15ClO3S 
226.72 S 
O O (1R,2R)-2-(2-Chloro-ethanesulfonyl)-
cyclohexanol 
III/35e 2.2.5:4197 
Cl 
OH 
31760 C8H15Cl2O5P 
293.08 
Cl 
O 
O 
C2H5 
C2H5P 
O O 
O 
Cl 
H5C2 
Dichloro-(diethoxy-phosphoryl)-acetic acid 
ethyl ester 
III/35a 3.2:739 
31761 C8H15Cl3GeO2 
322.2 Ge 
C2H5 
H5C2 C2H5 
Cl3C 
O 
O 
C8H15Cl3GeO2 III/35e 2.2.1:830 
31762 C8H15Cl3O2Si 
277.65 Si 
C2H5 
H5C2 C2H5 
Cl3C 
O 
O 
C8H15Cl3O2Si III/35e 2.2.1:831 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31763 C8H15Cl4O3P 
331.99 
ClCl 
O 
H3C PH 
O 
CH3 
Cl 
O 
Cl 
CH3 
CH3 
C8H15Cl4O3P III/35a 3.2:740 
31764 C8H15FO 
146.2 H2C 
OH (4R,5S)-5-Fluoro-oct-7-en-4-ol III/35b 2.2:644 
C3H7 
F 
31765 C8H15FO2 
162.2 
C6H13OF 
O Heptanoic acid fluoromethyl ester III/35b 2.2:645 
31766 C8H15FO2 
162.2 
OF Acetic acid (R,S)-1-fluoromethyl-1-methyl-
butyl ester 
III/35b 2.2:646 
CH3OH7C3 
+ 
CH3OH7C3 
OF 
31767 C8H15F2ISi 
304.19 
F 
FSi 
I 
H5C2 C2H5 
((E)-1,2-Difluoro-2-iodo-vinyl)-triethyl-silane III/35b 2.2:647 
C2H5 
31768 C8H15F2O3P 
228.17 H5C2 P 
OH5C2 O 
CH2 
(1,1-Difluoro-but-3-enyl)-phosphonic acid 
diethyl ester 
III/35b 2.2:648 
O 
F F 
31769 C8H15F2O5P 
260.17 
F 
O 
O 
C2H5 
C2H5P 
O O 
O 
F 
H5C2 
(Diethoxy-phosphoryl)-difluoro-acetic acid 
ethyl ester 
III/35a 3.2:741 
31770 C8H15F3GeO2 
272.84 Ge 
C2H5 
H5C2 C2H5 
F3C 
O 
O 
C8H15F3GeO2 III/35e 2.2.1:832 
31771 C8H15F3O 
184.2 
H13C6 CF3 
OH 
H13C6 CF3 
OH 
+ 
(R,S)-1,1,1-Trifluoro-octan-2-ol III/35b 2.2:649 
31772 C8H15F3O2 
200.2 
F3C CH3 
OH OH CH3 (2R,4R)-1,1,1-Trifluoro-6-methyl-heptane-
2,4-diol 
III/35b 2.2:650 
31773 C8H15F3O2Si 
228.28 Si 
C2H5 
H5C2 C2H5 
F3C 
O 
O 
C8H15F3O2Si III/35e 2.2.1:833 
31774 C8H15F3S 
200.26 H15C7 
S 
CF3 
1-Trifluoromethylsulfanyl-heptane III/35b 2.2:652 
31775 C8H15N 
125.21 C 
H3C 
H3C 
N 
C4H9 Butyl-(2-methyl-propenylidene)-amine III/35b 3.2:964 
31776 C8H15N 
125.21 H3C N 
C4H9 [(E)-But-2-en-(E)-ylidene]-butyl-amine III/35b 3.2:966 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31777 C8H15N 
125.21 H3C 
CH3 CH3 
CH3N 
1-Isopropyl-2-isopropylidene-aziridine III/35c2 2.2:539 
31778 C8H15N 
125.21 N 
CH3 
CH3 1-(2-Methyl-propenyl)-pyrrolidine III/35b 3.2:965 
31779 C8H15NO 
141.21 
H3C O 
CH3 
(Z)-4-Isobutylamino-but-3-en-2-one III/35e 2.2.1:834 
NH 
CH3 
31780 C8H15NO 
141.21 
H3C 
O 
NH 
CH3 
CH3 (E)-4-Isobutylamino-but-3-en-2-one III/35e 2.2.1:835 
31781 C8H15NO 
141.21 
(Z)-4-tert-Butylamino-but-3-en-2-one III/35e 2.2.1:836 
NH 
H3C O 
31782 C8H15NO 
141.21 
H3C 
O 
NH 
(E)-4-tert-Butylamino-but-3-en-2-one III/35e 2.2.1:837 
31783 C8H15NO 
141.21 
H3C 
O 
N 
C2H5 
C2H5 
4-Diethylamino-but-3-en-2-one III/35e 2.2.1:838 
31784 C8H15NO 
141.21 
H3C O (Z)-4-Propylamino-pent-3-en-2-one III/35e 2.2.1:839 
NH 
C3H7 
CH3 
31785 C8H15NO 
141.21 
H3C O (Z)-4-Isopropylamino-pent-3-en-2-one III/35e 2.2.1:840 
NH CH3 
CH3 CH3 
31786 C8H15NO 
141.21 
H5C2 
O 
NH 
C2H5 
CH3 
(E)-1-Ethylamino-2-methyl-pent-1-en-3-one III/35e 2.2.1:841 
31787 C8H15NO 
141.21 
H5C2 
O 
C2H5 
NH 
CH3 
(Z)-1-Ethylamino-2-methyl-pent-1-en-3-one III/35e 2.2.1:842 
31788 C8H15NO 
141.21 
H3C 
O 
N 
CH3 
CH3 
CH3 
1-Dimethylamino-4-methyl-pent-1-en-3-one III/35e 2.2.1:843 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31789 C8H15NO 
141.21 
(Z)-4,4-Dimethyl-1-methylamino-pent-1-en-
3-one 
III/35e 2.2.1:844 
O NH 
CH3 
31790 C8H15NO 
141.21 
CH3 N-Isopropyl-4-piperidon; 
1-(isopropyl)-4-piperidone; 
III/35e 2.2.1:845 
5355-68-0 N CH3 
1-Isopropyl-piperidin-4-one; 
4-Piperidinone, 1-(1-methylethyl)-
O 
31791 C8H15NO 
141.21 N 
O 
C2H5 1-Ethyl-azepan-4-one III/35e 2.2.1:846 
31792 C8H15NO 
141.21 
1074-51-7 
N 
OH 
Cyclooctanone oxime III/35e 2.2.3:3527 
31793 C8H15NO 
141.21 
O C8H15NO III/35e 2.2.1:848 
N 
H3C 
31794 C8H15NO 
141.21 O 
H3C C8H15NO III/35b 3.2:968 
N 
+ 
H3C 
O 
N 
31795 C8H15NO 
141.21 
935-30-8 
NH 
O 
1-Aza-2-cyclononanone; 
Azonan-2-one; 
2H-Azonin-2-one, octahydro-; 
III/35b 3.2:967; 
III/35e 2.2.1:847 
.-Caprylolactam 
31796 C8H15NO 
141.21 
O 
NH 
1-Oxa-4-aza-spiro[4.5]decane III/35e 2.2.2:2747 
31797 C8H15NO2 
157.21 N 
3-(4,4-Dimethyl-4,5-dihydro-oxazol-2-yl)-
propan-1-ol 
III/35c2 2.2:540 
OH 
O 
31798 C8H15NO2 
157.21 
H3C 
H3C 
C2H5 
O 
O 
N 
(S)-2-Ethoxy-4-isopropyl-4,5-dihydro-
oxazole 
III/35c2 2.2:541 
31799 C8H15NO2 
157.21 
16486-81-0 O 
N 
O CH2 4-(2-Vinyloxy-ethyl)-morpholine III/35e 2.2.2:2748 
31800 C8H15NO3Si 
201.29 
SiO O 
O 
H2C C8H15NO3Si III/35b 3.2:969 
N 
31801 C8H15NO4 
189.21 
O 
OO 
CH3 
N 
O 
CH3 
1-((R,S)-3,5,5-Trimethyl-[1,2,4]trioxolan-3-
yl)-ethanone O-methyl-oxime 
III/35e 2.2.2:2749 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31802 C8H15NO6 
221.21 
OH 
NHH3C OH 
C8H15NO6 III/35b 3.2:970 
OHO OHO 
OH 
NHH3C OH 
+ 
OHO OHO 
31803 C8H15NO6 
221.21 
OH 
NHH3C OH 
C8H15NO6 III/35b 3.2:971 
OHO OHO 
OH 
NHH3C OH 
+ 
OHO OHO 
31804 C8H16N2O 
156.22 N 
H3C 2,2,4,4,5-Pentamethyl-2,4-dihydro-
imidazole 3-oxide 
III/35b 3.2:972 
NH(+) 
O(-) 
31805 C8H15N3OS 
201.29 
NH N 
CH3 
O 
C8H15N3OS III/35b 3.2:973 
N 
S 
31806 C8H15O 
127.2 
OH(+) Cyclooctylidene-oxonium III/35e 2.2.1:849 
31807 C8H15O2P 
174.18 CH3 
O 
PH O C8H15O2P III/35a 3.2:742 
31808 C8H15O4P 
206.18 
O 
O O C2H5 
C8H15O4P III/35a 3.2:743 
P C2H5H3C 
O 
31809 C8H15PS2 
206.31 
2-Ethyl-3,3,5-trimethyl-3H-
[1,2]thiaphosphole 2-sulfide 
III/35a 3.2:744 
P C2H5 
SH3C S 
31810 C8H16B 
123.02 
BH2(-) 
9-Borabicyclo[3.3.1]nonane (1-) III/35a 2.2:775 
31811 C8H16BN 
137.03 
N 
B 
C8H16BN III/35a 2.2:776 
31812 C8H16BNa 
146.01 
BH2(-)Na(+) 
9-Borabicyclo[3.3.1]nonane (1-), sodium 
salt 
III/35a 2.2:775 
31813 C8H16B2Br2 
293.64 B 
C2H5 
Br 
B 
Br 
H5C2 
C2H5 
C8H16B2Br2 III/35a 2.2:777 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31814 C8H16B2O5 
213.83 
See appendix No: 31814 C8H16B2O5 III/35a 2.2:778 
31815 C8H16B4 
155.46 
Me4B4C4H4 III/35a 2.2:779 
31816 C8H16B8Ru 
299.77 
1,2,4-(h-C6H6)RuC2B8H10 III/35a 2.2:780 
31817 C8H16BrO4P 
287.09 P 
O O C2H5 
O 
C2H5H3C 
Br ((R,S)-2-Bromo-3-oxo-butyl)-phosphonic 
acid diethyl ester 
III/35a 3.2:745 
O 
+ 
O 
P 
O O C2H5 
O 
C2H5H3C 
Br 
31818 C8H16ClN 
161.67 
NH3(+) 
Cl(-) 
Bicyclo[2.2.2]oct-1-yl-ammonium chloride III/35b 3.2:974 
31819 C8H16ClNO3Si 
237.76 O 
OCl 
O Si 
C8H16ClNO3Si III/35b 3.2:975 
N 
31820 C8H16ClO5P 
258.64 
O 
O 
C2H5 
C2H5P 
O O 
O 
H5C2 
(R,S)-Chloro-(diethoxy-phosphoryl)-acetic 
acid ethyl ester 
III/35a 3.2:746 
Cl 
Cl 
O 
O 
C2H5 
C2H5P 
O O 
O 
H5C2 
+ 
31821 C8H16Cl2GeO2 
287.76 
O 
O 
Ge 
C2H5 
H5C2 C2H5 
Cl 
Cl 
C8H16Cl2GeO2 III/35e 2.2.1:850 
31822 C8H16Cl2N4PtS4 
562.48 
S 
S 
Pt 
S 
S 
N 
CH3 
N(+) 
CH3 
N 
H3C 
N(+) 
H3C 
Cl(-)Cl(-) 
H 
H 
H 
H 
C8H16Cl2N4PtS4 III/35c4 2.2:770 
31823 C8H16Cl4N5O4P3 
480.98 
O 
O 
C2H5O 
O 
H5C2 [4,4,6,6-Tetrachloro-2-
(ethoxycarbonylmethyl-amino)-2.5,4.5,6.5-
III/35a 3.2:747 
P 
NH NH [1,3,5,2,4,6]triazatriphosphinin-2-ylamino]-
acetic acid ethyl ester 
N N 
P 
N 
Cl 
ClCl 
Cl P 
31824 C8H16FOP 
178.18 
H3C 1-Fluoro-2,2,3,4,4-pentamethyl-
phosphetane 1-oxide 
III/35a 3.2:748 
P 
O 
F 
31825 C8H16FO3P 
210.18 CH3 
O 
P 
O CH2 
F 
O CH3 
CH3 
H3C 
(1-Fluoro-vinyl)-phosphonic acid 
diisopropyl ester 
III/35a 3.2:749; 
III/35b 2.2:653 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31826 C8H16FO5P 
242.18 
2356-16-3 
H5C2 O P 
O O 
H5C2 
O 
O 
F 
C2H5 H5C2 O P 
O O 
H5C2 
O 
O 
F 
C2H5+ 
(R,S)-(Diethoxy-phosphoryl)-fluoro-acetic 
acid ethyl ester; 
triethylphosphonofluoroacetate 
III/35a 3.2:750; 
III/35b 2.2:654 
31827 C8H16F2IO4P 
372.08 OPHO 
C2H5O O C2H5 ((R,S)-1,1-Difluoro-4-hydroxy-3-iodo-butyl)phosphonic 
acid diethyl ester 
III/35b 2.2:655 
I F F 
+ 
OPHO 
C2H5 
I F F 
O O C2H5 
31828 C8H16F2O 
166.21 O 
F (R,S)-2-Fluoro-1-(2-fluoro-2-methyl-
propoxy)-butane 
III/35b 2.2:656 
C2H5F 
+ 
F 
O 
C2H5F 
31829 C8H16F2Si 
178.29 
F 
FSiH5C2 
C2H5 
C2H5 
((Z)-1,2-Difluoro-vinyl)-triethyl-silane III/35b 2.2:657 
31830 C8H16F2Si 
178.29 
F 
SiH5C2 
C2H5 
F ((E)-1,2-Difluoro-vinyl)-triethyl-silane III/35b 2.2:658 
C2H5 
31831 C8H16F3NO 
199.21 
F3C CH3 
CH3OH NH2 (2R,4R)-4-Amino-1,1,1-trifluoro-6-methyl-
heptan-2-ol 
III/35b 2.2:659 
31832 C8H16F3NO 
199.21 
F3C CH3 
CH3OH NH2 (2R,4S)-4-Amino-1,1,1-trifluoro-6-methyl-
heptan-2-ol 
III/35b 2.2:660 
31833 C8H16NOP 
173.19 H3C P 
O 
CH3CH3 
CH3 
CN (Diisopropyl-phosphinoyl)-acetonitrile III/35a 3.2:751 
31834 C8H16N2 
140.23 C3H7 
H7C3 N 
N N-but-(E)-ylidene-N'-butylidene-hydrazine III/35b 3.2:977 
31835 C8H16N2 
140.23 N 
NH3C 
CH3 
CH3 
CH3 
N-[2-methyl-prop-(E)-ylidene]-N'-[2-methyl-
propylidene]-hydrazine 
III/35b 3.2:978 
31836 C8H16N2 
140.23 N N 
[1,1']Bipyrrolidinyl III/35b 3.2:976 
31837 C8H16N2O 
156.22 N 
H3C 2,2,4,5,5-Pentamethyl-2,5-dihydro-
imidazol-1-ol 
III/35b 3.2:979 
39753-73-6 
N 
OH 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31838 C8H16N2O 
156.22 
NN 
O 
CH3 
N 
CH3 
+ 
N 
O 
C8H16N2O III/35b 3.2:980 
31839 C8H16N2O3 
188.22 
O 
NH 
COOH CH3 
CH3 
H2N 
(R,S)-2-(2-Amino-acetylamino)-4-methyl-
pentanoic acid 
III/35e 2.2.1:851 
+ 
O 
NH 
COOH CH3 
CH3 
H2N 
31840 C8H16N3P 
185.21 NN 
Hexahydro-2a,5a,8a-triaza-8b-phospha-
acenaphthylene 
III/35a 3.2:752 
P 
N 
31841 C8H16O 
128.21 
O 
CH2 
H3C 
2-Methoxy-4,4-dimethyl-pent-1-ene III/35e 2.2.2:2750 
31842 C8H16O 
128.21 
C2H5 
C2H5 
O 
CH2 
H3C 
3-Ethyl-2-methoxy-pent-1-ene III/35e 2.2.2:2751 
31843 C8H16O 
128.21 
C2H5 
H5C2 
O 
CH3 
CH3 3-Ethyl-2-methoxy-pent-2-ene III/35e 2.2.2:2752 
31844 C8H16OS2 
192.34 
S 
S 
OH 
2-tert-Butyl-[1,3]dithian-5-ol III/35e 2.2.2:2753 
+ 
S 
S 
OH 
31845 C8H16OS2 
192.34 
S 
S 
OH 
2-tert-Butyl-[1,3]dithian-5-ol III/35e 2.2.2:2754 
+ 
S 
S 
OH 
31846 C8H16OSe 
207.17 
C2H5 
SeOH5C2 
H5C2 Selenoformic acid 1,1-diethyl-propyl ester III/35c4 2.2:771 
31847 C8H16O2 
144.21 H7C3 
O 
O 
C3H7 1-((E)-2-Propoxy-vinyloxy)-propane III/35e 2.2.2:2755 
31848 C8H16O2 
144.21 
OH7C3 O C3H7 1-((Z)-2-Propoxy-vinyloxy)-propane III/35e 2.2.2:2756 
31849 C8H16O2 
144.21 
CH3 
O 
H3C 
H3C 
O 
CH3 2-((Z)-2-Isopropoxy-vinyloxy)-propane III/35e 2.2.2:2757 
31850 C8H16O2 
144.21 
C2H5 
O 
H3C O C2H5 
3-((E)-2-Methoxy-vinyloxy)-pentane III/35e 2.2.2:2758 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31851 C8H16O2 
144.21 
C2H5 
OH3C O 
C2H5 3-((Z)-2-Methoxy-vinyloxy)-pentane III/35e 2.2.2:2759 
31852 C8H16O2 
144.21 
O 
O 
C2H5 
CH3 
O 
O 
C2H5 
CH3 
+ 
(2R*,6R*)-2-Ethoxy-6-methyl-tetrahydropyran 
III/35e 2.2.2:2760 
31853 C8H16O2 
144.21 
O 
O 
C2H5 
H3C (2R*,4S*)-2-Ethoxy-4-methyl-tetrahydropyran 
III/35e 2.2.2:2761 
+ 
O 
C2H5 
H3C 
O 
31854 C8H16O2 
144.21 
O 
O 
C2H5 
CH3 
O 
O 
C2H5 
CH3 
+ 
(2S*,6R*)-2-Ethoxy-6-methyl-tetrahydropyran 
III/35e 2.2.2:2762 
31855 C8H16O2 
144.21 O 
O 
CH3 
CH3 
H3C 
O 
O 
CH3 
CH3 
H3C 
+ 
(2R*,4S*,6R*)-2-Methoxy-4,6-dimethyl-
tetrahydro-pyran 
III/35e 2.2.2:2763 
31856 C8H16O2 
144.21 O 
O 
CH3 
CH3 
H3C 
O 
O 
CH3 
CH3 
H3C 
+ 
(2S*,4S*,6R*)-2-Methoxy-4,6-dimethyl-
tetrahydro-pyran 
III/35e 2.2.2:2764 
31857 C8H16O2 
144.21 
O 2-tert-Butyl-[1,3]dioxane III/35e 2.2.2:2765 
O 
31858 C8H16O2 
144.21 
O 2,2,5,5-tetramethyl-(1,3)dioxane; 
2,2,5,5-Tetramethyl-[1,3]dioxane 
III/35e 2.2.2:2768 
767-55-5 
O 
31859 C8H16O2 
144.21 
O 
O CH3 
CH3 
H3C 
2-Isopropyl-5-methyl-[1,3]dioxane III/35e 2.2.2:2766 
+ 
O CH3 
O CH3 
H3C 
31860 C8H16O2 
144.21 
O 
O CH3 
CH3 
H3C 
2-Isopropyl-5-methyl-[1,3]dioxane III/35e 2.2.2:2767 
+ 
O CH3 
O CH3 
H3C 
31861 C8H16O2S2 
208.34 H9C4 
S 
S 
O 
O 
(R,S)-3-Butylsulfanyl-tetrahydro-thiophene 
1,1-dioxide 
III/35e 2.2.5:4198 
+ 
H9C4 
S 
S 
O 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31862 C8H16O3 
160.21 
O CH3 
O 
H3C 2-Isopropyl-5-methoxy-[1,3]dioxane III/35e 2.2.2:2769 
O CH3 
+ 
O CH3 
O 
H3C 
O CH3 
31863 C8H16O3 
160.21 
O CH3 
O 
H3C 2-Isopropyl-5-methoxy-[1,3]dioxane III/35e 2.2.2:2770 
O CH3 
+ 
O CH3 
O 
H3C 
O CH3 
31864 C8H16O3 
160.21 O 
O O 
CH3H3C 
O 
O O 
CH3H3C 
+ 
(2R*,6R*)-2-Methoxy-4,4,6-trimethyl-
[1,3]dioxane 
III/35e 2.2.2:2771 
31865 C8H16O3 
160.21 O 
O O 
CH3H3C 
O 
O O 
CH3H3C 
+ 
(2S*,6R*)-2-Methoxy-4,4,6-trimethyl-
[1,3]dioxane 
III/35e 2.2.2:2772 
31866 C8H16O3S 
192.28 H9C4 
O 
S 
O 
O 
(R,S)-3-Butoxy-tetrahydro-thiophene 1,1-
dioxide 
III/35e 2.2.5:4199 
+ 
H9C4 
O 
S 
O 
O 
31867 C8H16O3S 
192.28 
(cis) 
OH3C 
S 
O 
2-Isopropyl-5-methanesulfinyl-[1,3]dioxane 
(cis) 
III/35e 2.2.5:4200 
OH3C CH3 
+ 
OH3C 
S 
O 
OH3C CH3 
31868 C8H16O3S 
192.28 
(trans) 
OH3C 
S 
O 
2-Isopropyl-5-methanesulfinyl-[1,3]dioxane 
(trans) 
III/35e 2.2.5:4201 
OH3C CH3 
+ 
OH3C 
S 
O 
OH3C CH3 
31869 C8H16O3S 
192.28 
(cis) 
O 
S 
O 
CH3 
H3C 
O O 
S 
O 
CH3 
H3C 
O 
+ 
(2R*,4R*)-4-Isopropyl-5,5-dimethyl-
[1,3,2]dioxathiane 2-oxide 
III/35e 2.2.5:4202 
31870 C8H16O3S 
192.28 
(trans) 
O 
S 
O 
CH3 
H3C 
O O 
S 
O 
CH3 
H3C 
O 
+ 
(2S*,4R*)-4-Isopropyl-5,5-dimethyl-
[1,3,2]dioxathiane 2-oxide 
III/35e 2.2.5:4203 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31871 C8H16O3S 
192.28 S 
O 
O 
1,3,2-Dioxathiane, 5-(1,1-dimethylethyl)-5methyl-, 
2-oxide, cis-; 
III/35e 2.2.5:4204 
63830-79-5 O 5-tert-Butyl-5-methyl-[1,3,2]dioxathiane 2+ 
oxide 
O 
O 
SO 
31872 C8H16O3S 
192.28 S 
O 
O 
1,3,2-Dioxathiane, 5-(1,1-dimethylethyl)-5methyl-, 
2-oxide, trans-; 
III/35e 2.2.5:4205 
63830-80-8 O 5-tert-Butyl-5-methyl-[1,3,2]dioxathiane 2+ 
oxide 
O 
SO 
O 
31873 C8H16O3S 
192.28 
O 
O 
O 
S 
4,4,7,7-Tetramethyl-[1,3,2]dioxathiepane 2oxide 
III/35e 2.2.5:4206 
31874 C8H16O3S 
192.28 
O 
S O 
O 5,5,6,6-Tetramethyl-[1,3,2]dioxathiepane 2oxide 
III/35e 2.2.5:4207 
31875 C8H16O3Si 
188.3 
O 
H3C 
O 
O 
Si 
C8H16O3Si III/35e 2.2.1:857 
31876 C8H16O3Si 
188.3 O C2H5 
HC acetyltriethoxysilane III/35e 2.2.2:2773 
Si 
O 
C2H5 
O 
H5C2 
31877 C8H16O4 
176.21 OO 
1,4,7,10tetraoxa-Cyclododecane III/35e 2.2.2:2774 
OO 
31878 C8H16O4S 
208.28 
O 
OH3C 
H3C 
S 
O O 2-Isopropyl-5-methanesulfonyl-[1,3]dioxane III/35e 2.2.5:4208 
31879 C8H16O4S 
208.28 
O 
OH3C 
H3C 
S 
O O C8H16O4S III/35e 2.2.5:4209 
31880 C8H16Sn 
230.9 Sn 
Bicyclo[1.1.1]pent-1-yl-trimethyl-stannane III/35c4 2.2:772 
31881 C8H17BCl2Si 
223.02 SiCl 
C8H17BCl2Si III/35a 2.2:781 
B 
CH3Cl 
C2H5 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31882 C8H17BO2 
156.03 
O 
B 
O 
C2H5 
2-Ethyl-4,4,5,5-tetramethyl-
[1,3,2]dioxaborolane 
III/35e 2.2.2:2775 
31883 C8H17BO2 
156.03 
O 
B 
O 
C2H5H3C O 
B 
O 
C2H5H3C 
+ 
(R,S)-2-Ethyl-4,4,6-trimethyl-
[1,3,2]dioxaborinane 
III/35e 2.2.2:2776 
31884 C8H17B7Ru 
289.97 
2,5,6-(.6-C6H6)RuC2B7H11 III/35a 2.2:782 
31885 C8H17B9Os 
400.75 
3,1,2-(.6-C6H6)OsC2B9H11 III/35a 2.2:783 
31886 C8H17ClGeO2 
253.31 Cl 
O 
O 
Ge 
C2H5 
H5C2 C2H5 C8H17ClGeO2 III/35e 2.2.1:858 
31887 C8H17ClNOS3Tc 
373.78 STcS 
OCl C8H17ClNOS3Tc III/35c4 2.2:773 
N 
S 
C2H5 
31888 C8H17ClO2Si 
208.76 Cl 
O 
O 
Si 
C2H5 
H5C2 C2H5 C8H17ClO2Si III/35e 2.2.1:859 
31889 C8H17ClO2Sn 
299.36 
Sn 
CH3 
O 
C8H17ClO2Sn III/35c4 2.2:774 
Cl CH3 
CH3 O 
31890 C8H17ClO2Sn 
299.36 
Sn 
CH3 
O 
C8H17ClO2Sn III/35c4 2.2:775 
Cl CH3 
CH3 O 
31891 C8H17Cl2O3PS 
295.16 O O 
CH3 (Dichloro-methylsulfanyl-methyl)phosphonic 
acid diisopropyl ester 
III/35c4 2.2:776 
P 
O 
CH3H3C 
S 
ClCl 
H3C CH3 
31892 C8H17FS 
164.28 H15C7 
S F 1-Fluoromethylsulfanyl-heptane III/35b 2.2:662 
31893 C8H17FS 
164.28 
H13C6 
F 
S 
CH3 
H13C6 
F 
S 
CH3+ 
(R,S)-1-Fluoro-1-methylsulfanyl-heptane III/35b 2.2:661 
31894 C8H17GeNO3 
247.87 
GeO O 
O 
H5C2 
C8H17GeNO3 III/35b 3.2:981 
N 
31895 C8H17GeNO4 
263.87 
GeO O 
O 
OH5C2 
C8H17GeNO4 III/35b 3.2:982 
N 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31896 C8H17IO2Si 
300.21 Si 
I 
O O 
CH3 
((Z)-1-Iodo-3-methoxymethoxy-propenyl)-
trimethyl-silane 
III/35c4 2.2:777 
31897 C8H17N 
127.23 H7C3 N 
C4H9 Butyl-but-(E)-ylidene-amine III/35b 3.2:994 
31898 C8H17N 
127.23 
39198-81-7 
N 
CH3 
H3C 1-Isobutylpyrrolidine; 
N-Isobutylpyrrolidine; 
Pyrrolidine, 1-(2-methylpropyl)-; 
Pyrrolidine, 1-isobutyl-
III/35b 3.2:986 
31899 C8H17N 
127.23 
98-94-2 
CH3 
CH3 
N 
Cyclohexanamine, N,N-dimethyl-; 
Cyclohexylamine, N,N-dimethyl-; 
Cyclohexyldimethylamine; 
(Dimethylamino)cyclohexane 
III/35b 3.2:983 
31900 C8H17N 
127.23 N 
CH3 1,3,3-Trimethyl-piperidine III/35b 3.2:992 
31901 C8H17N 
127.23 N 
CH3 1,4,4-Trimethyl-piperidine III/35b 3.2:993 
31902 C8H17N 
127.23 
N 
CH3 
CH3 + N 
CH3 
CH3 
C8H17N III/35b 3.2:987 
CH3 CH3 
31903 C8H17N 
127.23 
CH3 CH3 C8H17N III/35b 3.2:988 
N CH3 + N CH3 
CH3 CH3 
31904 C8H17N 
127.23 
H3C 
H3C 
N CH3 + N 
H3C 
H3C 
CH3 
C8H17N III/35b 3.2:989 
31905 C8H17N 
127.23 
H3C H3C C8H17N III/35b 3.2:990 
N CH3 + N CH3 
H3C H3C 
31906 C8H17N 
127.23 
H3C H3C C8H17N III/35b 3.2:991 
+ 
H3C N NH3C 
CH3 CH3 
31907 C8H17NO 
143.23 
10315-98-7 O 
N 
CH3 
CH3 4-Isobutyl-morpholine; 
4-isobutylmorpholine; 
Morpholine, 4-(2-methylpropyl)- 
III/35b 3.2:995 
31908 C8H17NOS 
175.29 H3C 
NH 
tert-Butyl-((Z)-2-methanesulfinyl-propenyl)-
amine 
III/35e 2.2.5:4210 
S 
H3C O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31909 C8H17NO2Si 
187.31 
CH2 C8H17NO2Si III/35b 3.2:997 
O OSi 
H3C N 
31910 C8H17NO2Si 
187.31 
Si O 
O 
H3C C8H17NO2Si III/35b 3.2:996 
N 
31911 C8H17NO3Si 
203.31 
2097-16-7 
ON 
O 
Si O 
C2H5 
1-Ethyl-2,8,9-trioxa-5-aza-1-sila-
bicyclo[3.3.3]undecane; 
2,8,9-Trioxa-5-aza-1-
silabicyclo[3.3.3]undecane, 1-ethyl- 
III/35e 2.2.2:2777 
31912 C8H17NO3Si 
203.31 O 
OH3C 
O Si 
C8H17NO3Si III/35b 3.2:998 
N 
31913 C8H17NO4S2 
255.35 
C2H5 
H5C2 N S 
S 
O O 
O 
O C2H5 
H5C2 N S 
S 
O O 
O 
O 
+ 
(R,S)-1,1-Dioxo-tetrahydro-1.6-thiophene-
3-sulfonic acid diethylamide; 
(R,S)-1,1-Dioxo-tetrahydro-1l6-thiophene-
3-sulfonic acid diethylamide 
III/35e 2.2.5:4211 
31914 C8H17NO4Si 
219.31 
N 
CH3 
N 
CH3 C8H17NO4Si III/35c4 2.2:778 
Si OO O 
Si OO O 
+ 
O O 
H3C H3C 
31915 C8H17NO4Si 
219.31 ON 
1-Ethoxy-2,8,9-trioxa-5-aza-1-sila-
bicyclo[3.3.3]undecane; 
III/35e 2.2.2:2778 
3463-21-6 
O 
Si O 
O 
C2H5 
1-ethoxy-2,8,9-trioxa-5-aza-1-
silabicyclo[3.3.3]undecane; 
Ethoxy silatrane; 
2,8,9-Trioxa-5-aza-1-
silabicyclo[3.3.3]undecane, 1-ethoxy-
31916 C8H17NS 
159.29 C2H5 
S 
C2H5 
S (R,S)-3-Ethylsulfanyl-1-methyl-piperidine III/35c2 2.2:542 
+ 
N N 
CH3 CH3 
31917 C8H17N2OP 
188.21 N N 
CH2 
H3C 
CH3 
CH3 
H3C 
C8H17N2OP III/35c4 2.2:779 
CP 
O 
CH3 
31918 C8H17N2P 
172.21 
P 
N 
C 
CH2 
N 
CH3 
H3C 
CH3 
H3C CH3 C8H17N2P III/35c4 2.2:780 
31919 C8H17N3O 
171.24 NH 
O Acetic acid N'-(1-methyl-piperidin-4-yl)-
hydrazide 
III/35b 3.2:999 
CH3NH 
N 
H3C 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31920 C8H17N3O2 
187.24 
H3CCH3 (2S,3S)-2,3-Diisopropyl-triaziridine-1-
carboxylic acid methyl ester 
III/35b 3.2:1000 
H3C 
N N 
CH3 
N 
O O 
CH3 
31921 C8H17OPS3 
256.39 
S 
P 
SS 
O 2-tert-Butyl-[1,3,6,2]trithiaphosphocane 2oxide 
III/35a 3.2:753 
31922 C8H17O2P 
176.19 PH 
O 
O 
C2H5 
C8H17O2P III/35c4 2.4:3359 
31923 C8H17O3P 
192.19 
4472-27-9 
O O 
H3C CH3 Vinyl-phosphonic acid diisopropyl ester III/35c4 2.2:781 
P 
O 
H3C CH3 
CH2 
31924 C8H17O3P 
192.19 O 
P 
O 
O 
CH3 
2-Methoxy-4,4,6,6-tetramethyl-
[1,3,2]dioxaphosphinane 
III/35e 2.2.4:3767 
31925 C8H17O3PS2 
256.32 
62999-73-9 S P 
O 
O 
C2H5 
O C2H5 (1,3)dithian-2-yl-phosphonic acid diethyl 
ester; 
[1,3]Dithian-2-yl-phosphonic acid diethyl 
III/35a 3.2:754 
ester 
S 
31926 C8H17O4P 
208.19 
20526-22-1 
O 
P 
O O 
CH3 
CH3 
O 
CH3H3C 
H3C 
Acetyl-phosphonic acid diisopropyl ester III/35e 2.2.4:3768 
31927 C8H17O4P 
208.19 HO P 
O O C2H5 
O 
C2H5 
(1-Hydroxy-cyclobutyl)-phosphonic acid 
diethyl ester 
III/35a 3.2:756 
31928 C8H17O4P 
208.19 
7301-84-0 
O 
CH3 
P 
O 
OO 
CH3 
cyclohexyl dimethyl phosphate; 
Phosphoric acid cyclohexyl ester dimethyl 
ester 
III/35a 3.2:755 
31929 C8H17O4PS 
240.26 P 
O O C2H5 
O 
HO 
C2H5 
CH3 C8H17O4PS III/35c4 2.2:783 
S 
CH3 
31930 C8H17O4PS 
240.26 
S 
P 
O O C2H5 
OH3C 
C2H5H3C 
O 
H3C 
H3C 
+ 
S 
O O O 
P 
C2H5 
O 
C2H5 
((R,S)-1-Methylsulfanyl-2-oxo-propyl)-
phosphonic acid diethyl ester 
III/35c4 2.2:782 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31931 C8H17O5P 
224.19 O O 
CH3 C8H17O5P III/35e 2.2.4:3769 
P 
H3C O 
O CH3 
O 
CH3H3C 
31932 C8H17O5P 
224.19 P 
O O C2H5 
O 
C2H5H3C 
OH ((R,S)-2-Hydroxy-3-oxo-butyl)-phosphonic 
acid diethyl ester 
III/35a 3.2:757 
O 
+ 
O 
P 
O O C2H5 
O 
C2H5H3C 
OH 
31933 C8H17O5P 
224.19 
O 
P 
O 
O 
CH3O 
CH3 
O 
CH3 
+ 
O 
P 
O 
O 
CH3O 
CH3 
O 
CH3 
(1S*,5R*)-3,3,3-Trimethoxy-2,4-dioxa-3.5-
phospha-bicyclo[3.2.1]octane 
III/35a 3.2:758 
31934 C8H17O5PS 
256.26 
See appendix No: 31934 Acetic acid (R,S)-(diethoxy-phosphoryl)methylsulfanyl-
methyl ester 
III/35c4 2.2:784 
31935 C8H17PSSi 
204.34 PSi S 
5-Methyl-1-phospha-5-sila-
bicyclo[3.3.1]nonane 1-sulfide 
III/35a 3.2:759 
31936 C8H17PS2Sn 
327.01 
PS 
6-tert-Butyl-
[1,3,6,2]dithiaphosphastannocane 
III/35a 3.2:761 
Sn 
S 
31937 C8H17PS4 
272.45 
S 
P 
SS 
S 2-tert-Butyl-[1,3,6,2]trithiaphosphocane 2sulfide 
III/35a 3.2:762 
31938 C8H17PSi 
172.28 
CH2 
PH Si 
3-Allyl-3-methyl-[1,3]phosphasilinane III/35a 3.2:760 
31939 C8H18AsBCl2N2 
298.88 
Cl 
N 
B 
N 
C8H18AsBCl2N2 III/35a 2.2:784 
As 
Cl 
31940 C8H18AsO2 
221.15 
C4H9 
As 
H9C4 
O(-)O Dibutylarsenate (1-) III/35e 2.2.6:4447 
31941 C8H18BCl 
160.49 
Di-t-butyl-chloro-borane III/35a 2.2:785 
B 
Cl 
31942 C8H18BCl2N2P 
254.93 
Cl 
N 
B 
N 
C8H18BCl2N2P III/35a 2.2:786 
P 
Cl 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31943 C8H18BCl3N2Si 
287.5 
Cl 
N 
B 
N 
C8H18BCl3N2Si III/35a 2.2:787 
Si 
Cl Cl 
31944 C8H18BN 
139.05 
C8H18BN III/35a 2.2:788 
N 
B 
31945 C8H18B2Cl2 
206.76 B B 
Cl 
Cl 
C8H18B2Cl2 III/35a 2.2:789 
31946 C8H18B2N2 
163.86 N 
C8H18B2N2 III/35a 2.2:791 
BH3 
NH2 
BH3 
31947 C8H18B2N2 
163.86 
B 
N 
CH3 
CH3 
C8H18B2N2 III/35a 2.2:790 
B 
N 
CH3 
CH3 
31948 C8H18B2N2 
163.86 
N CH3H3C 
BH3 C8H18B2N2 III/35a 2.2:792 
NH3C CH3 
BH3 
31949 C8H18B2N2O2 
195.86 
(delocalized system) 
H3C 
C8H18B2N2O2 III/35a 2.2:637 
ON 
BB 
NO 
CH3 
31950 C8H18B2S3 
232.05 B 
S 
B 
SS C8H18B2S3 III/35a 2.2:793 
31951 C8H18Cd 
226.63 
Cd 
CH3 
H3C CH3 
CH3 Bis-(2-methyl-propyl)-cadmium III/35c4 2.4:3360 
31952 C8H18ClF2IrO2P2 
473.84 
Ir 
P 
P 
Cl 
O 
C O 
FA 
FB 
C8H18ClF2IrO2P2 III/35b 2.2:663 
31953 C8H18ClF2IrO2P2 
473.84 
Ir 
P 
P 
C 
O 
Cl 
FBFA 
O 
C8H18ClF2IrO2P2 III/35b 2.2:664 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31954 C8H18ClIO2OsP2 
560.76 C 
O 
ClP 
Bis-(Trimethylphosphin)-dicarbonyl-
osmium-chloride-iodide 
III/35c4 2.2:785 
Os 
C I 
O P 
31955 C8H18ClN 
163.69 
999-33-7 H9C4 
N 
C4H9 
Cl 1-Butanamine, N-butyl-N-chloro-; 
Chlorodibutylamine; 
Dibutylamine, N-chloro-; 
Dibutylchloramine 
III/35b 3.2:1001 
31956 C8H18ClN 
163.69 
2498-24-0 NH(+) Cl(-) 
CH3 
CH3 Cyclohexanamine, N,N-dimethyl-, 
hydrochloride; 
Cyclohexyldimethylammonium chloride 
III/35b 3.2:1002 
31957 C8H18ClN 
163.69 NH(+) Cl(-) 
CH3 1,3,3-Trimethyl-piperidinium chloride III/35b 3.2:1009 
31958 C8H18ClN 
163.69 NH(+) Cl(-) 
CH3 1,4,4-Trimethyl-piperidinium chloride III/35b 3.2:1010 
31959 C8H18ClN 
163.69 
CH3 1-Isopropyl-piperidinium chloride III/35b 3.2:1011 
NH(+) Cl(-) 
CH3 
31960 C8H18ClN 
163.69 
CH3 
NH(+) 
CH3 
H3C 
Cl(-) 
H3C 
+ 
CH3 
NH(+) 
CH3 
Cl(-) 
C8H18ClN III/35b 3.2:1003 
31961 C8H18ClN 
163.69 
CH3 
NH(+) 
CH3 
H3C 
Cl(-) 
H3C 
+ 
CH3 
NH(+) 
CH3 
Cl(-) 
C8H18ClN III/35b 3.2:1004 
31962 C8H18ClN 
163.69 
CH3 CH3 C8H18ClN III/35b 3.2:1005 
NH(+) 
H3C 
Cl(-) 
H3C+ 
NH(+) Cl(-) 
CH3 CH3 
31963 C8H18ClN 
163.69 
CH3 CH3 C8H18ClN III/35b 3.2:1006 
NH(+) 
H3C 
Cl(-) 
H3C+ 
NH(+) Cl(-) 
CH3 CH3 
31964 C8H18ClN 
163.69 
CH3 
NH(+) 
H3C 
H3C 
Cl(-) 
H3C 
H3C 
+ 
CH3 
NH(+) 
Cl(-) 
C8H18ClN III/35b 3.2:1007 
31965 C8H18ClN 
163.69 
CH3 
NH(+) 
H3C 
H3C 
Cl(-) 
H3C 
H3C 
+ 
CH3 
NH(+) 
Cl(-) 
C8H18ClN III/35b 3.2:1008 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31966 C8H18ClNOS 
211.75 
CH3 CH3 C8H18ClNOS III/35b 3.2:1012 
N C2H5H5C2 
S 
O Cl 
31967 C8H18ClN2O2P 
240.67 
N(+) 
O P 
O 
N 
Cl(-) 
CH3 
+ N(+) 
O P 
O 
Cl(-) 
N 
CH3 
(R,S)-3a,6-Dimethyl-hexahydro-1,9-dioxa-
6-aza-3a-azonia-9a-phospha-
cyclopentacyclooctene chloride 
III/35b 3.2:1013 
31968 C8H18ClPSe 
259.62 
55249-22-4 
Se Cl 
H9C4 
P 
C4H9 
Phosphinoselenoic chloride, dibutyl-III/35a 3.2:763 
31969 C8H18Cl2NP 
230.12 
CH3 CH3 Bis-((1-methylpropyl)amino)-dichloro-
phosphane 
III/35b 3.2:1014 
N C2H5H5C2 
P 
Cl Cl 
31970 C8H18Cl2NP 
230.12 
Bis-(t-butyl)-amino-dichloro-phosphane III/35b 3.2:1015 
N Cl 
P 
Cl 
31971 C8H18Cl2O2OsP2 
469.31 C 
O 
Cl 
P 
Bis-(Trimethylphosphin)-dicarbonyl-
osmiumdichloride 
III/35c4 2.2:786 
Os 
C Cl 
O P 
31972 C8H18DOP 
163.22 
O D 
H9C4 
P 
C4H9 
Dibutyl-deutero-phosphinoxide III/35a 3.2:764 
31973 C8H18FN2O2P 
224.21 N FH3C 
CH3 
O 
C8H18FN2O2P III/35a 3.2:765 
H3C 
N 
P 
O 
C2H5 
CH3 
31974 C8H18FOP 
180.2 
Bis-(t-butyl)-fluoro-phosphinoxide III/35a 3.2:766 
P 
O F 
31975 C8H18FOP 
180.2 
P 
OF 
CH3 
CH3 (S)-(2-Methylpropyl)-t-butyl-fluorophosphinoxide 
III/35b 2.2:665 
31976 C8H18FO2P 
196.2 
F 
H9C4 
O 
P 
O 
C4H9 
Phosphorofluoridous acid dibutyl ester III/35a 3.2:767 
31977 C8H18FO3P 
212.2 
H3C 
OCH3 
CH3 
O 
P CH3 
F 
O 
H3C 
H3C 
+ CH3 
O 
P 
O 
H3C 
O 
CH3 
F 
CH3 
((R,S)-1-Fluoro-ethyl)-phosphonic acid 
diisopropyl ester 
III/35a 3.2:768; 
III/35b 2.2:666 
31978 C8H18FPS 
196.27 
C8H18FPS III/35a 3.2:769 
P 
S F 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31979 C8H18F2IrO2P2 
438.39 
(unknown relative positions) 
Ir(+) 
C 
C F 
P 
P 
FO 
O 
C8H18F2IrO2P2 III/35b 2.2:667 
31980 C8H18F4N3P3 
325.16 
F 
F 
P 
N 
P 
N N 
P 
F 
F 
2,4-Di-tert-butyl-2,4,6,6-tetrafluoro-
2.5,4.5,6.5-[1,3,5,2,4,6]triazatriphosphinine 
III/35a 3.2:770 
31981 C8H18GeO2 
218.87 
C2H5 
H3C 
O 
O 
Ge 
C2H5 
H5C2 C8H18GeO2 III/35e 2.2.1:860 
31982 C8H18I2O22 
652.21 
Os 
C 
O 
C 
O 
I 
I 
P 
P 
Bis-(Trimethylosmium-diiodide 
III/35c4 2.2:787 
31983 C8H18NO2P 
191.21 
O 
O 
P N 
CH3 
CH3 ((2R,4S)-4-tert-Butyl-
[1,3,2]dioxaphospholan-2-ylamine 
III/35a 3.2:771 
31984 C8H18NO2P 
191.21 O 
O 
P N 
CH3 
CH3 
((2S,4S)-4-tert-Butyl-
[1,3,2]dioxaphospholan-2-ylamine 
III/35a 3.2:772 
31985 C8H18NO2PSe 
270.17 
P 
O 
O 
Se 
CH3 
NH P 
O 
O 
Se 
CH3 
NH 
+ 
tert-Butyl2.5-[1,3,2]dioxaphosphinan-2-yl)-amine 
III/35a 3.2:773 
31986 C8H18NO3P 
207.21 
N 
P 
O O CH3 
O 
CH3 
(2,2,3,3-Tetramethyl-azil)phosphonic 
acid dimethyl ester 
III/35b 3.2:1016 
31987 C8H18NO3P 
207.21 
H3C 
H3C O O 
O 
P 
N 
H3C 
H3C O O 
O 
P 
N 
+ 
((R,S)-2-tert-Butyl-aziridin-1-yl)-phosphonic 
acid dimethyl ester 
III/35c2 2.2:543 
31988 C8H18NO3PS2 
271.34 
S 
P 
O O C2H5 
ONH 
C2H5H3C 
S 
H3C 
S 
P 
O O C2H5 
ONH 
C2H5H3C 
S 
H3C+ 
lmethylIII/35c4 2.2:788 
31989 C8H18NP 
159.21 
P 
N 
C8H18NP III/35c4 2.2:789 
31990 C8H18N2 
142.24 N 
CH3 
N 
H7C3 
1-MethylIII/35b 3.2:1017 
31991 C8H18N2O2 
174.24 N(+) 
O(-) 
O(-) 
N(+) 
Di-tert-butyl-diazene N,N'-dioxide III/35b 3.2:1018 
OsPphosphin)-dicarbonyl-
)-dimethyl)-
dimethyl-((
2S*,4S*)-4-methyl-2-selenoxo-
ridin-1-y((R,S)-Methylsulfanyl-methythiocarbamoyl)-
phosphonic acid diethyl ester 
-4-propyl-piperazine 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
31992 C8H20N2O2 
176.26 
NH(+) 
O(-) 
NH(+) 
O(-) C8H20N2O2 III/35e 2.2.3:3528 
31993 C8H18N3PSi 
215.31 Si 
5-tert-Butyl-2-trimethylsilanyl-2H-
[1,2,3,4]triazaphosphole 
III/35a 3.2:774 
NN 
N 
P 
31994 C8H18OS 
162.29 
O 
S 
2-Methyl-2-(2-methyl-propane-2-sulfinyl)propane 
III/35e 2.2.5:4213 
31995 C8H18OSi 
158.31 Si 
2,2-Dimethyl-1-trimethylsilanyl-propan-1-
one 
III/35e 2.2.1:861 
13411-49-9 
O 
31996 C8H18O2S2 
210.36 
CH3 C8H18O2S2 III/35e 2.2.5:4216 
O 
S 
S 
O 
H3C 
CH3 
CH3 
31997 C8H18O2S2 
210.36 
O 
S 
S 
O 
C8H18O2S2 III/35e 2.2.5:4217 
31998 C8H18O2S2 
210.36 
C4H9 
O 
S 
S 
O 
H9C4 
C8H18O2S2 III/35e 2.2.5:4215 
31999 C8H18O2Si 
174.31 
5290-29-9 
C2H5 
H3C 
O 
O 
Si 
C2H5 
H5C2 Acetoxytriethylsilane; 
Silanol, triethyl-, acetate; 
Triethylacetoxysilane 
III/35e 2.2.1:862 
32000 
190.31 
78-08-0 
C8H18O3Si 
O 
Si 
O 
C2H5H5C2 
O C2H5H2C 
(Triethoxy)vinylsilane 
Silane, ethenyltriethoxy; 
III/35e 2.2.2:2784 
32001 C8H18O4Si 
206.31 Si 
O 
C2H5O 
O C2H5 
O 
H3C 
Acetic acid (diethoxy-methyl-silanyl)-methyl 
ester 
III/35e 2.2.2:2785 
32002 C8H18P2S2 
240.31 P 
S 
C2H5 
1,2-Diethyl-[1,2]diphosphinane 1,2-disulfide III/35a 3.2:775 
P S 
C2H5 
32003 C8H18P2S2Si2 
296.48 
P 
Si 
5-Trimethylsilanyl-3-trimethylsilanylsulfanyl-
[1,2,4]thiadiphosphole 
III/35a 3.2:776 
P S 
S Si 
32004 C8H18Si 
142.31 
Si 
CH3 
CH3 
Trimethyl-((Z)-2-methyl-but-2-enyl)-silane III/35c4 2.2:790 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
32005 C8H18Si 
142.31 SiH3C 
Trimethyl-(3-methyl-but-2-enyl)-silane III/35c4 2.2:791 
18293-99-7 
CH3 
32006 C8H18Te 
241.83 
38788-38-4 
H9C4 
Te 
C4H9 
Butane, 1,1'-tellurobis-; 
Butyl telluride; 
1-Butyltellanyl-butane; 
Di(n-butyl)telluride 
III/35c4 2.2:792 
32007 C8H19B 
126.05 
67826-87-3 CH3 
CH3 
+ CH3 
CH3 Borane, (1-isopropyl-2,2-dimethylpropyl)-; 
Borane, [2,2-dimethyl-1-(1-
methylethyl)propyl]-; 
III/35a 2.2:794 
BH2 BH2 DibBH2 
32008 C8H19BO2 
158.05 
B 
O CH3 
CH3 
OH3C 
CH3 C2H5 C8H19BO2 III/35e 2.2.2:2786 
32009 C8H19B2 
136.86 
BH 
BH 
H(-) 
C8H19B2 
-III/35a 2.2:795 
32010 C8H19B2K 
175.96 
BH 
BH 
H(-) K(+) 
C8H19B2K III/35a 2.2:795 
32011 C8H19ClNPSe 
274.63 
C2H5 
N 
C8H19ClNPSe III/35a 3.2:777 
P C2H5 
Se Cl 
32012 C8H19FNP 
179.22 P 
NH 
F C8H19FNP III/35c4 2.2:793 
32013 C8H19FNPS 
211.28 
C2H5 
N 
C8H19FNPS III/35a 3.2:778 
P C2H5 
S F 
32014 C8H19FNPSe 
258.18 
C2H5 
N 
C8H19FNPSe III/35a 3.2:779 
P C2H5 
Se F 
32015 C8H19F2O3PSi 
260.29 
80077-72-1 
C2H5O 
PSi 
F F 
O O C2H5 (Difluoro-trimethylsilanyl-methyl)phosphonic 
acid diethyl ester 
III/35b 2.2:668 
32016 C8H19N 
129.24 
21981-37-3 NH 
Di-tert-butyl-amine III/35b 3.2:1019 
32017 C8H19NO2 
161.24 
Ethanol, 2,2'-[(1,1-dimethylethyl)imino]bis-; 
Ethanol, 2,2'-(tert-butylimino)di-; 
III/35b 3.2:1022 
2160-93-2 
OHHO 
N 2-[tert-Butyl-(2-hydroxy-ethyl)-amino]-
ethanol; 
2,2'-(tert-Butylimino)diethanol 
32018 C8H19OP 
162.21 H17C8 
PH2 
O 
1-Phosphoroso-octane III/35a 3.2:781; 
III/35c4 2.4:3361 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
32019 C8H19OP 
162.21 
684-19-5 PH 
O 
Di-tert-butylphosphinic acid; 
2-tert-Butylphosphinoyl-2-methyl-propane 
III/35a 3.2:780 
32020 C8H19OP 
162.21 
15754-54-8 C4H9 
PH 
H9C4 
O 1-Butylphosphinoyl-butane; 
Dibutyl-phosphine oxide 
III/35a 3.2:782; 
III/35c4 2.4:3362 
32021 C8H19OPSi 
190.29 PH 
SiO 
H3C 
5-Methoxy-5-methyl-[1,5]phosphasilocane III/35a 3.2:783 
32022 C8H19O2PS2 
242.34 
O 
P 
S S 
CH3 
H3C O CH3 
CH3 
CH3 
Methylsulfanylmethyl-phosphonothioic acid 
diisopropyl ester 
III/35c4 2.2:794 
32023 C8H19O3P 
194.21 H9C4 
O 
PH 
O 
O C8H19O3P III/35a 3.2:784 
32024 C8H19O3P 
194.21 
H5C2 CH3 
C2H5 
O 
PH 
O 
O CH3 C8H19O3P III/35a 3.2:785 
32025 C8H19O3P 
194.21 CH3H9C4 
O 
PH 
O 
O 
CH3 
C8H19O3P III/35a 3.2:788 
32026 C8H19O3P 
194.21 
2283-25-2 H5C2 C2H5O 
PH 
O 
OCH3 CH3 Phosphonic acid di-sec-butyl ester III/35a 3.2:787, 
789 
32027 C8H19O3PS 
226.27 
CH3 
O O 
Methylsulfanylmethyl-phosphonic acid 
diisopropyl ester 
III/35c4 2.2:795 
P 
O 
CH3 
H3C 
S 
CH3H3C 
32028 C8H19O3PS2 
258.34 S S 
O 
PH 
O 
O 
H5C2 C2H5 
C8H19O3PS2 III/35a 3.2:790 
32029 C8H19O3PSe 
273.17 CH3 
H3C CH3 
CH3 
O 
P 
O 
O Se 
H5C2 C8H19O3PSe III/35a 3.2:791 
32030 C8H19O4PS 
242.27 P 
O O C2H5 
OH5C2 
O P 
O O C2H5 
OH5C2 
O 
+ 
((R,S)-Ethoxy-methylsulfanyl-methyl)phosphonic 
acid diethyl ester 
III/35c4 2.2:796 
C2H5SH3C 
C2H5SH3C 
32031 C8H19P 
146.21 
H3C 
CH3 
CH3 
CH3 
PH 
Diisobutyl-phosphane III/35a 3.2:794 
32032 C8H19P 
146.21 
819-19-2 PH 
Di-tert-butyl-phosphane; 
Di-tertbutylphosphine 
III/35a 3.2:792 
32033 C8H19P 
146.21 
1732-72-5 
H9C4 
PH 
C4H9 
Dibutyl-phosphane; 
Phosphine, dibutyl-
III/35a 3.2:793 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
32034 C8H19PS 
178.28 
H3C 
CH3 
CH3 
CH3 
PH 
S 1-Isobutylphosphinothioyl-2-methyl-
propane 
III/35a 3.2:795; 
III/35c4 2.4:3363 
32035 C8H19PSe 
225.17 
H3C 
SeCH3 
PH 
CH3 
CH3 C8H19PSe III/35c4 2.4:3364 
32036 C8H20AsI 
318.07 
H5C2 
As(+) 
C2H5 
I(-) 
Tetraethyl-arsonium iodide III/35c4 2.2:797 
C2H5H5C2 
32037 C8H20B 
127.06 
BH2(-) C8H20B-III/35a 2.2:796 
32038 C8H20BO5P 
238.03 OH5C2 O 
H5C2 
BH2 
P 
O 
H5C2 
O 
O 
CH3 
C8H20BO5P III/35a 3.2:796 
32039 C8H20B2 
137.87 
H5C2 B 
B 
C2H5 
C2H5 
C2H5 C8H20B2 III/35a 2.2:797 
32040 C8H20B2Cl4P2 
341.63 
P P 
B 
Cl Cl 
H5C2 C2H5 
C8H20B2Cl4P2 III/35a 2.2:798 
BH5C2 C2H5 
Cl Cl 
32041 C8H20B2F4N2 
241.87 
N N 
B 
F F 
H5C2 C2H5 
C8H20B2F4N2 III/35a 2.2:799 
BH5C2 C2H5 
F F 
32042 C8H20B2N2 
165.88 N N B 
CH3 
CH3 
B 
H3C 
H3C 
C8H20B2N2 III/35a 2.2:800 
32043 C8H20B2N2S3 
262.07 B 
S 
B 
SS 
N 
C2H5 
N 
H5C2 
C2H5 C2H5 
C8H20B2N2S3 III/35a 2.2:801 
32044 C8H20B2N4 
193.89 
N 
BB 
N 
CH3 
H3C C8H20B2N4 III/35a 2.2:802 
NN 
H3C 
CH3 
32045 C8H20B2O 
153.87 
B B 
C2H5 C2H5 C8H20B2O III/35a 2.2:803; 
III/35e 2.2.6:4450 
O C2H5H5C2 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
32046 C8H20B3Br3N4 
444.42 CH3 
H3C Boron, tribromo(1,1',3,3'-tetramethyl-2,2'-bi-
1,3,2-diazaborolidine-N1)-, [T-4-(R)]-
III/35a 2.2:804 
91320-42-2 NN 
BB 
NN 
CH3 
B Br 
Br 
Br 
32047 C8H20B3N3 
190.7 
CH2 C8H20B3N3 III/35a 2.2:805 
N 
B 
N 
H3C CH3 
BB 
N CH3H3C 
CH3 
32048 C8H20B8 
202.73 
Me4B8C4H8 III/35a 2.2:806 
32049 C8H20B8FeSn 
377.27 
SnFeMe4B8C4H8 III/35a 2.2:807 
32050 C8H20ClN 
165.7 
CH3CH3 
H3C 
NH2(+) 
CH3 
Cl(-) 
Diisobutyl-ammonium chloride III/35b 3.2:1024 
32051 C8H20ClNOPtS 
408.85 N 
Pt Cl 
S 
O 
H5C2 H5C2 
+ 
N 
Pt Cl 
S 
O 
C8H20ClNOPtS III/35c4 2.2:798 
32052 C8H20ClN2P 
210.69 
685-83-6 N 
C2H5P 
N 
C2H5 
H5C2 
Cl 
C2H5 
Bis-(diethylamino)-chlorphosphin; 
bis(diethylamino)phosphorochloridite; 
tetraethyldiamidophosphorous acid 
chloride; 
tetraethylphosphorodiamidous chloride 
III/35b 3.2:1025 
32053 C8H20Cl2N3P3S4 
450.35 
N 
P 
N 
P 
N 
S 
SS 
S 
Cl 
P 
Cl 
C2H5 
C2H5H5C2 
H5C2 
2,2-Dichloro-4,4,6,6-tetrakis-ethylsulfanyl-
2.5,4.5,6.5-[1,3,5,2,4,6]triazatriphosphinine 
III/35a 3.2:797 
32054 C8H20Cl4N4P4S4 
566.24 P N 
P 
N 
PN 
P 
N 
S 
S 
S 
S 
ClCl 
H5C2 
C2H5 Cl Cl 
C2H5 
C2H5 
2,2,6,6-Tetrachloro-4,4,8,8-tetrakis-
ethylsulfanyl-2.5,4.5,6.5,8.5-
[1,3,5,7,2,4,6,8]tetrazatetraphosphocine 
III/35a 3.2:798 
32055 C8H20Cl4N5P3 
421.01 NH NH 
Bis[tert-butylamino]-
tetrachlorocyclotriphosphazene 
III/35a 3.2:799 
3732-89-6 P 
N N 
P 
N 
Cl 
ClCl 
Cl P 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
32056 C8H20Cl6N6P4 
536.9 
P N 
P 
N 
PN 
P 
N 
Cl 
Cl 
NHClCl 
Cl 
Cl NH 
N,N'-Di-tert-butyl-2,4,4,6,8,8-hexachloro-
2.5,4.5,6.5,8.5-
[1,3,5,7,2,4,6,8]tetrazatetraphosphocine-
2,6-diamine 
III/35a 3.2:800 
32057 C8H20Cl6N7P3 
519.93 
N 
P 
N 
P NHNH 
Cl 
P 
Cl 
Cl Cl 
C8H20Cl6N7P3 III/35a 3.2:801 
N NHNH 
Cl Cl 
32058 C8H20FN2P 
194.23 
N 
C2H5 
N 
C2H5 C8H20FN2P III/35a 3.2:802 
C2H5H5C2 P 
F 
32059 C8H20FeO8P2 
362.03 
See appendix No: 32059 C8H20FeO8P2 III/35c4 2.2:799 
32060 C8H20NPSe 
240.19 
C2H5 
Se C2H5 
H5C2 
N 
C2H5 
P 
C8H20NPSe III/35a 3.2:803 
32061 C8H20N2 
144.26 
CH3 CH3 N,N'-Diisopropyl-N,N'-dimethyl-hydrazine III/35b 3.2:1026 
N 
NH3C 
CH3 
CH3CH3 
32062 C8H20N2 
144.26 
C2H5N 
H5C2 
C2H5 
NH 
N,N,N'-Triethyl-ethane-1,2-diamine III/35b 3.2:1028 
32063 C8H20N2OS 
192.32 
33641-61-1 S 
NN 
H5C2 
C2H5 
C2H5 
O 
C2H5 Sulfinylbis(diethylamide) III/35b 3.2:1029 
32064 C8H20N3P 
189.24 
P 
N 
CH3 
N 
C2H5 
(1,3-Dimethyl-[1,3,2]diazaphospholidin-2-
yl)-diethyl-amine 
III/35b 3.2:1031 
N C2H5 
CH3 
32065 C8H20N3P 
189.24 
N 
P 
N 
CH3 
CH3 
N 
CH3 
CH3 
H3C 
(1,3-Dimethyl-[1,3,2]diazaphospholidin-2-
yl)-isopropyl-methyl-amine 
III/35b 3.2:1032 
32066 C8H20OSi2 
188.41 Si O Si 
(Z)-1-Trimethylsilanyl-2-trimethylsilanyloxy-
ethene 
III/35c4 2.2:800 
32067 C8H20O2P2S4 
338.45 
PH5C2 
O 
P 
OH5C2 S 
S S 
C2H5 
S 
C2H5 C8H20O2P2S4 III/35a 3.2:804 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
32068 C8H20O2Si2 
204.41 Si 
O 
O 
Si 
C8H20O2Si2 III/35e 2.2.1:863 
32069 C8H20O3P2 
226.19 
O 
H3C 
P 
C2H5O 
CH3 
O 
P C2H5 
(2-Dimethylphosphanyl-ethyl)-phosphonic 
acid diethyl ester 
III/35a 3.2:805 
32070 C8H20O3Si2 
220.41 Si 
O 
O 
O 
Si 
(Trimethylsiloxy)acetate trimethylsilyl ester III/35e 2.2.1:864 
32071 C8H20O4Te 
307.84 
O 
Te 
O O 
O 
C2H5H5C2 
C2H5H5C2 C8H20O4Te III/35c4 2.2:801 
32072 C8H20P2 
178.19 
H5C2 
P 
P 
C3H7 
CH3 1,2-Diethyl-1-methyl-2-propyl-diphosphane III/35a 3.2:806 
C2H5 
32073 C8H20P2 
178.19 
P 
CH3 1-tert-Butyl-2-ethyl-1,2-dimethyl-
diphosphane 
III/35a 3.2:807, 
808 
H5C2 P 
CH3 
32074 C8H20P2 
178.19 
CH3 
P 
CH3 1,2-Diethyl-1-isopropyl-2-methyl-
diphosphane 
III/35a 3.2:809 
H3C P C2H5 
C2H5 
32075 C8H20P2S 
210.26 H5C2 
P 
C2H5 
S 
P 
C2H5 
C2H5 C8H20P2S III/35a 3.2:810 
32076 C8H20Sn 
234.93 H9C4 
SnH2 
C4H9 
Dibutyl-stannane III/35c4 2.2:805 
32077 C8H21AsNP 
237.15 
H3C 
As 
N 
P 
CH3 
H5C2 C2H5 
C2H5 
C8H21AsNP III/35c4 2.2:806 
32078 C8H21B9ClIr 
442.22 
[1-Cl-1,1-(h2:h2-C8H12)-isocloso-1-IrB9H9] III/35a 2.2:808 
32079 C8H21BeBrN2 
234.18 
N 
Be 
N 
C2H5 
Br 
C8H21BeBrN2 III/35c4 2.2:807 
32080 C8H21BrNiOP2 
333.8 
Ni 
P 
PBr 
CH3 
O C8H21BrNiOP2 III/35c4 2.2:808 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
32081 C8H21ClN2Pt 
375.8 N 
H3C C8H21ClN2Pt III/35c4 2.2:809 
Pt Cl 
NH 
H3C 
CH3H3C 
32082 C8H21ClNiOP2 
289.35 
O C8H21ClNiOP2 III/35c4 2.2:810 
P 
Ni CH3 
PCl 
32083 C8H21ClOSi2 
224.88 
18291-27-5 
Si 
O 
Si Cl 
1-(3-Chloro-propyl)-1,1,3,3,3-pentamethyl-
disiloxane 
III/35e 2.2.6:4451 
32084 C8H21FN3P 
209.25 H5C2 
N 
P 
F 
C2H5 
C2H5 
N 
HN 
C2H5 
C8H21FN3P III/35a 3.2:811 
32085 C8H21INiOP2 
380.8 
O C8H21INiOP2 III/35c4 2.2:811 
P 
Ni CH3 
PI 
32086 C8H21NOSi 
175.34 NH2 
H5C2 
Si 
O 2-Triethylsilanyloxy-ethylamine III/35b 3.2:1033 
H5C2 C2H5 
32087 C8H21NO4Si 
223.34 Si 
O 
H5C2 
O 
O C2H5OH5C2 
NH2 
C8H21NO4Si III/35e 2.2.2:2790 
32088 C8H21NO6P2 
289.2 
H5C2 
O 
P 
OH5C2 
N 
O 
H5C2 
P 
O 
O 
CH3 
O CH3 
C8H21NO6P2 III/35a 3.2:812 
32089 C8H21N2OP 
192.24 
N N 
C2H5C2H5 C8H21N2OP III/35c4 2.2:812 
H5C2 PH C2H5 
O 
32090 C8H21O4PSi2 
268.39 O O Si 
C8H21O4PSi2 III/35e 2.2.4:3771 
P 
O 
H3C 
O Si 
32091 C8H21O5PSi2 
284.39 O O Si 
C8H21O5PSi2 III/35e 2.2.4:3772 
PO 
OH3C 
O Si 
32092 C8H21P3 
210.17 PP 
CH3 Bis-dimethylphosphanyl-(trimethyl-.5-
phosphanylidene)-methane 
III/35a 3.2:813 
CH3 
P 
CH3H3C 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
32093 C8H22AuNP2 
391.18 
(delocalized system) 
P 
C8H22AuNP2 III/35c4 2.2:813 
Au(-) N 
P(+) 
32094 C8H22BF2N2 
195.08 
F 
H5C2 
N 
B(+) 
N 
C2H5 
F 
C8H22BN2F2 
+ III/35a 2.2:809 
32095 C8H22BN2Sb 
278.83 
CH3 
N Sb 
C2H5 C8H22BN2Sb III/35a 2.2:810 
H3C B C2H5 
N 
CH3H3C 
32096 C8H22BP 
160.04 PH 
BH3 
C8H22BP III/35a 3.2:814 
32097 C8H22B2N6 
223.92 
B 
N 
N 
N 
B 
N 
NH 
NH 
CH3 
CH3 
H3C 
CH3 
C8H22B2N6 III/35a 2.2:811 
32098 C8H22B4GeSi2 
290.31 
[(Me3Si)2C2B4H4]GeII III/35a 2.2:812 
32099 C8H22B4Sn 
280.19 
(Me3Si)2B4C2SnH4 III/35a 2.2:813 
32100 C8H22B4W 
345.34 
[{W(h-C5H4i-Pr)H3}B4H8] III/35a 2.2:814 
32101 C8H22BrO3PSSi2 
365.37 P 
O O Si 
OH3C 
S 
SiBr 
+ H3C 
P 
O 
S 
Br 
O Si 
O 
Si 
C8H22BrO3PSSi2 III/35c4 2.2:814 
32102 C8H22Cl2OP2W 
450.95 
CH2 
CH2 
P 
P 
W 
O 
Cl 
Cl 
C8H22Cl2OP2W III/35a 3.2:815 
32103 C8H22Cl2P2SW 
467.02 
CH2 
CH2 
P 
P 
W 
S 
Cl 
Cl 
C8H22Cl2P2SW III/35a 3.2:816 
32104 C8H22Cl3Si2Ta 
461.74 Si 
C8H22Cl3Si2Ta III/35c4 2.2:815 
Cl 
TaCl Si 
Cl 
32105 C8H22CoN6O4 
325.23 CH3 
NH 
Co 
NH NO2 
C8H22CoN6O4 III/35c4 2.2:816 
NH CH3NH NO2 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
32106 C8H22FN2PSi 
224.33 FNH3C 
CH3 C8H22FN2PSi III/35a 3.2:817 
H3C 
N 
P Si 
CH3 
32107 C8H22N2O2Si 
206.36 
H5C2 
N 
C2H5 
O 
SiH2O 
N 
C2H5 
C2H5 Bis(N,N-diethylhydroxylamino)-silane III/35e 2.2.3:3529 
32108 C8H22N3OP 
207.25 ONH3C 
CH3 C8H22N3OP III/35a 3.2:818 
H3C 
N 
P 
NH 
C4H9 
CH3 
32109 C8H22Si2Te 
302.03 Te SiSi 
C8H22Si2Te III/35c4 2.2:817 
32110 C8H22Si2Zn 
239.84 Zn SiSi 
C8H22Si2Zn III/35c4 2.2:818 
32111 C8H23AsBN 
219.01 
As 
CH3 C8H23AsB III/35a 2.2:815 
BH3H3C N 
CH3H3C 
32112 C8H23B3W 
335.54 
[{W(h-C5H4i-Pr)H4}B4H8] III/35a 2.2:816 
32113 C8H24AuBP2 
390.0 
Au 
P 
BH2 
P 
C8H24AuBP2 III/35a 2.2:817 
32114 C8H24BNSi2 
201.26 
B 
CH3 
Si 
C8H24BNSi2 III/35a 2.2:818 
H3C N 
Si 
32115 C8H24BNSn2 
382.47 
N 
CH3 
Sn 
C8H24BNSn2 III/35a 2.2:819; 
III/35c4 2.2:819 
H3C B 
Sn 
32116 C8H24BNSn2 
382.47 
B 
CH3 
Sn 
C8H24BNSn2 III/35a 2.2:820 
H3C N 
Sn 
32117 C8H24BSi2 
187.26 SiSi 
B(-) 
C8H34BSi2 
-III/35a 2.2:834 
32118 C8H24B2N2S2Si2 
290.21 SSi Si 
C8H24B2N2S2Si2 III/35a 2.2:821 
N N 
B B 
S CH3H3C 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
32119 C8H24B2N4 
197.93 
1630-79-1 
H3C 
N 
CH3 
B 
B 
N 
H3C 
N 
N 
CH3 
CH3H3C 
CH3 
CH3 
Diborane(4)tetramine, octamethyl-III/35a 2.2:822 
32120 C8H24B2N6 
225.94 NN 
H3C CH3 
CH3H3C 
C8H24B2N6 III/35a 2.2:823 
BBN N 
N N CH3H3C 
H3C CH3 
32121 C8H24B4N4S2 
283.68 
B B 
SN 
H3C 
CH3 
N 
CH3 
CH3 C8H24B4N4S2 III/35a 2.2:824 
B 
S 
B 
N N 
CH3H3C 
CH3CH3 
32122 C8H24B8N2Ni 
293.47 
m-6,9-Ni(cis-1,2-DACH)-nido-6,9-C2B8H10 III/35a 2.2:825 
32123 C8H24Cl2Ni2P2 
370.52 P Cl 
C8H24Cl2Ni2P2 III/35c4 2.2:820 
NiNi 
Cl P 
32124 C8H24CoNOP2 
271.16 
H3C 
N 
O 
Co 
P 
C8H24CoNOP2 III/35c4 2.2:821 
H3C 
P 
32125 C8H24GeO2Si2 
281.09 Si 
O 
Ge 
O 
Si 
C8H24GeO2Si2 III/35c4 2.2:822 
32126 C8H24NPSSi2 
253.49 P 
S 
Si 
C8H24NPSSi2 III/35b 3.2:1035 
N 
Si 
32127 C8H24NPSeSi2 
300.39 P 
Se 
N 
Si 
Si 
C8H24NPSeSi2 III/35b 3.2:1036 
32128 C8H24NPSi2 
221.43 
P 
CH3 
Si 
C8H24NPSi2 III/35b 3.2:1037 
H3C N 
Si 
32129 C8H24N4O4Si 
268.39 
CH3 O 
N CH3 
H3C 
O N 
CH3 
Tetrakis(N,N-dimethylhydroxylamino)silane III/35e 2.2.3:3530 
H3C 
N 
O 
Si 
O 
CH3 
N 
CH3H3C 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
32130 C8H24N4O8P4 
428.19 
P 
N 
P 
N P 
N 
P 
N 
O O 
O 
O 
O O 
O 
O 
CH3 
H3C H3C 
CH3 
CH3 
H3C 
CH3 
H3C 
2,2,4,4,6,6,8,8-Octamethoxy-
2.5,4.5,6.5,8.5-
[1,3,5,7,2,4,6,8]tetrazatetraphosphocine 
III/35b 3.2:1038 
32131 C8H24N4P4 
300.2 
N 
P 
P 
N 
2,2,4,4,6,6,8,8-Octamethyl-2.5,4.5,6.5,8.5-
[1,3,5,7,2,4,6,8]tetrazatetraphosphocine 
III/35b 3.2:1039 
P 
N P 
N 
32132 C8H24NiP2 
240.92 P 
C8H24NiP2 III/35c4 2.2:823 
Ni 
P 
32133 C8H24O2SiSn2 
417.74 Sn 
O 
Si 
O 
Sn 
C8H24O2SiSn2 III/35c4 2.2:824 
32134 C8H24O2Si2Sn 
327.14 Si 
O 
Sn 
O 
Si 
C8H24O2Si2Sn III/35c4 2.2:825 
32135 C8H24Sn3 
476.35 Sn 
Sn 
Sn 
C8H24Sn3 III/35c4 2.2:826 
32136 C8H25BN3P 
205.09 N 
CH3 
H3C BH2 C2H5 
C8H25BN3P III/35a 2.2:826 
P CH3NN 
H3C 
CH3CH3 
32137 C8H25B2N3SSi2 
273.16 SSi Si 
C8H25B2N3SSi2 III/35a 2.2:827 
N N 
B B 
NH CH3H3C 
32138 C8H25CoF9N5O9 
S3 
661.43 
Co(2+) 
NH2 
H3C 
NH2 
CH3 
NH2 
CH3 
NH2 
S 
NH2 
CH3 
O 
O O 
CF3 
H3C 
F3C 
S 
O O 
O(-) 
O O 
O(-)F3C 
S 
C8H25CoF9N5O9S3 III/35c4 2.2:827 
32139 C8H25F9N5O9Rh 
S3 
705.4 
Rh(2+) 
NH2 
H3C 
NH2 
CH3 
NH2 
CH3 
NH2 
S 
NH2 
CH3 
O 
O O 
CF3 
H3C 
F3C 
S 
O O 
O(-) 
O O 
O(-)F3C 
S 
C8H25F9N5O9RhS3 III/35c4 2.2:828 
32140 C8H26B6 
187.16 
See appendix No: 32140 C8H26B6 III/35a 2.2:828 
32141 C8H26B9NO2 
265.6 
See appendix No: 32141 C8H26B9NO2 III/35c4 2.2:829 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C8 
32142 C8H26N2Si4 
262.65 
Si 
Si 
NH 
Si 
Si 
NH 
2,2,3,3,5,5,6,6-Octamethyl-
[1,4,2,3,5,6]diazatetrasilinane 
III/35b 3.2:1040 
32143 C8H26Ni2O2P2 
333.62 
OH 
Ni 
OH 
Ni 
PP 
C8H26Ni2O2P2 III/35c4 2.2:830 
32144 C8H26Ni2O2P2 
333.62 
OH 
Ni 
OH 
Ni 
P 
P 
C8H26Ni2O2P2 III/35c4 2.2:831 
32145 C8H26O3Si4 
282.63 
Si 
O 
SiH 
O 
CH3 
SiH 
CH3 
O 
Si 
C8H26O3Si4 III/35e 2.2.6:4456 
32146 C8H27B9N2Pd 
355.01 
3-(tmed)-3,1,2-PdC2B9H11 III/35a 2.2:829 
32147 C8H27B9S 
252.66 
nido-6-S-(n-C8H17)B9H10 III/35a 2.2:830 
32148 C8H28B4N8 
279.61 
7416-88-8 
N 
N 
BH 
N 
N 
BHH3C 
H3C CH3 
CH3 
N 
N 
BH 
N 
N 
BH 
H3C 
CH3 
CH3 
1,2,4,5,3,6-Tetrazadiborine, hexahydro-
1,2,4,5-tetramethyl-, dimer 
III/35a 2.2:831 
CH3 
32149 C8H28N9P3 
343.29 
N 
P 
N 
P NN 
H2N 
P 
NH2 
CH3H3C 
C8H28N9P3 III/35a 3.2:819 
N 
NN CH3H3C 
H3C CH3H3C CH3 
32150 C8H31B9Co 
283.56 
3,1,2-[endo-H-h5-(CH3)6H]CoC2B9H11 III/35a 2.2:832 
32151 C8H32Al2B18 
376.9 
commo-3,3'-Al[exo-8,9-(m-H)2AlEt2-(3,1,2-
AlC2B9H9)(3',1',2'-AlC2B9H11)] 
III/35a 2.2:833 
32152 C8H34B11N 
263.28 
[NEt4]+ [B11H14]-III/35a 2.2:143 
32153 C8K4N8Nb2S12 
935.12 
K4[Nb2(S2)2(NCS)8] III/35b 3.2:1042 
32154 C8N8O3Re2 
628.55 Re(2-) O 
Re(2-)
NC 
O OCN 
CN 
CN CNCN 
CNNC 
cis/trans-C8N8O3Re2 III/35e 2.2.7:4839 
32155 C9F20O2 
520.06 
OOF3C CF3 2-[Difluoro-(2,2,2-trifluoro-1,1-bis-
trifluoromethyl-ethoxy)-methoxy]-
III/35b 2.2:669 
F3C CF3 F FA CF3F3C 1,1,1,3,3,3-hexafluoro-2-trifluoromethyl-
propane 
32156 C9Fe2O9 
363.78 
O O 
OO 
C9Fe2O9 III/35e 2.2.7:4626 
CC 
Fe Fe 
C 
O 
C O 
C 
O 
CO 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32157 C9Fe3O10 
435.62 
Fe Fe 
O(2-) 
O 
C 
C O 
C 
O 
CO 
3-O-triiron-nonacarbonyl (2-) III/35e 2.2.7:4627 
Fe CC 
OO 
CC C 
O O 
O 
32158 C9H3Br2F18O3P 
691.87 
CF3 
PO 
F3C 
CF3 
Br 
O 
CF3 C9H3Br2F18O3P III/35a 3.2:820 
Br 
OF3C 
CF3 
32159 C9H3Cl2F18O3P 
602.97 
CF3 
PO 
F3C 
CF3 
Cl 
O 
CF3 C9H3Cl2F18O3P III/35a 3.2:821 
Cl 
OF3C 
CF3 
32160 C9H3F4NO 
217.12 
O 
F 
F 4,5,6,7-Tetrafluoro-1H-indole-3-
carbaldehyde 
III/35c2 2.2:544 
F NH 
F 
32161 C9H3F20O3P 
570.06 
CF3 
PO 
F3C 
CF3 
F 
O 
CF3 C9H3F20O3P III/35a 3.2:822 
F 
OF3C 
CF3 
32162 C9H4BF18O3 
512.91 
CF3 C9H4BF18O3 
-III/35a 2.2:835 
OCF3 CF3 
BH(-) 
O OF3C 
CF3F3C 
32163 C9H4BFe3O9 
434.47 
[Fe3(CO)9BH4]-III/35a 2.2:836 
32164 C9H4Br3NO 
381.85 
Br Br 3,6,8-Tribromo-1H-quinolin-2-one III/35c2 2.2:545 
ONH 
Br 
32165 C9H4ClNO4 
225.59 
38464-20-9 
O O 
NO2 
Cl 4-Chloro-3-nitro-chromen-2-one III/35e 2.2.1:865; 
III/35e 2.2.3:3531 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32166 C9H4F3NO 
199.13 
O 4-(2,2,2-Trifluoro-acetyl)-benzonitrile III/35e 2.2.1:866 
CF3 
NC 
32167 C9H4F6O 
242.12 
O 2,2,2-Trifluoro-1-(4-trifluoromethyl-phenyl)-
ethanone 
III/35e 2.2.1:867 
74853-66-0 CF3 
F3C 
32168 C9H4FeO7 
279.97 
O 
FeCO C O 
O O C9H4FeO7 III/35c4 2.2:832 
C C 
O O 
32169 C9H4N4 
168.16 C(-) 
CN C9H4N4 III/35b 3.2:1043 
CNN(+) 
NC 
32171 C9H5BFe3O9 
435.48 
FeCO 
Fe 
Fe 
BH 
C OH 
H C 
HH C 
O 
C 
O 
C 
Fe3(CO)9BH5 III/35a 2.2:837; 
III/35c4 2.2:833 
OO 
C CC 
OO 
O 
32172 C9H5BrF6MnO3P 
440.94 
(delocalized system) 
Br 
C9H5BrF6MnO3P III/35c4 2.2:834 
Mn(+)C O 
P(-)F 
FF 
F 
F 
F 
C 
C 
O 
O 
32173 C9H5BrO2 
225.04 Br 
O 
O 
5-Bromo-cyclohepta[b]furan-4-one III/35c2 2.2:546 
32174 C9H5ClF6MnO3P 
396.49 
Cl 
F 
C9H5ClF6MnO3P III/35c4 2.2:835 
P(-) FF 
FF 
F 
Mn(+)C O 
C 
CO 
O 
32175 C9H5Cl3F2O 
273.49 
Cl 
FF 
Cl 
Cl 
Cl 
Cl 
+ 
F 
Cl 
F (R,S)-2-Chloro-1-(3,4-dichloro-phenyl)-3,3-
difluoro-prop-2-en-1-ol 
III/35b 2.2:670 
OH OH 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32176 C9H5FN4 
188.16 NH 
CN 2-[(4-Fluoro-phenyl)-hydrazono]-
malononitrile 
III/35b 3.2:1044 
N CN 
F 
32177 C9H5FOS 
180.2 
S 
F 
O 
3-Fluoro-thiochromen-2-one III/35b 2.2:671 
32178 C9H5FO2 
164.13 
O 
F 
O 
3-Fluoro-chromen-2-one III/35b 2.2:672 
32179 C9H5FO2S 
196.2 
O 
F 
S 
OH 3-Fluoro-4-hydroxy-chromene-2-thione III/35b 2.2:673 
32180 C9H5F2NO 
181.14 
F 3,8-Difluoro-1H-quinolin-2-one III/35b 2.2:674 
NH O 
F 
32181 C9H5F3 
170.13 
Ph CF3 Trifluoroprop-1-ynyl-benzene III/35b 2.2:676 
32182 C9H5F3N2 
198.15 
N 
N 
F3C 
2-Trifluoromethyl-quinoxaline III/35b 2.2:677 
32183 C9H5F3N2O 
214.14 
O 
N(+) 
F3C 
N(-) 2-Diazo-1-(4-trifluoromethyl-phenyl)-
ethanone 
III/35e 2.2.1:868 
32184 C9H5F3O 
186.13 CF3 
2-Trifluoromethyl-benzofuran III/35c2 2.2:547 
O 
32185 C9H5F5O2 
240.13 F 
F 
F 
3-Pentafluorophenyl-propionic acid III/35b 2.2:679 
COOHF 
F 
32186 C9H5F5O2 
240.13 F 
F 
F F 
F 
F 
(R,S)-2-Pentafluorophenyl-propionic acid III/35b 2.2:678 
F 
COOH COOH+ 
F 
CH3F CH3F 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32187 C9H5F6MnN3O3P 
403.06 
N3 
F 
C9H5F6MnN3O3P III/35c4 2.2:836 
P(-) FF 
FF 
F 
Mn(+)C O 
C 
CO 
O 
32188 C9H5N3O 
171.16 
O 
N(-) 
N(+) 
NC 
4-(2-Diazo-acetyl)-benzonitrile III/35e 2.2.1:869 
32189 C9H5N3O2 
187.16 
O 
N(+) 
N 
Ph 
O(-) 
CN C9H5N3O2 III/35e 2.2.1:870; 
III/35e 2.2.2:2792 
32190 C9H5N3O2 
187.16 
NH ONC 2,3-Dioxo-1,2,3,4-tetrahydro-quinoxaline-6-
carbonitrile 
III/35e 2.2.1:871 
NH O 
32191 C9H6BrFO2 
245.04 
O O 3-Bromo-4-fluoro-chroman-2-one III/35b 2.2:680 
Br 
F 
32192 C9H6BrF3O2 
283.04 
O 4-Bromo-benzoic acid 2,2,2-trifluoro-ethyl 
ester 
III/35e 2.2.1:872 
O CF3 
Br 
32193 C9H6BrMnO3 
296.98 O 
(delocalized system)C9H6BrMnO3 III/35c4 2.2:837 
Br 
C(-) 
Mn(+) 
C 
C 
OC 
O 
32194 C9H6BrNO 
224.05 
O 
Br 
NH 
3-Bromo-1H-quinolin-2-one III/35c2 2.2:548 
32195 C9H6BrNO3 
256.05 O 
NH 6-(2-Bromo-acetyl)-3H-benzooxazol-2-one III/35c2 2.2:549 
Br O 
O 
32196 C9H6ClFO 
184.59 
Ph 
Cl 
O 
F (E)-3-Fluoro-3-phenyl-acryloyl chloride III/35b 2.2:681 
32197 C9H6ClFO 
184.59 
O 
Cl 
Ph 
F 
(Z)-3-Fluoro-3-phenyl-acryloyl chloride III/35b 2.2:682 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32198 C9H6ClMnO3 
252.53 
(delocalized system) 
O 
C(-) 
Mn(+) 
C 
O 
C 
OC 
Cl 
C9H6ClMnO3 III/35c4 2.2:838 
32199 C9H6ClMnO3 
252.53 
(delocalized system) 
O 
CH(-) 
Mn(+) 
C 
O 
C 
OCCl 
C9H6ClMnO3 III/35c4 2.2:839 
32200 C9H6DNO 
146.16 
DO 
N 2-(5-Deutero-furan-2-ylIII/35c2 2.2:550 
32201 C9H6F 
133.14 
(delocalized system) 
C(+) F 
C9H6F III/35b 2.2:683 
32202 C9H6FNO2 
179.15 
O 
F 
NH 
OH 3-Fluoro-2-imino-2H-chromen-4-ol III/35b 2.2:684 
32203 C9H6F2 
152.14 F 
F 
3,5]nona-
1(7),2,5-triene 
III/35b 2.2:685 
32204 C9H6F2O 
168.14 
F 
O 
F 
Ph 
l fluoride III/35b 2.2:686 
32205 C9H6F2O2 
184.14 Ph 
FA 
FB 
COOH 
III/35b 2.2:688 
32206 C9H6F2O2 
184.14 
O O 
F 
F 
(3R,4S)-3,4-Difluoro-chroman-2-one III/35b 2.2:687 
32207 C9H6F3NO 
201.15 
NC 
OH 
CF3 
NC 
OH 
CF3+ 
l)-
benzonitrile 
III/35b 2.2:689 
32208 C9H6F3NO2 
217.15 NO2 
F3C 
1-(2-Nitro-vinylIII/35e 2.2.3:3532 
)-pyridine 
4,4-Difluoro-tricyclo[5.2.0.0(Z)-2-Fluoro-3-phenyl-acryloy(E)-2,3-Difluoro-3-phenyl-acrylic acid 
4-((R,S)-2,2,2-Trifluoro-1-hydroxy-ethy)-4-trifluoromethyl-benzene 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32209 C9H6F3NO4 
249.14 
72511-60-5 
O2N 
O 
O CF3 
4-Nitro-benzoic acid 2,2,2-trifluoro-ethyl 
ester 
III/35e 2.2.1:874; 
III/35e 2.2.3:3533 
32210 C9H6F4 
190.14 
Ph 
F 
CF3 
((Z)-1,3,3,3-Tetrafluoro-propenyl)-benzene III/35b 2.2:691 
32211 C9H6F4O2 
222.14 
O 4-Fluoro-benzoic acid 2,2,2-trifluoro-ethyl 
ester 
III/35e 2.2.1:875 
O CF3 
F 
32212 C9H6F4O2 
222.14 
O 
O 
F 
F 
F F 
2,2,4,4-Tetrafluoro-3,4-dihydro-2H-
benzo[b][1,4]dioxepine 
III/35b 2.2:692 
32213 C9H6F6 
228.13 
1-(2,2,2-Trifluoro-ethyl)-3-trifluoromethyl-
benzene 
III/35b 2.2:693 
CF3 
F3C 
32214 C9H6F6MnO3P 
362.04 C 
O 
F 
F 
F 
Tricarbonyl-benzene-manganese(I) 
hexafluorophosphate 
III/35c4 2.2:840 
Mn(+) P(-) 
C F F 
OC F 
O 
32215 C9H6F6N2 
256.15 
CF3 2,4-Bis-trifluoromethyl-6,7-dihydro-5H-
cyclopentapyrimidine 
III/35b 2.2:694 
N 
N CF3 
32216 C9H6F6OS 
276.2 
S 
O 
CF3 
(1,1,1,3,3,3-Hexafluoro-propane-2-sulfinyl)benzene 
III/35b 2.2:695 
Ph 
CF3 
32217 C9H6F7OP 
294.11 
F 
Ph 
P 
O 
CF3 
CF3 
C9H6F7OP III/35a 3.2:823 
32218 C9H6F13NO2 
407.13 
NO2F13C6 
1,1,1,2,2,3,3,4,4,5,5,6,6-Tridecafluoro-7-
methyl-7-nitro-octane 
III/35b 2.2:696 
32219 C9H6Fe2O6S 
353.89 CH2C 
O 
O O 
C9H6Fe2O6S III/35c4 2.2:841 
C C 
Fe Fe 
S 
CH3 
C 
O 
C O 
C 
O 
32220 C9H6N2 
142.16 
NC indole-5-carbonitrile; 
1H-Indole-5-carbonitrile 
III/35b 3.2:1045 
15861-24-2 
NH 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32221 C9H6N2O 
158.16 
O CH3 
NC 
CN 
2-(1-Furan-2-yl-ethylidene)-malononitrile III/35c2 2.2:552 
32222 C9H6N2O 
158.16 
NC 
O 
2-Oxo-2,3-dihydro-1H-indole-5-carbonitrile III/35c2 2.2:551 
NH 
32223 C9H6N2O2 
174.16 
NC 
NO2 
4-(2-Nitro-vinyl)-benzonitrile III/35e 2.2.3:3534 
32224 C9H6N2O2 
174.16 
NO2 5-Nitrochinolin; 
5-Nitroquinoline; 
III/35e 2.2.3:3535 
607-34-1 Quinoline, 5-nitro-
N 
32225 C9H6N2O2 
174.16 
O2N 6-Nitro-quinoline; 
6-Nitrochinolin; 
III/35e 2.2.3:3536 
613-50-3 6-Nitroquinoline; 
N Quinoline, 6-nitro-
32226 C9H6N2O2 
174.16 
607-35-2 
N 
8-Nitro-quinoline; 
8-Nitrochinolin; 
8-Nitroquinoline; 
Quinoline, 8-nitro-
III/35e 2.2.3:3537 
NO2 
32227 C9H6N2O2 
174.16 
NO2 Isoquinoline, 5-nitro-; 
5-Nitroisochinolin; 
III/35e 2.2.3:3538 
607-32-9 5-Nitroisoquinoline 
N 
32228 C9H6N2O2 
174.16 
N Quinoxaline-2-carboxylic acid; 
2-Quinoxalinecarboxylic acid 
III/35b 3.2:1046 
879-65-2 
N COOH 
32229 C9H6N2SSe 
253.18 
N N 
Se 
4H-5-Thia-3-selena-1,2-diaza-
cyclopenta[a]naphthalene 
III/35c2 2.2:553 
S 
32230 C9H6N4 
170.17 
Ph 
NH 
N CN 
CN 2-(Phenyl-hydrazono)-malononitrile III/35b 3.2:1047 
32231 C9H6N4O 
186.17 
NH 3-Azido-1H-quinolin-4-one III/35c2 2.2:554 
N3 
O 
32232 C9H6O2 
146.14 
O Indan-1,3-dione; 
1H-Indene-1,3(2H)-dione 
III/35e 2.2.1:876 
606-23-5 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32233 C9H6O2 
146.14 
O 3-Methylene-3H-isobenzofuran-1-one; 
3-Methylene-3H-isobenzofuran-1-one; 
III/35e 2.2.1:877 
3453-63-2 
O 
Methylenephthalide 
CH2 
32234 C9H6O3 
162.14 
4792-30-7 
O 
O 1,3-Isobenzofurandione, 4-methyl-; 
4-Methyl-isobenzofuran-1,3-dione; 
3-Methylphthalic anhydride; 
3-Methylphthalsureanhydrid 
III/35e 2.2.1:880 
O 
CH3 
32235 C9H6O3 
162.14 
O Isochroman-1,3-dione III/35e 2.2.1:881 
O 
O 
32236 C9H6O4 
178.14 
O 4-Methoxy-isobenzofuran-1,3-dione; 
3-Methoxy-phthalic acid anhydride; 
III/35e 2.2.1:882 
14963-96-3 
O 
3-Methoxyphthalic anhydride 
O 
O 
H3C 
32237 C9H6O6W 
393.98 
O 
C 
O 
C CH2 
C9H6O6W III/35c4 2.2:842 
CO W 
C C O CH3 
O O 
32238 C9H6O6W 
393.98 
O 
CO W 
C 
O 
C O 
C9H6O6W III/35c4 2.2:843 
C C 
O O 
32239 C9H7BrO 
211.06 
Br 
O 
(E)-3-(2-Bromo-phenyl)-propenal III/35e 2.2.1:883 
32240 C9H7BrO 
211.06 
Br 
O 
(E)-3-(3-Bromo-phenyl)-propenal III/35e 2.2.1:884 
32241 C9H7BrO 
211.06 
Br 
O 
(E)-3-(4-Bromo-phenyl)-propenal III/35e 2.2.1:885 
32242 C9H7BrO 
211.06 
O 
Br 
6-Bromo-indan-1-one III/35e 2.2.1:886 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32243 C9H7BrO2 
227.06 
OOH 
Br 
4-Bromo-7-hydroxy-indan-1-one III/35e 2.2.1:887 
32244 C9H7Br2FO2 
325.96 Br 
Br F 
O 
O 
Ph Br 
Br F 
O 
O 
Ph+ 
(R,S)-2,3-Dibromo-2-fluoro-propionic acid 
phenyl ester 
III/35b 2.2:697 
32245 C9H7Br2NO 
304.97 
Br 
N 
3,8-Dibromo-5,6-dihydro-pyrrolo[1,2-
a]azepin-7-one 
III/35c2 2.2:555 
O 
Br 
32246 C9H7ClF2O 
204.6 
Cl 
F 
FOH 
Ph 
Cl 
F 
FOH 
Ph+ 
(R,S)-2-Chloro-3,3-difluoro-1-phenyl-prop-
2-en-1-ol 
III/35b 2.2:698 
32247 C9H7ClN2 
178.62 
H2N 
ClN 
2-Chloro-quinolin-6-ylamine III/35c2 2.2:556 
32248 C9H7ClN2O2 
210.62 
6-Chloro-pyrrolo[2,3-b]pyridine-1-carboxylic 
acid methyl ester 
III/35c2 2.2:557 
Cl NN 
O O 
CH3 
32249 C9H7ClN2S 
210.68 
Cl 
N 
8-Chloro-2,3-dihydro-
benzo[4,5]imidazo[2,1-b]thiazole 
III/35c2 2.2:558 
S 
N 
32250 C9H7ClO 
166.6 
Cl 
O 
(E)-3-(2-Chloro-phenyl)-propenal III/35e 2.2.1:888 
32251 C9H7ClO 
166.6 O 
Cl (E)-3-(3-Chloro-phenyl)-propenal III/35e 2.2.1:889 
32252 C9H7ClO 
166.6 O 
Cl 
(E)-3-(4-Chloro-phenyl)-propenal III/35e 2.2.1:890 
32253 C9H7ClO2 
182.6 
COOH (E)-3-(4-Chloro-phenyl)-acrylic acid; 
(E)-p-Chlorocinnamic acid 
III/35e 2.2.1:891 
940-62-5 
Cl 
32254 C9H7ClS 
182.67 
30489-80-6 CH3 
Cl 
S 
5-Chloro-2-methyl-benzo(b)thiophene; 
5-Chloro-2-methyl-benzo[b]thiophene 
III/35c2 2.2:559 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32255 C9H7Cl2FO 
221.06 Cl 
F 
O 
1-(2,2-Dichloro-1-fluoro-vinyl)-3-methoxy-
benzene 
III/35b 2.2:700 
H3C 
Cl 
32256 C9H7Cl2P 
217.03 P 
Cl C9H7Cl2P III/35a 3.2:824 
Cl 
32257 C9H7CrLiO3 
222.09 
(delocalized system) C9H7CrLiO3 III/35c4 2.2:844 
CH(-) 
Cr C OLi(+) 
C 
O C 
O 
32258 C9H7CrNO5 
261.15 
O 
C 
O 
C N 
C9H7CrNO5 III/35c4 2.2:845 
CO Cr 
C C 
O O 
32259 C9H7FN2O 
178.16 
Ph 
NH 
N 
F 
O 
4-Fluoro-1-phenyl-1,2-dihydro-pyrazol-3-
one 
III/35b 2.2:701 
32260 C9H7FN2O2S 
226.23 N 
NH 
O 
O F Benzothiazol-2-yl-carbamic acid 
fluoromethyl ester 
III/35b 2.2:702 
S 
32261 C9H7FO 
150.15 O 
F 
(E)-3-(2-Fluoro-phenyl)-propenal III/35e 2.2.1:892 
32262 C9H7FO 
150.15 O 
F (E)-3-(3-Fluoro-phenyl)-propenal III/35e 2.2.1:893 
32263 C9H7FO 
150.15 O 
F 
(E)-3-(4-Fluoro-phenyl)-propenal III/35e 2.2.1:894 
32264 C9H7FO2 
166.15 Ph 
O 
O 
F 
H2C 
2-Fluoro-acrylic acid phenyl ester III/35b 2.2:703 
32265 C9H7FO2 
166.15 
F (E)-3-Fluoro-3-phenyl-acrylic acid III/35b 2.2:704 
Ph 
COOH 
32266 C9H7FO2 
166.15 COOH 
Ph 
F 
(Z)-3-Fluoro-3-phenyl-acrylic acid III/35b 2.2:705 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32267 C9H7FO2 
166.15 
COOH (E)-3-(4-Fluoro-phenyl)-acrylic acid; 
(E)-p-Fluorocinnamic acid 
III/35e 2.2.1:895 
14290-86-9 
F 
32268 C9H7F3O 
188.15 
O 1-[4-(Trifluoromethyl)phenyl]ethan-1-one; 
1-(4-Trifluoromethyl-phenyl)-ethanone 
III/35e 2.2.1:896 
709-63-7 CH3 
F3C 
32269 C9H7F3O 
188.15 
OH 
FC 
FB 
FAPh 
OH 
FC 
FB 
FAPh+ 
(R,S)-2,3,3-Trifluoro-1-phenyl-prop-2-en-1-
ol 
III/35b 2.2:706 
32270 C9H7F3O2 
204.15 
O CF3 
O 
4-(2,2,2-Trifluoro-ethoxy)-benzaldehyde III/35b 2.2:707 
32271 C9H7F3O2 
204.15 
HOOC 
CF3 
3-(2,2,2-Trifluoro-ethyl)-benzoic acid III/35b 2.2:708 
32272 C9H7F3O2 
204.15 
2557-13-3 CH3O 
O 
F3C 
3-Trifluoromethyl-benzoic acid methyl ester III/35e 2.2.1:899 
32273 C9H7F3O2 
204.15 
2967-66-0 CH3 
O 
O 
F3C 
methyl p-trifluoromethylbenzoate; 
4-Trifluoromethyl-benzoic acid methyl ester 
III/35e 2.2.1:900 
32274 C9H7F3O2S 
236.21 CF3 
CH2 
S 
OO 
Ph 
(3,3,3-Trifluoro-prop-1-ene-2-sulfonyl)-
benzene 
III/35b 2.2:709 
32275 C9H7F6MnNO3P 
377.06 
NH2 
F 
Tricarbonyl-aniline-manganese(I) 
hexafluorophosphate 
III/35c4 2.2:846 
P(-) FF 
FF 
Mn(+) C O 
F 
C 
CO 
O 
32276 C9H7F8OP 
314.11 Ph PH 
FA CF3 
C9H7F8OP III/35b 2.2:710 
O 
FA CF3 
32277 C9H7FeO3 
219.0 (-) 
Fe(2+) C O 
Iron, tricarbonyl[(1,2,3,4,5-.)-1-methyl-2,4-
cyclopentadien-1-yl]- (1+) 
III/35e 2.2.7:4628 
C 
O C 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32278 C9H7MnO3 
218.09 
12108-13-3 
Mn(+) 
C 
O 
C 
O Manganese, tricarbonyl[(1,2,3,4,5-.)-1-
methyl-2,4-cyclopentadien-1-yl]-; 
Manganese, tricarbonyl(methyl-pcyclopentadienyl)-; 
III/35e 2.2.7:4671 
(-) 
C 
O 
Manganese, 
tricarbonyl(methylcyclopentadienyl)-; 
Methylcyclopentadienylmanganese 
tricarbonyl 
32279 C9H7MnO3 
218.09 
(delocalized system) 
O 
C9H7MnO3 III/35c4 2.2:847 
CH(-) 
Mn(+) 
C 
C 
OC 
O 
32280 C9H7NO 
145.16 
O 4-Acetyl-benzonitrile; 
Benzonitrile, 4-acetyl-; 
III/35e 2.2.1:902 
1443-80-7 CH3 
Benzonitrile, p-acetyl-; 
4'-Cyanoacetophenone 
NC 
32281 C9H7NO 
145.16 
1532-72-5 N(+) 
O(-) 
Isoquinoline, 2-oxide; 
Isoquinoline 2-oxide 
III/35e 2.2.3:3540 
32282 C9H7NO 
145.16 
Quinoline 1-oxide III/35e 2.2.3:3539 
1613-37-2 
N(+) 
O(-) 
32283 C9H7NO2 
161.16 
13531-48-1 
O 
O 
NC CH3 
Benzoic acid, 3-cyano-, methyl ester; 
3-Cyano-benzoic acid methyl ester; 
Methyl m-cyanobenzoate 
III/35e 2.2.1:906 
32284 C9H7NO2 
161.16 
1129-35-7 
O 
O 
NC 
CH3 
4-Cyano-benzoic acid methyl ester; 
Methyl 4-cyanobenzoate 
III/35e 2.2.1:903, 
904 
32285 C9H7NO2 
161.16 
5843-46-9 
O 
N 
C 
H3C 
O 
Benzoyl isocyanate, 4-methyl-; 
4-Methyl-benzoyl isocyanate 
III/35e 2.2.1:905 
32286 C9H7NO2 
161.16 
550-44-7 
N 
O 
CH3 
1H-Isoindole-1,3(2H)-dione, 2-methyl-; 
2-Methyl-isoindole-1,3-dione; 
N-Methylphthalimide; 
Phthalimide, N-methyl-
III/35e 2.2.1:907 
O 
32287 C9H7NO2 
161.16 
O 
H3C 
ON 1-Furo[2,3-b]pyridin-5-yl-ethanone III/35c2 2.2:560 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32288 C9H7NO2 
161.16 
1127-45-3 
N(+) 
8-Hydroxychinolin-N-oxid; 
1-Oxy-quinolin-8-ol; 
Quinolin-8-ol 1-oxide; 
8-Quinolinol, 1-oxide 
III/35e 2.2.3:3541 
O(-)OH 
32289 C9H7NO3 
177.16 
O 
H3C 
O 
O 
NH 6-Acetyl-3H-benzooxazol-2-one III/35c2 2.2:561 
32290 C9H7NO3 
177.16 
H3C OO 7-Methyl-6H-pyrano[3,2-c]pyridine-2,5-
dione 
III/35c2 2.2:562 
NH 
O 
32291 C9H7NO4 
193.16 
(E/Z) 3-(4-Nitro-phenyl)-acrylic acid III/35e 2.2.1:908 
COOH 
O2N 
32292 C9H7NS2 
193.29 N 
S Ph 
S 
3-Phenyl-[1,2,4]dithiazine III/35b 3.2:1049 
32293 C9H7N3 
157.17 
3189-57-9 CN 
CN 
H3C 
N(+) 
C(-) 
4-Methylpyridinium dicyanomethylide III/35b 3.2:1050 
32294 C9H7N3 
157.17 N 
NN 
Ph 
4-Phenyl-[1,2,3]triazine III/35c2 2.2:563 
32295 C9H7N3O4S 
253.24 
O 
NO2 (5-Nitro-benzo[1,2,3]thiadiazol-4-yl)-acetic 
acid methyl ester 
III/35c2 2.2:564 
CH3 
O 
N 
S N 
32296 C9H7Na 
138.14 
(delocalized system) C9H7Na III/35c4 2.2:848 
Na(+) 
CH(-) 
32297 C9H8BNO 
156.98 
C9H8BNO III/35a 2.2:838 
N 
O BH2 
32298 C9H8BrNO 
226.07 N 
CH3 5-Bromo-2-isocyanato-1,3-dimethyl-
benzene 
III/35e 2.2.1:909 
C 
O 
Br CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32299 C9H8BrNO3 
258.07 
O 
C2H5 
OO 
BrN 
2-Bromo-5-formyl-nicotinic acid ethyl ester III/35c2 2.2:565 
32300 C9H8Br2O2 
307.97 Br 
BrO 
O 
5,5-Dibromo-5,6,7,8-tetrahydro-
cyclohepta[b]furan-4-one 
III/35c2 2.2:566 
32301 C9H8ClFO 
186.61 
FOH FOH (E)-(R,S)-2-Chloro-3-fluoro-1-phenyl-prop-
2-en-1-ol 
III/35b 2.2:711 
Ph Ph+ 
Cl Cl 
32302 C9H8ClF3O 
224.61 
Ph 
OH 
CF3 
Cl 
2-Chloro-3,3,3-trifluoro-1-phenyl-propan-1-
ol 
III/35b 2.2:712 
32303 C9H8ClF3S 
240.67 Cl 
S 
Ph 
(R,S)-(1-Chloromethyl-2,2,2-trifluoro-
ethylsulfanyl)-benzene 
III/35b 2.2:713 
CF3 
+ 
S 
ClPh 
CF3 
32304 C9H8ClNOS 
213.68 
CH3S 
Cl 
O 
NH 
CH3S 
Cl 
O 
NH 
+ 
(R,S)-5-Chloro-3-methylsulfanyl-1,3-
dihydro-indol-2-one 
III/35c2 2.2:567 
32305 C9H8Cl4N3O3P3W 
624.75 (-) C9H8Cl4N3O3P3W III/35a 3.2:825 
P 
W(+) 
NN 
C 
O 
C 
OO C 
PPCl Cl 
NCl Cl 
32306 C9H8CrN2O3 
244.17 
CrCO 
NH2H2N 
Tricarbonyl-(p-diaminobenzene)- chromium III/35c4 2.2:849 
C 
OC 
O 
32307 C9H8F 
135.16 
(delocalized system) 
C(+) F 
H3C 
C9H8F III/35b 2.2:715 
H3C 
32308 C9H8FI 
262.06 
Ph 
CH3((Z)-1-Fluoro-2-iodo-propenyl)-benzene III/35b 2.2:716 
I 
F 
32309 C9H8FNO2 
181.16 
F NO2 
F NO2 
+ 
(R,S)-1-Fluoro-1-nitro-indan III/35b 2.2:717 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32310 C9H8F2 
154.16 
F 
F 
5,6-Difluoro-indan III/35b 2.2:719 
32311 C9H8F2O 
170.16 
O 
F 
2,2-Difluoro-1-p-tolyl-ethanone III/35b 2.2:722 
F 
H3C 
32312 C9H8F2O 
170.16 F 
F (2,2-Difluoro-1-methoxy-vinyl)-benzene III/35b 2.2:723 
Ph 
O CH3 
32313 C9H8F2O 
170.16 
F 
OH 
Ph 
F 
+ 
F 
OH 
Ph 
F (E,Z)-(R,S)-2,3-Difluoro-1-phenyl-prop-2- 
en-1-ol 
III/35b 2.2:724 
32314 C9H8F2O 
170.16 
FBOH (R,S)-3,3-Difluoro-1-phenyl-prop-2-en-1- ol III/35b 2.2:725 
Ph FA 
+ 
FBOH 
Ph FA 
32315 C9H8F2O2 
186.16 
O F 4-Methyl-benzoic acid difluoromethyl ester III/35b 2.2:728 
O F 
H3C 
32316 C9H8F2O3 
202.16 
O F 4-Methoxy-benzoic acid difluoromethyl 
ester 
III/35b 2.2:730 
O F 
O 
H3C 
32317 C9H8F3NO 
203.16 
F3C 
NH 
O 
CH3 
N-Methyl-4-trifluoromethyl-benzamide; 
N-Methyl-4-trifluoromethyl-benzamide 
III/35e 2.2.1:910 
32318 C9H8F3NO2 
219.16 
F3C NH 
O 
O 
CH3 
(3-Trifluoromethyl-phenyl)-carbamic acid 
methyl ester 
III/35e 2.2.1:911 
32319 C9H8F3NO4 
251.16 
O 
H5C2 
O 
OH 4,6-Dihydroxy-2-trifluoromethyl-nicotinic 
acid ethyl ester 
III/35c2 2.2:568 
F3C N OH 
32320 
208.15 
C9H8F4O 
Ph CF3 
CH3F O 
+ 
Ph CF3 
F O CH3 ((R,S)-1,2,2,2-Tetrafluoro-1-methoxy-ethyl)-
benzene 
III/35b 2.2:731 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32321 C9H8F4S 
224.22 
S F 
H3C 
S 
CF3 
F 
+ 
1-Methyl-4-((R,S)-1,2,2,2-tetrafluoro-
ethylsulfanyl)-benzene 
III/35b 2.2:733 
H3C 
CF3 
32322 C9H8F4S 
224.22 
F ((R,S)-1,2,2,2-Tetrafluoro-
ethylsulfanylmethyl)-benzene 
III/35b 2.2:734 
Ph S CF3 
+ 
F 
Ph S CF3 
32323 C9H8F4S 
224.22 
F [(R,S)-Fluoro-(2,2,2-trifluoro-ethylsulfanyl)-
methyl]-benzene 
III/35b 2.2:735 
Ph S CF3 
+ 
F 
Ph S CF3 
32324 C9H8F6O 
246.15 
O 
F3C CF3 F3C 
+ 
CF3 
O 
(R,S)-6,6-Bis-trifluoromethyl-cyclohex-3-
enecarbaldehyde 
III/35b 2.2:736 
32325 C9H8F12O4 
408.14 
OOF3C CF3 1,1,1-Trifluoro-2-[tris-(2,2,2-trifluoro-
ethoxy)-methoxy]-ethane 
III/35b 2.2:737 
O O 
CF3F3C 
32326 C9H8FeO3 
220.0 (-) 
Fe(+)CO 
Acetyl-cyclopentadienyl-iron-dicarbonyl III/35c4 2.2:850 
C 
OH3C 
O 
32327 C9H8MoO3 
260.1 
(-) 
(unknown relative positions) 
Mo(+)C 
O 
H3C 
C 
O 
C 
O 
Methyl-cyclopentadienyl-molybdenum-
tricarbonyl (cis/trans) 
III/35c4 2.2:852 
32328 C9H8N2 
144.17 N 
NC 
4-Aziridin-1-yl-benzonitrile III/35b 3.2:1051 
32329 C9H8N2 
144.17 
1126-00-7 
N 
N Ph 
1-Phenyl-1H-pyrazole; 
1H-Pyrazole, 1-phenyl- 
III/35b 3.2:1053 
32330 C9H8N2 
144.17 
2458-26-6 
Ph N 
NH 
3-Phenyl-1(2)H-pyrazole; 
3-Phenyl-1H-pyrazole 
III/35c2 2.2:569 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32331 C9H8N2 
144.17 
7251-61-8 
N 2-Methylchinoxalin; 
2-Methylquinoxaline; 
Quinoxaline, 2-methyl-
III/35b 3.2:1052; 
III/35c2 2.2:570 
N CH3 
32332 C9H8N2 
144.17 
NH3C 6-Methylquinoxaline; 
Quinoxaline, 6-methyl-
III/35b 3.2:1054 
6344-72-5 
N 
32333 C9H8N2O 
160.17 
35704-19-9 
NH CH3 
NC 
O 
Acetamide, N-(4-cyanophenyl)-; 
N-(4-Cyano-phenyl)-acetamide; 
N-(4-cyanophenyl)acetamide; 
N1-(4-cyanophenyl)acetamide 
III/35b 3.2:1055 
32334 C9H8N2O 
160.17 Ph N(+) 
N(-) 
O 1-Diazo-3-phenyl-propan-2-one III/35e 2.2.1:912 
32335 C9H8N2O 
160.17 
O 
N(+) 
N(-) 
H3C 
2-Diazo-1-p-tolyl-ethanone III/35e 2.2.1:914 
32336 C9H8N2O 
160.17 
O 
CH3 
4-Cyano-N-methyl-benzamide III/35e 2.2.1:915 
NH 
NC 
32337 C9H8N2OS 
192.24 NO 
S 
Ph 3-Phenyl-2-thioxo-imidazolidin-4-one III/35e 2.2.1:913 
NH 
32338 C9H8N2O2 
176.17 
6832-17-3 
O 
N(+) 
N(-) 
O 
H3C 
2-Diazo-1-(4-methoxy-phenyl)-ethanone III/35e 2.2.1:916 
32339 C9H8N2O2 
176.17 
OH 
N 
OH 
N 
1-Hydroxy-1H-quinolin-4-one oxime; 
(E)-1-Hydroxy-1H-quinolin-4-one oxime 
III/35c2 2.2:571 
32340 C9H8N2O2 
176.17 H3C 
O 6-Methoxy-1H-[1,7]naphthyridin-2-one III/35c2 2.2:572 
N 
ONH 
32341 C9H8N2O2 
176.17 
O 2-Methylamino-benzo[d][1,3]oxazin-4-one III/35c2 2.2:573 
O 
CH3 
NHN 
32342 C9H8N2O3 
192.17 
HO 
Ph 
O(-) 
N(+) 
O 
N 
(2-Oxy-4-phenyl-furazan-3-yl)-methanol III/35c2 2.2:574 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32343 C9H8N2S 
176.24 S 
NH 1-Phenyl-1,3-dihydro-imidazole-2-thione III/35c2 2.2:577 
17452-09-4 N 
Ph 
32344 C9H8N2S 
176.24 
Ph 
H3C 
N 
SN 
3-Methyl-4-phenyl-[1,2,5]thiadiazole III/35c2 2.2:576 
32345 C9H8N2S 
176.24 
50483-77-7 
H3C 
Ph 
N 
SN 
3-methyl-5-phenyl-1,2,4-thiadiazole; 
3-Methyl-5-phenyl-[1,2,4]thiadiazole 
III/35c2 2.2:575 
32346 C9H8N2S3 
240.37 
CH3 
S 
N S 
NS 
Ph 
3-Methylsulfanyl-6-phenyl-
[1,4,2,5]dithiadiazine 
III/35c2 2.2:578 
32347 C9H8N4O4 
236.18 
O2N 
O 
CH3 
CH3N 
NNO 
1-[5-Methyl-3-(5-nitro-furan-2-yl)-
[1,2,4]triazol-1-yl]-ethanone 
III/35c2 2.2:579 
32348 C9H8OS 
164.22 
O 
CH3 
S 
O 
CH3 
S 
+ 
(R,S)-3-Methyl-3H-benzo[b]thiophen-2-one III/35c2 2.2:581 
32349 C9H8OS 
164.22 
1H-Isothiochromene 2-oxide III/35c2 2.2:580 
S(+) 
O(-) 
32350 C9H8OS 
164.22 
O Thiochroman-4-one III/35e 2.2.1:919 
3528-17-4 
S 
32351 C9H8O2 
148.16 
(E/Z) 
Ph 
COOH 
3-Phenyl-acrylic acid III/35e 2.2.1:920 
32352 C9H8O2 
148.16 
O 
HO 
5-Hydroxy-indan-1-one III/35e 2.2.1:921 
32353 C9H8O2 
148.16 
6968-35-0 
OOH 7-Hydroxy-indan-1-one III/35e 2.2.1:922 
32354 C9H8O2 
148.16 OCH3 7-Methyl-3H-isobenzofuran-1-one; 
7-Methyl-3H-isobenzofuran-1-one 
III/35e 2.2.1:923 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32355 C9H8O2 
148.16 
O O Chroman-2-one III/35e 2.2.1:924 
32356 C9H8O2 
148.16 
CH3O 
O 2-Methyl-benzo[1,4]dioxine III/35c2 2.2:582 
32357 C9H8O2S 
180.22 
CH3 
S 
O O 2-Methyl-benzo[b]thiophene 1,1-dioxide III/35c2 2.2:583 
32358 C9H8O3 
164.16 
OH 
O 
O 
Di-furan-2-yl-methanol III/35c2 2.2:584 
32359 C9H8O3 
164.16 
O 4-Methoxy-3H-isobenzofuran-1-one III/35e 2.2.1:927 
4792-33-0 
O 
O 
H3C 
32360 C9H8O3 
164.16 
28281-58-5 
O 
OO 
H3C 7-Methoxy-3H-isobenzofuran-1-one III/35e 2.2.1:928 
32361 C9H8O3S 
196.22 
O 1,1-Dioxo-1.6-thiochroman-4-one III/35e 2.2.5:4218 
19446-96-9 
S 
O O 
32362 C9H8O3W 
348.0 
(-) 
(unknown relative positions) 
W(+)C 
O 
H3C 
C 
O 
C 
O 
Methyl-cyclpentadienyl-tungsten-tricarbonyl 
(cis/trans) 
III/35c4 2.2:853 
32363 C9H8O4 
180.16 
2345-34-8 
COOH 
O 
O 
H3C 
4-Acetoxy-benzoic acid; 
4-Acetoxybenzoic acid 
III/35e 2.2.1:929 
32364 C9H9BCl3N 
248.34 
Cl C9H9BCl3N III/35a 2.2:839 
NCl 
B 
Cl 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32365 C9H9BO2 
159.98 
O 
B 
O CH2 C9H9BO2 III/35a 2.2:840 
32366 C9H9BrF5P 
323.04 F 
F 
F 
F 
F 
P(+) Br(-) 
Trimethyl-pentafluorophenyl-phosphonium 
bromide 
III/35a 3.2:826 
32367 C9H9BrF6 
311.06 Br 
F3C CF3 F3C 
Br 
CF3 (R,S)-6-Bromo-1-methyl-5,5-bis-
trifluoromethyl-cyclohexene 
III/35b 2.2:738 
+ 
CH3 CH3 
32368 C9H9BrN2 
225.09 
H3C 
CH3 
N 
5-Bromo-1,2-dimethyl-2H-
cyclopenta[d]pyridazine 
III/35c2 2.2:585 
N 
Br 
32369 C9H9BrOS 
245.14 
O 
S 
Br 
C2H5 
4-Bromo-thiobenzoic acid S-ethyl ester III/35e 2.2.1:930 
32370 C9H9ClN2 
180.63 
CN 
Cl 
C2H5 
H3C 
N 
2-Chloro-4-ethyl-5-methyl-nicotinonitrile III/35c2 2.2:586 
32371 C9H9ClN2 
180.63 
NH2 
CH3 
Cl 
5-Chloro-3-methyl-1H-indol-2-ylamine III/35c2 2.2:587 
NH 
32372 C9H9ClO 
168.62 
OCH3 2,6-Dimethyl-benzoyl chloride III/35e 2.2.1:933 
Cl 
CH3 
32373 C9H9ClO 
168.62 
OCH3 2,4-Dimethyl-benzoyl chloride III/35e 2.2.1:932 
21900-42-5 Cl 
H3C 
32374 C9H9ClO 
168.62 
21900-46-9 
O 
Cl 
H3C 
CH3 2,3-Dimethyl-benzoyl chloride III/35e 2.2.1:931 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32375 C9H9ClOS 
200.69 
32376 C9H9ClO2 
184.62 
57486-68-7 
32377 C9H9ClO2 
184.62 
5406-33-7 
32378 C9H9ClO2 
184.62 
16331-46-7 
32379 C9H9ClO2 
184.62 
34040-63-6 
32380 C9H9ClO2 
184.62 
34040-64-7 
32381 C9H9ClO2 
184.62 
52449-43-1 
32382 C9H9ClO2 
184.62 
53088-68-9 
32383 C9H9ClO2 
184.62 
2403-54-5 
32384 C9H9ClO3Si 
228.7 
32385 C9H9Cl3O2 
255.53 
O 
S 
Cl 
C2H5 
4-Chloro-thiobenzoic acid S-ethyl ester III/35e 2.2.1:934 
Cl 
CH3 
O 
O 
Benzeneacetic acid, 2-chloro-, methyl 
ester; 
(2-Chloro-phenyl)-acetic acid methyl ester; 
Methyl (2-chlorophenyl)acetate 
III/35e 2.2.1:936 
O 
O 
CH3 
Cl 
Acetic acid 4-chloro-benzyl ester; 
p-chlorobenzyl acetate 
III/35e 2.2.2:2795 
O 
Cl 
O 
H5C2 
4-Ethoxy-benzoyl chloride III/35e 2.2.1:935 
O 
O 
CH3Cl 
3-Chloromethyl-benzoic acid methyl ester; 
Methyl 3-chloromethylbenzoate 
III/35e 2.2.1:939 
O 
O 
CH3 
Cl 
4-Chloromethyl-benzoic acid methyl ester; 
Methyl 4-(chloromethyl)benzoate 
III/35e 2.2.1:940 
O 
CH3 
O 
Cl 
(4-Chloro-phenyl)-acetic acid methyl ester; 
Methyl 4-chlorophenylacetate 
III/35e 2.2.1:938 
Cl 
CH3 
O 
O 
(3-Chloro-phenyl)-acetic acid methyl ester III/35e 2.2.1:937 
Cl 
O 
O 
2-(4-chloro-phenyl)-(1,3)dioxolane; 
2-(4-Chloro-phenyl)-[1,3]dioxolane 
III/35c2 2.2:588 
HC 
Si 
O 
CH 
O 
O 
CH 
Cl 
C9H9ClO3Si III/35e 2.2.2:2796 
O 
CCl3 
CH3 
O 
O 
CCl3 
CH3 
O 
+ 
(R,S)-5,5,5-Trichloro-4-furan-2-yl-pentan-2-
one 
III/35c2 2.2:589 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32386 C9H9Cl3O3 
271.52 O 
CH3 1,2,3-Trichloro-4,5,6-trimethoxy-benzene III/35e 2.2.1:941 
OO 
CH3H3C 
ClCl 
Cl 
32387 C9H9Co 
176.1 
12306-95-5 
(-) Co(+) 
Cobalt, (1,3-cyclobutadiene)-p-
cyclopentadienyl-; 
Cobalt, (.4-1,3-cyclobutadiene)(.5-2,4-
cyclopentadien-1-yl)-; 
III/35c4 2.2:854 
(p-Cyclopentadienyl)(p-
cyclobutadiene)cobalt 
32388 C9H9CrNO4 
247.17 
Cr(-) 
N(+)H3C CH2 
C O 
C9H9CrNO4 III/35c4 2.2:855 
C 
C 
C 
O 
O 
O 
32389 C9H9CrNO5 
263.17 
Cr(-) 
N(+)H3C 
CH3 O 
C 
C O 
C 
O C9H9CrNO5 III/35c4 2.2:856 
C 
CH3C 
O 
O 
32390 C9H9F 
136.17 
Ph 
F ((Z)-3-Fluoro-allyl)-benzene III/35b 2.2:953 
32391 C9H9FO 
152.17 
F (E)-3-Fluoro-3-phenyl-prop-2-en-1-ol III/35b 2.2:740 
Ph 
OH 
32392 C9H9FO 
152.17 
OH 
Ph 
(Z)-3-Fluoro-3-phenyl-prop-2-en-1-ol III/35b 2.2:741 
F 
32393 C9H9FO 
152.17 
O 
H3C 
F 
2-Fluoro-1-p-tolyl-ethanone III/35b 2.2:744 
32394 C9H9FO 
152.17 
Ph 
O 
CH2 
F (2-Fluoro-allyloxy)-benzene III/35b 2.2:746 
32395 C9H9FO 
152.17 Ph O 
(R,S)-2-Fluoro-3-phenyl-propionaldehyde III/35b 2.2:747 
F 
+ 
Ph O 
F 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32396 C9H9FO 
152.17 
Ph 
O 
F 
Ph 
O 
F 
+ 
(R,S)-2-Benzyl-2-fluoro-oxirane III/35b 2.2:742 
32397 C9H9FOSe 
231.13 
Ph 
Se 
O 
F 
CH3 ((E)-2-Fluoro-2-methoxy-vinylselanyl)-
benzene 
III/35b 2.2:749 
32398 C9H9FOSe 
231.13 
Ph 
Se 
F 
O 
CH3 
((Z)-2-Fluoro-2-methoxy-vinylselanyl)-
benzene 
III/35b 2.2:750 
32399 C9H9FO2 
168.16 
458-77-5 Ph O 
O 
F 
Benzyl fluoroacetate; 
Fluoro-acetic acid benzyl ester 
III/35b 2.2:752 
32400 C9H9F3 
174.16 
H3C 
CF3 
1-Methyl-4-(2,2,2-trifluoro-ethyl)-benzene III/35b 2.2:756 
32401 C9H9F3O 
190.16 
H3C 
OH 
CF3 
H3C 
OH 
CF3+ 
(R,S)-2,2,2-Trifluoro-1-p-tolyl-ethanol III/35b 2.2:759 
32402 C9H9F3O 
190.16 
426-54-0 Ph CF3 
OH 
Ph CF3 
OH 
+ 
1-Methyl-1-phenyl-2,2,2-trifluoroethanol; 
1,1,1-Trifluoro-2-phenyl-propan-2-ol; 
(R,S)-1,1,1-Trifluoro-2-phenyl-propan-2-ol 
III/35b 2.2:760 
32403 C9H9F3O 
190.16 Ph 
CF3 
OH 
(S)-1,1,1-Trifluoro-3-phenyl-propan-2-ol III/35b 2.2:758 
32404 C9H9F3OS 
222.23 S 
O 
C2H5F3C 
2-((Z)-2-Ethoxy-1-trifluoromethyl-vinyl)-
thiophene 
III/35b 2.2:761 
32405 C9H9F3O2 
206.16 
O CF3 
O 
H3C 
1-Methoxy-4-(2,2,2-trifluoro-ethoxy)-
benzene 
III/35b 2.2:763 
32406 C9H9F3O2 
206.16 
O 
OH 
CF3 
H3C O 
OH 
CF3 
H3C 
+ 
(R,S)-2,2,2-Trifluoro-1-(4-methoxy-phenyl)-
ethanol 
III/35b 2.2:764 
32407 C9H9F3O2Si 
234.25 
O 
F 
4-Methyl-benzoic acid trifluorosilanylmethyl 
ester 
III/35e 2.2.1:942 
O Si 
FF 
H3C 
32408 C9H9F3O3Si 
250.25 
F 
O 
F 
O 
O 
F 
Si 
H3C 
4-Methoxy-benzoic acid 
trifluorosilanylmethyl ester 
III/35e 2.2.1:943 
32409 C9H9F5N3P3 
347.1 
FF 
F P 
N 
P 
N 
P 
N 
F F 
CH2 
CH3 
2,2,4,4,6-Pentafluoro-6-(4-isopropenyl-
phenyl)-2.5,4.5,6.5-
[1,3,5,2,4,6]triazatriphosphinine 
III/35a 3.2:827 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32410 C9H9F6KN2O3 
346.27 
NH 
CF3 Potassium; (S)-4-(3,3-bis-trifluoromethyl-
diaziridin-1-yl)-2-methyl-3-oxo-pentanoate 
III/35b 2.2:765 
F3C 
NCH3 
CH3K(+) O(-) 
O O 
32411 C9H9F6KN2O3 
346.27 
NH 
CF3 Potassium; (R)-4-(3,3-bis-trifluoromethyl-
diaziridin-1-yl)-2-methyl-3-oxo-pentanoate 
III/35b 2.2:766 
F3C 
NCH3 
CH3K(+) O(-) 
O O 
32412 C9H9F7N2O 
294.17 
C3F7 3-(3-Heptafluoropropyl-1H-pyrazol-4-yl)-
propan-1-ol 
III/35c2 2.2:590 
HO 
N 
NH 
32413 C9H9F7O2 
282.15 
(E/Z) 
F3C F 
Propionic acid 1-(1,2,2,2-tetrafluoro-1-
trifluoromethyl-ethyl)-propenyl ester 
III/35b 2.2:767 
OH5C2 CF3 
O 
CH3 
32414 C9H9FeN 
187.02 (-) (-) 
N 
Fe(2+) 
C9H9FeN III/35c4 2.2:857 
32415 C9H9FeO2 
205.01 (-) 
(unknown relative positions) C9H9FeO2 III/35e 2.2.7:4629 
Fe(2+) 
C C 
O O 
32416 C9H9N 
131.17 CH3C 
N 
Ph 
Phenyl-propenylidene-amine III/35b 3.2:1056 
32417 C9H9N 
131.17 
H3C 1H-Indole, 5-methyl-; 
5-Methyl-1H-indole 
III/35b 3.2:1057 
614-96-0 
NH 
32418 C9H9N 
131.17 
3230-65-7 N 
3,4-Dihydro-isoquinoline; 
Isoquinoline, 3,4-dihydro- 
III/35c2 2.2:591 
32419 C9H9NO 
147.17 
NH2 
Ph 
O (Z)-3-Amino-1-phenyl-propenone III/35e 2.2.1:944 
32420 C9H9NO 
147.17 
NH2Ph 
O (E)-3-Amino-1-phenyl-propenone III/35e 2.2.1:945 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32421 C9H9NO 
147.17 N 
CH3 2-Isocyanato-1,3-dimethyl-benzene III/35e 2.2.1:948 
C 
O 
CH3 
32422 C9H9NO 
147.17 
23138-50-3 
C 
N 
H5C2 
O 
1-Ethyl-4-isocyanato-benzene; 
p-Ethylphenyl isocyanate 
III/35e 2.2.1:947 
32423 C9H9NO 
147.17 
40411-25-4 
C 
N 
C2H5 
O 
1-Ethyl-2-isocyanato-benzene; 
2-Ethylphenylisocyanat 
III/35e 2.2.1:946 
32424 C9H9NO 
147.17 
CH3O 3-Methoxy-1H-indole; 
3-Methoxy-indole 
III/35c2 2.2:594 
16712-55-3 
NH 
32425 C9H9NO 
147.17 
61-70-1 O 
1-Methyl-1,3-dihydro-indol-2-one; 
N-Methylindolin-2-one 
III/35b 3.2:1059; 
III/35e 2.2.1:949 
N 
CH3 
32426 C9H9NO 
147.17 
1006-94-6 
NH 
O 
H3C 
1H-Indole, 5-methoxy-; 
5-Methoxy-1H-indole 
III/35b 3.2:1058 
32427 C9H9NO 
147.17 
O 1,2-dihydro-2-methylisoindol-3-one; 
2-Methyl-2,3-dihydro-isoindol-1-one 
III/35e 2.2.1:950 
5342-91-6 
N CH3 
32428 C9H9NO 
147.17 
1504-06-9 
NH 
O 
CH3 
+ 
NH 
O 
CH3 1,3-Dihydro-3-methyl-2H-indol-2-one; 
3-Methyl-1,3-dihydro-indol-2-one; 
(R,S)-3-Methyl-1,3-dihydro-indol-2-one 
III/35b 3.2:1060 
32429 C9H9NO 
147.17 
O 
5,6-Dihydro-pyrrolo[1,2-a]azepin-7-one III/35c2 2.2:592 
N 
32430 C9H9NO 
147.17 
O 
N 
7,8-Dihydro-6H-isoquinolin-5-one III/35c2 2.2:593 
32431 C9H9NO 
147.17 
O 
N 
7,8-Dihydro-6H-quinolin-5-one III/35c2 2.2:595 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32432 C9H9NOS 
179.24 
CH3O 
4-Methoxy-7-methyl-benzothiazole III/35c2 2.2:596 
N 
S 
CH3 
32433 C9H9NOS 
179.24 
OHS (R,S)-1-Benzothiazol-2-yl-ethanol III/35c2 2.2:597 
CH3N 
+ 
CH3 
OH 
N 
S 
32434 C9H9NOS 
179.24 
OS 
CH3 
O 
NH 
S 
+ 
(R,S)-3-Methyl-3,4-dihydro-
benzo[1,4]thiazin-2-one 
III/35c2 2.2:598 
CH3NH 
32435 C9H9NOSe 
226.13 
2946-17-0 
N 
Se 
CH3 
H3C 
O 
5-Methoxy-2-methyl-benzoselenazole III/35c4 2.2:858 
32436 C9H9NO2 
163.17 
(E/Z) 1-Methyl-4-(2-nitro-vinyl)-benzene; 
4-(2-Nitro-vinyl)-toluene 
III/35e 2.2.3:3542 
NO2 
H3C 
32437 C9H9NO2 
163.17 
1,1-Dimethyl-1H-furo[3,4-c]pyridin-3-one III/35c2 2.2:599 
O 
N 
O 
32438 C9H9NO2S 
195.24 
O 
CNS 
OH5C2 
4-Cyano-benzenesulfinic acid ethyl ester III/35e 2.2.5:4219 
32439 C9H9NO3 
179.17 
3179-10-0 NO2 
O 
H3C 
1-Methoxy-4-(2-nitro-vinyl)-benzene III/35e 2.2.3:3543 
32440 C9H9NO3S 
211.24 
S 
O 
C2H5 
O2N 
4-Nitro-thiobenzoic acid S-ethyl ester III/35e 2.2.1:951 
32441 C9H9NO3S 
211.24 
OS 
N 
H5C2 O 
O C9H9NO3S III/35e 2.2.5:4220 
32442 C9H9NO3S 
211.24 O 
O 
Ph 
S 
NO 
3-Benzenesulfonyl-4,5-dihydro-isoxazole III/35c2 2.2:600 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32443 C9H9NO4 
195.17 
O Acetic acid 4-nitro-benzyl ester III/35e 2.2.2:2794 
O CH3 
O2N 
32444 C9H9NO4 
195.17 N 
CH3 
O 
C9H9NO4 III/35b 3.2:1061 
O(-) 
O(-) 
O 
32445 C9H9NO4W 
379.01 
W(-) 
HN(+) CH2 
C O 
C9H9NO4W III/35c4 2.2:859 
H3C C C 
C 
O 
O 
O 
32446 C9H9N2P 
176.16 
P 
N 
N 
Ph 
H3C 5-Methyl-2-phenyl-2H-
[1,2,3]diazaphosphole 
III/35b 3.2:1062 
32447 C9H9N3 
159.19 
1128-56-9 
N 
N 
Ph 
H2N 1-Phenyl-1H-pyrazol-3-ylamine; 
1-Phenyl-1H-pyrazol-3-amine 
III/35b 3.2:1063 
32448 C9H9N3 
159.19 
CH3 3-Methyl-4-phenyl-4H-[1,2,4]triazole III/35c2 2.2:601 
N 
PhN 
N 
32449 C9H9N3O 
175.19 
Ph 
ON 
NN 
1-Benzyloxy-1H-[1,2,3]triazole III/35c2 2.2:602 
32450 C9H9N3O2 
191.19 
OH 
N 
4H-Isoquinoline-1,3-dione dioxime III/35c2 2.2:603 
NH 
N 
OH 
32451 C9H9N3O3S 
239.25 
O CH3 1-Acetyl-1-(4-nitro-phenyl)-thiourea III/35b 3.2:1064 
N NH2 
S 
O2N 
32452 C9H9N3S 
191.25 
S 
N 
NH 
NH 
H3C 
5-p-Tolyl-2,4-dihydro-[1,2,4]triazole-3-
thione 
III/35c2 2.2:604 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32453 C9H9N5 
187.2 
N3 
CH3 
NH 
N 
N3 
CH3 
NH 
N 
+ 
2-((R,S)-1-Azido-ethyl)-1H-benzoimidazole III/35c2 2.2:605 
32454 C9H9OP 
164.14 
H3C 1-(Di-prop-1-ynyl-phosphinoyl)-propyne III/35a 3.2:828 
O 
P 
H3C CH3 
32455 C9H9O2Re 
335.37 
Re 
O 
O 
CH3 
Ph C9H9O2Re III/35c4 2.2:860 
32456 C9H9O3P 
196.14 
CH Propa-1,2-dienyl-phosphonic acid diprop-2-
ynyl ester 
III/35c4 2.2:861 
O O 
C 
CH2P 
O 
HC 
32457 C9H10BClN6Pb 
455.67 
N N 
C9H10BClN6Pb III/35c4 2.2:862 
N N 
PbHB 
N N Cl 
32458 C9H10BCl2N6ORe 
486.14 
NNN 
BH C9H10BCl2N6ORe III/35c4 2.2:863 
NNN 
Re 
Cl O 
Cl 
32459 C9H10BCl2N6OTc 
398.84 
NNN 
BH C9H10BCl2N6OTc III/35c4 2.2:864 
NNN 
Tc 
Cl O 
Cl 
32460 C9H10BrF 
217.08 
Ph 
Br 
F 
Ph 
F 
+ Br 
((R,S)-2-Bromo-1-fluoro-1-methyl-ethyl)benzene 
III/35b 2.2:768 
32461 C9H10BrNO 
228.09 
18469-37-9 N 
O 
CH3 
Benzamide, 4-bromo-N,N-dimethyl-; 
Benzamide, p-bromo-N,N-dimethyl-; 
4-Bromo-N,N-dimethylbenzamide; 
III/35e 2.2.1:952 
CH3 
N,N-Dimethyl-4-bromobenzamide 
Br 
32462 C9H10BrN3O 
256.1 N 
Br 
N CH3 
N 
CH3 
O C9H10BrN3O III/35b 3.2:1065 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32463 C9H10ClNO 
183.63 
14062-80-7 N 
O 
CH3 
Benzamide, 4-chloro-N,N-dimethyl-; 
Benzamide, p-chloro-N,N-dimethyl-; 
4-Chloro-N,N-dimethylbenzamide; 
III/35e 2.2.1:953 
CH3 
N,N-Dimethyl-4-chlorobenzamide 
Cl 
32464 C9H10ClN3O 
211.65 N 
Cl 
N CH3 
N 
CH3 
O C9H10ClN3O III/35b 3.2:1066 
32465 C9H10ClO4P 
248.6 
33493-32-2 
O 
P 
O O CH3 
O 
CH3 
Cl (4-Chloro-benzoyl)-phosphonic acid 
dimethyl ester; 
Dimethyl 4-chlorobenzoylphosphonate 
III/35e 2.2.4:3773 
32466 C9H10Cl2O3 
237.08 O 
CH3 1,5-Dichloro-2,3,4-trimethoxy-benzene III/35e 2.2.1:954 
OO 
CH3H3C 
ClCl 
32467 C9H10Cl3N 
238.54 
7,8-Dichloro-1,2,3,4-tetrahydro-isoquinoline 
with hydrochloric acid 
III/35c2 2.2:606 
HClNH 
Cl 
Cl 
32468 C9H10FI 
264.08 
Ph 
F 
CH3 
I 
((1R,2S)-1-Fluoro-2-iodo-propyl)-benzene III/35b 2.2:771 
32469 C9H10FNO 
167.18 
O 4-Dimethylamino-benzoyl fluoride III/35e 2.2.1:955 
F 
N 
H3C 
CH3 
32470 C9H10FNO 
167.18 
24167-56-4 
O 
N 
F 
CH3 
CH3 
Benzamide, 4-fluoro-N,N-dimethyl-; 
4-Fluoro-N,N-dimethyl-benzamide; 
4-Fluoro-N,N-dimethyl-benzamide 
III/35e 2.2.1:956 
32471 C9H10FNO3 
199.18 
NH O F 
O 
O 
H3C 
(4-Methoxy-phenyl)-carbamic acid 
fluoromethyl ester 
III/35b 2.2:773 
32472 C9H10FN3O 
195.19 N 
F 
N CH3 
N 
CH3 
O C9H10FN3O III/35b 3.2:1067 
32473 C9H10FN3OS 
227.26 
O 
NH NH 
F C9H10FN3OS III/35b 2.2:774 
NH CH3 
S 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32474 C9H10F2 
156.17 
Ph C2H5 
F F (1,1-Difluoro-propyl)-benzene III/35b 2.2:775 
32475 C9H10F2 
156.17 
FH3C 1,2-Difluoro-3,4,5-trimethyl-benzene III/35b 2.2:777 
FH3C 
CH3 
32476 C9H10F2 
156.17 
F (2-Fluoro-1-fluoromethyl-ethyl)-benzene III/35b 2.2:778 
F 
Ph 
32477 C9H10F2 
156.17 
Ph 
F F 
(2,2-Difluoro-propyl)-benzene III/35b 2.2:779 
32478 C9H10F2O 
172.17 
F F 1-(1,1-Difluoro-ethyl)-2-methoxy-benzene III/35b 2.2:780 
CH3 
O 
32479 C9H10F2OSe 
251.13 
Ph 
Se 
F F 
O 
CH3 
(2,2-Difluoro-2-methoxy-ethylselanyl)-
benzene 
III/35b 2.2:781 
32480 C9H10F2O3S 
236.24 S 
OH O 
O 
C2H5 
F F (R,S)-2,2-Difluoro-3-hydroxy-3-thiophen-2-
yl-propionic acid ethyl ester 
III/35b 2.2:782 
+ 
S 
OH O 
O 
C2H5 
F F 
32481 C9H10F2O4 
220.17 O 
OH O 
O 
C2H5 
F F (R,S)-2,2-Difluoro-3-furan-2-yl-3-hydroxy-
propionic acid ethyl ester 
III/35b 2.2:783 
+ 
F F 
O 
OH O 
O 
C2H5 
32482 C9H10F2S 
188.24 F 
F [(R,S)-Fluoro-(2-fluoro-ethylsulfanyl)-
methyl]-benzene 
III/35b 2.2:784 
Ph S 
+ 
F 
F 
Ph S 
32483 C9H10F3NO2 
221.18 OH 
F3C NH 
O 
CH3 
(R)-2,2,2-Trifluoro-1-(4-methoxy-
phenylamino)-ethanol 
III/35b 2.2:983 
32484 C9H10F6N2O3 
308.18 NH 
CF3 
F3C 
C9H10F6N2O3 III/35b 2.2:785 
NCH3 
CH3HOOC 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32485 C9H10F6N2O3 
308.18 HN 
CF3 
CF3 
C9H10F6N2O3 III/35b 2.2:786 
NCH3 
CH3HOOC 
O 
32486 C9H10F6O 
248.17 O 
F3C CF3 
O 
F3C CF3 (R,S)-6-Methyl-2,2-bis-trifluoromethyl-
cyclohexanone 
III/35b 2.2:787 
+ 
CH3 CH3 
32487 C9H10F6O 
248.17 
F3C CF3 
O 
1-Methyl-5,5-bis-trifluoromethyl-7-oxa-
bicyclo[4.1.0]heptane 
III/35b 2.2:788 
32488 C9H10F9NO 
319.17 
H9C4 
O 
NH 
C4F9 
Pentanoic acid nonafluorobutyl-amide III/35b 2.2:789 
32489 C9H10FeO 
190.02 
(delocalized system) 
O 
Cyclopentadienyl-allyl-monocarbonyl-iron III/35c4 2.2:865 
Fe(2+)CH2 
C 
(-)
CH2(-) 
32490 C9H10IN3O 
303.1 N 
I 
N CH3 
N 
CH3 
O C9H10IN3O III/35b 3.2:1068 
32491 C9H10NOPS3 
275.35 P 
O S 
S 
2-Ethylsulfanyl-2-thioxo-2,3-dihydro-2.5-
benzo[e][1,3,2]oxazaphosphinine-4-thione 
III/35a 3.2:829 
NH C2H5 
S 
32492 C9H10NO2 
164.18 
O 4-Dimethylamino-benzoic acid anion III/35e 2.2.1:957 
O(-) 
N 
H3C 
CH3 
32493 C9H10NO2P 
195.16 PH 
O 
O 
NC 
C2H5 
(4-Cyano-phenyl)-phosphinic acid ethyl 
ester 
III/35e 2.2.4:3774 
32494 C9H10NO4P 
227.15 
O 
O 
PH 
O 
N 
O 
Ph 3-Phenyl-1,4,6,9-tetraoxa-2-aza-5.5-
phospha-spiro[4.4]non-2-ene 
III/35a 3.2:830 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32495 C9H10N2 
146.19 
CH3 4-Amino-3,5-dimethyl-benzonitrile III/35b 3.2:1070 
NH2 
NC CH3 
32496 C9H10N2 
146.19 
NH 
CN 
H3C 
CH3 
3,5-Dimethyl-phenyl-cyanamide III/35b 3.2:1071 
32497 C9H10N2 
146.19 
CH3 
CH3 
NHN 
2,3-Dimethyl-1H-pyrrolo[2,3-b]pyridine III/35c2 2.2:607 
32498 C9H10N2O 
162.19 
Ph 
NH 
CH3 
N 
O ((Z)-2-Nitroso-propenyl)-phenyl-amine III/35e 2.2.3:3544 
32499 C9H10N2O 
162.19 N(+)NC 
(p-Cyano-phenyl)-dimethylamin-N-oxide III/35e 2.2.3:3545 
O(-) 
32500 C9H10N2O 
162.19 
CH3O 
CH3NC N 
5-Methoxymethyl-6-methyl-pyridine-2-
carbonitrile 
III/35c2 2.2:609 
32501 C9H10N2O 
162.19 
O 
CN 
6-Isopropyl-2-oxo-1,2-dihydro-pyridine-3-
carbonitrile 
III/35c2 2.2:611 
NH 
H3C 
CH3 
32502 C9H10N2O 
162.19 
54957-81-2 H5C2 
O CH3 
NC 
N 
2-Ethoxy-6-methyl-nicotinonitrile III/35c2 2.2:610 
32503 C9H10N2O 
162.19 
CH3O 3-Methoxy-1-methyl-1H-indazole III/35b 3.2:1072 
N 
N 
CH3 
32504 C9H10N2O 
162.19 
N 
N O 
CH3 
CH3 2-Methoxy-3-methyl-2H-indazole III/35b 3.2:1073 
32505 C9H10N2O 
162.19 
3097-21-0 
N 
N 
O 
CH3 
CH3 
1,3-Dimethyl-1,3-dihydro-benzoimidazol-2-
one; 
1,3-Dimethylbenzimidazol-2(3H)-one; 
N,N'-Dimethyl-2-benzimidazolone; 
N,N'-Dimethylbenzimidazole 
III/35b 3.2:1074 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32506 C9H10N2O 
162.19 
CH3 
CH3 
O N 
N 
1,7-Dimethyl-1H-pyrrolo[1,2-a]pyrimidin-2-
one 
III/35c2 2.2:608 
32507 C9H10N2OS 
194.25 
NH CH3 N-(4-Thiocarbamoyl-phenyl)-acetamide III/35b 3.2:1075 
H2N O 
S 
32508 C9H10N2O2 
178.19 N 
N O 
CH3 
O 
H3C C9H10N2O2 III/35e 2.2.3:3546 
32509 C9H10N2O2 
178.19 
O2N 
N 
3-Nitro-5,6,7,8-tetrahydro-quinoline III/35c2 2.2:612 
32510 C9H10N2O2S 
210.25 
OO 
S 
3-Benzenesulfonyl-4,5-dihydro-1H-pyrazole III/35c2 2.2:613 
Ph 
NHN 
32511 C9H10N2O3 
194.19 
O 
N 
CH3 
N,N-Dimethyl-4-nitro-benzamide; 
N,N-Dimethyl-4-nitro-benzamide 
III/35e 2.2.1:958; 
III/35e 2.2.3:3549 
O2N 
CH3 
32512 C9H10N2O3 
194.19 
121-95-9 
NO2N 
CH3 
CH3 
O 
Acetamide, N-methyl-N-(4-nitrophenyl)-; 
N-Methyl-N-(4-nitro-phenyl)-acetamide; 
N-Methyl-N-(4-nitro-phenyl)-acetamide; 
N-Methyl-N-(4-nitrophenyl)acetamide 
III/35e 2.2.3:3547 
32513 C9H10N2O3 
194.19 
NH CH3 Acetamide, N-(2-methyl-4-nitrophenyl)-; 
N-(2-Methyl-4-nitro-phenyl)-acetamide; 
III/35e 2.2.3:3548 
2719-15-5 O N-(2-Methyl-4-nitrophenyl)acetamide; 
O2N CH3 N1-(2-Methyl-4-nitrophenyl)acetamide 
32514 C9H10N2O3 
194.19 
H3C 
O 
H3C 
O 
O 
NH 
NH 5,6-Dimethoxy-1,3-dihydro-benzoimidazol-
2-one 
III/35c2 2.2:615 
32515 C9H10N2O3 
194.19 H3C 
O OHN (R,S)-3-Hydroxy-6-methoxy-3,4-dihydro-
1H-[1,5]naphthyridin-2-one 
III/35c2 2.2:614 
ONH 
+ 
H3C 
O OHN 
ONH 
32516 C9H10N2O3S 
226.25 O SN(+) 
C9H10N2O3S III/35c2 2.2:616 
CH3O 
NCH(-) 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32517 C9H10N2O5 
226.19 
CH3O NH 2-Methyl-5-nitro-6-oxo-1,6-dihydro-pyridine-
3-carboxylic acid ethyl ester 
III/35c2 2.2:617 
O 
C2H5O2N 
O 
32518 C9H10N2S 
178.25 
1009-70-7 
(tautomers) 
N 
S 
NH 
Ph 
(4,5-Dihydro-thiazol-2-yl)-phenyl-amine; 
2-(phenylimino)thiazolidine 
III/35b 3.2:1076 
32519 C9H10N2S 
178.25 
N 
S 
CH3 1-Methyl-2-methylsulfanyl-1H-
benzoimidazole 
III/35b 3.2:1077 
N 
CH3 
32520 C9H10N2S 
178.25 N 
CH3 1,3-Dimethyl-1,3-dihydro-benzoimidazole-
2-thione 
III/35b 3.2:1078 
S 
N 
CH3 
32521 C9H10N3OS 
208.26 
S 
NN(+) 
N 
Ph 
O 
C2H5 
5-Ethoxy-3-phenyl-[1,2,3,4]thiatriazol-3-ium III/35e 2.2.2:2797 
32522 C9H10N4 
174.2 
Ph 1-Ethyl-5-phenyl-1H-tetrazole; 
1H-Tetrazole, 1-ethyl-5-phenyl- 
III/35c2 2.2:618 
24433-71-4 N 
C2H5N 
NN 
32523 C9H10N4OS 
222.27 
N(-)N(+)N 
N 
OS 
2-(3-Azido-thiophen-2-yl)-4,4-dimethyl-4,5-
dihydro-oxazole 
III/35c2 2.2:619 
32524 C9H10N4O2 
206.2 
NH 
N 
CH3 
N 
CH3O2N Dimethyl-(5-nitro-1H-benzoimidazol-2-yl)-
amine 
III/35b 3.2:1079 
32525 C9H10NiO2 
208.87 (-) 
Propanoyl-cyclopentadienyl-carbonyl-nickel III/35c4 2.2:866 
Ni(+)H5C2 
C 
O 
O 
32526 C9H10O 
134.18 
935-04-6 
Ph O CH2 
Benzyl-vinyl ether; 
((Ethenyloxy)methyl)benzene; 
Vinyloxymethyl-benzene 
III/35e 2.2.2:2799 
32527 C9H10O 
134.18 
O CH2 1-Methyl-2-vinyloxy-benzene III/35e 2.2.2:2800 
CH3 
32528 C9H10O 
134.18 
O CH2H3C 1-Methyl-3-vinyloxy-benzene III/35e 2.2.2:2801 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32529 C9H10O 
134.18 
H3C 
O CH2 1-Methyl-4-vinyloxy-benzene III/35e 2.2.2:2802 
32530 C9H10O 
134.18 
Ph CH3 (2R,3S)-2-Methyl-3-phenyl-oxirane III/35e 2.2.2:2805 
O 
32531 C9H10O 
134.18 
Ph 
O 
CH3 (2S,3S)-2-Methyl-3-phenyl-oxirane III/35e 2.2.2:2806 
32532 C9H10O 
134.18 
2085-88-3 
O Ph PhO 
+ Cumene, a,-epoxy-; 
(R,S)-2-Methyl-2-phenyl-oxirane; 
()-2-Methyl-2-phenyloxirane; 
Oxirane, 2-methyl-2-phenyl- 
III/35e 2.2.2:2804 
32533 C9H10O 
134.18 O 
CH2 
CH2 
CH2 
CH2 
O+ 
(1S*,2S*,4R*,5R*)-6,7-Dimethylene-3-oxa-
tricyclo[3.2.1.02,4]octane; 
(1S*,2S*,4R*,5R*)-6,7-Dimethylene-3-oxa-
tricyclo[3.2.1.02,4]octane 
III/35e 2.2.2:2813 
32534 C9H10OS 
166.24 
S CH3 Ethanethioic acid, S-(4-methylphenyl) 
ester; 
III/35e 2.2.1:963 
10436-83-6 
H3C 
O S-(4-methylphenyl) ethanethioate; 
Thioacetic acid S-p-tolyl ester; 
Thioacetic acid S-p-tolyl ester 
32535 C9H10O2 
150.18 
1450-72-2 H3C 
OH 
O 
CH3 
Acetophenone, 2'-hydroxy-5'-methyl-; 
Ethanone, 1-(2-hydroxy-5-methylphenyl)-; 
1-(2-Hydroxy-5-methylphenyl)ethanone; 
2'-Hydroxy-5'-methylacetophenone 
III/35e 2.2.1:970 
32536 C9H10O2 
150.18 
89-71-4 CH3O 
O 
CH3 
2-Methyl-benzoic acid methyl ester; 
Methyl-o-toluate 
III/35e 2.2.1:973 
32537 C9H10O2 
150.18 
O 1-(2-Hydroxy-phenyl)-propan-1-one; 
1-Propanone, 1-(2-hydroxyphenyl)- 
III/35e 2.2.1:969 
610-99-1 C2H5 
OH 
32538 C9H10O2 
150.18 
4024-19-5 H3C 
O 
O 
CH2 1-Methoxy-4-vinyloxy-benzene III/35e 2.2.2:2808, 
2814 
32539 C9H10O2 
150.18 
O 
CH3 
2-Methyl-6,7-dihydro-5H-benzofuran-4-one III/35c2 2.2:622 
O 
32540 C9H10O2 
150.18 
O O (R,S)-3-Methyl-2,3-dihydro-benzofuran-3-ol III/35c2 2.2:621 
+ 
HO HO 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32541 C9H10O2 
150.18 
O 
O 
5,6,7,8-Tetrahydro-cyclohepta[b]furan-4-
one 
III/35c2 2.2:620 
32542 C9H10O2S 
182.24 
60787-31-7 H3C 
S 
O 
O 
CH3 Thioacetic acid S-(4-methoxy-phenyl) ester III/35e 2.2.1:978 
32543 C9H10O2S 
182.24 
S 
CH3 
O O 
S 
CH3 
O O 
+ 
(R,S)-2-Methyl-2,3-dihydro-
benzo[b]thiophene 1,1-dioxide; 
(R,S)-2-Methyl-2,3-dihydro-
benzo[b]thiophene 1,1-dioxide 
III/35e 2.2.5:4180 
32544 C9H10O2S 
182.24 
Thiochroman 1,1-dioxide III/35e 2.2.5:4181 
S 
O O 
32545 C9H10O2S2 
214.31 
O 
OS 
S 
Ph 
3-Phenylsulfanyl-thietane 1,1-dioxide III/35e 2.2.5:4182 
32546 C9H10O2Se 
229.13 
Se 
CH3 
2-Methylselanyl-benzoic acid methyl ester III/35c4 2.2:867 
O 
CH3 
O 
32547 C9H10O3 
166.17 
1200-06-2 H3C 
O CH3 
O 
O 
Acetic acid 4-methoxy-phenyl ester; 
4-Acetoxyanisole; 
Phenol, 4-methoxy-, acetate; 
Phenol, p-methoxy-, acetate 
III/35e 2.2.1:981 
32548 C9H10O3 
166.17 
93-25-4 
COOH 
O 
CH3 
Benzeneacetic acid, 2-methoxy-; 
(2-Methoxy-phenyl)-acetic acid; 
2-Methoxyphenylacetic acid; 
o-Methoxyphenylessigsure 
III/35e 2.2.1:987 
32549 C9H10O3 
166.17 
1798-09-0 
H3C COOH 
O Benzeneacetic acid, 3-methoxy-; 
(3-Methoxy-phenyl)-acetic acid; 
3-Methoxyphenylacetic acid; 
m-Methoxyphenylessigsure 
III/35e 2.2.1:988 
32550 C9H10O3 
166.17 
OOH 1-(2-Hydroxy-6-methoxy-phenyl)-ethanone III/35e 2.2.1:991 
CH3 
CH3O 
32551 C9H10O3 
166.17 
O 
O 
1-(2-Hydroxy-5-methoxy-phenyl)-ethanone III/35e 2.2.1:992 
CH3H3C 
OH 
32552 C9H10O4S 
214.24 
O 
C2H5 
O 
4-Propionyloxy-thiophene-3-carboxylic acid 
methyl ester 
III/35c2 2.2:623 
OH3C 
O 
S 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32553 C9H10O4S 
214.24 
O 
H5C2 
O COOH 
S 
4-Ethoxycarbonylmethyl-thiophene-3-
carboxylic acid 
III/35c2 2.2:624 
32554 C9H10O4S 
214.24 
22821-69-8 O 
OO 
CH3S 
O 3-Methanesulfonyl-benzoic acid methyl 
ester 
III/35e 2.2.1:994; 
III/35e 2.2.5:4221 
32555 C9H10O4S 
214.24 
22821-70-1 O 
O 
S 
O 
CH3 
O 
4-Methanesulfonyl-benzoic acid methyl 
ester 
III/35e 2.2.1:995; 
III/35e 2.2.5:4222 
32556 C9H10Se 
197.14 Ph 
Se 
CH2 
Allylselanyl-benzene III/35c4 2.2:868 
32557 C9H10Se 
197.14 
Ph 
Se CH2 
CH3 Isopropenylselanyl-benzene III/35c4 2.2:869 
32558 C9H11AsO3 
242.1 As 
O 
O 
O 
Ph 
H3C 
(2R,4S)-4-Methyl-2-phenoxy-
[1,3,2]dioxarsolane 
III/35c4 2.2:870 
32559 C9H11AsO3 
242.1 As 
O 
O 
O 
Ph 
H3C 
(2R,4R)-4-Methyl-2-phenoxy-
[1,3,2]dioxarsolane 
III/35c4 2.2:871 
32560 C9H11BN2 
158.01 
NN 
B 
CH3 Dipyrrolyl-methyl-borane III/35a 2.2:841 
32561 C9H11BrMg 
223.39 
BrMg 
Ph 
CH3 
BrMg 
Ph 
CH3 
+ 
1-Phenyl-propyl-2-magnesium bromide III/35c4 2.2:874 
32562 C9H11BrMg 
223.39 
31731-86-9 
CH3 
MgPh 
Br 
CH3 
MgPh 
Br 
+ 
2-Phenylpropyl magnesium bromide III/35c4 2.2:873 
32563 C9H11ClN2 
182.65 
Cl 
N 
N 
CH3 
CH3 
N'-[1-(4-Chloro-phenyl)-meth-(E)-ylidene]-
N,N-dimethyl-hydrazine 
III/35b 3.2:1080 
32564 C9H11ClO2 
186.63 
O 
CH3 
CH3 
Cl 
CH3 
O 
5-Chloro-1,2-dimethoxy-3-methyl-benzene III/35e 2.2.2:2816 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32565 C9H11Cl2O2P 
253.06 Cl 
H3C CH3 
4-Dichloromethylene-1-methoxy-3,5-
dimethyl-4H-phosphinine 1-oxide 
III/35a 3.2:831 
O 
P 
O 
Cl 
H3C 
32566 C9H11Cl2O2P 
253.06 
H3C 
CH3 
Cl 
Cl 4,5-Dichloro-1-methoxy-3,6-dimethyl-
phosphepine 1-oxide 
III/35c2 2.2:625 
P 
CH3OO 
32567 C9H11CoO3 
226.12 
(delocalized system) C9H11CoO3 III/35c4 2.2:872 
C 
O C O 
Co(+) 
H2C(-) 
C 
O 
32568 C9H11F 
138.18 
CH3 
CH3 
CH3F 
5-Fluoro-1,2,3-trimethyl-benzene III/35b 2.2:790 
32569 C9H11F 
138.18 
2038-62-2 
Ph F 1-Fluoro-3-phenylpropane; 
(3-Fluoro-propyl)-benzene 
III/35b 2.2:791 
32570 C9H11F 
138.18 
74185-81-2 Ph F 
a,a-Dimethylbenzyl fluoride; 
(1-Fluoro-1-methyl-ethyl)-benzene; 
2-Fluoro-2-phenylpropane 
III/35b 2.2:794 
32571 C9H11F 
138.18 
19031-70-0 Ph C2H5 
F 
Ph C2H5 
F 
+ 
Benzene, (1-fluoropropyl)-; 
1-Fluoro-1-phenylpropane; 
()-1-Fluoro-1-phenylpropane; 
((R,S)-1-Fluoro-propyl)-benzene 
III/35b 2.2:792 
32572 C9H11F 
138.18 Ph 
CH3 
F 
Ph 
CH3 
F 
+ 
((R,S)-2-Fluoro-propyl)-benzene III/35b 2.2:793 
32573 C9H11FN2 
166.19 
(E/Z) 
F 
N 
N 
CH3 
CH3 
N'-(4-Fluoro-phenyl)-N,N-dimethyl-
formamidine 
III/35b 2.2:795 
32574 C9H11FO 
154.18 
Ph 
F 
CH3 
OH 
(1R,2R)-1-Fluoro-1-phenyl-propan-2-ol III/35b 2.2:797 
32575 C9H11FO 
154.18 
Ph 
O 
CH3 
F 
Ph 
O 
CH3 
F 
+ 
((R,S)-2-Fluoro-1-methoxy-ethyl)-benzene III/35b 2.2:796 
32576 C9H11F3O 
192.18 
4,4-Dimethyl-2-trifluoromethyl-cyclohex-2-
enone 
III/35b 2.2:798 
O 
CF3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32577 C9H11F3O2 
208.18 
O CF3 Trifluoro-acetic acid 2-methyl-cyclohex-1-
enyl ester 
III/35b 2.2:799 
O 
CH3 
32578 C9H11F6N3O2 
307.19 NH 
CF3 C9H11F6N3O2 III/35b 2.2:801 
F3C 
NCH3 
CH3 
H2N 
OO 
32579 C9H11F6N3O2 
307.19 HN 
CF3 
CF3 
C9H11F6N3O2 III/35b 2.2:802 
NCH3 
CH3 
H2N 
O O 
32580 C9H11F7O 
268.17 
CF3 
H11C5 
O 
CF3F 1,1,1,2-Tetrafluoro-2-trifluoromethyl-octan-
3-one 
III/35b 2.2:803 
32581 C9H11N 
133.19 N 
CH3 
H3C 
C9H11N III/35b 3.2:1082 
32582 C9H11N 
133.19 N 
1-o-Tolyl-aziridine III/35b 3.2:1084 
CH3 
32583 C9H11N 
133.19 
CH3 (2R,3S)-2-Methyl-3-phenyl-aziridine III/35b 3.2:1086 
Ph 
NH 
32584 C9H11N 
133.19 
CH3 (2S,3S)-2-Methyl-3-phenyl-aziridine III/35b 3.2:1087 
Ph 
NH 
32585 C9H11N 
133.19 
Ph 
NH 
S-2-Phenyl-2-methyl-aziridine III/35b 3.2:1088 
32586 C9H11N 
133.19 N 
p-Toluylaziridine; 
1-p-Tolyl-aziridine 
III/35b 3.2:1083 
38201-24-0 
H3C 
32587 C9H11N 
133.19 
6872-06-6 NH 
CH3 
+ 
2,3-Dihydro-2-methyl-1H-indole; 
1H-Indole, 2,3-dihydro-2-methyl-; 
(R,S)-2-Methyl-2,3-dihydro-1H-indole; 
2-Methylindoline 
III/35b 3.2:1089 
NH 
CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32588 C9H11NO 
149.19 
17105-71-4 
NPh O 
CH3 
N-Benzyl-N-methyl-formamide; 
Benzylmethylformamide; 
Formamide, N-benzyl-N-methyl-; 
Formamide, N-methyl-N-(phenylmethyl)- 
III/35b 3.2:1092 
32589 C9H11NO 
149.19 N 
CH3 
O 
H3C 
C9H11NO III/35b 3.2:1097 
32590 C9H11NO 
149.19 
2170-09-4 NH 
CH3 
CH3 
O Benzamide, N,2-dimethyl-; 
2,N-Dimethyl-benzamide; 
2,N-Dimethyl-benzamide; 
N-methyl-2-toluamide 
III/35e 2.2.1:1000 
32591 C9H11NO 
149.19 
NH2 
CH3 
CH3 
O 2,6-Dimethyl-benzamide III/35e 2.2.1:1003 
32592 C9H11NO 
149.19 N 
OH 
C2H5 
2-[Ethyliminomethyl]-phenol III/35e 2.2.2:2817 
32593 C9H11NO 
149.19 
N 
OH 
CH3 
CH3 2,6-Dimethyl-benzaldehyde oxime III/35e 2.2.3:3550 
32594 C9H11NO 
149.19 
100-10-7 CH3 
N 
CH3 
O 
Benzaldehyde, 4-(dimethylamino)-; 
4-Dimethylamino-benzaldehyde 
III/35b 3.2:1096; 
III/35e 2.2.1:1002 
32595 C9H11NO 
149.19 
6830-82-6 
NH 
Ph CH3 
O 
N-Methyl-2-phenyl-acetamide III/35b 3.2:1090 
32596 C9H11NO 
149.19 
18370-11-1 NH 
O 
CH3 
H3C 
4,N-Dimethyl-benzamide III/35e 2.2.1:1001 
32597 C9H11NO 
149.19 
23069-99-0 
NH 
Ph 
O N-Phenethyl-formamide III/35b 3.2:1093 
32598 C9H11NO 
149.19 N 
H3C 
O 
1-(4-Methoxy-phenyl)-aziridine III/35b 3.2:1094 
32599 C9H11NO 
149.19 N 
CH3H3C 
O 
H3C 
+ N 
CH3 
O C9H11NO III/35b 3.2:1095 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32600 C9H11NO 
149.19 
37978-19-1 
H5C2 
O 
H3C 
N 
1-(3-Ethyl-pyridin-4-yl)-ethanone III/35c2 2.2:628 
32601 C9H11NO 
149.19 
CH3 
O 
N 
O 
N+ 
CH3 (R,S)-3-Methyl-2,3-dihydro-1H-indolizin-5-
one 
III/35c2 2.2:629 
32602 C9H11NO 
149.19 
OH (R,S)-5,6,7,8-Tetrahydro-quinolin-6-ol III/35c2 2.2:627 
N 
+ 
OH 
N 
32603 C9H11NOS 
181.25 
CH3O 2-Isopropyl-4-methoxy-thiophene-3-
carbonitrile 
III/35c2 2.2:630 
NC 
H3C 
S 
CH3 
32604 C9H11NOS 
181.25 
N 
OS 
4,4-Dimethyl-2-thiophen-2-yl-4,5-dihydro-
oxazole 
III/35c2 2.2:631 
32605 C9H11NOS 
181.25 
NH 
H3C 
S 
O 
CH3 
N-Methyl-4-methylsulfanyl-benzamide III/35e 2.2.1:1004 
32606 C9H11NOS 
181.25 
ON 
CH3 C9H11NOS III/35e 2.2.5:4223 
S 
C2H5 
32607 C9H11NOS 
181.25 
OS 
N 
CH3 
CH3 
H3C 
C9H11NOS III/35e 2.2.5:4224 
32608 C9H11NO2 
165.19 
CH3 4-Amino-3,5-dimethyl-benzoic acid III/35b 3.2:1100 
NH2 
HOOC CH3 
32609 C9H11NO2 
165.19 
6919-61-5 N 
CH3 
Ph CH3 
O 
O 
N-Methoxy-N-methyl-benzamide III/35e 2.2.1:1005 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32610 C9H11NO2 
165.19 
1778-08-1 N 
CH3 
CH3 
O 
OH 
Benzamide, 2-hydroxy-N,N-dimethyl-; 
2-Hydroxy-N,N-dimethyl-benzamide; 
Salicylamide, N,N-dimethyl-
III/35e 2.2.1:1006 
32611 C9H11NO2 
165.19 
14983-92-7 O 
NH O 
CH3 
CH3 
Carbamic acid, (2-methylphenyl)-, methyl 
ester; 
Methyl N-(o-tolyl)carbamate; 
o-Tolyl-carbamic acid methyl ester 
III/35e 2.2.1:1007 
32612 C9H11NO2 
165.19 
93-26-5 O 
NH CH3 
CH3 
O 
Acetamide, N-(2-methoxyphenyl)-; 
N-(2-Methoxy-phenyl)-acetamide 
III/35e 2.2.1:1010 
32613 C9H11NO2 
165.19 
3400-22-4 NH 
O 
CH3 
O 
H3C 
4-Methoxy-benzoic acid methylamide; 
4-Methoxy-N-methyl-benzamide; 
N-Methyl-p-methoxybenzamide 
III/35e 2.2.1:1012 
32614 C9H11NO2 
165.19 
6526-72-3 CH3 
NO2 
CH3 Benzene, 1-(1-methylethyl)-2-nitro-; 
Cumene, o-nitro-; 
2-Isopropyl-1-nitrobenzene; 
1-Isopropyl-2-nitrobenzene 
III/35e 2.2.3:3551 
32615 C9H11NO2 
165.19 
603-71-4 
CH3 
NO2 
CH3H3C 
Benzene, 1,3,5-trimethyl-2-nitro-; 
Mesitylene, 2-nitro-; 
1-Nitro-2,4,6-trimethylbenzene; 
1,3,5-Trimethyl-2-nitro-benzene 
III/35e 2.2.3:3552 
32616 C9H11NO2 
165.19 
619-84-1 
HOOC 
CH3 
N 
CH3 Benzoic acid, 4-(dimethylamino)-; 
4-Dimethylamino-benzoic acid 
III/35b 3.2:1101 
32617 C9H11NO2 
165.19 
39076-18-1 O 
NH OH3C 
CH3 
m-Tolyl-carbamic acid methyl ester III/35e 2.2.1:1008 
32618 C9H11NO2 
165.19 
5602-96-0 O 
NH O 
CH3 
H3C 
p-Tolyl-carbamic acid methyl ester III/35e 2.2.1:1009 
32619 C9H11NO2 
165.19 
150-30-1 
Ph 
NH2 
COOH 
Ph 
NH2 
COOH 
+ 
(R,S)-2-Amino-3-phenyl-propionic acid; 
DL-Phenylalanine 
III/35b 3.2:1102; 
III/35e 2.2.1:1013 
32620 C9H11NO2 
165.19 
N 
CH3 
O 
O 
H3C 
N 
CH3 
O 
O 
H3C 
+ 
C9H11NO2 III/35b 3.2:1099 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32621 C9H11NO3 
181.19 
14803-72-6 
CH3 
NH O 
H3C O 
O 
(4-Methoxy-phenyl)-carbamic acid methyl 
ester; 
Methyl N-(4-methoxyphenyl)carbamate 
III/35e 2.2.1:1015 
32622 C9H11NO3 
181.19 
OH 4-Isopropyl-2-nitrophenol; 
Phenol, 4-(1-methylethyl)-2-nitro-; 
III/35e 2.2.3:3553 
1576-10-9 H3C 
NO2 
Phenol, 4-isopropyl-2-nitro- 
CH3 
32623 C9H11NO3 
181.19 
556-03-6 
COOH 
NH2HO 
COOH 
NH2HO 
+ 
(R,S)-2-Amino-3-(4-hydroxy-phenyl)-
propionic acid; 
DL-p-Tyrosine; 
DL-Tyrosine; 
()-Tyrosine 
III/35e 2.2.1:1014, 
1016 
32624 C9H11NO3 
181.19 
O 
CH3O 
HO 
H3C N 
Acetic acid 5-hydroxy-6-methyl-pyridin-3-
ylmethyl ester 
III/35c2 2.2:632 
32625 C9H11NO3 
181.19 
O 
C2H5O 
CN 
O 
O 
C2H5O 
CN 
O 
+ 
(R,S)-2-Cyano-3,6-dihydro-2H-pyran-2-
carboxylic acid ethyl ester 
III/35c2 2.2:633 
32626 C9H11NO4 
197.19 O 
C2H5 
O 
3-(2-Methyl-oxazol-4-yl)-3-oxo-propionic 
acid ethyl ester 
III/35c2 2.2:634 
O 
N 
H3C O 
32627 C9H11NO4S 
229.25 
O C2H5 
O 
2,2-Dioxo-1,2,3,5-tetrahydro-2.6-thieno[3,4-
.]pyrrole-4-carboxylic acid ethyl ester 
III/35c2 2.2:635 
O 
S NH 
O 
32628 C9H11NO5 
213.19 
CH3 
O 
C2H5 
OO 
H3C 
O 
ON 
5-Methyl-isoxazole-3,4-dicarboxylic acid 4ethyl 
ester 3-methyl ester 
III/35c2 2.2:636 
32629 C9H11NS 
165.25 
N CH3 
CH3 
Ph 
S 
N-Methyl-N-phenyl-thioacetamide III/35b 3.2:1105 
32630 C9H11NS2 
197.32 
H5C2 
S 
S 
N 
4-Ethylsulfanyl-6,7-dihydro-thieno[3,2-
c]pyridine 
III/35c2 2.2:637 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32631 C9H11N2OPS2 
258.3 
See appendix No: 32631 (R,S)-3-Methyl-2-methylsulfanyl-2-thioxo-
2,3-dihydro-1H-2.5-
benzo[1,3,2]diazaphosphinin-4-one 
III/35c2 2.2:638 
32632 C9H11N3O 
177.2 Ph 
N 
O 
N CH3 
N 
CH3 
C9H11N3O III/35b 3.2:1106 
32633 C9H11N3O2 
193.2 
NC 2-Amino-6-dimethoxymethyl-nicotinonitrile III/35c2 2.2:639 
O 
CH3H2N N 
O 
CH3 
32634 C9H11N3O3 
209.2 
O 
O 
H5C2 
CH3O 
NH2 
N 
N 
3-Amino-5-propionyl-pyrazine-2-carboxylic 
acid methyl ester 
III/35c2 2.2:641 
32635 C9H11N3O3 
209.2 
26820-62-2 
NO2 
N 
O N 
Morpholine, 4-(5-nitro-2-pyridinyl)-; 
4-(5-Nitro-pyridin-2-yl)-morpholine 
III/35c2 2.2:640 
32636 C9H11N3O4 
225.2 
See appendix No: 32636 2-Diazo-3-oxo-4-((R,S)-4-oxo-azetidin-2-
yl)-butyric acid ethyl ester 
III/35c2 2.2:642 
32637 C9H11N5O4 
253.22 
O2N 
CH3 O 
CH3 
O 
N 
N 
N 
N 
3-Acetyl-1'-methyl-5'-nitro-4,5-dihydro-
3H,1'H-[1,2']biimidazolyl-2-one 
III/35c2 2.2:643 
32638 C9H11N5O4 
253.22 
N 
NHO 
O 
OOH 
N3 
N 
NHO 
O 
OOH 
N3 
+ 
1-((2R*,4S*,5S*)-4-Azido-5-hydroxymethyl-
tetrahydro-furan-2-yl)-1H-pyrimidine-2,4-
dione 
III/35b 3.2:1107 
32639 C9H11OP 
166.16 
Ph 
O 
PH 
C2H5 
Ethylphosphanyl-phenyl-methanone III/35a 3.2:832 
32640 C9H11OP 
166.16 
O 
P 
2-Methyl-1,3-dihydro-isophosphindole 2oxide 
III/35c2 2.2:644 
32641 C9H11O2P 
182.16 Ph 
PH 
C2H5O 
O C9H11O2P III/35a 3.2:835 
32642 C9H11O2P 
182.16 P 
O 
O 
Ph 
H3C (2S,4R)-4-Methyl-2-phenyl-
[1,3,2]dioxaphospholane 
III/35a 3.2:833 
32643 C9H11O2P 
182.16 P 
O 
O 
Ph 
H3C (2S,4S)-4-Methyl-2-phenyl-
[1,3,2]dioxaphospholane 
III/35a 3.2:834 
32644 C9H11O2P 
182.16 
O O+ 
(R,S)-1-Methyl-3,4-dihydro-
benzo[c][1,2]oxaphosphinine 1-oxide 
III/35c2 2.2:645 
P P 
O O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32645 C9H11O2PS 
214.22 
O 
P 
O 
S 
3-Methyl-1,5-dihydro-
benzo[e][1,3,2]dioxaphosphepine 3-sulfide 
III/35a 3.2:836 
32646 C9H11O3P 
198.16 
O 
P 
O 
O 
C2H5 
2-Ethoxy-3H-benzo[d][1,2]oxaphosphole 2oxide 
III/35a 3.2:837 
32647 C9H11O3Re 
353.39 
H3C 
CH3 Mesityl-rhenium-trioxide III/35e 2.2.7:4840 
Re 
O O 
O 
CH3 
32648 C9H11O4P 
214.16 
18106-71-3 
P CH3Ph 
O 
O 
O 
O CH3 Benzoyl-phosphonic acid dimethyl ester III/35e 2.2.1:1017; 
III/35e 2.2.4:3775 
32649 C9H11O5P 
230.15 
O OPh 
P 
OO CH3 
CH3 
O Phosphoric acid benzoyl dimethyl ester III/35e 2.2.1:1018; 
III/35e 2.2.4:3776 
32650 C9H11O5P 
230.15 O 
O 
Ph 
P 
O 
O O CH3 
CH3 
C9H11O5P III/35e 2.2.4:3777 
32651 C9H11P 
150.16 
141850-65-9 
H2C PH Ph 
Benzyl-vinyl-phosphane; 
Benzylvinylphosphine 
III/35a 3.2:838 
32652 C9H12BClSi 
194.54 
Si 
B 
Cl C9H12BClSi III/35a 2.2:842 
32653 C9H12BNO 
161.01 
O 
B 
NH Ph C9H12BNO III/35a 2.2:843 
32654 C9H12BN2O6 
255.01 
O 
B(-)O 
O2N 
H2N 
OH 
OH 
C9H12BN2O6 
-III/35a 2.2:844 
32655 C9H12B2 
141.81 B 
CH3 C9H12B2 III/35a 2.2:845 
B 
CH3 
32656 C9H12B2F2FeN6 
O6 
415.69 
See appendix No: 32656 C9H12B2F2FeN6O6 III/35a 2.2:846 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32657 C9H12B2FeO3S 
277.72 
H5C2 C2H5 C9H12B2FeO3S III/35a 2.2:847 
HB BH 
S 
Fe C O 
C 
O 
C 
O 
32658 C9H12BrF3O 
273.09 
Br 
O 
CF3 + 
Br 
O 
CF3 
(R,S)-3-Bromo-3-cyclohexyl-1,1,1-trifluoro-
propan-2-one 
III/35b 2.2:804 
32659 C9H12Br2F2 
318.0 
BrF 
F 
Br 
1-Bromo-4-(bromo-difluoro-methyl)-
octahydro-pentalene 
III/35b 2.2:805 
32660 C9H12ClFO2 
206.64 F 
Cl 
O 
O CH3 
+ F 
Cl 
O 
O CH3 
(1S*,6R*,7R*)-7-Chloro-7-fluoro-
bicyclo[4.1.0]heptane-1-carboxylic acid 
methyl ester 
III/35b 2.2:806 
32661 C9H12ClN 
169.65 
CH3Cl 
N 
CH3 
3-Chloro-5-isobutyl-pyridine III/35c2 2.2:646 
32662 C9H12ClNO 
185.65 
CH3 
O 
CH3 
O 
(R,S)-2-Chloroethynyl-4,4,6-trimethyl-5,6-
dihydro-4H-[1,3]oxazine 
III/35c2 2.2:647 
Cl 
N 
+ 
Cl 
N 
32663 C9H12ClNO3S 
249.71 
C3H7 
N 
5-Allyl-6-chloro-4-propyl-[1,2,3]oxathiazine 
2,2-dioxide 
III/35c2 2.2:648 
O 
S 
O 
CH2 
Cl 
O 
32664 C9H12ClNO5S 
281.71 O 
S 
Cl 
O 
2-((3S,4R)-3-Chloro-2-oxo-4-sulfino-
azetidin-1-yl)-3-methyl-but-2-enoic acid 
methyl ester 
III/35c2 2.2:649 
OHN 
O CH3 
CH3 
O CH3 
32665 C9H12ClNS 
201.72 
S 
Cl 
N 
2-tert-Butylsulfanyl-3-chloro-pyridine III/35c2 2.2:650 
32666 C9H12Cl2Te 
318.7 Ph 
Te C3H7 
Cl Phenyl-propyl-tellurium-dichloride III/35c4 2.2:875 
Cl 
32667 C9H12Cl2Te 
318.7 Ph 
Te 
Cl CH3 Phenyl-isopropyl-tellurium-dichloride III/35c4 2.2:876 
Cl CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32668 C9H12FN 
153.2 
F 
N 
4-tert-Butyl-2-fluoro-pyridine III/35c2 2.2:651 
32669 C9H12FNO3S 
233.26 S 
N 
CH3 
O O 2-Fluoro-4-methoxy-N,N-dimethyl-
benzenesulfonamide 
III/35b 2.2:807 
CH3H3C 
FO 
32670 C9H12FNO3S 
233.26 
F 
O 
O 
O(-) 
S 
N(+) 
C9H12FNO3S III/35c2 2.2:652 
32671 C9H12F2 
158.19 
F 
F 
9,9-Difluoro-bicyclo[6.1.0]non-4-ene III/35b 2.2:808 
32672 C9H12F2O 
174.19 
OH 
FF 
CH2 OH 
FF 
CH2 
+ 
(R,S)-1-(1,1-Difluoro-allyl)-cyclohex-2-enol III/35b 2.2:809 
32673 C9H12F2Te 
285.79 Ph 
Te C3H7 
F Phenyl-propyl-tellurium-difluoride III/35c4 2.2:877 
F 
32674 C9H12F2Te 
285.79 Ph 
Te 
F CH3 Phenyl-isopropyl-tellurium-difluoride III/35c4 2.2:878 
F CH3 
32675 C9H12F4O3 
244.18 
(E/Z) 
O 
H5C2 
O 
F3C F 
OH 
CH3 
(E,Z)-2-Fluoro-3-hydroxy-2-trifluoromethyl-
hex-4-enoic acid ethyl ester 
III/35b 2.2:810 
32676 C9H12F4O4 
260.18 
H3C 
O 
O 
F F F F 
O 
CH3 
O 
2,2,6,6-Tetrafluoro-heptanedioic acid 
dimethyl ester 
III/35b 2.2:811 
32677 C9H12F6N4O 
306.21 
F3C CF3 N,N,N',N'-Tetramethyl-4,4-bis-
trifluoromethyl-4H-[1,3,5]oxadiazine-2,6-
III/35b 2.2:812 
N N diamine 
O N 
CH3N 
H3C 
CH3CH3 
32678 C9H12F6O 
250.18 
F3C CF3 
OH 
CH3 
6-Methyl-2,2-bis-trifluoromethyl-
cyclohexanol 
III/35b 2.2:813 
32679 C9H12GeO2 
224.83 
O 
Ge 
O 
2,2-Dimethyl-4H-benzo[1,3,2]dioxagermine III/35c4 2.2:879 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32680 C9H12N 
134.2 
NH(+) 
5,6,7,8-Tetrahydro-isoquinolinium III/35c2 2.2:653 
32681 C9H12NOPS 
213.24 
N 
O 
P 
CH3 
S 
Ph 
3-Methyl-2-phenyl-
[1,3,2]oxazaphospholidine 2-sulfide 
III/35a 3.2:839 
32682 C9H12NOPS 
213.24 
P 
O 
S N CH3 
H3C 
Dimethyl-(1-thioxo-2-oxa-1.5-phospha-
indan-1-yl)-amine 
III/35a 3.2:840 
32683 C9H12N2 
148.21 
CN 
N 
5-Pyrrol-1-yl-pentanenitrile III/35c2 2.2:655 
32684 C9H12N2 
148.21 
N 
N 
CH3 
CH3Ph 
N,N-Dimethyl-N'-[1-phenyl-meth-(E)-
ylidene]-hydrazine 
III/35b 3.2:1108 
32685 C9H12N2 
148.21 
1783-25-1 N N 
CH3 
CH3Ph 
N,N-Dimethyl-N'-phenyl-formamidine; 
Formamidine, N,N-dimethyl-N'-phenyl-; 
Methanimidamide, N,N-dimethyl-N'-phenyl-
; 
N',N'-Dimethyl-N-phenylformamidine 
III/35b 3.2:1109 
32686 C9H12N2 
148.21 
NH2 
NH 
1,2,3,4-Tetrahydro-quinolin-8-ylamine III/35c2 2.2:654 
32687 C9H12N2O 
164.2 
CH3 
H3C 
O 
NC 
N 
CH3 
2-Isopropyl-1-methyl-4-oxo-4,5-dihydro-1H-
pyrrole-3-carbonitrile 
III/35c2 2.2:656 
32688 C9H12N2O 
164.2 
NH 
O 
NHPh 
CH3 
1-Benzyl-3-methyl-urea III/35b 3.2:1110 
32690 C9H12N2O 
164.2 
(E/Z) 
N 
OH 
N 
H3C 
CH3 
4-Dimethylamino-benzaldehyde oxime III/35b 3.2:1111 
III/35e 2.2.3:3554 
32691 C9H12N2O 
164.2 
6083-47-2 
O 
NH2 
N 
CH3 
H3C 
4-(Dimethylamino)benzamide; 
4-Dimethylamino-benzamide 
III/35b 3.2:1112; 
III/35e 2.2.1:1019 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32692 C9H12N2O 
164.2 N 
CH3 
N 1-(4,5,6,7-Tetrahydro-pyrazolo[1,5-
a]pyridin-3-yl)-ethanone 
III/35c2 2.2:657 
O 
32693 C9H12N2OS2 
228.33 NC 
O 6-Ethylsulfanyl-2,2-dimethyl-4-oxo-3,4-
dihydro-2H-[1,3]thiazine-5-carbonitrile 
III/35c2 2.2:658 
NH 
H5C2 
S S 
32694 C9H12N2O2 
180.2 H3C 
O 
H3C 
O 
CN 
N 
3-(3,4-Dimethoxy-pyrrol-1-yl)-propionitrile III/35c2 2.2:659 
32695 C9H12N2O2 
180.2 
O2N 
N 
CH3 
CH3 
Dimethyl-(4-nitro-benzyl)-amine III/35b 3.2:1113 
32696 C9H12N2O2 
180.2 
OCH3 
C2H5 
2,4-Dimethyl-pyrimidine-5-carboxylic acid 
ethyl ester 
III/35b 3.2:1114 
N O 
H3C N 
32697 C9H12N2O2S 
212.27 
NO2 2-tert-Butylsulfanyl-3-nitro-pyridine III/35e 2.2.3:3555 
84358-80-5 
N S 
32698 C9H12N2O2S 
212.27 
S 4-tert-Butylsulfanyl-3-nitro-pyridine III/35e 2.2.3:3556 
103698-11-9 N 
NO2 
32699 C9H12N2O3 
196.2 
O2N 
N(+) 
O(-) 
3-tert-Butyl-4-nitro-pyridine 1-oxide III/35e 2.2.3:3557 
32700 C9H12N2O4 
212.2 
H5C2 
O 
O2N 
O 
CH3 
CH3 
N 
1-(5-Ethoxy-1-methyl-4-nitro-1H-pyrrol-2-
yl)-ethanone 
III/35c2 2.2:661 
32701 C9H12N2O4 
212.2 
H5C2 
O 
O CH3 
NO2 
CH3 
N 
1,5-Dimethyl-4-nitro-1H-pyrrole-2-
carboxylic acid ethyl ester 
III/35c2 2.2:662 
32702 C9H12N2O4 
212.2 
N 
H3C 
O 
COOH 
3-(1,3-Dimethyl-2,4-dioxo-1,2,3,4-
tetrahydro-pyrimidin-5-yl)-propionic acid 
III/35e 2.2.1:1020 
O N 
CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32703 C9H12N2O4 
212.2 O 
CH3 
O 
NH 
6,6-Dimethyl-4-oxo-3a,4-dihydro-1H-
furo[3,4-c]pyrazole-6a-carboxylic acid 
methyl ester 
III/35c2 2.2:660 
O N 
O 
32704 C9H12N2O6 
244.2 
N 
NH 
HO 
O 
O 
O 
HO OH 
1-((2R,5R)-3,4-Dihydroxy-5-hydroxymethyl-
tetrahydro-furan-2-yl)-1H-pyrimidine-2,4-
dione 
III/35e 2.2.1:1021 
32705 C9H12N2S 
180.27 
705-62-4 NNH 
Ph CH3 
S 
CH3 1,1-Dimethyl-3-phenyl-2-thiourea; 
1,1-Dimethyl-3-phenyl-thiourea; 
Thiourea, N,N-dimethyl-N'-phenyl-; 
Urea, 1,1-dimethyl-3-phenyl-2-thio- 
III/35b 3.2:1115 
32706 C9H12N2S 
180.27 
4714-69-6 
N 
H3C 
CH3 
S 
NH2 
Benzamide, p-(dimethylamino)thio-; 
Benzenecarbothioamide, 4-
(dimethylamino)-; 
4-(Dimethylamino)benzenecarbothioamide; 
4-Dimethylamino-thiobenzamide 
III/35b 3.2:1116 
32707 C9H12N2S 
180.27 
2741-06-2 
NHNH 
Ph C2H5 
S 
1-Ethyl-3-phenyl-2-thiourea; 
1-Ethyl-3-phenyl-thiourea; 
Thiourea, N-ethyl-N'-phenyl-; 
Urea, 1-ethyl-3-phenyl-2-thio- 
III/35b 3.2:1117 
32708 C9H12N3P 
193.19 
N 
P 
NH 
N 
CH3 
CH3 
Ph 2,3-Dimethyl-5-phenyl-3,4-dihydro-2H-
[1,2,4,3]triazaphosphole 
III/35a 3.2:841 
32709 C9H12N4 
176.22 
C4H9 2-Azido-4-butyl-pyridine III/35b 3.2:1118 
N N3 
32710 C9H12N4O2 
208.22 
CH3 (Z)-2-Methyl-4-oxo-4-pyrrolidin-1-yl-but-2-
enoyl azide 
III/35c2 2.2:663 
80818-31-1 
O 
N3 
O 
N 
32711 C9H12N4O3 
224.22 
O 
O 
H3C 
O 
C3H7 
N 
N 
NN 
2-((E)-3-Oxo-hex-1-enyl)-2H-tetrazole-5-
carboxylic acid methyl ester 
III/35c2 2.2:664 
32712 C9H12N4S2 
240.35 
S 
N 
S 
N NH NHH3C CH3 
N,N'-Bis-(4-methyl-thiazol-2-yl)methanediamine 
III/35b 3.2:1119 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32713 C9H12N4S6 
368.61 
H3C 
S 
S 
N 
N 
S 
N 
S 
CH3 
N 
S 
S 
C9H12N4S6 III/35c2 2.2:665 
32714 C9H12N5P 
221.2 
NH2N NH 
Ph 
2-Methyl-N-phenyl-2.5-
[1,3,5,2]triazaphosphinine-4,6-diamine 
III/35a 3.2:842 
NN 
PH 
CH3 
32715 C9H12N6 
204.23 NH 
C3H7 (3-Methyl-pyrimido[5,4-e][1,2,4]triazin-5-yl)-
propyl-amine 
III/35c2 2.2:666 
H3C N 
N 
N 
NN 
32716 C9H12Ni 
178.88 
(-) 
(delocalized system) 
Ni(2+) 
CH2 
CH2(-) 
2-Methyl-allyl-cyclopentadienyl-nickel III/35c4 2.2:880 
32717 C9H12Ni 
178.88 
(delocalized system; E) 
CH3 
1-E-Methyl-allyl-cyclopentadienyl-nickel III/35c4 2.2:881 
CH(-) 
(-) Ni(2+) 
CH2 
32718 C9H12Ni 
178.88 
(-) 
(delocalized system; Z) 
Ni(2+) 
CH(-)H3C 
1-Z-Methyl-allyl-cyclopentadienyl-nickel III/35c4 2.2:882 
CH2 
32719 C9H12O 
136.19 O 
CH2 
O 
CH2 (1S*,4R*)-1-Methyl-2,3-dimethylene-7-oxa-
bicyclo[2.2.1]heptane 
III/35e 2.2.2:2812 
+ 
CH2 CH2 
32720 C9H12O 
136.19 
CH3 
O 3-Methyl-4,5,6,7-tetrahydro-benzofuran III/35c2 2.2:667 
32721 C9H12OS 
168.26 
C3H7 
S 
Ph 
O (Propane-1-sulfinyl)-benzene III/35e 2.2.5:4225 
32722 C9H12OS 
168.26 CH3S 
Ph 
O 
CH3 
(Propane-2-sulfinyl)-benzene III/35e 2.2.5:4226 
32723 C9H12OS 
168.26 
C2H5 
SPh 
O Ethanesulfinylmethyl-benzene III/35e 2.2.5:4227 
32724 C9H12OS 
168.26 
H3C O 2-Methyl-5,6,7,8-tetrahydro-
benzo[1,4]oxathiine 
III/35c2 2.2:668 
S 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32725 C9H12O2 
152.19 
O 
CH3 
H5C2 
O 
1-(5-Ethyl-furan-2-yl)-propan-2-one III/35c2 2.2:669 
32726 C9H12O2 
152.19 
CH3 4-Methyl-5,6,7,7a-tetrahydro-4aH-
cyclopenta[c]pyran-1-one 
III/35e 2.2.1:1022 
O 
O 
32727 C9H12O2S 
184.25 C3H7O 
S 
Ph 
O Benzenesulfinic acid propyl ester III/35e 2.2.5:4228 
32728 C9H12O2S 
184.25 
52736-48-8 O 
S 
Ph 
O 
CH3 
CH3 Benzenesulfinic acid, 1-methylethyl ester; 
Benzenesulfinic acid isopropyl ester 
-benzenesulfinic acid ethyl ester 
III/35e 2.2.5:4229 
32729 
184.25 
C9H12O2S 
SH3C 
C2H5O 
O 4-MethylIII/35e 2.2.5:4230 
32730 C9H12O2S 
184.25 
13596-75-3 C3H7 
S 
Ph 
OO (Propane-1-sulfonyl)-benzene; 
(Propylsulfonyl)benzene 
III/35e 2.2.5:4231 
32731 C9H12O3 
168.19 
O 
C2H5 
O 
CH3O 
(2-Methyl-furan-3-yl)-acetic acid ethyl ester III/35c2 2.2:671 
32732 C9H12O3 
168.19 
29113-63-1 
O 
C2H5O 
CH3 
H3C 
O 
2,5-Dimethyl-furan-3-carboxylic acid ethyl 
ester 
III/35c2 2.2:670 
32733 C9H12O3 
168.19 
634-36-6 O 
H3C 
O 
CH3 
O 
CH3 
Benzene, 1,2,3-trimethoxy-; 
Methylsyringol; 
1,2,3-Trimethoxybenzene 
III/35e 2.2.1:1023; 
III/35e 2.2.2:2821 
32734 
200.25 
C9H12O3S 
O 
SO 
C2H5H3C 
O 4-Methoxy-benzenesulfinic acid ethyl ester III/35e 2.2.5:4233 
32735 C9H12O3S 
200.25 S 
OO OH (R,S)-1-Benzenesulfonyl-propan-2-ol III/35e 2.2.5:4232 
Ph CH3 
+ 
S 
Ph 
OO OH 
32736 C9H12O4 
184.19 
CH3 O 
CH3 
(R)-5-((S)-1-Hydroxy-ethyl)-3-((2S,3R)-3-
methyl-oxiranyl)-5H-furan-2-one 
III/35e 2.2.1:1024 
HO 
O 
CH3 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32737 C9H12O4 
184.19 
O 
O OH3C 
HO 
CH3 
(5S,6R)-5-Hydroxy-6-methyl-3-((2S,3R)-3-
methyl-oxiranyl)-5,6-dihydro-pyran-2-one 
III/35e 2.2.1:1025 
32738 C9H12O4S 
216.25 
H5C2 S 
O 
OOO 
C2H5 
Carbonic acid ethyl ester 5-ethylsulfanyl-
furan-2-yl ester 
III/35c2 2.2:672 
32739 C9H12O6S 
248.25 
CH3O 
CH3OS 
O 
O 
O 
O 
CH3O 
CH3OS 
O 
O 
O 
O 
+ 
2-((R,S)-1,1-Dioxo-2,3-dihydro-1H-1.6-
thiophen-3-yl)-malonic acid dimethyl ester; 
III/35e 2.2.5:4234 
32740 C9H12Se 
199.15 
22233-89-2 Ph 
Se CH3 
CH3 Isopropyl-phenyl selenide; 
Isopropylselanyl-benzene 
III/35c4 2.2:884 
32741 C9H13BBr3N 
385.73 
Ph N 
B 
Br 
Br Br Benzyl-dimethyl-amin - Tribromoborane 
(1:1); (N,N-
dimethylbenzylamine)tribromoboron 
III/35a 2.2:848 
32742 C9H13BCl3N 
252.38 
34762-89-5 Ph N 
B 
Cl 
Cl Cl Trichloro(N,N-dimethylbenzylamine)boron III/35a 2.2:849 
32743 C9H13BF3N 
203.01 
772-96-3 Ph N 
B 
F 
F F (N,N-Dimethylbenzylamine)trifluoroboron III/35a 2.2:850 
32744 C9H13BI3N 
526.73 
Ph N 
B 
I 
I I (N,N-Dimethylbenzylamine)triiodoboron; 
Benzyl-dimethyl-amin - Triiodoborane (1:1) 
III/35a 2.2:851 
32745 C9H13BN2 
160.02 
B 
N 
CH3 
CH3 C9H13BN2 III/35a 2.2:852 
N 
CH3 
32746 C9H13BrOSi 
245.19 
Br 
Si 
O (4-Bromo-phenoxy)-trimethyl-silane III/35e 2.2.2:2822 
32747 C9H13ClF2O 
210.65 
OH 
Cl 
+ 
OH 
Cl 
(R,S)-2-Chloro-1-cyclohexyl-3,3-difluoro-
prop-2-en-1-ol 
III/35b 2.2:814 
FF FF 
32748 C9H13ClN2O6 
280.66 
O(-)O 
OO 
ClO2N N(+) 1-((R,S)-3-Nitro-butyl)-pyridinium; 
perchlorate 
III/35c2 2.2:673 
H3C 
+ 
O(-)O 
OO 
ClO2N 
H3C 
N(+) 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32749 C9H13ClOSi 
200.74 Ph 
O 
Si Cl 
Chloromethyl-dimethyl-phenoxy-silane III/35c4 2.2:885 
32750 C9H13ClOSi 
200.74 
Cl 
Si 
O (4-Chloro-phenoxy)-trimethyl-silane III/35e 2.2.2:2823 
32751 C9H13ClS 
188.72 
H3C 
Cl 
S 
CH3 
4-Chloromethyl-2-isobutyl-thiophene III/35c2 2.2:674 
32752 C9H13ClSi 
184.74 
Ph 
Si Cl 
Chloromethyl-dimethyl-phenyl-silane III/35c4 2.2:886 
32753 C9H13FOSi 
184.28 
F 
Si 
O (4-Fluoro-phenoxy)-trimethyl-silane III/35e 2.2.2:2824 
32754 C9H13FO2 
172.2 F 
O 
O 
CH3 
F 
O 
O 
CH3 
+ 
(1S*,6R*,7R*)-7-Fluoro-
bicyclo[4.1.0]heptane-1-carboxylic acid 
methyl ester 
III/35b 2.2:815 
32755 C9H13FO2 
172.2 F 
O 
O 
CH3 
F 
O 
O 
CH3 
+ 
(1S*,6R*,7S*)-7-Fluoro-
bicyclo[4.1.0]heptane-1-carboxylic acid 
methyl ester 
III/35b 2.2:816 
32756 C9H13FO5 
220.19 C2H5O 
O OO 
O 
H5C2 
(R,S)-2-Fluoro-3-oxo-pentanedioic acid 
diethyl ester 
III/35b 2.2:817 
F 
+ 
O OO 
C2H5OO 
H5C2 
F 
32757 C9H13F3N2 
206.21 
C5H11 
F3C 
N 
NH 
3-Pentyl-5-trifluoromethyl-1H-pyrazole III/35c2 2.2:675 
32758 C9H13F3O3 
226.19 OH9C4 
CH3 
O 
CF3 
O 
OH9C4 
CH3 
O 
CF3 
O 
+ 
(R,S)-3-Oxo-2-trifluoromethyl-heptanoic 
acid methyl ester 
III/35b 2.2:818 
32759 C9H13F3Pt 
373.27 (-) 
CF3 
Pt(+) 
CH3 
H3C 
H3C 
Trifluoromethylcyclopentadienyl-trimethyl-
platinum 
III/35c4 2.2:887 
32760 C9H13IOSi 
292.19 
I 
Si 
O (4-Iodo-phenoxy)-trimethyl-silane III/35e 2.2.2:2825 
32761 C9H13I3O2 
533.91 
O 
I3C 
CH3 
O 
C4H9 
(E)-4-Butoxy-1,1,1-triiodo-pent-3-en-2-one III/35e 2.2.2:2826 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32762 C9H13I3O2 
533.91 
O 
I3C 
CH3 
O 
C4H9 
(E)-4-Butoxy-1,1,1-triiodo-3-methyl-but-3-
en-2-one 
III/35e 2.2.2:2827 
32763 C9H13I3O2 
533.91 
O 
I3C 
CH3 
O 
CH3 
CH3 
(E)-1,1,1-Triiodo-4-isobutoxy-pent-3-en-2-
one 
III/35e 2.2.2:2828 
32764 C9H13I3O2 
533.91 
O 
I3C 
CH3 
O 
CH3 
CH3 
(E)-1,1,1-Triiodo-4-isobutoxy-3-methyl-but-
3-en-2-one 
III/35e 2.2.2:2829 
32765 C9H13I3O2 
533.91 
O 
I3C 
CH3 
O C2H5 
CH3 (E)-4-((R,S)-sec-Butoxy)-1,1,1-triiodo-pent-
3-en-2-one 
III/35e 2.2.2:2830 
+ 
O CH3 CH3 
I3C O C2H5 
32766 C9H13I3O2 
533.91 
O 
I3C 
CH3 
O C2H5 
CH3 
+ 
(E)-4-((R,S)-sec-Butoxy)-1,1,1-triiodo-3-
methyl-but-3-en-2-one 
III/35e 2.2.2:2831 
O CH3 
I3C 
CH3 
O C2H5 
32767 C9H13NO 
151.21 
701-56-4 
O 
CH3 
N 
CH3 
H3C 
Benzenamine, 4-methoxy-N,N-dimethyl-; 
4-Methoxy-N,N-dimethylaniline; 
(4-Methoxy-phenyl)-dimethyl-amine 
III/35b 3.2:1124 
32768 C9H13NO 
151.21 
CH3 4-Methoxy-2,6-dimethyl-phenylamine III/35b 3.2:1125 
NH2 
O CH3 
H3C 
32769 C9H13NO 
151.21 
(E/Z) 
O 
N 
CH3 
6-[1-Dimethylamino-methylidene]-cyclohex-
2-enone 
III/35e 2.2.1:1026 
CH3 
32770 C9H13NO 
151.21 
N 
H3C 
OH 
CH3 
(4-Dimethylamino-phenyl)-methanol III/35e 2.2.2:2832 
32771 C9H13NO 
151.21 
825-85-4 
H3C N(+) 
O(-) 
N,N-dimethyl-p-toluidine-N-oxide III/35e 2.2.3:3558 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32772 C9H13NO 
151.21 
2-tert-Butyl-pyridine 1-oxide III/35e 2.2.3:3559 
N(+) 
O(-) 
32773 C9H13NO 
151.21 
23569-17-7 
N(+)O(-) 
4-tert-Butyl-pyridine 1-oxide III/35e 2.2.3:3560 
32774 C9H13NO 
151.21 C2H5O 
CH3 
N 
C2H5O 
CH3 
N 
+ 
3-((R,S)-1-Ethoxy-ethyl)-pyridine III/35c2 2.2:677 
32775 C9H13NO 
151.21 OH (R,S)-1-(6-Methyl-pyridin-2-yl)-propan-2-ol III/35c2 2.2:678 
CH3H3C N 
+ 
OH 
CH3H3C N 
32776 C9H13NO 
151.21 
O (4aS,7aR)-4-Methyl-2,4a,5,6,7,7a-
hexahydro-[2]pyrindin-1-one 
III/35e 2.2.1:1027 
NH 
CH3 
32777 C9H13NO 
151.21 
O 
NH 
2,3,4,6,7,8-Hexahydro-1H-quinolin-5-one III/35c2 2.2:679 
32778 C9H13NO 
151.21 
D9-Decahydroquinolin-2-one; 
3,4,5,6,7,8-Hexahydro-1H-quinolin-2-one 
III/35e 2.2.1:1028 
10333-11-6 
NH O 
32779 C9H13NOS 
183.27 
O 
S 
(2-Ethanesulfinyl-phenyl)-methyl-amine III/35e 2.2.5:4235 
C2H5 
CH3NH 
32780 C9H13NOS 
183.27 
O 
C2H5 
SNH 
H3C 
(4-Ethanesulfinyl-phenyl)-methyl-amine III/35e 2.2.5:4236 
32781 C9H13NOS 
183.27 
O 
NH 
S 
C2H5 
H3C 
4-Methyl-benzenesulfinic acid ethylamide III/35e 2.2.5:4237 
32782 C9H13NO2 
167.21 
CH3O 1-Isopropyl-1H-pyrrole-2-carboxylic acid 
methyl ester 
III/35c2 2.2:680 
ON 
CH3H3C 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32783 C9H13NO2 
167.21 
52217-13-7 C4H9 
NC 
O 
O 
one; 
2(3H)-Furanone, 3-
(butylIII/35c2 2.2:683 
32784 C9H13NO2 
167.21 
O 
O 
NH2 
l-III/35e 2.2.1:1030 
32785 C9H13NO2 
167.21 O N(+) 
O(-)H3C 
C9H13NO2 III/35e 2.2.3:3561 
32786 C9H13NO2 
167.21 
85302-07-4 
O 
CH3 
N 
CH3 
O 2-Dimethyl1,3-dione 
III/35e 2.2.1:1029 
32787 C9H13NO2 
167.21 CH3 
O 
N O 
CH3 
III/35c2 2.2:681 
32788 C9H13NO2 
167.21 
CH3 
OH 
O 
N 
l)-propan-1-ol III/35c2 2.2:682 
32789 C9H13NO2 
167.21 
O 
CH3O 
CH3 
CH3N 
O 
CH3O 
CH3 
CH3N 
+ 
l ester 
III/35c2 2.2:684 
32790 C9H13NO2S 
199.27 
599-69-9 
S 
N 
O 
CH3 
O 
CH3H3C 
N,N-Dimethyl-p-toluenesulfonamide; 
N,N-Dimethyl-p-toluenesulphonamide; 
4,N,N-Trimethyl-benzenesulfonamide 
III/35b 3.2:1126; 
III/35e 2.2.5:4238 
32791 C9H13NO2S 
199.27 
O 
NH2 
S 
CH3H3C 
CH3 O III/35e 2.2.5:4239 
32792 C9H13NO3 
183.2 
O 
H5C2 
O 
H3C 
CH3 
O 
N 
l-1HIII/35c2 2.2:685 
32793 C9H13NO3 
183.2 
N 
O 
O 
O 
CH3 
methyl ester 
III/35e 2.2.1:1031 
3-Butyliminomethylene-dihydro-furan-2-
carbonimidoyl)dihydro- 
2-Aminomethylene-5,5-dimethycyclohexane-1,3-dione 
aminomethylene-cyclohexane-
4-(2,2-Dimethoxy-ethyl)-pyridine 
3-(6-Methoxy-pyridin-2-y(R,S)-1,2-Dimethyl-1,2-dihydro-pyridine-3-
carboxylic acid methy2,4,6-Trimethyl-benzenesulfonamide 
4-Methoxy-1-methy-pyrrole-3-
carboxylic acid ethyl ester 
2-Oxo-4-pyrrolidin-1-yl-but-3-enoic acid 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32794 C9H13NO3Si 
211.29 
O2N 
Si 
O Trimethyl-(4-nitro-phenoxy)-silane III/35e 2.2.2:2833; 
III/35e 2.2.3:3562 
32795 C9H13NO4 
199.2 
O O CH3 
O 
H3C 
O 
H3C NH 
O O CH3 
O 
H3C 
O 
H3C NH 
+ 
(R,S)-5-Methyl-2,3-dihydro-1H-pyrrole-3,4-
dicarboxylic acid dimethyl ester 
III/35c2 2.2:686 
32796 C9H13NO4 
199.2 
O 
C2H5O 
HOOC 
N 
5,6-Dihydro-2H-pyridine-1,3-dicarboxylic 
acid 1-ethyl ester 
III/35c2 2.2:687 
32797 C9H13NO4 
199.2 
O 
O 
NO 
O 
CH3 
CH3 
5-Dimethylaminomethylene-2,2-dimethyl-
[1,3]dioxane-4,6-dione 
III/35e 2.2.1:1032 
32798 C9H13N3O 
179.22 
N 
N 
O 
N 
H3C 
CH3 
CH3 
C9H13N3O III/35b 3.2:1127 
32799 C9H13N3O2 
195.22 
NH tert-Butyl-(3-nitro-pyridin-4-yl)-amine III/35e 2.2.3:3564 
79371-43-0 N 
NO2 
32800 C9H13N3O2 
195.22 
NO2 tert-Butyl-(3-nitro-pyridin-2-yl)-amine III/35e 2.2.3:3563 
79371-45-2 
N NH 
32801 C9H13N3O3 
211.22 
O 
N 
H3C 
O 
NH2 
3-(1,3-Dimethyl-2,4-dioxo-1,2,3,4-
tetrahydro-pyrimidin-5-yl)-propionamide 
III/35e 2.2.1:1033 
NO 
CH3 
32802 C9H13N5 
191.23 N 
H5C2 C2H5 Diethyl-(9H-purin-6-yl)-amine III/35b 3.2:1128 
N 
N 
NHN 
32803 C9H13N5 
191.23 
C3H7 
H3C 
N 
N 
3-Methyl-5-propyl-1,2-dihydro-pyrimido[5,4-
e][1,2,4]triazine 
III/35c2 2.2:688 
NH 
NNH 
32804 C9H13OP 
168.17 
O 
P 
2-Methyl-1,3,4,7-tetrahydro-
isophosphindole 2-oxide 
III/35c2 2.2:689 
32805 C9H13O2P 
184.17 
O 
PHH3C CH3 
H3C 
O (2,5-Dimethyl-phenyl)-phosphinic acid 
methyl ester 
III/35a 3.2:844 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32806 C9H13O2P 
184.17 
13336-50-0 PhO 
PH 
CH3 
H3C 
O Phenyl-phosphinic acid isopropyl ester III/35a 3.2:843 
32807 C9H13O3P 
200.17 PH 
O 
O 
H3C 
O 
C2H5 
(4-Methoxy-phenyl)-phosphinic acid ethyl 
ester 
III/35e 2.2.4:3778 
32808 C9H13P 
152.17 
54722-11-1 
PhH7C3 
PH Phenyl-propyl-phosphane III/35a 3.2:845 
32809 C9H13P 
152.17 
1-Methyl-4,5,6,7-tetrahydro-1H-
phosphindole 
III/35a 3.2:846 
P 
CH3 
32810 C9H13PSe 
231.13 
Ph 
P 
Se 
C2H5 
C9H13PSe III/35a 3.2:847 
32811 C9H14B 
133.02 
B(-) 
C9H14B-III/35a 2.2:853 
32812 C9H14BLi 
139.96 
B(-)Li(+) 
Li+C9H14B-III/35a 2.2:853 
32813 C9H14BN 
147.03 
CH3 
H3C 
N 
B 
CH3 (N-Phenyl-N-methyl-amino)-dimethyl-
borane 
III/35c4 2.2:888 
Ph 
32814 C9H14BNS 
179.09 
NHS 
BH3 
Ph 
NHS 
BH3 
Ph 
+ 
C9H14BNS III/35a 2.2:854 
32815 C9H14BrN 
216.12 
BrCH3 
N 
1-(3-Bromo-propyl)-2,5-dimethyl-1H-pyrrole III/35c2 2.2:690 
CH3 
32816 C9H14BrN 
216.12 BrN 
1-(5-Bromo-pentyl)-1H-pyrrole III/35c2 2.2:691 
32817 C9H14ClFO 
192.66 H7C3 
Cl 
CH2 
(E)-(R,S)-5-Chloro-6-fluoro-nona-5,8-dien-
4-ol 
III/35b 2.2:819 
FOH 
H7C3 
Cl 
CH2 
+ 
FOH 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32818 C9H14ClFO 
192.66 OH 
Cl 
F 
CH3 
1-((E)-1-Chloro-2-fluoro-propenyl)-
cyclohexanol 
III/35b 2.2:820 
32819 C9H14Cl2O3 
241.11 
O 
O 
Cl 4-tert-Butyl-5-(2,2-dichloro-ethyl)-
[1,3]dioxolan-2-one 
III/35c2 2.2:692 
Cl 
O 
32820 C9H14FNO2 
187.21 F 
4-Fluoromethylene-piperidine-1-carboxylic 
acid ethyl ester 
III/35b 2.2:821 
NO 
H5C2 
O 
32821 C9H14FN2P 
200.19 CH3 
CH3 
N 
H3C P 
F Ph 
N 
C9H14FN2P III/35a 3.2:848 
32822 C9H14FP 
172.18 Ph P 
F 
CH3 
CH3 
Trimethylphenylfluorophosphorane III/35b 2.2:822 
CH3 
32823 C9H14F2N2O7 
300.21 
O 
O CH3O2N 
O2N 
F F 
O 
CH3 
Isobutyric acid 2-(2,2-dinitro-propoxy)-2,2-
difluoro-ethyl ester 
III/35b 2.2:823 
32824 C9H14F2O 
176.2 F 
O 1,1-Difluoro-non-1-en-4-one III/35b 2.2:824 
H11C5 
F 
32825 C9H14F2O 
176.2 CH2 
F FOH 1-(1,1-Difluoro-allyl)-cyclohexanol III/35b 2.2:825 
32826 C9H14F2O2 
192.2 
F F 
O 
Cyclohexyl-difluoro-acetic acid methyl ester III/35b 2.2:826 
CH3 
O 
32827 C9H14F2O3 
208.2 
O 
CH3 
O 2,2-Difluoro-7-oxo-octanoic acid methyl 
ester 
III/35b 2.2:827 
OH3C 
F F 
32828 C9H14F2O4 
224.2 
OH2C 
F F 
O O 
O 
CH3 
1,1-Difluoro-2-(2-methoxy-ethoxymethoxy)-
3-vinyloxy-propene 
III/35b 2.2:829 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32829 C9H14F2O4 
224.2 O O O 
CH3 
OH 
H2C 
(R,S)-1,1-Difluoro-2-(2-methoxy-
ethoxymethoxy)-penta-1,4-dien-3-ol 
III/35b 2.2:828 
FF 
O O O 
CH3 
OH 
H2C 
+ 
FF 
32830 C9H14F3N3 
221.22 
C2H5 
C2H5 
N 
Diethyl-(5-trifluoromethyl-1H-pyrazol-3-
ylmethyl)-amine 
III/35c2 2.2:693 
N 
F3C NH 
32831 C9H14INO2S 
327.18 
O 
H3C 
O 
S 
(R)-5-Iodomethyl-6,6-dimethyl-5,6-dihydro-
4H-[1,4]thiazine-2-carboxylic acid methyl 
ester 
III/35c2 2.2:694 
I 
NH 
32832 C9H14NO2P 
199.19 
Ph NH 
P 
O 
O 
CH3 
C9H14NO2P III/35a 3.2:849 
32833 C9H14NO3P 
215.19 P 
O 
O 
C2H5 
C2H5N 
O 
Pyridin-2-yl-phosphonic acid diethyl ester III/35e 2.2.4:3779 
32834 C9H14NPS 
199.25 
Ph 
P 
S 
N 
CH3 
CH3 
C9H14NPS III/35a 3.2:850 
32835 C9H14N2 
150.22 
CH3 
C2H5 
NHN 
CH3 
C2H5 
NHN+ 
Ethyl-((R,S)-1-pyridin-2-yl-ethyl)-amine III/35c2 2.2:695 
32836 C9H14N2O 
166.22 
O 
C5H11 
N 
NH 
1-(1H-Imidazol-2-yl)-hexan-1-one III/35c2 2.2:696 
32837 C9H14N2O2 
182.22 
O 
CH3 
O 
H3C 
CH3NH 
N 
Acetic acid 2-(3,5-dimethyl-1H-pyrazol-4-
yl)-ethyl ester 
III/35c2 2.2:697 
32838 C9H14N2O2 
182.22 
O 6-Pentyl-1H-pyrimidine-2,4-dione III/35c2 2.2:698 
NH 
C5H11O NH 
32839 C9H14N2O2S 
214.28 
C2H5S 
NH 
5-Ethylsulfanyl-2-methyl-1H-imidazole-4-
carboxylic acid ethyl ester 
III/35c2 2.2:699 
O 
C2H5H3C N 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32840 C9H14N2O2S2 
246.35 
O 
H5C2 
O CH3 
CH3 
N 
H3C S 
N 
S 
2-Dimethylamino-4-methylsulfanyl-thiazole-
5-carboxylic acid ethyl ester 
III/35c2 2.2:700 
32841 C9H14N2O3 
198.22 
O 
H3C 
O 
N 
1-Butyl-5-hydroxy-1H-imidazole-4-
carboxylic acid methyl ester 
III/35c2 2.2:701 
HO N 
C4H9 
32842 C9H14N2O3 
198.22 
O CH3 
O 
1-Hydroxy-5-isobutyl-1H-imidazole-4-
carboxylic acid methyl ester 
III/35c2 2.2:702 
CH3N 
CH3N 
OH 
32843 C9H14N2O3S 
230.28 
HO CH3 
S 
3-[3-Hydroxy-1-methylsulfanylmethyl-prop-
(E)-ylidene]-piperazine-2,5-dione 
III/35c2 2.2:703 
O 
NH 
NH 
O 
32844 C9H14N2O4 
214.22 
CH3 
CH3 
O2N 
H5C2 
O 
O 
N 
3-Ethoxy-1-isopropyl-4-nitro-1,5-dihydro-
pyrrol-2-one 
III/35c2 2.2:704 
32845 C9H14N4O2S 
242.3 
CH2 
NH2 
N 
4,4-Diallyl-1,1-dioxo-1,4-dihydro-1.6-
[1,2,6]thiadiazine-3,5-diamine 
III/35b 3.2:1129 
N 
O 
O NH2 
CH2S 
32846 C9H14O 
138.21 
O 
2,2,5,5-Tetramethyl-cyclopent-3-enone III/35e 2.2.1:1034 
32847 C9H14O 
138.21 
H3C 
O 
2-tert-Butyl-3-methyl-furan III/35c2 2.2:705 
32848 C9H14O 
138.21 
C5H11 
O 
3-Pentyl-furan III/35c2 2.2:706 
32849 C9H14O 
138.21 
O O 
+ 
(1S*,5R*)-6,6-Dimethyl-
bicyclo[3.1.1]heptan-2-one 
III/35e 2.2.1:1036 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32850 C9H14O 
138.21 O + O 
(1S*,2S*,4R*,6S*)-7,7-Dimethyl-3-oxa-
tricyclo[4.1.1.02,4]octane 
III/35e 2.2.2:2834 
32851 C9H14O 
138.21 
O 2-Methylene-cyclooctanone III/35e 2.2.1:1035 
3045-71-4 
CH2 
32852 C9H14OPt 
333.29 (-) 
Pt(+) CH3 
CH3 
O 
H3C 
Acetyl-cyclopentadienyl-dimethyl-platinum III/35c4 2.2:889 
32853 C9H14OSn 
256.9 Ph Sn 
O 
Phenyloxy-trimethylstannane III/35e 2.2.2:2836 
32854 C9H14O2 
154.21 
20633-06-1 
OO 3,3,5,5-Tetramethyl-cyclopentane-1,2-
dione 
III/35e 2.2.1:1037 
32855 C9H14O2 
154.21 
O O 2-Acetyl-4-methyl-cyclohexanone III/35e 2.2.1:1038 
CH3 
CH3 
32856 C9H14O2 
154.21 
O O 
C2H5 + 
O O 
C2H5 
(R,S)-2-Propionyl-cyclohexanone III/35e 2.2.1:1039 
32857 C9H14O2S 
186.27 H2C 
O O 
S 
(R,S)-4-Allyl-2,2,4-trimethyl-[1,3]oxathiolan-
5-one 
III/35c2 2.2:707 
+ 
H2C 
O O 
S 
32858 C9H14O3 
170.21 
O 
H3C 
C2H5O 
H3C O 
+ 
O 
H3C 
C2H5O 
H3C O 
1-((R,S)-4-Ethoxy-2-methyl-4,5-dihydro-
furan-3-yl)-ethanone 
III/35c2 2.2:708 
32859 C9H14O3S 
202.27 
O 
C2H5O 
O 
S 
+ 
O 
C2H5O 
O 
S 
(R,S)-3-Oxo-thiepane-2-carboxylic acid 
ethyl ester 
III/35c2 2.2:709 
32860 C9H14O4 
186.21 
OO 
O 
1-((1R,6S)-6-Methyl-7,8,9-trioxa-
bicyclo[4.2.1]non-2-yl)-ethanone 
III/35e 2.2.2:2837 
O 
CH3 
32861 C9H15B 
134.03 
CH2 Borane, tri-2-propenyl- III/35a 2.2:856 
688-61-9 
B 
H2C CH2 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32862 C9H15B 
134.03 
H3C B 
H3C B 
+ 
C9H15B III/35a 2.2:855 
32863 C9H15B 
134.03 
B 1-Boratricyclo[3.3.1.13,7]decane III/35a 2.2:857 
38673-97-1 
32864 C9H15BFN 
167.03 
N 
B 
F C2H5 
C2H5 
Pyridine - diethylfluoroborane (1:1) III/35a 2.2:858 
32865 C9H15BO 
150.03 O B 
H3C 
C9H15BO III/35a 2.2:859 
O B 
+ 
H3C 
32866 C9H15B2NSe3 
395.72 
C9H15B2NSe3 III/35a 2.2:860 
B 
Se 
B 
SeSe 
H5C2 C2H5 
N 
32867 C9H15BrOSi 
247.2 
Si 
CH2 
Br 
OH 
(R,S)-5-Bromo-1-trimethylsilanyl-hex-5-en-
1-yn-3-ol 
III/35c4 2.2:890 
OH 
Si 
CH2 
Br 
+ 
32868 
234.75 
C9H15ClO3Si 
O 
H2C 
O 
Si 
OCl 
CH2 
CH2 C9H15ClO3Si III/35e 2.2.2:2838 
32869 C9H15FO 
158.21 
F 
C4H9 
C2H5 
O 
(E)-5-Fluoro-non-4-en-3-one III/35b 2.2:830 
32870 C9H15FO 
158.21 
H9C4 
F 
C2H5 
O 
(Z)-5-Fluoro-non-4-en-3-one III/35b 2.2:831 
32871 C9H15FO 
158.21 
O 
CH3 
F 
+ 
O 
CH3 
F 
(R,S)-1-Cyclohexyl-2-fluoro-propan-1-one III/35b 2.2:832 
32872 C9H15FO4 
206.21 
C2H5 
O 
O 
COOH 
H5C2 
F 
CH3 
2-sec-Butyl-2-fluoro-malonic acid 
monoethyl ester 
III/35b 2.2:835 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32873 C9H15FO4 
206.21 C2H5 
O 
H9C4 
O 
COOHF 
C2H5 
O 
H9C4 
O 
COOHF 
+ 
(R,S)-2-Butyl-2-fluoro-malonic acid 
monoethyl ester 
III/35b 2.2:834 
32874 C9H15F3Sn 
298.9 Sn CF3 
Trimethyl-(3-trifluoromethyl-
bicyclo[1.1.1]pent-1-yl)-stannane 
III/35c4 2.2:891 
32875 C9H15Ga 
192.94 
CH3 Tris-(1-(E)-propenyl)-gallane III/35c4 2.2:892 
Ga 
H3C CH3 
32876 C9H15INP 
295.1 I(-)Ph 
NH 
P(+) C9H15INP III/35b 3.2:1130 
32877 C9H15INPS 
327.17 
S 
I(-)Ph 
NH 
P(+) 
CH3 
C9H15INPS III/35b 3.2:1131 
32878 C9H15N 
137.22 
2-Butyl-1-methyl-1H-pyrrole III/35c2 2.2:710 
C4H9N 
CH3 
32879 C9H15N 
137.22 N 
1-Cyclopent-1-enyl-pyrrolidine III/35b 3.2:1132 
32880 C9H15NO 
153.22 
(E/Z) 
CH3 
O N 
CH3 
4-Pyrrolidin-1-yl-pent-3-en-2-one III/35e 2.2.1:1041 
32881 C9H15NO 
153.22 
O 
NH 
C2H5 2-[1-Ethylamino-meth-(Z)-ylidene]-
cyclohexanone 
III/35e 2.2.1:1043 
32882 C9H15NO 
153.22 
N 
CH3 2-[1-Dimethylamino-methylidene]-
cyclohexanone 
III/35e 2.2.1:1044 
CH3 
O 
32883 C9H15NO 
153.22 
O NH 
CH3 
CH3 3-Isopropylamino-cyclohex-2-enone III/35e 2.2.1:1045 
32884 C9H15NO 
153.22 
(E/Z) 4-Piperidin-1-yl-but-3-en-2-one III/35e 2.2.1:1040 
O 
N 
H3C 
32885 C9H15NO 
153.22 
N 
(1S*,5R*)-6,6-Dimethyl-
bicyclo[3.1.1]heptan-2-one oxime 
III/35e 2.2.2:2839 
OH 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32886 C9H15NO 
153.22 O 
(3aS,7aS)-1-Methyl-octahydro-indol-2-one III/35c2 2.2:711 
N 
CH3 
32887 C9H15NOS 
185.29 
O CH3 3-Methyl-1-(2-thioxo-pyrrolidin-1-yl)-butan-
1-one 
III/35c2 2.2:713 
CH3N 
S 
32888 C9H15NOS 
185.29 
CH3 
O 
H3C 
S 
N 
2-Methyl-1-(2-thioxo-piperidin-1-yl)-propan-
1-one 
III/35c2 2.2:712 
32889 C9H15NO2 
169.22 
O CH3 3-(Isopropylamino-methylene)-pentane-2,4-
dione 
III/35e 2.2.1:1046 
H3C NH CH3 
O CH3 
32890 C9H15NO2 
169.22 
O 
N CH3 
3-Butyl-1,3-dimethyl-azetidine-2,4-dione III/35c2 2.2:715 
H9C4 
O 
32891 C9H15NO2 
169.22 
H3C 
H3C 
CH3N 
O 
H3C 
O 
(3-Methoxy-4-methyl-furan-2-ylmethyl)dimethyl-
amine 
III/35c2 2.2:717 
32892 C9H15NO2 
169.22 
CH3O 3,4-Dimethoxy-1-propyl-1H-pyrrole III/35c2 2.2:718 
O 
H3C 
N 
C3H7 
32893 C9H15NO2 
169.22 
O 
O N 
H5C2 
(E,Z)-3-Pyrrolidin-1-yl-acrylic acid ethyl 
ester 
III/35e 2.2.1:1047 
32894 C9H15NO2 
169.22 
OH3C OH3C (R,S)-5-Dimethylaminomethyl-2,4-dimethyl-
furan-3-one 
III/35c2 2.2:716 
CH3O CH3O+ 
H3C CH3 
N 
H3C CH3 
N 
32895 C9H15NO2 
169.22 N 
4-(4,4-Dimethyl-4,5-dihydro-oxazol-2-yl)-
butan-2-one 
III/35c2 2.2:714 
CH3 
O 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32896 C9H15NO2S 
201.29 S S 
(R,S)-2-tert-Butyl-2-hydroxy-4-methyl-4H-
[1,4]thiazin-3-one 
III/35c2 2.2:719 
OH OH 
+ 
ON ON 
CH3 CH3 
32897 C9H15NO3 
185.22 
H5C2 O 
O 
O 
NH 
CH3 
CH3 
(Z)-4-Isopropylamino-2-oxo-but-3-enoic 
acid ethyl ester 
III/35e 2.2.1:1042 
32898 C9H15NO3 
185.22 
O 
C2H5O + 
O 
C2H5O 
3-((R,S)-5-Oxo-pyrrolidin-2-yl)-propionic 
acid ethyl ester 
III/35c2 2.2:720 
NH NH 
O O 
32899 C9H15NO3S 
217.28 
O 
H3C 
O 
S 
(S)-5-Hydroxymethyl-6,6-dimethyl-5,6-
dihydro-4H-[1,4]thiazine-2-carboxylic acid 
methyl ester 
III/35c2 2.2:721 
OH 
NH 
32900 C9H15NO5 
217.22 
H3C 
O 
5,5-Dimethoxy-2-oxo-piperidine-1-
carboxylic acid methyl ester 
III/35c2 2.2:722 
O 
CH3 
O N 
O O 
CH3 
32901 C9H15NSn 
255.91 Sn CN 
3-Trimethylstannanyl-
bicyclo[1.1.1]pentane-1-carbonitrile 
III/35c4 2.2:893 
32902 C9H15NSn 
255.91 SnPh 
NH Phenylamino-trimethylstannane III/35b 3.2:1133 
32903 C9H15N3 
165.24 
CH3 1-((E)-3,3-Dimethyl-but-1-enyl)-5-methyl-
1H-[1,2,3]triazole 
III/35c2 2.2:723 
N 
NN 
32904 C9H15N3O4 
229.23 
O 
NO2 
NH 
NH 
C2H5 
O 
4-Imidazolidin-2-ylidene-4-nitro-butyric acid 
ethyl ester 
III/35c2 2.2:724 
32905 C9H15N5 
193.25 
NH2 2-Piperidin-1-yl-pyrimidine-4,6-diamine III/35b 3.2:1134 
N 
NH2N N 
32906 C9H15O2P 
186.19 
P 
O 
O 
(1R,6S,7R)-7-Methyl-10-oxa-7-phospha-
tricyclo[4.3.1.01,6]decane 7-oxide 
III/35a 3.2:851 
32907 C9H15O2PSi 
214.27 
O C9H15O2PSi III/35a 3.2:852 
PH Si 
Ph O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32908 C9H15PSn 
272.88 Ph 
PH 
Sn 
Phenylphosphino-trimethylstannane III/35a 3.2:853 
32909 C9H16BOP 
182.01 P 
BH3 
O 
H3C 
p-Methoxy-phenyl-dimethyl-phosphane -
borane (1:1) 
III/35a 2.2:861 
32910 C9H16BP 
166.01 P 
BH3 
H3C 
p-Methyl-phenyl-dimethyl-phosphane -
borane (1:1) 
III/35a 2.2:862 
32911 C9H16B7Fe 
255.75 
2-(MePh)Fe-1,6-B7C2H9 III/35a 2.2:863 
32912 C9H16BrO5P 
315.1 
(E/Z) 
Br 
H5C2 
C9H16BrO5P III/35a 3.2:854 
O 
H5C2 
O 
P 
O 
O 
C2H5 
O 
32913 C9H16ClNOPtS 
416.82 
Cl 
NPtS 
O 
H3C 
C9H16ClNOPtS III/35c4 2.2:894 
32914 C9H16ClN3O2 
233.69 
O C9H16ClN3O2 III/35b 3.2:1135 
Cl 
NH N 
N 
O 
32915 C9H16F2 
162.22 
C4H9 
F F 
C4H9 
F F 
+ 
(R,S)-3-Butyl-1,1-difluoro-2,2-dimethyl-
cyclopropane 
III/35b 2.2:837 
32916 C9H16F2O 
178.22 
H3C CH2 
F F 
CH3 OH (R,S)-3,3-Difluoro-4,6-dimethyl-hept-1-en-
4-ol 
III/35b 2.2:839 
+ 
CH3 OH 
H3C CH2 
F F 
32917 C9H16F2O2Si 
222.3 
F O 
C2H5 
3,3-Difluoro-2-trimethylsilanylmethyl-acrylic 
acid ethyl ester 
III/35b 2.2:841 
F O 
Si 
32918 C9H16F2O4 
226.22 
OH 4,4-Difluoro-3-(2-methoxy-ethoxymethoxy)-
2-methyl-but-3-en-2-ol 
III/35b 2.2:843 
F O 
O O CH3 
F 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32919 C9H16F2O4 
226.22 O O O 
CH3H5C2 
OH (R,S)-1,1-Difluoro-2-(2-methoxy-
ethoxymethoxy)-pent-1-en-3-ol 
III/35b 2.2:844 
FF 
+ 
O O O 
CH3H5C2 
OH 
FF 
32920 C9H16NO4P 
233.2 O O 
H5C2 O 
P 
CH3 
N 
O 
C2H5 (3-Methyl-isoxazol-5-ylmethyl)-phosphonic 
acid diethyl ester 
III/35c2 2.2:725 
32921 C9H16N2O 
168.24 H5C2 
C2H5 
O 
NN 
(3S,5S)-3,5-Diethyl-3,5-dimethyl-3,5-
dihydro-pyrazol-4-one 
III/35c2 2.2:726 
32922 C9H16N2O 
168.24 
(E/Z) 
H3C 
N 
N CH3 
O 
(E,Z)-4-(4-Methyl-piperazin-1-yl)-but-3-en-
2-one 
III/35e 2.2.1:1048 
32923 C9H16N2OS 
200.3 N 
NHS 
H3C 
O 
C2H5 N 
NHS 
H3C 
O 
+ 
C2H5 
(R,S)-5-(1,1-Dimethyl-propyl)-3-methyl-2-
thioxo-imidazolidin-4-one 
III/35e 2.2.1:1049 
32924 C9H16N2O2 
184.24 CH3 
O 2-Isobutyryl-5,5-dimethyl-pyrazolidin-3-one III/35c2 2.2:727 
N 
CH3NH 
O 
32925 C9H16N2S 
184.3 
NH 
1-Ethyl-4,4,6-trimethyl-3,4-dihydro-1H-
pyrimidine-2-thione 
III/35c2 2.2:728 
CH3S N 
C2H5 
32926 C9H16O 
140.22 
O 
CH3 CH3 2-Methyl-3-(2-methyl-propenyloxy)-but-2-
ene 
III/35e 2.2.2:2840 
H3C CH3 
CH3 
32927 C9H16O 
140.22 
O 
CH3 CH3 3-Methyl-2-(2-methyl-propenyloxy)-but-1-
ene 
III/35e 2.2.2:2841 
H3C CH3 
CH2 
32928 C9H16O 
140.22 
2,2,5,5-Tetramethyl-cyclopentanone III/35e 2.2.1:1050 
4541-35-9 
O 
32929 C9H16O 
140.22 
O 
CH3 
CH2 (1-Methoxy-vinyl)-cyclohexane III/35e 2.2.2:2842 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32930 C9H16O 
140.22 
O CH3 
CH3 (1-Methoxy-ethylidene)-cyclohexane III/35e 2.2.2:2843 
32931 C9H16O 
140.22 
OH OH 
+ 
(1S*,2S*,5R*)-6,6-Dimethyl-
bicyclo[3.1.1]heptan-2-ol 
III/35e 2.2.2:2845 
32932 C9H16O 
140.22 
50438-51-2 
O 
CH3 (E)-1-Methoxy-cyclooctene; 
1-Methoxycyclooctene 
III/35e 2.2.2:2844 
32933 C9H16OS 
172.29 
67530-09-0 S 
O 
S 
O 
+ 
2H-1-Benzothiopyran, octahydro-, 1-oxide, 
(1a,4a,8aa)-; 
(1a,4ab,8aa)-Octahydro-2H-1-
benzothiopyran 1-oxide; 
(1S*,4aR*,8aS*)-Octahydro-thiochromene 
1-oxide 
III/35e 2.2.5:4241 
32934 C9H16OS 
172.29 
67530-10-3 S 
O 
S 
O 
+ 
2H-1-Benzothiopyran, octahydro-, 1-oxide, 
(1a,4aa,8a)-; 
(1R*,4aR*,8aS*)-Octahydro-thiochromene 
1-oxide 
III/35e 2.2.5:4240 
32935 C9H16O2 
156.22 
CH3 CH3 2,6-Dimethyl-heptane-3,5-dione III/35e 2.2.1:1053 
H3C CH3 
O O 
32936 C9H16O2 
156.22 
104-61-0 
OO C5H11 
OO C5H11 
+ 
.-Amyl-.-butyrolactone; 
2(3H)-Furanone, dihydro-5-pentyl-; 
Nonanoic acid, 4-hydroxy-, .-lactone; 
(R,S)-5-Pentyl-dihydro-furan-2-one 
III/35e 2.2.1:1054 
32937 C9H16O2 
156.22 
O O (R,S)-6-Methyl-1,4-dioxa-spiro[4.5]decane III/35e 2.2.2:2846 
O O+ 
CH3 CH3 
32938 C9H16O2 
156.22 
O 
O 
H3C 
O 
O 
H3C 
+ 
(R,S)-7-Methyl-1,4-dioxa-spiro[4.5]decane III/35e 2.2.2:2847 
32939 C9H16O2 
156.22 
O (2S*,4aR*,8aR*)-2-Methyl-hexahydro-
benzo[1,3]dioxine 
III/35e 2.2.2:2848 
O CH3 
+ 
O 
O CH3 
32940 C9H16O2 
156.22 
O (2R*,4aR*,8aS*)-2-Methyl-hexahydro-
benzo[1,3]dioxine 
III/35e 2.2.2:2849 
O CH3 
+ 
O 
O CH3 
32941 C9H16O2S 
188.29 
OO 
C2H5S 
OO 
C2H5S+ 
(R,S)-2-Ethyl-2,5,5-trimethyl-2,5-dihydro-
thiophene 1,1-dioxide 
III/35c2 2.2:729 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32942 C9H16O2S 
188.29 
(4aR,8aS)-Octahydro-thiochromene 1,1-
dioxide 
III/35e 2.2.5:4242 
S 
O O 
32943 C9H16O3 
172.22 
17094-34-7 
O O 
O 
C2H5 
4,4-Dimethyl-3-oxo-pentanoic acid ethyl 
ester; 
Ethyl 4,4,4-trimethylacetoacetate; 
ethyl 4,4-dimethyl-3-oxovalerate; 
Pentanoic acid, 4,4-dimethyl-3-oxo-, ethyl 
III/35e 2.2.1:1055 
ester 
32944 C9H16O3 
172.22 
CH3 
OH CH2 
OO 
3-Allyl-2-methoxy-tetrahydro-pyran-3-ol III/35c2 2.2:730 
32945 C9H16O4 
188.22 
O 
CH3 
O 
O 
H5C2 O 
CH3 5-Ethyl-2-methoxy-tetrahydro-furan-2-
carboxylic acid methyl ester 
III/35c2 2.2:732 
32946 C9H16O4 
188.22 
O 
C2H5O 
O 
O 
2,2-Dimethyl-[1,3]dioxane-5-carboxylic acid 
ethyl ester 
III/35c2 2.2:731 
32947 C9H16O6 
220.22 
31718-77-1 
O 
O 
O 
OH 
OH 
OH 
1,2-O-Isopropylidene-b-L-talofuranose; 
1,2-O-Isopropylidene--L-talofuranose; 
-L-Talofuranose, 1,2-O-(1-
methylethylidene)-; 
Talofuranose, 1,2-O-isopropylidene-, -L-
1,2-diol 
III/35e 2.2.2:2850 
32948 C9H16Pt 
319.3 (-) 
Pt(+) 
H5C2 
CH3 
CH3 
Cyclopentadienyl-ethyl-dimethyl-platinum III/35c4 2.2:895 
32949 C9H16Pt 
319.3 (-) 
CH3 
CH3 
H3C 
Pt(+) 
Methylcyclopentadienyl-tridimethyl-platinum III/35c4 2.2:896 
32950 C9H17AlBCl3S 
301.45 
B 
S 
H3C 
Al 
Cl 
Cl Cl 9-Methylthio-9-Borabicyclo[3.3.1]nonane - 
aluminiumtrichloride (1:1) 
III/35a 2.2:864 
32951 C9H17B 
136.04 
23418-81-7 B CH3 
9-Borabicyclo[3.3.1]nonane, 9-methyl-III/35a 2.2:866 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32952 C9H17B 
136.04 
H3C B 
H3C B 
+ 
C9H17B III/35a 2.2:865 
32953 C9H17BO 
152.04 
38050-71-4 B O 
CH3 9-Borabicyclo[3.3.1]nonane, 9-methoxy-; 
9-Methoxy-9-bora-bicyclo[3.3.1]nonane 
III/35a 2.2:868; 
III/35e 2.2.2:2851 
32954 C9H17BO 
152.04 O B 
H3C 
C9H17BO III/35a 2.2:867 
O B 
H3C 
+ 
32955 C9H17BO 
152.04 
99966-26-4 
B 
O 
CH3 10-Methyl-9-oxa-10-bora-
bicyclo(3.3.2)decane 
III/35a 2.2:869 
32956 C9H17BO2 
168.04 
H2C 
B 
O 
C2H5 
C2H5 
O 
C9H17BO2 III/35a 2.2:870 
32957 C9H17B8N 
225.73 
See appendix No: 32957 C9H17B8N III/35c4 2.2:897 
32958 C9H17F 
144.23 
CH2H15C7 
F 
2-Fluoro-non-1-ene III/35b 2.2:845 
32959 C9H17FO 
160.23 H2C 
OH (4S,5R)-4-Fluoro-non-1-en-5-ol III/35b 2.2:846 
C4H9 
F 
32960 C9H17FO4 
208.23 
O 
F 
O 
O 
CH3 
C2H5HO 
+ 
(E)-(R,S)-1-Fluoro-2-(2-methoxy-
ethoxymethoxy)-pent-1-en-3-ol 
III/35b 2.2:847 
O 
F 
O 
O 
CH3 
C2H5HO 
32961 C9H17F2O3P 
242.2 H5C2 O 
P 
OH5C2 O 
F F 
CH3 
(1,1-Difluoro-pent-3-enyl)-phosphonic acid 
diethyl ester 
III/35b 2.2:848 
32962 C9H17F3O2 
214.22 
F3C 
CH3 
OH OH 
CH3 
(2S,4S)-1,1,1-Trifluoro-7-methyl-octane-
2,4-diol 
III/35b 2.2:651 
32963 C9H17N 
139.24 
N 
C2H5 
C2H5 Cyclopent-1-enyl-diethyl-amine III/35b 3.2:1139 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32964 C9H17N 
139.24 N 
1-Cyclopentyl-pyrrolidine III/35b 3.2:1136 
32965 C9H17N 
139.24 
673-33-6 
N 
CH3 
CH3 
1-(2-Methyl-1-propenyl)piperidine; 
1-(2-Methyl-propenyl)-piperidine; 
Piperidine, 1-(2-methyl-1-propenyl)-; 
Piperidine, 1-(2-methylpropenyl)- 
III/35b 3.2:1140 
32966 C9H17NO 
155.24 
H3C O 
CH3 
(Z)-4-Isobutylamino-pent-3-en-2-one III/35e 2.2.1:1056 
NH 
CH3 
CH3 
32967 C9H17NO 
155.24 
(E,Z)-1-Dimethylamino-4,4-dimethyl-pent-1-
en-3-one 
III/35e 2.2.1:1057 
N 
CH3 
O 
CH3 
32968 C9H17NO 
155.24 
O 4-Piperidinone, 2,2,6,6-tetramethyl-; 
4-Piperidone, 2,2,6,6-tetramethyl-; 
III/35e 2.2.1:1058 
826-36-8 NH 2,2,6,6-Tetramethyl-4-oxopiperidine; 
2,2,6,6-Tetramethyl-piperidin-4-one 
32969 C9H17NO 
155.24 N 
O CH2 1-(2-Vinyloxy-ethyl)-piperidine III/35e 2.2.2:2852 
32970 C9H17NO 
155.24 N 
O 
C2H5 1-Ethyl-azocan-5-one III/35e 2.2.1:1059 
32971 C9H17NO 
155.24 
NH 
O 
+ 
NH 
O (5R*,6S*)-6-Methyl-1-oxa-4-aza-
spiro[4.5]decane 
III/35e 2.2.2:2853 
CH3 CH3 
32972 C9H17NO 
155.24 
O 
NH 
+ 
O 
NH (5S*,6S*)-6-Methyl-1-oxa-4-aza-
spiro[4.5]decane 
III/35e 2.2.2:2854 
CH3 CH3 
32973 C9H17NO 
155.24 
NH 
O 
H3C H3C 
+ NH 
O (5R*,7R*)-7-Methyl-1-oxa-4-aza-
spiro[4.5]decane 
III/35e 2.2.2:2855 
32974 C9H17NO 
155.24 
O 
NH 
H3C H3C 
+ O 
NH (5S*,7R*)-7-Methyl-1-oxa-4-aza-
spiro[4.5]decane 
III/35e 2.2.2:2856 
32975 C9H17NOS 
187.3 
NH 
S 
O tert-Butyl-[1-oxo-tetrahydro-1.4-thiophen-
(2E)-ylidenemethyl]-amine 
III/35e 2.2.5:4243 
32976 C9H17NO2 
171.24 
N N 
(R,S)-3-(4,4-Dimethyl-4,5-dihydro-oxazol-2-
yl)-butan-1-ol 
III/35c2 2.2:733 
O O+ 
H3C H3C 
OH OH 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32977 C9H17NO2S 
203.3 
O S (R,S)-Thiazolidin-2-yl-acetic acid tert-butyl 
ester 
III/35c2 2.2:734 
O NH 
+ 
O S 
O NH 
32978 C9H17NO2S3 
267.43 
C2H5 
H5C2 
N S 
SS 
O 
O 
Diethyl-dithiocarbamic acid (R,S)-1,1-
dioxo-tetrahydro-1.6-thiophen-3-yl ester 
III/35e 2.2.5:4244 
+ 
C2H5 
H5C2 
N S 
SS 
O 
O 
32979 C9H17NO3 
187.24 
C9 H17 N1 O3 III/35b 3.2:1141 
32980 C9H17NO3 
187.24 
C9H17N1O3 III/35b 3.2:1142 
32981 C9H17NO3 
187.24 
C9H17NO3 III/35b 3.2:1143 
32982 C9H17NO3Si 
215.32 O 
OH2C 
O Si 
C9H17NO3Si III/35b 3.2:1144 
N 
32983 
346.43 
C9H17NPb 2,5-Dimethy-1-trimethyplumbanyl-1H-
pyrrole 
llIII/35c4 2.2:898 
NH3C CH3 
Pb 
32984 
167.32 
C9H17NSi 2,5-Dimethy-1-trimethysilanyl-1H-pyrrole llIII/35c4 2.2:899 
NH3C CH3 
Si 
32985 
257.93 
C9H17NSn 2,5-Dimethy-1-trimethystannanyl-1H-
pyrrole 
llIII/35c4 2.2:900 
NH3C CH3 
Sn 
32986 C9H17O3P 
204.2 H3C 
CH3 
H3C 
Propa-1,2-dienyl-phosphonic acid 
diisopropyl ester 
III/35c4 2.2:901 
C 
CH2 
O 
PH3C 
O O 
32987 
220.2 
C9H17O4P H5C2 
CH3 
O 
PH5C2 O 
O O ((E)-3-Methyl-4-oxo-but-2-enyl)-phosphonic 
acid diethyl ester 
III/35a 3.2:855 
32988 C9H17O5P 
236.2 
O 
O 
O 
O 
C2H5O 
PH7C3 
CH2 2-(Methyl-propoxy-phosphinoyloxy)-acrylic 
acid ethyl ester 
III/35a 3.2:856 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
32989 C9H17O5P 
236.2 H5C2 
O 
P 
O OH5C2 
C2H5 
O 
CH2 
O 2-(Diethoxy-phosphoryl)-acrylic acid ethyl 
ester 
III/35c4 2.2:902 
32990 C9H18B 
137.05 
C9H18B-III/35a 2.2:871 
32991 C9H18B 
137.05 
BH(-) C9H18B III/35a 2.2:872 
32992 C9H18BP 
168.02 B 
H2C CH2 
P 
H2C 
C9H18BP III/35a 2.2:873 
32993 C9H18B2Cl2 
218.77 B 
C2H5Cl 
H5C2 C9H18B2Cl2 III/35a 2.2:874 
B 
Cl C2H5 
CH3 
32994 C9H18B2O4 
211.86 
O 
B 
O 
O 
O 
B C2H5H5C2 
3,9-Diethyl-2,4,8,10-tetraoxa-3,9-dibora-
spiro[5.5]undecane 
III/35e 2.2.2:2857 
32995 C9H18ClO5P 
272.66 
O 
O 
C2H5 
C2H5P 
O O 
O 
H5C2 
(R,S)-2-Chloro-2-(diethoxy-phosphoryl)propionic 
acid ethyl ester 
III/35a 3.2:857 
Cl 
+ 
O C2H5O O 
O 
C2H5P 
O 
H5C2 
Cl 
32996 C9H18Cl2N2Ru 
326.23 Ru 
Cl 
NH2 
CH3 
C9H18Cl2N2Ru III/35c4 2.2:903 
NH2 
Cl 
CH3 
32997 C9H18FO3P 
224.21 CH3 O 
CH3 
O 
((E)-1-Fluoro-propenyl)-phosphonic acid 
diisopropyl ester 
III/35b 2.2:849 
P 
CH3 
OH3C CH3 
F 
32998 C9H18MoN4S7 
502.66 
Mo(NS)(S2CN(Me)2)3 III/35b 3.2:1145 
32999 C9H18N2O 
170.25 
6130-93-4 N N 
O 
1-Nitroso-2,2,6,6-tetramethylpiperidine; 
2,2,6,6-Tetramethyl-1-nitroso-piperidine 
III/35e 2.2.3:3565 
33000 C9H18N2OS 
202.32 
C2H5 
OHS N 
NH 
C2H5 
OHS N 
NH 
+ 
(R,S)-1-Ethyl-6-hydroxy-4,4,6-trimethyl-
tetrahydro-pyrimidine-2-thione 
III/35c2 2.2:735 
33001 C9H18N4 
182.27 
N 
N 
N 
N 2,5-Di-tert-butyl-2H-tetrazole III/35b 3.2:1146 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
33002 C9H18O 
142.24 
CH3 
H2C O 
CH3 
CH3H3C 2,4-Dimethyl-3-vinyloxy-pentane III/35e 2.2.2:2858 
33003 C9H18O 
142.24 CH3 
CH3H3C (E)-3-Methoxy-2,5-dimethyl-hex-3-ene III/35e 2.2.2:2859 
CH3 
OH3C 
33004 C9H18O 
142.24 
CH3 
H3C 
CH3 
O 
CH3 
CH3 
3-Methoxy-2,5-dimethyl-hex-2-ene III/35e 2.2.2:2860 
33005 C9H18O 
142.24 
CH3 
OCH3 
(Z)-3-Methoxy-2,5-dimethyl-hex-3-ene III/35e 2.2.2:2861 
CH3 
H3C 
CH3 
33006 C9H18O 
142.24 
OH OH (1S*,5R*)-3,3,5-Trimethyl-cyclohexanol III/35e 2.2.2:2862 
+ 
CH3 CH3 
33007 C9H18O 
142.24 
OH OH (1R*,5R*)-3,3,5-Trimethyl-cyclohexanol III/35e 2.2.2:2863 
+ 
CH3 CH3 
33008 C9H18O2 
158.24 
O O (R,S)-2,2,4,4,6-Pentamethyl-[1,3]dioxane III/35e 2.2.2:2864 
O + O 
CH3 CH3 
33009 C9H18O3 
174.24 O 
O 
2,2-Dimethyl-propaneperoxoic acid tertbutyl 
ester 
III/35e 2.2.1:1062 
O 
33010 C9H18O3OsP2 
426.42 C 
O P 
Bis-(Trimethylphosphin)-tricarbonyl-osmium III/35c4 2.2:904 
Os C O 
C 
O P 
33011 C9H18O3S 
206.3 S 
O O (1R,2R)-2-(Propane-1-sulfonyl)-
cyclohexanol 
III/35e 2.2.5:4245 
C3H7 
OH 
33012 C9H18O3S 
206.3 
O O 
4,4,5,5,6,6-Hexamethyl-[1,3,2]dioxathiane 
2-oxide 
III/35e 2.2.5:4248 
S 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
33013 C9H18O3S 
206.3 
(cis) 
OO + OO 
(2S*,6S*)-6-tert-Butyl-4,4-dimethyl-
[1,3,2]dioxathiane 2-oxide 
III/35e 2.2.5:4246 
S S 
O O 
33014 C9H18O3S 
206.3 
(trans) 
OO + OO 
(2R*,6S*)-6-tert-Butyl-4,4-dimethyl-
[1,3,2]dioxathiane 2-oxide 
III/35e 2.2.5:4247 
S S 
O O 
33015 C9H18Sn 
244.93 Sn 
Trimethyl-(3-methyl-bicyclo[1.1.1]pent-1-yl)-
stannane 
III/35c4 2.2:905 
33016 C9H19AlBCl3SeSi 
378.44 
SiB 
H5C2 CH3 C9H19AlBCl3SeSi III/35c4 2.4:3366 
SeH5C2 
Al Cl 
Cl Cl 
33017 C9H19BN2 
166.07 
H2C 
B 
N 
H3C CH3 
CH3 
N 
CH3 
C9H19BN2 III/35a 2.2:875 
33018 C9H19BOSi 
182.14 
CH3 
O 
H5C2 
H5C2 B Si 
4,5-Diethyl-2,2,3-trimethyl-2,5-dihydro-
[1,2,5]oxasilaborole 
III/35e 2.2.6:4457 
33019 C9H19BO2 
170.06 
34574-27-1 
O 
O 
B 
C2H5 
C2H5 
Trimethylacetic acid, anhydride with 
diethylborinic acid 
III/35a 2.2:876 
33020 C9H19BSeSi 
245.1 
Si 
Se 
B 
CH3H5C2 
H5C2 
C9H19BSeSi III/35c4 2.4:3367 
33021 C9H19B9IO3W 
583.29 
[closo-1,8-Me2-11-Et-2-I-2,2,2-(CO)3-2,1,8-
WC2B9H8]-
III/35a 2.2:877 
33022 C9H19BrOSi 
251.24 
1-[1-Bromo-meth-(Z)-ylidene]-2,2-dimethyl-
propoxy-trimethyl-silane 
III/35e 2.2.2:2865 
Si 
O 
Br 
33023 C9H19ClOSi 
206.78 
1-[1-Chloro-meth-(Z)-ylidene]-2,2-dimethyl-
propoxy-trimethyl-silane 
III/35e 2.2.2:2866 
Si 
O 
Cl 
33024 C9H19IOSi 
298.24 Si 
I 
C3H7 
OH 
+ Si 
I 
C3H7 
OH 
(Z)-(R,S)-1-Iodo-1-trimethylsilanyl-hex-1-
en-3-ol 
III/35c4 2.2:906 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
33025 C9H19NO 
157.25 
H9C4 N 
OH 
C4H9 Nonan-5-one oxime III/35e 2.2.3:3566 
33026 C9H19NO 
157.25 
CH3 2,6-Dimethyl-heptan-4-one oxime III/35e 2.2.3:3567 
CH3 CH3 
OH 
NH3C 
33027 C9H19NO 
157.25 N 
OH 
2,2,4,4-Tetramethyl-pentan-3-one oxime III/35e 2.2.3:3568 
33028 C9H19NO3 
189.25 NH O 
C9H19NO3 III/35e 2.2.2:2867 
H9C4 O 
O 
33029 C9H19NO3SSi 
249.4 
SH C9H19NO3SSi III/35b 3.2:1148 
O 
SiO O 
N 
33030 C9H19NS 
173.32 
CH3 
CH3S 
N 
CH3 
CH3S 
N+ 
(R,S)-3-Isopropylsulfanyl-1-methyl-
piperidine 
III/35c2 2.2:736 
CH3 CH3 
33031 C9H19NS2 
205.38 S 
(S)-2-(Bis-ethylsulfanyl-methyl)-pyrrolidine III/35c2 2.2:737 
C2H5NH 
S 
H5C2 
33032 C9H19N2OP 
202.23 
N OH3C 
CH3 CH3 
C9H19N2OP III/35c4 2.2:907 
C 
N 
PH3C CH3 
CH3 
33033 C9H19N2O3P 
234.23 P 
O O CH3 
CH3 
(4-Allyl-piperazin-1-yl)-phosphonic acid 
dimethyl ester 
III/35b 3.2:1149 
N O 
N 
H2C 
33034 C9H19NiO2P 
248.91 
(delocalized system) 
Ni 
O 
CH3 
C9H19NiO2P III/35c4 2.2:908 
OP 
CH3 
33035 C9H19O2P 
190.22 
PH 
O 
O 
CH3 
CH3 
Cyclohexyl-phosphinic acid isopropyl ester III/35a 3.2:858 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
33036 C9H19O3PSe 
285.18 
O 
PO Se 
O CH3 
H3C 
CH3 
O 
PO Se 
O CH3 
H3C 
CH3 
+ 
(2R*,4R*)-4-Isopropyl-2-methoxy-5,5-
dimethyl-[1,3,2]dioxaphosphinane 2selenide 
III/35a 3.2:859 
33037 C9H19O3PSe 
285.18 
O 
PO Se 
O CH3 
H3C 
CH3 
O 
PO Se 
O CH3 
H3C 
CH3 
+ 
(2S*,4R*)-4-Isopropyl-2-methoxy-5,5-
dimethyl-[1,3,2]dioxaphosphinane 2selenide 
III/35a 3.2:860 
33038 C9H19O4P 
222.22 P 
O O C2H5 
O 
C2H5 
(1-Hydroxy-cyclopentyl)-phosphonic acid 
diethyl ester 
III/35a 3.2:861 
OH 
33039 C9H19O4PS 
254.28 
(E/Z) 
O O C2H5CH3O 
C9H19O4PS III/35c4 2.2:909 
P 
O 
C2H5 
H3C 
S 
H3C 
33040 C9H20B2N6 
233.92 NN N 
CH3 H3C C9H20B2N6 III/35a 2.2:878 
BB C 
NN 
N 
CH3 CH3 
33041 C9H20F2O6P2 
324.2 O O 
F F [(Diethoxy-phosphoryl)-difluoro-methyl]phosphonic 
acid diethyl ester 
III/35b 2.2:850 
PPH5C2 C2H5 
OH5C2 O C2H5O O 
33042 C9H20NO3PS2 
285.36 
See appendix No: 33042 ((R,S)-Ethylthiocarbamoyl-methylsulfanylmethyl)-
phosphonic acid diethyl ester 
III/35c4 2.2:910 
33043 C9H20N2 
156.27 N 
CH3 
N 
H9C4 
1-Butyl-4-methyl-piperazine III/35b 3.2:1150 
33044 C9H20N2S 
188.33 
4274-15-1 H5C2 
N N 
C2H5 
S 
C2H5 C2H5 
Tetraethyl-thiourea; 
Thiourea, tetraethyl- 
III/35b 3.2:1151 
33045 C9H20N2Si2 
212.44 
NH 
NSi 
Si 
3,4-Bis-trimethylsilanyl-1H-pyrazole III/35c4 2.2:911 
33046 C9H20N2Si2 
212.44 
N 
NSi 
Si 
1,3-Bis-trimethylsilanyl-1H-pyrazole III/35c4 2.2:912 
33047 C9H20N2Si2 
212.44 N 
N 
Si 
Si 
1,4-Bis-trimethylsilanyl-1H-pyrazole III/35c4 2.2:913 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
33048 C9H20N3P 
201.25 
P 
N 
CH3 
N 
1-(1,3-Dimethyl-[1,3,2]diazaphospholidin-2-
yl)-piperidine 
III/35b 3.2:1152 
N 
CH3 
33049 C9H20O2Sn 
278.94 
Sn O 
CH3 (2S,3S)-2-Methyl-3-trimethylstannanyl-
butyric acid methyl ester 
III/35c4 2.2:914 
CH3 
OCH3 
33050 C9H20O2Sn 
278.94 
Sn O 
CH3 (2S,3R)-2-Methyl-3-trimethylstannanyl-
butyric acid methyl ester 
III/35c4 2.2:915 
CH3 
OCH3 
33051 C9H20O5Si 
236.34 H5C2 
O 
Si O 
OH5C2 O C2H5 
O 
CH3 
Acetoxymethyltriethoxysilane III/35e 2.2.2:2869 
33052 C9H20Sn2 
365.63 Sn 
Sn 
1,3-Bis-trimethylstannanyl-propyne III/35c4 2.2:916 
33053 C9H21As 
204.19 
5852-57-3 H7C3 
As 
C3H7 
C3H7 
Tripropyl-arsane; 
Tripropyl-arsine 
III/35c4 2.2:917 
33054 C9H21BN4 
196.1 
N 
NBN 
H3C 
CH3N 
CH3 C9H21BN4 III/35a 2.2:879 
33055 C9H21BO6 
236.07 O 
O 
CH3 
C9H21BO6 III/35e 2.2.2:2870 
O B O 
H3C OO CH3 
33056 C9H21B2NO2 
196.89 
B 
O 
N(+) 
B(-)O 
C2H5 
C2H5 
H5C2 
CH3 
CH3 
C9H21B2NO2 III/35a 2.2:880 
33057 C9H21B9Fe 
282.41 
1-(h6-C6Me3H3)FeB9H9 III/35a 2.2:881 
33058 C9H21ClN2P2 
254.68 
P N 
H3C 
1,3-Di-tert-butyl-2-chloro-4-methyl-
[1,3,2,4]diazadiphosphetidine 
III/35a 3.2:862 
N P 
Cl 
33059 C9H21ClO2OsP2 
448.89 
Os 
C 
O 
C 
O 
Cl 
CH3 
P 
P 
C9H21ClO2OsP2 III/35c4 2.2:918 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
33060 C9H21ClO3Si 
240.8 H7C3 
O 
Si 
O 
C3H7 
O C3H7Cl C9H21ClO3Si III/35e 2.2.2:2871 
33061 C9H21ClO6Si 
288.8 
O 
O 
O 
Si 
O 
O 
OCl 
CH3H3C 
CH3 
C9H21ClO6Si III/35e 2.2.2:2872 
33062 C9H21FO6P2 
306.2 
O 
P 
O 
P 
O 
F 
O O 
O 
H5C2 
H5C2 
C2H5 
C2H5 
[(Diethoxy-phosphoryl)-fluoro-methyl]phosphonic 
acid diethyl ester 
III/35a 3.2:863; 
III/35b 2.2:852 
33063 C9H21F2P 
198.23 
F 
P 
CH3 
CH3 
F 
H3C 
C9H21F2P III/35a 3.2:864 
CH3 
H3C CH3 
33064 C9H21IO2OsP2 
540.34 
Os 
C 
O 
C 
O 
I 
CH3 
P 
P 
C9H21IO2OsP2 III/35c4 2.2:919 
33065 C9H21MoN3O3 
315.22 
O 
N 
N 
C9H21MoN3O3 III/35e 2.2.7:4724 
Mo 
O N 
O 
33066 C9H21N 
143.27 
10471-20-2 
CH3 
CH3CH3 
H3C 
N 
CH3 
Diisobutylmethylamine; 
Dipropylamine, N,2,2'-trimethyl-; 
1-Propanamine, N,2-dimethyl-N-(2-
methylpropyl)-; 
N,2,2'-Trimethyldipropylamine 
III/35b 3.2:1154 
33067 C9H21NO2Si 
203.35 O 
Si 
H3C 2,2,4,6,8-Pentamethyl-
[1,3,6,2]dioxazasilocane 
III/35e 2.2.2:2873 
O 
N 
CH3H3C 
33068 C9H21N2OPS 
236.31 
((2S*,5S*)-5-tert-Butyl-2-thioxo-2.5-
[1,3,2]oxazaphosphinan-2-yl)-dimethyl-
III/35c4 2.2:920 
amine 
+ 
NHO NHO 
P P 
SNH3C 
CH3 
SNH3C 
CH3 
33069 C9H21N2OPS 
236.31 
((2R*,5S*)-5-tert-Butyl-2-thioxo-2.5-
[1,3,2]oxazaphosphinan-2-yl)-dimethyl-
III/35c4 2.2:921 
amine 
+ 
NHO NHO 
P P 
SNH3C 
CH3 
SNH3C 
CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
33070 C9H21N2O2P 
220.25 
((2S*,5S*)-5-tert-Butyl-2-oxo-2.5-
[1,3,2]oxazaphosphinan-2-yl)-dimethyl-
III/35c4 2.2:922 
amine 
+ 
NHO NHO 
P P 
ONH3C 
CH3 
ONH3C 
CH3 
33071 C9H21N2O2P 
220.25 
((2R*,5S*)-5-tert-Butyl-2-oxo-2.5-
[1,3,2]oxazaphosphinan-2-yl)-dimethyl-
III/35c4 2.2:923 
amine 
+ 
NHO NHO 
P P 
ONH3C 
CH3 
ONH3C 
CH3 
33072 C9H21N2O3P 
236.25 CH3P 
O O CH3 (4-Isopropyl-piperazin-1-yl)-phosphonic 
acid dimethyl ester 
III/35b 3.2:1155 
N O 
H3C N 
CH3 
33073 C9H21N3O3Re 
405.49 
Re(+) 
O 
O 
O 
N 
N 
N 
C9H21N3O3Re III/35e 2.2.7:4841 
33074 C9H21N3O3W 
403.12 
W 
O 
O 
O 
N 
N 
N 
C9H21N3O3W III/35e 2.2.7:4953 
33075 C9H21O3PSe 
287.19 
14540-49-9 CH3 O Se 
H3C 
CH3 
CH3 
Selenophosphoric acid O,O',O''- triisopropyl 
ester 
III/35a 3.2:865 
P 
OH3C O CH3 
33076 C9H22BN 
155.09 
C9H22BN III/35b 3.2:1156 
B 
NH 
CH3 
33077 C9H22ClN 
179.73 
NH(+) 
CH3 
Cl(-) 
Dibutyl-methyl-ammonium chloride III/35b 3.2:1157 
H9C4 C4H9 
33078 C9H22ClN 
179.73 
Cl(-) 
H3C 
NH(+) 
CH3 
CH3 CH3 CH3 Diisobutyl-methyl-ammonium chloride III/35b 3.2:1158 
33079 C9H22ClN 
179.73 
14488-44-9 
Cl(-) 
H7C3 
NH(+) 
C3H7 
C3H7 1-Propanamine, N,N-dipropyl-, 
hydrochloride; 
Tripropyl-ammonium chloride; 
Tripropylamine hydrochloride 
III/35b 3.2:1159 
33080 C9H22N2Si 
186.37 N 
CH3 
NSi 
1-Methyl-4-trimethylsilanylmethylpiperazine 
III/35b 3.2:1160 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
33081 C9H22O3Si 
206.35 
CH3 Tris(isopropoxy)silane III/35e 2.2.2:2874 
CH3CH3 O 
SiH 
H3C OO 
CH3H3C 
33082 C9H22O5P2 
272.22 
PH5C2 
O O 
P 
OH5C2 O O 
C2H5 
C2H5 C9H22O5P2 III/35a 3.2:866 
33083 C9H22O7P2PtS 
531.36 S 
Pt 
O 
PO 
H3C 
OH3C O CH3 
P 
O CH3OH3C 
O 
H3C 
C9H22O7P2PtS III/35a 3.2:867 
33084 C9H22P2 
192.22 
H2P PH2 5,5-Bis-phosphanyl-nonane III/35a 3.2:868 
H9C4 C4H9 
33085 C9H22P2 
192.22 
P 
CH3 CH3 1-Ethyl-2,2-diisopropyl-1-methyl-
diphosphane 
III/35a 3.2:869 
H5C2 P CH3 
CH3H3C 
33086 C9H22P2 
192.22 
P 
CH3 1-tert-Butyl-1,2-diethyl-2-methyl-
diphosphane 
III/35a 3.2:870, 
871 
H5C2 P 
C2H5 
33087 C9H23AlP2 
220.21 
(delocalized system) C9H23AlP2 III/35c4 2.2:925 
P(+) 
Al(-) 
P 
33088 C9H23AsClN 
255.66 
H7C3 
As(+) 
C3H7 
H7C3 NH2 
Cl(-) 
Amino-tripropyl-arsonium chloride III/35c4 2.2:926 
33089 C9H23AuP2 
390.19 
(delocalized system) C9H23AuP2 III/35c4 2.2:927 
P(+) 
Au(-) 
P 
33090 C9H23BClN 
191.55 H3C 
CH3 
BH 
Cl 
N 
C9H23BClN III/35a 2.2:882 
33091 C9H23BNO4P 
251.07 OH5C2 O 
H5C2 
BH2 
H5C2 
O 
P 
O 
NH 
C2H5 
C9H23BNO4P III/35a 3.2:872 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
33092 C9H23BN2 
170.1 
CH3 C9H23BN2 III/35a 2.2:883 
NN CH3H3C 
BH3 
CH3 
33093 C9H23GaP2 
262.95 
(delocalized system) C9H23GaP2 III/35c4 2.2:928 
P(+) 
Ga(-) 
P 
33094 C9H23NO4Si 
237.37 
O 
Si 
OH2N 
C2H5 
C2H5 
OOH5C2 C9H23NO4Si III/35e 2.2.2:2875 
33095 C9H23NO6P2 
303.23 
OH3C 
CH3 
O 
H3C 
N 
P 
O 
H3C 
O 
P 
O CH3O 
H3C 
CH3 C9H23NO6P2 III/35a 3.2:873 
33096 C9H23NO6P2 
303.23 
O 
P 
O O C2H5 
C2H5H5C2 P 
OH5C2 C9H23NO6P2 III/35b 3.2:1161 
N OO 
CH3 
33097 C9H23N3O2P2 
267.25 
P N 
P 
O 
N 
CH3 
CH3 
O 
N 
H3C 
H3C 
1-tert-Butyl-N,N,N',N'-tetramethyl-2,4-
dioxo-2.5,4.5-[1,2,4]azadiphosphetidine-
2,4-diamine 
III/35a 3.2:874 
33098 C9H23O3PSSi 
270.4 
See appendix No: 33098 ((R,S)-Methylsulfanyl-trimethylsilanyl-
methyl)-phosphonic acid diethyl ester 
III/35a 3.2:875; 
III/35c4 2.2:929 
33099 C9H23O3PSeSi 
317.3 Si 
C9H23O3PSeSi III/35a 3.2:876 
SeCH3 CH3O 
P 
O CH3H3C O 
33100 C9H23O3PSeSn 
407.9 Sn 
C9H23O3PSeSn III/35a 3.2:877 
OCH3 CH3Se 
P 
O CH3H3C O 
33101 C9H23O4PSSi 
286.4 
See appendix No: 33101 ((R,S)-Methanesulfinyl-trimethylsilanyl-
methyl)-phosphonic acid diethyl ester 
III/35a 3.2:878 
33102 C9H23O5PSSi 
302.4 
See appendix No: 33102 ((R,S)-Methanesulfonyl-trimethylsilanyl-
methyl)-phosphonic acid diethyl ester 
III/35a 3.2:879 
33103 C9H24BN3O3 
233.12 
OO 
B 
O 
H2N 
H2N 
NH2 
Tris-(Aminopropyloxy)-borane III/35a 2.2:890 
33104 C9H24B2N2S2Si 
274.14 
N 
S 
N 
Si 
2-tert-Butyl-3,5-dimethyl-6-trimethylsilanyl-
[1,4,2,6,3,5]dithiadiazadiborinane 
III/35b 3.2:1162 
B B 
SH3C CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
33105 C9H24B4O8 
303.53 
H3C 
BO 
H3C O 
B O 
CH3 
O 
CH3 C9H24B4O8 III/35a 2.2:884 
O O 
H3C B B CH3 
O O 
H3C CH3 
33106 C9H24ClNOPtS 
424.89 
H3C 
CH3 
C9H24ClNOPtS III/35c4 2.2:930 
NHPtS 
ClO CH3 
H3C 
33107 C9H24ClNOPtS 
424.89 ClPtS 
C9H24ClNOPtS III/35c4 2.2:931 
O 
NHH3C CH3 
CH3 CH3 
33108 C9H24ClNOPtS 
424.89 
Cl 
NPtS 
O 
C2H5 
C2H5 
C2H5 
C9H24ClNOPtS III/35c4 2.2:932 
33109 C9H24NiO2P2 
284.93 
O CH3 C9H24NiO2P2 III/35c4 2.2:933 
OP 
Ni 
P 
33110 C9H24OPbSi 
383.56 
O 
SiPb 
C2H5 
H5C2 C2H5 C9H24OPbSi III/35c4 2.2:934 
33111 C9H24Sn2 
369.67 Sn Sn 
1,3-Bis-trimethylstannanyl-propane III/35c4 2.2:935 
33112 C9H25AlNP 
205.26 
P 
H5C2 C2H5 
NH 
Al 
C2H5 
C9H25AlNP III/35c4 2.2:936 
33113 C9H25B4MoP 
303.45 
[{Mo(h-C5H4Me)(PMe3)H}B4H8] III/35a 2.2:885 
33114 C9H25B7N2 
236.99 
See appendix No: 33114 C9H25B7N2 III/35c4 2.2:937 
33115 C9H25B9Fe 
286.44 
5-[h6-C6Me3H3]FeB9H13 III/35a 2.2:886 
33116 C9H25GaNP 
248.0 Ga 
NH 
P 
H5C2 
C2H5 
C2H5 C9H25GaNP III/35c4 2.2:938 
33117 C9H25InNP 
293.1 In 
NH 
P 
H5C2 
C2H5 
C2H5 C9H25InNP III/35c4 2.2:939 
33118 C9H26B2N2 
183.94 N N 
H3B BH3 
H3C 
H3C 
CH3 
CH3 
C9H26B2N2 III/35a 2.2:887 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
33119 C9H26GaNP2 
279.98 P 
N 
P(+) Ga(-) 
C9H26GaNP2 III/35c4 2.2:940 
33120 C9H27Au3BF4OP3 
921.94 
Au 
Au Au 
O(+) 
P 
P 
P 
F 
B(-) 
F 
F F 
C9H27Au3BF4OP3 III/35c4 2.2:941 
33121 C9H27Au3BF4O10 
P3 
1065.93 
Au 
Au Au 
O(+) 
P 
O 
O O P O 
P 
O 
O O 
F 
B(-) 
F 
F F 
CH3 
CH3H3C 
CH3 
H3C CH3 
CH3 
C9H27Au3BF4O10P3 III/35c4 2.2:942 
O 
O 
CH3CH3 
33122 C9H27Au3O10P3 
979.13 
180292-19-7 Au(+) 
P 
O 
CH3 
OH3C 
O 
H3C 
3-Oxotris(trimethyl phosphite-P)tri-
gold(1+) 
III/35e 2.2.7:4563 
Au(+) Au(+) OO 
O(2-) 
P CH3PH3C 
O 
CH3 
O CH3O 
H3C 
OH3C 
33123 C9H27Cl2P3SW 
515.04 
P 
P 
W 
S 
Cl 
C9H27Cl2P3SW III/35a 3.2:880 
P 
Cl 
33124 C9H27LiN4Si2 
254.45 NH3C 
Li 
N Si 
CH3 
C9H27LiN4Si2 III/35c4 2.2:943 
SiH3C CH3 
N N 
CH3 CH3 
33125 C9H27NPb3 
770.89 Pb Pb 
C9H27NPb3 III/35c4 2.2:944 
N 
Pb 
33126 C9H27NSi2Sn 
324.18 Sn Si 
C9H27NSi2Sn III/35c4 2.2:945 
N 
Si 
33127 C9H27NSi3 
233.57 
1586-73-8 N 
Si Si 
Si 
Silanamine, 1,1,1-trimethyl-N,N-
bis(trimethylsilyl)-
III/35c4 2.2:946 
33128 C9H27NSn3 
505.39 Sn Sn 
C9H27NSn3 III/35c4 2.2:947 
N 
Sn 
33129 C9H27N2PSi3 
278.55 P Si 
C9H27N2PSi3 III/35b 3.2:1163 
N N 
Si 
Si 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
33130 C9H27N6P 
250.32 
17239-61-1 
CH3 
N 
CH3N 
CH3 
H3C CH3 
Phosphorous acid tris(trimethylhydrazide) III/35a 3.2:881 
N P N 
H3C N N CH3 
CH3 CH3 
33131 C9H27O3PSeSi3 
377.5 Si 
C9H27O3PSeSi3 III/35a 3.2:882 
O Se 
Si P Si 
O O 
33132 C9H28B9NS 
279.69 
See appendix No: 33132 C9H28B9NS III/35c4 2.2:948 
33133 C9H28B11NNi 
327.94 
[Me4N]+ [CpNiB11H11]-III/35a 2.2:519 
33134 C9H28N4Si2 
248.52 NH3C 
CH3 
NH Si 
C9H28N4Si2 III/35c4 2.2:949 
SiH3C CH3 
N N 
CH3 CH3 
33135 C9H28O3Si4 
296.66 
1873-89-8 O 
Si 
1,1,5,5,5-Hexamethyl-3-
[(trimethylsilyl)oxy]trisiloxane; 
Tris(trimethylsiloxy)silane 
III/35e 2.2.6:4459 
SiHSi Si 
O O 
33136 C9H29B9N2 
262.64 
(t-Bu)NB9H11 
.CNt-Bu III/35a 2.2:888 
33137 C9H29B9N2 
262.64 
See appendix No: 33137 C9H29B9N2 III/35c4 2.2:950 
33138 C9H29N2PSSi3 
312.63 
63104-56-3 Si 
N 
PH 
S 
Si 
NH 
Phosphonothioic acid bis-trimethylsilanyl-
amide trimethylsilanyl-amide 
III/35a 3.2:883; 
III/35b 3.2:1164 
Si 
33139 C9H29N2PSeSi3 
359.53 
Se C9H29N2PSeSi3 III/35a 3.2:884 
Si PH Si 
N NH 
Si 
33140 C9H30B2NP2 
235.91 P(+) 
BH 
N 
BH2 
P 
C9H30B2N1P2 
+ III/35a 2.2:889 
33141 C9H30B3N3Si3 
297.04 
N 
BH 
N 
SiSi 
1,3,5-Tris-trimethylsilanyl-
[1,3,5,2,4,6]triazatriborinane 
III/35c4 2.2:951 
BH BH 
N 
Si 
33142 C9H30Cl3N6Rh 
431.64 
Rh(Me-NH-(CH2)2-NH2)3Cl3 III/35b 3.2:1165 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C9 
33143 C9H30Cl3N6Rh 
431.64 
Rh(NH2-(CH2)3-NH2)3Cl3 III/35b 3.2:1166 
33144 C9H38B5NP2 
276.41 P(+) 
BH 
N 
BH2 
P 
BH2 
BH2(-) 
BH2 
HH 
C9H30B2NP2 
+ B3H8 
-III/35a 2.2:889 
33145 C10ClCo3O9 
476.35 
Cl 
C 
O 
O C 
O 
O 
C10ClCo3O9 III/35e 2.2.7:4573 
C C 
CoCo 
CoC C 
O OC 
O 
C 
OC 
O 
33146 C10CrMnO10 
387.04 
Cr(-) 
C 
O 
C 
Mn 
O 
C OCO 
C 
O 
C 
O C10CrMnO10 
-III/35e 2.2.7:4606, 
4672 
C CC C 
O OO O 
33147 C10Cr2O10 
384.09 
Cr(-) 
C 
O 
C 
Cr(-) 
O 
C OCO 
C 
O 
C 
O C10Cr2O10 
2-III/35e 2.2.7:4607 
C CC C 
O OO O 
33148 C10CuF11 
392.63 F 
F 
F 
C10CuF11 III/35b 2.2:853 
Cu 
F CF3 
F CF3 
33149 C10HCo3O9 
441.91 
H 
C 
O 
O C 
O 
O 
C10HCo3O9 III/35e 2.2.7:4574 
C C 
CoCo 
CoC C 
O OC 
O 
C 
OC 
O 
33150 C10HF17 
444.09 
F17C8 
CH 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-
Heptadecafluoro-dec-1-yne 
III/35b 2.2:854 
33151 C10H3BFe3O10 
461.47 
92055-44-2 
See appendix No: 33151 Fe3(CO)10BH3; 
Iron, [3-(boryl-.B:.B:.H)]--
carbonylnonacarbonyl--hydrotri-, triangulo 
III/35a 2.2:891 
33152 C10H3BO10Os3 
864.63 
86727-98-2 
See appendix No: 33152 Osmium, [3-
(carbonylboryl)]nonacarbonyltri--hydrotri-, 
triangulo 
III/35a 2.2:892 
33153 C10H3F17O3 
494.1 
O 
OO 
F17C8 O 
OO 
F17C8 
+ 
(R,S)-3-Heptadecafluorooctyl-
[1,2,4]trioxolane 
III/35b 2.2:855 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33154 
316.58 
C10H4ClCrF3O3 
CF3 
(o-Chlor-trifluoromethylbenzene)-
tricarbonyl-chromium 
III/35c4 2.2:952 
Cr ClCO 
C 
O 
OC 
33155 C10H4ClCrF3O3 
316.58 
Cl (m-Chlor-trifluoromethylbenzene)-
tricarbonyl-chromium 
III/35c4 2.2:953 
Cr 
CF3 
CO 
C 
OC 
O 
33156 
316.58 
C10H4ClCrF3O3 
Cr 
CF3Cl 
CO 
(p-Chlor-trifluoromethylbenzene)-
tricarbonyl-chromium 
III/35c4 2.2:954 
O 
C 
OC 
33157 C10H4ClF5O 
270.58 
O 
Cl 
C2F5 
1-Chloro-4-pentafluorobut-1-ynyloxy-
benzene 
III/35b 2.2:856 
33158 C10H4Co2O6 
338.0 
12306-99-9 
Co 
C 
O C 
O 
C O 
C 
O 
Co 
Cobalt, hexacarbonyl(1,3-
cyclobutadiene)di-; 
Cobalt, hexacarbonyl(.4-1,3-
cyclobutadiene)di-, (Co-Co) 
III/35c4 2.2:955 
CC 
O O 
33159 C10H5BO9Os3 
850.64 
106469-32-3 
See appendix No: 33159 Osmium, (boron)nonacarbonyltri--hydro--
methylenetri-, (3Os-Os) 
III/35a 2.2:893 
33160 C10H5BrF3NO 
292.05 Ph 
O Br 5-Bromo-2-phenyl-4-trifluoromethyl-oxazole III/35b 2.2:857 
N CF3 
33161 
253.05 
C10H5BrO3 
Br 
O 5-(4-Bromo-phenyl)-furan-2,3-dione III/35e 2.2.1:1064 
55991-70-3 
O O 
33162 C10H5ClF3NO 
247.6 Ph 
O Cl 5-Chloro-2-phenyl-4-trifluoromethyl-oxazole III/35b 2.2:858 
N CF3 
N N33163 
216.63 
C10H5ClN4 
NN 
Cl 
3-Chloro-2,7,9,10-tetraaza-phenanthrene III/35b 3.2:1167 
33164 
208.6 
C10H5ClO3 
Cl 
O 5-(4-Chloro-phenyl)-furan-2,3-dione III/35e 2.2.1:1065 
58303-62-1 
O O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33165 C10H5D5O2 
167.22 D 
D 
O CH3 
4,5,6,7,8-Pentadeutero-2-methyl-chroman-
3-one 
III/35c2 2.2:738 
D O 
D D 
33166 C10H5FO3 
192.14 F 
O 5-(4-Fluoro-phenyl)-furan-2,3-dione III/35e 2.2.1:1066 
69746-38-9 
O O 
33167 C10H5F3O 
198.14 
O 4,4,4-Trifluoro-1-phenyl-but-2-yn-1-one III/35b 2.2:859 
Ph 
CF3 
33168 C10H5F4NO 
231.15 
F3C 
NH 
F 
O 
3-Fluoro-6-trifluoromethyl-1H-quinolin-2-
one 
III/35b 2.2:860 
33169 C10H5F4NO 
231.15 
F3C NH 
F 
O 
3-Fluoro-7-trifluoromethyl-1H-quinolin-2-
one 
III/35b 2.2:861 
33170 C10H5F4NO 
231.15 
NH 
CF3 
F 
O 
3-Fluoro-5-trifluoromethyl-1H-quinolin-2-
one 
III/35b 2.2:862 
33171 C10H5F6NS2 
317.27 
N 
S 
S 
F3C 
F3C 
Ph 
2-Phenyl-4,5-bis-trifluoromethyl-
[1,3,2]dithiazole 
III/35b 2.2:864 
33172 C10H5NO2 
171.15 
50743-17-4 
O 
CN 
4H-1-Benzopyran-3-carbonitrile, 4-oxo-; 
4-Oxo-4H-chromene-3-carbonitrile 
III/35e 2.2.1:1067 
O 
33173 C10H5NO5W 
402.99 
Pyridine-tungsten-pentacarbonyl III/35c4 2.2:956 
W 
C 
O 
C 
O 
C 
C 
N 
C 
O 
O 
O 
33174 C10H5NO7SU 
521.24 
O 
N 
O(-) 
O 
Uranyl 3-[(Z)-hydroxyimino]-4-oxo-3,4-
dihydro-naphthalene-1-sulfonate 
III/35c4 2.2:957 
U(2+) 
O 
SO 
O O(-) 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33175 C10H5N5O4 
259.18 
63670-11-1 
CN 
O 
N 
NH 
N 
2-(2-Nitro-phenyl)-3,5-dioxo-2,3,4,5-
tetrahydro-(1,2,4)triazine-6-carbonitrile; 
2-(2-Nitro-phenyl)-3,5-dioxo-2,3,4,5-
tetrahydro-[1,2,4]triazine-6-carbonitrile 
III/35c2 2.2:739 
NO2 O 
33176 C10H5N5S 
227.25 Ph 
N S 
N 
N(+) C(-) 
CN 
CN 
C10H5N5S III/35b 3.2:1168 
33177 C10H6B2Cl4 
289.59 
Cl 
B 
Cl 
B 
ClCl 
C10H6B2Cl4 III/35a 2.2:894 
33178 C10H6B2Cl5 
325.04 Cl 
Cl 
B B Cl 
ClCl(-) C10H6B2Cl5 
-III/35a 2.2:895 
33179 C10H6BrNO 
236.06 
O 9-Bromo-cyclohepta[b]pyridin-5-one III/35c2 2.2:740 
N 
Br 
33180 C10H6BrNO2S 
284.13 
O 
NH 
(E,Z)-5-[1-(4-Bromo-phenyl)-methylidene]-
thiazolidine-2,4-dione 
III/35c2 2.2:741 
Br 
OS 
33181 C10H6Br2OS2 
366.09 
O 
CH3 
BrBr 
SS 
1-(3,3'-Dibromo-[2,2']bithiophenyl-5-yl)ethanone 
III/35c2 2.2:742 
33182 C10H6Br3NO 
395.87 
Br 
O 
CH3 
Br Br 
N 
1-(3,4,6-Tribromo-indol-1-yl)-ethanone III/35c2 2.2:743 
33183 C10H6ClFO2S 
244.67 
S 
F 
Cl 
2-((Z)-2-Chloro-1-fluoro-vinyl)-
benzo[b]thiophene 1,1-dioxide 
III/35b 2.2:865 
O O 
33184 C10H6ClNO2 
207.61 
602-37-9 
Cl NO2 1-Chloro-8-nitro-naphthalene III/35b 3.2:1169 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33185 C10H6ClNO2 
207.61 
NO2 1-Chloro-4-nitro-naphthalene III/35e 2.2.3:3569 
605-61-8 
Cl 
33186 C10H6ClN3S 
235.69 
Cl 
NH N 
SNH 
7-Chloro-1,5-dihydro-pyrazolo[4,3-
c]quinoline-4-thione 
III/35c2 2.2:744 
33187 C10H6Cl2N2O2 
257.07 O 
Cl 
O 
4-Chloro-5-(4-chloro-phenoxy)-2H-
pyridazin-3-one 
III/35c2 2.2:745 
NH 
ClN 
33188 C10H6Co2O8 
372.02 
55975-76-3 
Co 
C 
C 
C 
O 
O 
O 
Co 
C 
C 
O 
C 
O 
OH 
OH 
O 
2-Butyne-1,4-diol, cobalt complex; 
(-.2 ,.2-2-Butyne-1,4-
diol)hexacarbonyldicobalt; 
Cobalt, (2-butyne-1,4-diol)-hexacarbonyldi-; 
Cobalt, [-[(2,3-.:2,3-.)-2-butyne-1,4-
diol]]hexacarbonyldi-, (Co-Co) 
III/35e 2.2.7:4577 
33189 C10H6Co2O8Sn 
490.71 
15708-78-8 C 
Co 
C 
C 
O 
C 
O 
O O 
C 
O 
O 
C 
Co 
C 
SnC 
O 
O 
Cobalt, 
(dimethylstannylene)bis[tetracarbonyl]-; 
Cobalt, octacarbonyl[m-
(dimethylstannylene)]di-; 
Cobalt, octacarbonyl[-
(dimethylstannylene)]di- 
III/35e 2.2.7:4575, 
4578 
33190 
297.15 
C10H6CrF3NO3 
Cr 
CF3H2N 
CO 
(p-Amino-trifluoromethylbenzene)-
tricarbonyl-chromium 
III/35c4 2.2:958 
OC 
C 
O 
33191 
313.15 
C10H6CrF3NO4 
Cr 
O 
CF3 
H2N 
CO 
(p-Amino-trifluoromethyloxybenzene)-
tricarbonyl-chromium 
III/35c4 2.2:959 
OC 
C 
O 
33192 C10H6FNO2 
191.16 
NO2 1-Fluoro-4-nitro-naphthalene III/35e 2.2.3:3570 
341-92-4 
F 
33193 C10H6F2O2 
196.15 
F 
O 
F 
O 
1-Benzofuran-2-yl-2,2-difluoro-ethanone III/35b 2.2:866 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33194 C10H6F3NO3 
245.16 
OF3C 
Ph 
F3C 
Ph 
O (R,S)-4-Phenyl-4-trifluoromethyl-
oxazolidine-2,5-dione 
III/35b 2.2:867 
O + O 
NH NH 
O O 
33195 C10H6FeO7 
294.0 
Fe 
C 
O 
C 
O 
C 
O 
CO 
O 
O 
O 
CH3 
C10H6FeO7 III/35c4 2.2:960 
33196 C10H6Fe2O6S 
365.91 
Fe Fe 
SC 
O 
CH2C 
O 
C 
O 
C 
O 
C O 
C 
O 
H2C 
C10H6Fe2O6S III/35c4 2.2:961 
33197 C10H6INO 
283.06 
NC 
I 
CH3 
O 6-Iodo-3-methyl-benzofuran-5-carbonitrile III/35c2 2.2:746 
33198 C10H6INO2 
299.06 
I NO2 1-Iodo-8-nitro-naphthalene III/35b 3.2:1170 
33199 C10H6N2O 
170.17 
NC 
O 
[2-Oxo-1,2-dihydro-indol-(3E)-ylidene]-
acetonitrile 
III/35c2 2.2:747 
NH 
33200 C10H6N2O 
170.17 
NON 
Furo[2,3-b;5,4-b']dipyridine III/35b 3.2:1171 
33201 C10H6N2O2 
186.17 N 
O 1H-Chromeno[3,2-c]pyrazol-9-one III/35c2 2.2:748 
NH 
O 
33202 C10H6N2O4 
218.17 
NO2 
NO2 
1,3-Dinitro-naphthalene III/35e 2.2.3:3571 
33203 C10H6N2O4 
218.17 
NO2 1,4-Dinitro-naphthalene III/35e 2.2.3:3572 
6921-26-2 
NO2 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33204 C10H6N2S 
186.23 N 3-Thia-1,9-diaza-cyclopenta[a]azulene III/35c2 2.2:749 
N 
S 
33205 C10H6N4 
182.18 
N N Pyrazino[2,3-b]quinoxaline III/35b 3.2:1173 
261-67-6 
N N 
33206 C10H6N4O 
198.18 
CN 2-Methoxy-pyrrolo[1,2-b]pyridazine-5,7-
dicarbonitrile 
III/35c2 2.2:750 
H3C 
O 
N 
N 
CN 
N N33207 
226.19 
C10H6N6O 
N(+) 
N 
3a,4,5,8a,9,10-Hexaaza-pyrene 3a-oxide III/35b 3.2:1174 
NN O(-) 
33208 C10H6O3 
174.15 
36122-35-7 
Ph 
OO O 
2,5-Furandione, 3-phenyl-; 
3-Phenyl-furan-2,5-dione; 
Phenylmaleic anhydride 
III/35e 2.2.1:1070 
33209 C10H6O3 
174.15 
O 5-Phenyl-furan-2,3-dione III/35e 2.2.1:1069 
55991-67-8 
Ph O O 
33210 C10H6O3 
174.15 
OOH 5-Hydroxy-[1,4]naphthoquinone; 
1,4-Naphthalenedione, 5-hydroxy-
III/35e 2.2.1:1071 
481-39-0 
O 
33211 C10H6O3 
174.15 
O 4-Oxo-4H-chromene-3-carbaldehyde; 
4-Oxo-4H-1-benzopyran-3-carboxaldehyde; 
III/35e 2.2.1:1072 
17422-74-1 O 4-Oxo-4H-chromene-3-carbaldehyde 
O 
33212 C10H6O4 
190.15 
O 
OO 
O 
[2,2']Bifuranyl-5,5'-dicarbaldehyde III/35c2 2.2:751 
33213 C10H6O4 
190.15 
COOH 2H-1-Benzopyran-3-carboxylic acid, 2-oxo-; 
2-Oxo-2H-chromene-3-carboxylic acid 
III/35e 2.2.1:1074 
531-81-7 
O O 
33214 C10H6O4 
190.15 
O 4-Oxo-4H-chromene-2-carboxylic acid III/35e 2.2.1:1075 
4940-39-0 
O COOH 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33215 C10H7BClF4MnO4 
368.36 
O 
CH3 
Cl (o-Chloro-methyloxybenzene)-tricarbonyl-
manganese(I) tetrafluoroborate 
III/35c4 2.2:962 
Mn(+)CO F 
B(-) 
F 
F F 
C 
OC 
O 
33216 C10H7BClF4MnO4 
368.36 CH3 
Cl (m-Chloro-methyloxybenzene)-tricarbonyl-
manganese(I) tetrafluoroborate 
III/35c4 2.2:963 
B(-) 
F F 
O 
C 
OC 
Mn(+)CO F F 
O 
33217 
368.36 
C10H7BClF4MnO4 
O 
CH3 
Cl 
Mn(+)CO F 
B(-) 
F 
F F 
(p-Chloro-methyoxybenzene)-tricarbonyl-
manganese(I) tetrafluoroborate 
lIII/35c4 2.2:964 
C 
OC 
O 
33218 C10H7BFe3O9 
449.5 
Fe3(CO)9BH4(CH3) III/35a 2.2:896 
33219 C10H7B5Co2S 
331.15 
2,3,6-(CpCo)2B5SH7 III/35a 2.2:897 
33220 C10H7BrN2O 
251.08 
N 
Br 4-Bromo-2-pyrimidin-4-yl-phenol III/35e 2.2.2:2877 
N 
OH 
33221 C10H7BrN2O2 
267.08 
Br 4-Bromomethyl-3-nitro-quinoline III/35c2 2.2:752 
NO2 
N 
33222 C10H7BrO 
223.07 Br 
2-(4-Bromo-phenyl)-furan III/35c2 2.2:753 
O 
33223 C10H7BrO2 
239.06 Br 
OO 
6-Bromomethyl-chromen-2-one III/35c2 2.2:754 
33224 C10H7BrO2 
239.06 
O O 
CH3 
Br 
7-Bromo-4-methyl-chromen-2-one III/35e 2.2.1:1076 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33225 C10H7Br2NO 
316.98 
Br 1-(4,6-Dibromo-indol-1-yl)-ethanone III/35c2 2.2:755 
NBr 
CH3 
O 
33226 
262.61 
C10H7ClCrO3 
CrO ClC 
(o-Chloro-methybenzene)-tricarbonyl-
chromium 
lIII/35c4 2.2:965 
C O 
C 
O 
33227 C10H7ClCrO3 
262.61 
CrO ClC 
(m-Chloro-methylbenzene)-tricarbonyl-
chromium 
III/35c4 2.2:966 
C O 
C 
O 
33228 
262.61 
C10H7ClCrO3 
CrO 
Cl 
C 
(p-Chloro-methybenzene)-tricarbonyl-
chromium 
lIII/35c4 2.2:967 
C O 
C 
O 
33229 C10H7ClF6MnO3P 
410.52 
Cl 
F 
(o-Chloro-methylbenzene)-tricarbonyl-
manganese(I) hexafluorophosphate 
III/35c4 2.2:968 
F 
Mn(+)CO F 
F 
P(-) 
F 
C 
OC F 
O 
33230 C10H7ClF6MnO3P 
410.52 
Cl (m-Chloro-methylbenzene)-tricarbonyl-
manganese(I) hexafluorophosphate 
III/35c4 2.2:969 
F 
Mn(+)CO F 
F F 
P(-) 
F 
C 
OC F 
O 
33231 
410.52 
C10H7ClF6MnO3P 
Cl 
Mn(+)CO F 
F F 
P(-) 
F 
F 
(p-Chloro-methybenzene)-tricarbonyl-
manganese(I) hexafluorophosphate 
lIII/35c4 2.2:970 
C 
OC F 
O 
33232 C10H7ClN2O 
206.63 
Cl 2-(6-Chloro-pyrimidin-4-yl)-phenol III/35e 2.2.2:2878 
N 
N 
OH 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33233 C10H7ClN2O 
206.63 
N 
Cl 2-(5-Chloro-pyrimidin-4-yl)-phenol III/35e 2.2.2:2879 
N 
OH 
33234 C10H7ClO 
178.62 
O 
Cl 
2-(4-Chloro-phenyl)-furan III/35e 2.2.2:2880 
33235 C10H7ClO2 
194.61 Cl 
O 4-(4-Chloro-phenyl)-5H-furan-2-one III/35c2 2.2:756 
O 
33236 C10H7ClO2 
194.61 
O O 
CH3 
Cl 
7-Chloro-4-methyl-chromen-2-one III/35e 2.2.1:1077 
33237 C10H7Cl2NO2 
244.07 Cl 
Cl 
O 
H3C 
3,3-Dichloro-6-methyl-1H-quinoline-2,4-
dione 
III/35c2 2.2:757 
ONH 
33238 C10H7Cl3FNOS 
314.59 
O 
F 
Cl3C N 
S 
Cl3C N 
S 
+ 
O 
F 
(R,S)-3-(3-Fluoro-phenyl)-2-trichloromethyl-
thiazolidin-4-one 
III/35c2 2.2:758 
33239 C10H7CrFO3 
246.16 
CrO FC 
(m-Fluoro-methylbenzene)-tricarbonyl-
chromium 
III/35c4 2.2:971 
C 
C O 
O 
33240 C10H7CrFO3 
246.16 
CrO 
F 
C 
(p-Fluoro-methylbenzene)-tricarbonyl-
chromium 
III/35c4 2.2:972 
C 
C O 
O 
33241 C10H7F 
146.16 
F 1-Fluoro-azulene III/35b 2.2:869 
33242 C10H7FN2 
174.17 
N 
N 
4-Fluoro-[2,2']bipyridinyl III/35b 3.2:1175 
F 
33243 C10H7FO2 
178.16 
O O 
CH3 
F 
7-Fluoro-4-methyl-chromen-2-one III/35e 2.2.1:1078 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33244 C10H7F3 
184.16 H3C CF3 
1-Methyl-4-trifluoroprop-1-ynyl-benzene III/35b 2.2:870 
33245 C10H7F3 
184.16 
CF3 
2-Trifluoromethyl-1H-indene III/35b 2.2:871 
33246 C10H7F3N2 
212.17 
NH2 8-Trifluoromethyl-quinolin-5-ylamine III/35c2 2.2:759 
N 
CF3 
33247 C10H7F3N2S 
244.24 Ph 
N 
S NH2 
CF3 
2-Phenyl-4-trifluoromethyl-thiazol-5-ylamine III/35b 2.2:872; 
III/35c2 2.2:760 
33248 C10H7F3O 
200.16 Ph CF3 
O 
(E,Z)-1,1,1-Trifluoro-4-phenyl-but-3-en-2-
one 
III/35b 2.2:874 
33249 C10H7F3O 
200.16 Ph 
CF3 
OH 
(R,S)-1,1,1-Trifluoro-4-phenyl-but-3-yn-2-ol III/35b 2.2:873 
+ 
CF3 
Ph 
OH 
33250 C10H7F3O2 
216.16 
Ph 
O O 
CF3 
4,4,4-Trifluoro-1-phenyl-butane-1,3-dione III/35e 2.2.1:1079 
33251 C10H7F3O2 
216.16 
3-(4-Trifluoromethyl-phenyl)-acrylic acid III/35e 2.2.1:1080 
COOH 
F3C 
33252 C10H7F5O2 
254.15 
F 
F 
COOH 
C2H5 
F 
F 
COOH 
C2H5+ 
(R,S)-2-Pentafluorophenyl-butyric acid III/35b 2.2:875 
F F F F 
F F 
33253 C10H7F5O2 
254.15 
O 
O 
CH3 
CH3 
F 
F 
F 
F 
F 
O 
O 
CH3 
CH3 
F 
F 
F 
F 
F 
+ 
(R,S)-2-Pentafluorophenyl-propionic acid 
methyl ester 
III/35b 2.2:876 
33254 C10H7N 
141.17 
N 
Pyrrolo[2,1,5-cd]indolizine III/35b 3.2:1176 
33255 C10H7NO 
157.17 
O 
N 
Cyclohepta[c]pyridin-5-one III/35c2 2.2:761 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33256 C10H7NOS 
189.23 
O 
Ph 
S 
CN 
(E)-3-Phenyl-3-thiocyanato-propenal III/35e 2.2.1:1081 
33257 C10H7NOS 
189.23 
O Ph 
S 
CN (Z)-3-Phenyl-3-thiocyanato-propenal III/35e 2.2.1:1082 
33258 C10H7NOS 
189.23 O 
S 
N 
C10H7NOS III/35e 2.2.5:4249 
33259 C10H7NO2 
173.17 
(E,Z)-3-(4-Cyano-phenyl)-acrylic acid III/35e 2.2.1:1083 
COOH 
NC 
33260 C10H7NO2 
173.17 
Maleimide, N-phenyl-; 
1-Phenyl-1H-pyrrole-2,5-dione; 
III/35e 2.2.1:1084 
941-69-5 NO O 1-Phenyl-pyrrole-2,5-dione; 
1H-Pyrrole-2,5-dione, 1-phenyl- 
Ph 
33261 C10H7NO2 
173.17 
N 
O 
OH 
[1,2]Naphthoquinone 2-oxime III/35e 2.2.3:3578 
33262 C10H7NO2 
173.17 
581-89-5 
NO2 Naphthalene, 2-nitro-; 
2-Nitro-naphthalene 
III/35e 2.2.3:3576 
33263 C10H7NO2 
173.17 
2636-79-5 
(E/Z) 
O 
N 
OH 
1,2-Naphthalenedione, 1-oxime; 
[1,2]Naphthoquinone 1-oxime 
III/35e 2.2.3:3577 
33264 C10H7NO2 
173.17 O 
ONH 
2-Oxo-1,2-dihydro-quinoline-3-
carbaldehyde 
III/35c2 2.2:762 
33265 C10H7NO3 
189.17 
28123-72-0 
O 
O2N 
2-(4-Nitro-phenyl)-furan III/35e 2.2.2:2881 
33266 C10H7NO3 
189.17 
O 1-Acetyl-1H-indole-2,3-dione III/35c2 2.2:763 
574-17-4 
O 
N 
O 
CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33267 C10H7NO3 
189.17 
O 2-Methoxy-quinoline-5,8-dione III/35c2 2.2:764 
N 
CH3 
O 
O 
33268 C10H7NS 
173.23 
(R,S)-1H-Isothiochromene-1-carbonitrile III/35c2 2.2:766 
S + S 
CN CN 
33269 C10H7NS 
173.23 
S Benzo(d)pyrrolo(2,1-b)thiazole; 
Benzo[d]pyrrolo[2,1-b]thiazole 
III/35c2 2.2:765 
247-87-0 
N 
33270 C10H7N3 
169.18 
NHN N 
9H-Dipyrido[2,3-b;3',2'-d]pyrrole III/35b 3.2:1178 
33271 C10H7N3O 
185.18 C(-) 
CN C10H7N3O III/35b 3.2:1179 
N(+) CN 
H3C 
O 
33272 C10H7N3OS 
217.25 
H3C 
O(-) 
4-Oxy-3-p-tolyl-[1,2,4]thiadiazole-5-
carbonitrile 
III/35c2 2.2:767 
N(+) 
CN 
SN 
33273 C10H7N3O2S 
233.25 
6-Thiocyanato-pyrrolo[2,3-b]pyridine-1-
carboxylic acid methyl ester 
III/35c2 2.2:768 
NC 
S N N 
O O 
CH3 
33274 C10H7N3O3 
217.18 
N 
NO2 4-Nitro-2-pyrimidin-4-yl-phenol III/35e 2.2.2:2882 
N 
HO 
33275 C10H7N5 
197.2 
NN 
NPh 
N 
N 5-Phenyl-[1,2,4]triazolo[1,5-a][1,3,5]triazine III/35b 3.2:1180 
33276 C10H7N5O2 
229.19 
NNO2 
CH3 
N 
2-(2-Methyl-2H-[1,2,3]triazol-4-yl)-3-nitro-
benzonitrile 
III/35c2 2.2:769 
N 
CN 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33277 C10H7NaO5 
230.15 HO 
O 
CH3 
O 
Sodium 5-hydroxy-3-methoxycarbonyl-
benzofuran-2-olate 
III/35c2 2.2:770 
Na(+)O(-)O 
33278 C10H7O3P 
206.13 O P 
O 
OH 
2-Oxo-2H-1-oxa-2.5-phospha-
acenaphthylen-2-ol 
III/35a 3.2:885 
33279 C10H8BCl3N2 
273.35 
141405-04-1 
N 
Cl 
N 
B(+) Cl(-) 
Cl (2,2'-Bipyridine-N,N')-dichloro-boron(1+) 
chloride 
III/35a 2.2:898 
33280 C10H8BrN 
222.08 
Br NH2 8-Bromo-naphthalen-1-ylamine III/35b 3.2:1181 
33281 C10H8BrN3O2S 
314.16 
S 
N 
NH 
N 
Br 
COOH 
[5-(4-Bromo-phenyl)-4H-[1,2,4]triazol-3-
ylsulfanyl]-acetic acid 
III/35c2 2.2:771 
33282 C10H8Br2N2 
315.99 
Br 
NH 
4,8-Dibromo-1,2,3,5-tetrahydro-pyrrolo[2,3-
f]indole 
III/35c2 2.2:772 
NH 
Br 
33283 C10H8Br2S2 
352.11 
BrBr 
SS 
3,3'-Bis-bromomethyl-[2,2']bithiophenyl III/35c2 2.2:773 
33284 C10H8ClFO3 
230.62 
F O 
O CH3 
(R,S)-3-(4-Chloro-phenyl)-3-fluoro-2-oxo-
propionic acid methyl ester 
III/35b 2.2:878 
Cl 
O 
+ 
F O 
O CH3 
Cl 
O 
33285 C10H8ClF3O 
236.62 
Cl 
CH2 
CF3 
OH 
Cl 
+ 
CH2 
CF3 
OH 
(R,S)-3-(4-Chloro-phenyl)-1,1,1-trifluoro-
but-3-en-2-ol 
III/35b 2.2:879 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33286 C10H8ClMnO3 
266.56 
(
O 
delocalized system)C10H8ClMnO3 III/35c4 2.2:973 
Cl 
C(-) 
Mn(+) 
C 
C 
OC 
O 
33287 C10H8ClMnO3 
266.56 
(
O 
delocalized system)C10H8ClMnO3 III/35c4 2.2:974 
Cl 
C(-) 
Mn(+) 
C 
C 
OC 
O 
33288 C10H8ClMnO3 
266.56 
(
O 
delocalized system)C10H8ClMnO3 III/35c4 2.2:975 
C(-) 
Mn(+) 
C 
C 
OCCl 
O 
33289 C10H8ClMnO4 
282.56 
(
O 
delocalized system)C10H8ClMnO4 III/35c4 2.2:976 
Cl C 
C(-) 
Mn(+) 
C 
OCH3C 
O 
(
O 
33290 C10H8ClMnO4 
282.56 Cl 
O 
C(-) 
Mn(+) C O 
C 
O 
C 
OH3C 
delocalized system)C10H8ClMnO4 III/35c4 2.2:977 
33291 C10H8ClMnO4 
282.56 
(
Cl 
C(-) 
delocalized system)C10H8ClMnO4 III/35c4 2.2:978 
O 
CH3 
(
O 
Mn(+) C O 
C 
O 
C 
33292 C10H8ClMnO4 
282.56 
O 
CH(-) 
Mn(+) C O 
CC 
Cl 
H3C O 
delocalized system)C10H8ClMnO4 III/35c4 2.2:979 
O 
33293 C10H8ClN 
177.63 
Cl NH2 8-Chloro-naphthalen-1-ylamine III/35b 3.2:1182 
33294 C10H8ClN 
177.63 
Cl 3-Chloro-2-methyl-quinoline; 
Quinoline, 3-chloro-2-methyl- 
III/35c2 2.2:774 
10222-49-8 
CH3N 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33295 C10H8ClNO 
193.63 
Cl 
N 
3-Chloro-2-methyl-2H-isoquinolin-1-one III/35b 3.2:1183 
O 
CH3 
33296 C10H8ClNO3 
225.63 Cl 
O 
N 
3-(2-Chloro-ethyl)-benzo[e][1,3]oxazine-
2,4-dione 
III/35c2 2.2:775 
OO 
33297 
205.64 
58059-47-5 
C10H8ClN3 
NH2Cl 
NN 
6-(4-Chloro-phenyl)-pyridazin-3-ylamine 
3-Amino-6-(p-chlorophenyl)pyridazine; III/35c2 2.2:777 
33298 C10H8ClN3 
205.64 
N(+) 
N 
N(-) 
H3C 
Cl 
C10H8ClN3 III/35c2 2.2:776 
33299 C10H8ClN3O2 
237.64 
N 
N 
O2N 
Cl 
5-Chloro-6-nitro-2,3-dihydro-1H-
benzo[d]pyrrolo[1,2-a]imidazole 
III/35c2 2.2:778 
33300 C10H8ClN3O3 
253.64 
Cl 
C2H5 
O 
O2N N 
N 3-Chloro-2-ethoxy-6-nitro-quinoxaline III/35c2 2.2:779 
33301 C10H8Cl2O2 
231.07 H3C 
OH 
Cl 
Cl 
O 
H3C 
OH 
Cl 
Cl 
O 
+ 
(R,S)-3,4-Dichloro-6-methyl-2H-chromen-2-
ol 
III/35c2 2.2:780 
33302 C10H8Cl3NOS 
296.6 
Ph 
Cl3C N 
Ph 
Cl3C N+ 
O 
S 
O 
S 
(R,S)-3-Phenyl-2-trichloromethyl-
thiazolidin-4-one 
III/35c2 2.2:781 
33303 
228.16 
C10H8CrO3 
Cr C O 
Methybenzene-tricarbonyl-chromium lIII/35c4 2.2:980 
33304 C10H8CrO4 
244.16 
O 
C 
O C 
CH3 MethylIII/35c4 2.2:981 
O 
Cr C O 
oxybenzene-tricarbonyl-chromium 
O 
C 
O C 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33305 C10H8CrO5S 
292.23 
CO Cr 
C 
O 
C 
O 
S 
CH2 C10H8CrO5S III/35c4 2.2:982 
C C CH3 
OO 
33306 C10H8D2N2O2 
192.21 
O 
O 
D 
H3C 
D 
N(+) 
N(-) 
1,1-Dideutero-3-diazo-1-(4-methoxy-
phenyl)-propan-2-one 
III/35e 2.2.1:1116 
33307 C10H8F 
147.17 
(delocalized system) 
C(+) F 
C10H8F III/35b 2.2:880 
33308 C10H8FN 
161.18 
F 4-Fluoro-2-methyl-quinoline; 
4-Fluoroquinaldine 
III/35b 2.2:881 
703-62-8 
N CH3 
33309 C10H8FNO 
177.18 
F 3-Fluoro-8-methyl-1H-quinolin-2-one III/35b 2.2:882 
NH O 
CH3 
33310 C10H8FNO2 
193.17 
NH 
F 
O 
O 
H3C 
3-Fluoro-6-methoxy-1H-quinolin-2-one III/35b 2.2:883 
33311 C10H8FNO2 
193.17 
NH 
F 
O 
O 
CH3 3-Fluoro-5-methoxy-1H-quinolin-2-one III/35b 2.2:884 
33312 C10H8FNO3 
209.17 
O2N 
O 
F 
(E)-1-Fluoro-4-(4-nitro-phenyl)-but-3-en-2-
one 
III/35b 2.2:885 
33313 C10H8F2 
166.17 F 1,1-Difluoro-1,3,4,5-tetrahydro-
cyclopropa[f]indene 
III/35b 2.2:886 
F 
33314 C10H8F2O 
182.17 
Ph 
H3C 
F 
F 
O 
(E)-2-Fluoro-3-phenyl-but-2-enoyl fluoride III/35b 2.2:888 
33315 C10H8F3NO2 
231.17 
Ph 
O 
NH 
O 
CF3 
2,2,2-Trifluoro-N-(2-oxo-2-phenyl-ethyl)-
acetamide 
III/35e 2.2.1:1085 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33316 C10H8F3NO2 
231.17 
O CH3 N-(2-Acetyl-phenyl)-2,2,2-trifluoro-
acetamide 
III/35e 2.2.1:1086 
NH CF3 
O 
33317 C10H8F3NO2 
231.17 
NH CF3 N-(4-Acetyl-phenyl)-2,2,2-trifluoro-
acetamide 
III/35e 2.2.1:1087 
OH3C 
O 
33318 C10H8F3NO3 
247.17 F 
F 
COOH 
F 
F 
COOH 
(E)-(R,S)-2-Amino-3-(2,6-difluoro-3-
hydroxy-phenyl)-4-fluoro-but-3-enoic acid 
III/35b 2.2:890 
+ 
F 
NH2 F 
NH2 
OH OH 
33319 C10H8F4 
204.16 
CH3 
CF3 
((Z)-2,3,3,3-Tetrafluoro-1-methyl-propenyl)-
benzene 
III/35b 2.2:891 
Ph 
F 
33320 C10H8F4 
204.16 
Ph 
CF3 ((E)-2,3,3,3-Tetrafluoro-1-methyl-propenyl)-
benzene 
III/35b 2.2:892 
F 
CH3 
33321 C10H8F5NO 
253.17 
NHF5C2 
O 
Ph 
N-Benzyl-2,2,3,3,3-pentafluoro-
propionamide 
III/35b 2.2:893 
33322 C10H8F6MnO4P 
392.07 O 
F 
CH3 Methyloxybenzene-tricarbonyl-
manganese(I) hexafluorophosphate 
III/35c4 2.2:983 
P(-)FF 
FF 
F 
Mn(+) C O 
C 
C 
O 
O 
33323 C10H8F6N2 
270.17 
CF3 2,4-Bis-trifluoromethyl-5,6,7,8-tetrahydro-
quinazoline 
III/35b 2.2:894 
N 
N CF3 
33324 C10H8F6N4O4 
362.19 
NH 
NHN 
N 
O 
O 
F3C 
HO 
F3C 
OH 
NH 
NHN 
N 
O 
O 
F3C 
HO 
F3C 
OH 
+ 
(R,S)-7-Hydroxy-8-(2-hydroxy-ethyl)-6,7-
bis-trifluoromethyl-7,8-dihydro-1H-pteridine-
2,4-dione 
III/35b 2.2:895 
33325 C10H8F6OS 
290.23 Ph 
SF3C 
F3C O CH3 
(2,2,2-Trifluoro-1-methoxy-1-
trifluoromethyl-ethylsulfanyl)-benzene 
III/35b 2.2:896 
33326 C10H8F6O3 
290.16 
O C2H5 
OF3C 
F3C CH3O 
2-Methyl-4,5-bis-trifluoromethyl-furan-3-
carboxylic acid ethyl ester 
III/35c2 2.2:782 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33327 C10H8F6O3S 
322.22 S 
CF3OO Toluene-4-sulfonic acid 2,2,2-trifluoro-1-
trifluoromethyl-ethyl ester 
III/35b 2.2:898 
O CF3 
H3C 
33328 C10H8F10N2O2 
378.17 
O 2,2,3,3,3-Pentafluoro-1-[4-(2,2,3,3,3-
pentafluoro-propionyl)-piperazin-1-yl]-
III/35b 2.2:899 
N C2F5 propan-1-one 
NF5C2 
O 
33329 C10H8FeO3 
232.01 C 
O C10H8FeO3 III/35c4 2.2:984 
Fe 
C 
C O 
O 
33330 C10H8FeO6 
280.01 
FeCO 
H3C 
OO 
O 
C10H8FeO6 III/35c4 2.2:985 
OC 
C 
O 
33331 C10H8FeO8 
312.01 O 
CH3 
O 
C10H8FeO8 III/35c4 2.2:986 
O O 
C 
OH3C 
Fe 
C 
O 
CO 
C 
O 
33332 
312.01 
C10H8FeO8 
O 
H3C O C10H8FeO8 III/35c4 2.2:987 
H3C 
O 
O 
Fe 
C 
O 
C 
CO 
O 
OC 
33333 C10H8Fe2O6S 
367.92 CH2C 
O 
O O 
C C 
C10H8Fe2O6S III/35c4 2.2:988 
Fe Fe 
S 
C2H5 
C 
O 
C O 
C 
O 
33334 C10H8IN 
269.08 
I NH2 8-Iodo-naphthalen-1-ylamine III/35b 3.2:1184 
33335 
156.18 
C10H8N2 2,2'-Bipyridine; 
[2,2']Bipyridinyl 
III/35b 3.2:1185 
366-18-7 
NN 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33336 C10H8N2 
156.18 
3438-48-0 
N 
N 
Ph 4-Phenyl-pyrimidine; 
Pyrimidine, 4-phenyl- 
III/35b 3.2:1186; 
III/35c2 2.2:783 
33337 C10H8N2 
156.18 
NHN 1,5-Dihydro-benzo[cd]indazole III/35c2 2.2:784 
33338 C10H8N2O 
172.18 
10364-94-0 NN 
Ph 
O 
1-Benzoylimidazole; 
N-Benzoylimidazole; 
Imidazol-1-yl-phenyl-methanone; 
1H-Imidazole, 1-benzoyl- 
III/35e 2.2.1:1088 
33339 C10H8N2O 
172.18 
N 
N 
2-Pyrimidin-4-yl-phenol III/35e 2.2.2:2883 
HO 
33340 C10H8N2O 
172.18 
N 2-(2-Hydroxyphenyl)pyrimidine; 
2-Pyrimidin-2-yl-phenol 
III/35e 2.2.2:2884 
64435-20-7 
N 
HO 
33341 C10H8N2O 
172.18 H3C 
CN 
NH2 
2-Amino-5-methyl-benzofuran-3-carbonitrile III/35c2 2.2:785 
O 
33342 C10H8N2O2 
188.18 O 
N 
N 
Pyrazole-1-carboxylic acid phenyl ester III/35c2 2.2:786 
Ph 
O 
33343 C10H8N2O2 
188.18 
NO2 1-Naphthalenamine, 4-nitro-; 
4-Nitro-naphthalen-1-ylamine 
III/35e 2.2.3:3579 
776-34-1 
NH2 
33344 C10H8N2O2 
188.18 
7-Methyl-8-nitro-quinoline; 
Quinoline, 7-methyl-8-nitro- 
III/35e 2.2.3:3581 
7471-63-8 
NH3C 
NO2 
33345 C10H8N2O2 
188.18 
O 
H 
C10H8N2O2 III/35b 3.2:1187 
N 
N 
H 
O 
33346 C10H8N2O3 
204.18 CH3 
O 6-Methyl-5-oxo-5,6-dihydro-
[1,6]naphthyridine-8-carboxylic acid 
III/35c2 2.2:787 
N 
N 
COOH 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33347 C10H8N2O4 
220.18 NO2 
OH 4-Hydroxy-1-methyl-3-nitro-1H-quinolin-2-
one 
III/35c2 2.2:788 
ON 
CH3 
33348 C10H8N2O4 
220.18 
COOH (2,3-Dioxo-3,4-dihydro-2H-quinoxalin-1-yl)-
acetic acid 
III/35c2 2.2:789 
ON 
ONH 
33349 C10H8N3P 
201.16 PH 
CN 2-(Amino-phenylphosphanyl-methylene)-
malononitrile 
III/35a 3.2:886 
Ph CN 
NH2 
33350 C10H8N4 
184.2 
NH2 
N 
3H-Imidazo[4,5-f]quinolin-2-ylamine III/35c2 2.2:790 
NH 
N 
33351 C10H8N4O 
200.2 
N 
N 
N 
N 
O C10H8N4O III/35e 2.2.3:3580 
33352 C10H8N4O4 
248.19 NH 
CN 
O 
Cyano-[(4-nitro-phenyl)-hydrazono]-acetic 
acid methyl ester 
III/35b 3.2:1188 
N CH3 
O 
O2N 
33353 C10H8O 
144.17 
17113-33-6 PhO 
2-Phenyl-furan III/35e 2.2.2:2885 
33354 C10H8O 
144.17 
13261-70-6 
O 
CH2 
2-Methylene-indan-1-one III/35e 2.2.1:1089 
33355 C10H8O2 
160.17 
O 
Ph 4-Phenyl-5H-furan-2-one III/35c2 2.2:792 
O 
33356 C10H8O2 
160.17 
O 3-Methoxy-inden-1-one III/35e 2.2.1:1090 
42393-04-4 
CH3O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33357 C10H8O2 
160.17 
O 3-Eth-(Z)-ylidene-3H-isobenzofuran-1-one III/35e 2.2.1:1091 
O 
CH3 
33358 C10H8O2 
160.17 
607-71-6 
CH3 2H-1-Benzopyran-2-one, 4-methyl-; 
4-Methyl-chromen-2-one; 
4-Methylcoumarine 
III/35c2 2.2:791; 
III/35e 2.2.1:1092 
OO 
33359 C10H8O2 
160.17 
O O 2H-1-Benzopyran-2-one, 6-methyl-; 
Coumarin, 6-methyl-; 
III/35e 2.2.1:1093 
92-48-8 6-MC; 
H3C 6-Methyl-chromen-2-one 
33360 C10H8O2 
160.17 
2445-83-2 
O OH3C 2H-1-Benzopyran-2-one, 7-methyl-; 
7-Methyl-chromen-2-one; 
7-methylcoumarin 
III/35e 2.2.1:1094 
33361 C10H8O2 
160.17 
O 4-Methyl-isochromen-1-one III/35e 2.2.1:1095 
O 
CH3 
33362 C10H8O2S 
192.23 
PhS 
O 
3-Phenylsulfanyl-5H-furan-2-one III/35c2 2.2:794 
O 
33363 C10H8O2S 
192.23 
HS O 
CH3 
O 
7-Mercapto-4-methyl-chromen-2-one III/35c2 2.2:793 
33364 C10H8O3 
176.17 
531-59-9 H3C 
O O O 
2H-1-Benzopyran-2-one, 7-methoxy-; 
Herniarin; 
7-Methoxy-chromen-2-one; 
7-Methoxycoumarin 
III/35c2 2.2:795; 
III/35e 2.2.1:1096 
33365 C10H8O3 
176.17 
O 
H3C 
O 
O 
7-Methoxy-chromen-4-one III/35e 2.2.1:1097 
33366 C10H8O3S 
208.23 O 
O 
O 2-Methyl-1,1-dioxo-1H-1.6-
cyclohepta[b]thiophen-8-one 
III/35c2 2.2:796 
S 
CH3 
33367 C10H8O4 
192.17 
O 
O 
O 
O 
H5C2 4-Ethoxy-isobenzofuran-1,3-dione III/35e 2.2.1:1098 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33368 C10H8O4 
192.17 
O 8,9-Dihydro-[1,3]dioxolo[4,5-f]isochromen-
6-one 
III/35c2 2.2:797 
O 
O 
O 
O 
33369 C10H8O5SW 
424.07 
C W 
C 
O 
C 
O 
S 
CH2 C10H8O5SW III/35c4 2.2:989 
C C CH3 
OO 
33370 C10H8O6W 
408.01 
O 
C 
O 
C 
CH3 C10H8O6W III/35c4 2.2:990 
O C W 
C C O CH3 
O O 
33371 C10H9BCl2Fe 
266.74 (-) 
(-) 
Fe(2+) 
B 
Cl 
Cl 
C10H9BCl2Fe III/35a 2.2:899 
33372 C10H9BFe2O6S2 
411.81 
Fe 
SS 
B 
C4H9 
Fe C OC 
C10H9BFe2O6S2 III/35a 2.2:900 
O 
O 
CC 
C OC 
OO 
33373 C10H9BrO3 
257.08 O 
O (4-Bromo-phenyl)-oxo-acetic acid ethyl 
ester 
III/35e 2.2.1:1099 
C2H5 
O 
Br 
Cl33374 C10H9ClFNO2 
229.63 
NH O (Z)-N-(3-Chloro-phenyl)-2-fluoro-3-
methoxy-acrylamide 
III/35b 2.2:900 
F 
O 
H3C 
33375 C10H9ClF2O 
218.63 Ph 
HO Cl 
F 
F 
Ph 
HO 
+ 
F 
Cl 
F (R,S)-3-Chloro-4,4-difluoro-1-phenyl-but-3-
en-2-ol 
III/35b 2.2:699 
33376 C10H9ClF2O 
218.63 
Cl 
OH 
F F 
CH2 
Cl 
OH 
F F 
+ CH2 
(R,S)-1-(4-Chloro-phenyl)-2,2-difluoro-but-
3-en-1-ol 
III/35b 2.2:901 
33377 C10H9ClN2O 
208.64 C2H5 
O 
ClN 
N 2-Chloro-3-ethoxy-quinoxaline III/35c2 2.2:799 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33378 C10H9ClN2O 
208.64 
O(-) 
N(+) 
N 
Cl 
6-Chloro-2,3-dihydro-1H-
benzo[d]pyrrolo[1,2-a]imidazole 4-oxide 
III/35c2 2.2:798 
33379 C10H9ClN2O3 
240.64 
O 
C2H5O 
N 
Cl 5-Chloro-2H-benzo[1,2,4]oxadiazine-3-
carboxylic acid ethyl ester 
III/35c2 2.2:800 
NH 
O 
33380 C10H9ClN4 
220.66 
Cl 
N 
N-(4-Chloro-phthalazin-1-yl)-N-methyl-N'-
methylene-hydrazine 
III/35c2 2.2:801 
N 
NH3C 
N 
CH2 
33381 C10H9ClO 
180.63 
O 
Cl 
CH2 
O 
Cl 
CH2 
+ 
(R,S)-2-(4-Chloro-phenyl)-2-vinyl-oxirane III/35e 2.2.2:2886 
33382 C10H9ClO2 
196.63 
(E/Z) 
O 
3-(4-Chloro-phenyl)-acrylic acid methyl 
ester 
III/35e 2.2.1:1100 
OCl 
CH3 
33383 C10H9ClO3 
212.63 O 
O (4-Chloro-phenyl)-oxo-acetic acid ethyl 
ester 
III/35e 2.2.1:1101 
C2H5 
O 
Cl 
33384 C10H9Cl2F2NS 
284.15 
N 
Cl Cl 
CH2 
1-(1,1-Dichloro-2,2-difluoro-pent-4-enyl)-
1H-pyridine-2-thione 
III/35b 2.2:902 
F F 
S 
33385 C10H9Cl2NO 
230.09 Cl 
Cl 
O 
Cl 
Cl 
O+ 
(R,S)-3,5-Dichloro-1,3-dimethyl-1,3-
dihydro-indol-2-one 
III/35c2 2.2:802 
N N 
CH3 CH3 
33386 C10H9Cl2N2O2PS 
323.13 
S 
N P 
Cl C10H9Cl2N2O2PS III/35a 3.2:887 
N Cl 
O 
CH3 
O 
33387 C10H9Cl5FeN3P3 
497.23 (-) (-)P 
N 
P 
ClCl 
Cl Fe(2+) 
C10H9Cl5FeN3P3 III/35a 3.2:888 
NN 
P 
Cl Cl 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33388 C10H9Cl5N3P3Ru 
542.46 (-) (-)P 
N 
P 
ClCl 
Cl Ru(2+) 
C10H9Cl5N3P3Ru III/35a 3.2:889 
NN 
P 
Cl Cl 
33389 C10H9CrNO5 
275.18 
Cr(-) 
N(+) 
CH3 O 
C 
C O 
O 
C 
H2C 
C10H9CrNO5 III/35c4 2.2:991 
C 
C 
O 
O 
33390 C10H9CrNO5 
275.18 
Cr(-) 
NH(+) 
O 
C 
C O 
O 
C 
H2C 
C10H9CrNO5 III/35c4 2.2:992 
H3C C 
C 
O 
O 
33391 C10H9CrNO5 
275.18 N 
CrCO 
C 
O 
C 
O C10H9CrNO5 III/35c4 2.2:995 
C C CH3 
O O 
33392 C10H9CrNO5 
275.18 N 
CrCO 
C 
O 
C 
OH3C C10H9CrNO5 III/35c4 2.2:993 
C C 
O O 
33393 C10H9CrNO5 
275.18 
O O C10H9CrNO5 III/35c4 2.2:994 
NC C 
CrCO 
C C 
O O 
33394 C10H9CrNO5S 
307.24 
S 
N 
CrCO 
C 
O 
C 
O C10H9CrNO5S III/35c4 2.2:996, 
997 
C C CH3 
O O 
33395 C10H9F 
148.18 
CH2 
F 
Ph ((E)-3-Fluoro-buta-1,3-dienyl)-benzene III/35b 2.2:903 
33396 C10H9FN2O 
192.19 NN 
CH3 4-Fluoro-2-methyl-5-phenyl-2H-pyrazol-3-ol III/35b 2.2:904; 
III/35c2 2.2:803 
Ph OH 
F 
33397 C10H9FN2O4 
240.19 NH 
F 
O 
CH3 
O 
O2N 
(Z)-2-Fluoro-3-methoxy-N-(3-nitro-phenyl)-
acrylamide 
III/35b 2.2:905 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33398 C10H9FO 
164.18 
F 
CH2 F 
CH2 
+ 
O O (R,S)-2-(4-Fluoro-phenyl)-2-vinyl-oxirane III/35e 2.2.2:2887 
33399 C10H9FO2 
180.18 
Ph 
F 
O 
O 
CH3 
(E)-3-Fluoro-3-phenyl-acrylic acid methyl 
ester 
III/35b 2.2:906 
33400 C10H9FO2 
180.18 
Ph 
O 
O 
F 
CH3 
(Z)-3-Fluoro-3-phenyl-acrylic acid methyl 
ester 
III/35b 2.2:907 
33401 C10H9FO2 
180.18 
F O 
CH3 
O 
(E,Z)-3-(4-Fluoro-phenyl)-acrylic acid 
methyl ester 
III/35e 2.2.1:1102 
33402 C10H9FO3 
196.18 
Ph 
O 
F 
O 
H3C 
O 
(Z)-2-Fluoro-3-methoxy-acrylic acid phenyl 
ester 
III/35b 2.2:909 
33403 C10H9F2NO2 
213.18 
O 
F 
O 
H3C 
NH 
F (Z)-2-Fluoro-N-(2-fluoro-phenyl)-3-methoxy-
acrylamide 
III/35b 2.2:910 
33404 C10H9F2NO3 
229.18 
OH 
F 
F 
NH2 
COOH 
OH 
F 
F 
NH2 
COOH 
+ 
(E)-(R,S)-2-Amino-4-fluoro-3-(2-fluoro-3-
hydroxy-phenyl)-but-3-enoic acid 
III/35b 2.2:911 
33405 C10H9F2NO3 
229.18 
OH 
F 
NH2 
COOH 
F 
OH 
F 
NH2 
COOH 
F 
+ 
(E)-(R,S)-2-Amino-4-fluoro-3-(2-fluoro-5-
hydroxy-phenyl)-but-3-enoic acid 
III/35b 2.2:912 
33406 C10H9F2NO3 
229.18 
F 
OH 
F 
NH2 
COOH 
F 
OH 
F 
NH2 
COOH 
+ 
(Z)-(R,S)-2-Amino-4-fluoro-3-(4-fluoro-3-
hydroxy-phenyl)-but-3-enoic acid 
III/35b 2.2:913 
33407 C10H9F3N2 
214.19 
Ph 
N CF3 
NC [Phenyl-(2,2,2-trifluoro-ethyl)-amino]-
acetonitrile 
III/35b 2.2:916 
33408 C10H9F3N2 
214.19 N CF3 
CH3 
NC 
4-[Methyl-(2,2,2-trifluoro-ethyl)-amino]-
benzonitrile 
III/35b 2.2:918 
33409 C10H9F3O 
202.17 
F3C 
O 
CH3 
1-Methoxy-4-((E)-3,3,3-trifluoro-propenyl)-
benzene 
III/35b 2.2:915, 
923 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33410 C10H9F3O 
202.17 
OH (E)-(R,S)-1,1,1-Trifluoro-4-phenyl-but-3-en-
2-ol 
III/35b 2.2:919 
Ph CF3 
+ 
OH 
Ph CF3 
33411 C10H9F3O 
202.17 
Ph OH 
CF3 
Ph OH 
CF3 
+ 
(Z)-(R,S)-1,1,1-Trifluoro-4-phenyl-but-3-en-
2-ol 
III/35b 2.2:920 
33412 C10H9F3O 
202.17 
Ph 
FC 
FB 
FA 
HO 
Ph 
FC 
FB 
FA 
HO 
+ 
(R,S)-3,4,4-Trifluoro-2-phenyl-but-3-en-2-ol III/35b 2.2:921 
33413 C10H9F3O 
202.17 
Ph 
CH2 
CF3 
OH 
Ph 
CH2 
CF3 
OH 
+ 
(R,S)-1,1,1-Trifluoro-3-phenyl-but-3-en-2-ol III/35b 2.2:922 
33414 C10H9F3O2 
218.17 
O 4-Methyl-benzoic acid 2,2,2-trifluoro-ethyl 
ester 
III/35e 2.2.1:1103 
O CF3 
H3C 
33415 C10H9F3O2 
218.17 
O Acetic acid 4-trifluoromethyl-benzyl ester III/35e 2.2.2:2888 
O CH3 
F3C 
33416 C10H9F3O2 
218.17 
O OH (R,S)-4,4,4-Trifluoro-3-hydroxy-1-phenyl-
butan-1-one 
III/35b 2.2:924 
Ph CF3 
+ 
O OH 
Ph CF3 
33417 C10H9F3O2Se 
297.13 Ph 
Se CF3 
O 
O 
CH3 
Ph 
Se CF3 
O 
O 
CH3+ 
Acetic acid (R,S)-2,2,2-trifluoro-1-
phenylselanyl-ethyl ester 
III/35b 2.2:927 
33418 C10H9F3O3 
234.17 
O CF3 
O 
O 
CH3 3-Methoxy-4-(2,2,2-trifluoro-ethoxy)-
benzaldehyde 
III/35b 2.2:929 
33419 C10H9F3O3 
234.17 
O 
O 
CH3 
O 
CF3 
4-Methoxy-3-(2,2,2-trifluoro-ethoxy)-
benzaldehyde 
III/35b 2.2:930 
33420 C10H9F3O3 
234.17 
O 4-Methoxy-benzoic acid 2,2,2-trifluoro-ethyl 
ester 
III/35e 2.2.1:1104 
O CF3 
O 
H3C 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33421 C10H9F6NO 
273.18 Ph 
F3C 
O 
CF3 
CH3 
NH Phenyl-(2,2,2-trifluoro-1-methoxy-1-
trifluoromethyl-ethyl)-amine 
III/35b 2.2:931 
33422 C10H9F6O2P 
306.14 
CF3P 
Ph 
OF3C O C10H9F6O2P III/35b 2.2:932 
33423 C10H9F6PS 
306.21 
F 
F P 
S F C10H9F6PS III/35a 3.2:890 
F F 
F 
33424 C10H9F7N2 
290.18 
C3F7 3-Heptafluoropropyl-4,5,6,7-tetrahydro-1H-
indazole 
III/35c2 2.2:804 
N 
NH 
33425 C10H9FeO3 
233.02 (-) 
(unknown relative positions) 
Fe(2+) C O 
C10H9FeO3 
+ III/35e 2.2.7:4630 
C 
O C 
O 
33426 C10H9MnO4 
248.11 
(delocalized system) 
O 
C(-) 
CH3 
C10H9MnO4 III/35c4 2.2:998 
O 
Mn(+) C O 
C 
O 
C 
33427 C10H9MnO4 
248.11 
(delocalized system) 
CH(-) 
Mn(+) C O 
O 
H3C 
C10H9MnO4 III/35c4 2.2:999 
C 
O C 
O 
33428 C10H9MoNO5 
319.12 N 
C10H9MoNO5 III/35b 3.2:1189 
C 
O 
CO 
C 
O 
C 
C O 
Mo 
C 
O 
33429 C10H9NO 
159.19 
O 
CH3N 
2-Methyl-3-methylene-2,3-dihydro-isoindol-
1-one 
III/35c2 2.2:807 
CH2 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33430 C10H9NO 
159.19 
CH3 
N 
O 
1-Methyl-1a,6a-dihydro-1H-1-aza-
cyclopropa[a]inden-6-one 
III/35c2 2.2:806 
33431 C10H9NO 
159.19 
4594-71-2 N 
N-Methyl-1-oxo-1,2-dihydroisoquinoleine; 
2-Methyl-2H-isoquinolin-1-one; 
2-Methylisoquinolin-1(2H)-one 
III/35b 3.2:1194 
CH3 
O 
33432 C10H9NO 
159.19 
NH CH3 2-Methyl-1H-quinolin-4-one III/35b 3.2:1195 
O 
33433 C10H9NO 
159.19 
O 1-Methyl-1H-cyclohepta[b]pyrrol-4-one III/35c2 2.2:805 
N 
CH3 
33434 C10H9NO 
159.19 
O 1-Methyl-1H-quinolin-4-one III/35c2 2.2:809 
N 
CH3 
33435 C10H9NO 
159.19 
606-43-9 
CH3 
ON 
Carbostyril, 1-methyl-; 
1-Methyl-1H-quinolin-2-one; 
2(1H)-Quinolinone, 1-methyl-
III/35e 2.2.1:1105 
33436 C10H9NO 
159.19 
O 4-Methyl-2H-isoquinolin-1-one III/35e 2.2.1:1106 
NH 
CH3 
33437 C10H9NO 
159.19 
4053-40-1 
CH3 Lepidine, 1-oxide; 
4-Methylquinoline 1-oxide; 
4-Methylquinoline N-oxide; 
Quinoline, 4-methyl-, 1-oxide 
III/35e 2.2.3:3583 
N(+) 
O(-) 
33438 C10H9NO 
159.19 
H3C 6-Methyl-quinoline 1-oxide; 
Quinoline, 6-methyl-, 1-oxide 
III/35e 2.2.3:3584 
4053-42-3 
N(+) 
O(-) 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33439 C10H9NO 
159.19 
N(+) 
CH3 O(-) 
8-Methyl-quinoline 1-oxide III/35e 2.2.3:3585 
33440 C10H9NO 
159.19 
2-Methyl-quinoline 1-oxide III/35e 2.2.3:3582 
1076-28-4 
N(+) CH3 
O(-) 
33441 C10H9NO 
159.19 
O 
NH 
2,3-Dihydro-benzo[d]azepin-1-one III/35c2 2.2:808 
33442 C10H9NOS 
191.25 
S 
O 
NC 
C2H5 
4-Cyano-thiobenzoic acid S-ethyl ester III/35e 2.2.1:1107 
33443 C10H9NO2 
175.18 
83-25-0 
Ph 
NO O 
1-Phenyl-2,5-pyrrolidinedione; 
1-Phenyl-pyrrolidine-2,5-dione; 
2,5-Pyrrolidinedione, 1-phenyl-; 
Succinimide, N-phenyl- 
III/35e 2.2.1:1108 
33444 C10H9NO2 
175.18 
1011-65-0 
O 
O 
H3C 
NH 
Indole-5-carboxylic acid methyl ester; 
1H-Indole-5-carboxylic acid methyl ester 
III/35b 3.2:1197 
33445 C10H9NO2 
175.18 
(delocalized system) 
CH(+) 
N(+) 
OHHO 
C10H9NO2 III/35b 3.2:1198 
33446 C10H9NO2 
175.18 CH3 
OH 4-Hydroxy-3-methyl-1H-quinolin-2-one III/35c2 2.2:810 
ONH 
33447 C10H9NO2 
175.18 
CH3 
O 
O 
NH 
4-Methoxy-1H-quinolin-2-one III/35c2 2.2:811 
33448 C10H9NO2 
175.18 
26093-31-2 
H2N O O 7-Amino-4-methyl-chromen-2-one; 
2H-1-Benzopyran-2-one, 7-amino-4-
methyl-; 
III/35e 2.2.1:1109 
Coumarin, 7-amino-4-methyl-; 
CH3 
4-Methyl-7-aminocoumarin 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33449 C10H9NO2S 
207.25 
C2H5 
NO2 2-Ethyl-3-nitro-benzo[b]thiophene III/35c2 2.2:812 
S 
33450 C10H9NO2S 
207.25 
S 6-Acetyl-4H-benzo[1,4]thiazin-3-one III/35c2 2.2:813 
H3C 
ONH 
O 
33451 C10H9NO3 
191.18 
O 
O 
C2H5 
4-Isocyanato-benzoic acid ethyl ester III/35e 2.2.1:1110 
O 
C 
N 
33452 C10H9NO3 
191.18 
H3C 
O 
O 
O 
CH3 
NH 
6-Methoxy-3-methyl-1H-indole-4,7-dione III/35c2 2.2:815 
33453 C10H9NO3 
191.18 
O 
C2H5 
O 
NH 
O 
6-Propionyl-3H-benzooxazol-2-one III/35c2 2.2:817 
33454 C10H9NO3 
191.18 
CH3OH 5,8-Dihydroxy-4-methyl-1H-quinolin-2-one III/35c2 2.2:816 
ONH 
OH 
33455 C10H9NO3 
191.18 C2H5 
O 
O 
O 
N 
3-Ethyl-benzo[e][1,3]oxazine-2,4-dione III/35c2 2.2:814 
33456 C10H9NO4 
207.18 
(E/Z) 
O2N O 
O 
CH3 
3-(4-Nitro-phenyl)-acrylic acid methyl ester III/35e 2.2.1:1111 
33457 C10H9NO5 
223.18 
O 
O 
(4-Nitro-phenyl)-oxo-acetic acid ethyl ester III/35e 2.2.1:1112 
C2H5 
O 
O2N 
33458 C10H9NO5W 
407.02 
C OW(-) 
C 
O 
C 
O 
NH(+) 
H2C C10H9NO5W III/35c4 2.2:1000 
CCH3C 
O O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33459 
407.02 
C10H9NO5W 
OO 
H2C C10H9NO5W III/35c4 2.2:1001 
CCHN(+) 
C OW(-) 
CCH3C 
O O 
33460 C10H9NS 
175.25 
H2C 
CH3 
3-Isopropenyl-benzo[d]isothiazole III/35c2 2.2:818 
N 
S 
33461 C10H9N3 
171.2 
14966-91-7 
NH2Ph 
NN 
3-Amino-6-phenylpyridazine; 
6-Phenyl-pyridazin-3-ylamine 
III/35c2 2.2:820 
33462 C10H9N3 
171.2 
N(+) 
N 
N(-) 
H3C C10H9N3 III/35c2 2.2:819 
33463 C10H9N3O2 
203.2 
N 1-Benzyl-5-nitro-1H-imidazole III/35c2 2.2:822 
O2N N 
Ph 
33464 C10H9N3O2 
203.2 
CH3 
NH2 
NO2 
N 
7-Methyl-5-nitro-quinolin-6-ylamine III/35c2 2.2:821 
33465 C10H9N3O4S 
267.26 
OH3C 
CH3O 
O2N N 
H3C 
O2N 
+ 
N 
O 
CH3O 
N 
N 
(R,S)-2-(5-Nitro-benzo[1,2,3]thiadiazol-4-
yl)-propionic acid methyl ester 
III/35c2 2.2:823 
S S 
33466 C10H9N3S 
203.26 N 
N 
N 
N+ 
(R,S)-6,10b-Dihydro-1H-pyrazolo[1,5-c] 
quinazoline-5-thione 
III/35c2 2.2:824 
SNH SNH 
33467 C10H10BF2N2 
207.01 
NN(+) 
B 
F F C10H10BF2N2 
+ III/35a 2.2:901 
33468 
155.0 
C10H10BN 
NB 
C10H10BN III/35a 2.2:902 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33469 C10H10BrNO4 
288.1 
O CH3 
O 6-Bromomethyl-pyridine-2,4-dicarboxylic 
acid dimethyl ester 
III/35c2 2.2:825 
BrO 
H3C N 
O 
33470 C10H10BrNS 
256.16 Br(-) 
PhN(+) 
S 
2-Benzyl-isothiazol-2-ium bromide III/35c2 2.2:826 
33471 C10H10ClF2N 
217.64 
(E/Z) 
F 
2-Chloro-2-fluoro-N-(1-phenyl-ethyl)-
acetimidoyl fluoride 
III/35b 2.2:934 
Cl 
N Ph 
F 
CH3 
33472 C10H10ClF15N3O5 
P3 
665.55 
OO P 
N 
P 
N 
P 
O O 
CF3 
CF3F3C 
F3C 
2-Chloro-2,4,4,6,6-pentakis-(2,2,2-trifluoro-
ethoxy)-2.5,4.5,6.5-
[1,3,5,2,4,6]triazatriphosphinine 
III/35a 3.2:891 
ClO N 
F3C 
33473 C10H10ClN 
179.65 C 
CH3 
CH3 
N 
Cl 
(4-Chloro-phenyl)-(2-methyl-
propenylidene)-amine 
III/35b 3.2:1199 
33474 C10H10ClNO2 
211.65 Ph 
Cl 
O 
NO 
Ph 
Cl 
O 
NO+ 
(R,S)-5-Chloromethyl-3-phenyl-oxazolidin-
2-one 
III/35c2 2.2:827 
33475 C10H10Cl2N2O 
245.1 
O 
Cl NH 
O 
Cl NH 
+ 
(R,S)-7,8-Dichloro-4-methyl-1,3,4,5-
tetrahydro-benzo[b][1,4]diazepin-2-one 
III/35c2 2.2:828 
CH3 
Cl NH CH3 
Cl NH 
33476 C10H10Cl2N4 
257.12 
(E/Z) 
CH3 
(E,Z)-N'-(3,6-Dichloro-5-cyano-4-methyl-
pyridin-2-yl)-N,N-dimethyl-formamidine 
III/35c2 2.2:829 
CH3NC Cl 
N 
CH3 
NCl N 
33477 C10H10Cl2Ti 
248.96 
(-) (-) 
Ti(2+) 
Cl Cl Dicyclopentadienyl-titanium-dichloride III/35c4 2.2:1002 
33478 C10H10Cl2Zr 
292.31 
(-) (-) 
Zr(2+) 
Cl Cl Dicyclopentadienyl-zirconium-dichloride III/35c4 2.2:1003 
33479 C10H10Cl4N3P3Ru 
508.01 
N P 
ClCl C10H10Cl4N3P3Ru III/35a 3.2:892 
(-)(-) PH NRu(2+) 
PN 
Cl 
Cl 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33480 C10H10Co2FeN2 
O2S2 (-) 
C10H10Co2FeN2O2S2 III/35c4 2.2:1004 
428.04 
Co(+)S 
(-) Co(+) 
Fe 
N 
O 
S N 
O 
33481 C10H10FNO 
179.19 
F 
HO 2-(5-Fluoro-1H-indol-3-yl)-ethanol III/35c2 2.2:830 
NH 
33482 C10H10F2 
168.18 
F 
F 
6,7-Difluoro-1,2,3,4-tetrahydro-naphthalene III/35b 2.2:935 
33483 C10H10F2O 
184.18 
(E/Z) 
Ph 
F 
FHO 
Ph 
HO 
+ 
F 
F 
(E,Z)-(R,S)-3,4-Difluoro-2-phenyl-but-3-en-
2-ol 
III/35b 2.2:938 
33484 C10H10F2O2 
200.18 
COOH 
F F 
Ph 
2,2-Difluoro-4-phenyl-butyric acid III/35b 2.2:939 
33485 C10H10F3N 
201.19 
F3C (R,S)-6-Trifluoromethyl-5,6,7,8-tetrahydro-
quinoline 
III/35c2 2.2:831 
N 
+ 
F3C 
N 
33486 C10H10F3NO 
217.19 
O 1-(4-Dimethylamino-phenyl)-2,2,2-trifluoro-
ethanone 
III/35e 2.2.1:1114 
CF3 
N 
H3C 
CH3 
33487 C10H10F3NO 
217.19 
25771-21-5 
F3C 
CH3 
N 
O 
CH3 
N,N-Dimethyl-4-trifluoromethyl-benzamide III/35e 2.2.1:1113 
33488 C10H10F3NO 
217.19 
N 
O 
C2H5 
CF3 3-((E)-2-Ethoxy-1-trifluoromethyl-vinyl)-
pyridine 
III/35b 2.2:941 
33489 C10H10F3NO2 
233.19 
NH2 
F3C 
O 
O Ph 
(R)-2-Amino-3,3,3-trifluoro-propionic acid 
benzyl ester 
III/35b 2.2:942 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33490 C10H10F3NO4 
265.19 
OHO 
O 
H5C2 
4-Hydroxy-6-methoxy-2-trifluoromethyl-
nicotinic acid ethyl ester 
III/35b 2.2:943 
CH3 
N OF3C 
33491 C10H10F4N2O4 
298.19 O O 
H5C2 N(+) 
N(-) (Z)-4-Diazo-2-fluoro-3-trifluoromethyl-pent-
2-enedioic acid diethyl ester 
III/35b 2.2:945 
O 
F C2H5 
CF3 O 
33492 C10H10F4O3 
254.18 O 
F F F F C10H10F4O3 III/35b 2.2:946 
H2C CH2 
O O 
33493 C10H10F6O 
260.18 
O 
F3C CF3 
H3C 
5-Methyl-6,6-bis-trifluoromethyl-cyclohex-3-
enecarbaldehyde 
III/35b 2.2:947 
33494 C10H10F15O5P 
526.13 
CF3 C10H10F15O5P III/35b 2.2:948 
O 
OF3C 
CF3 
PO 
O 
O 
CF3 
CF3 
33495 C10H10F16N3O5P3 
649.1 O O 
CF3F3C 2-Fluoro-2,4,4,6,6-pentakis-(2,2,2-trifluoro-
ethoxy)-2.5,4.5,6.5-
III/35a 3.2:893 
P [1,3,5,2,4,6]triazatriphosphinine 
N N CF3F3C 
OO P P 
FO N 
F3C 
33496 C10H10FeO5 
266.03 
FeCO 
H3C 
O 
O 
C10H10FeO5 III/35c4 2.2:1005 
C 
OC 
O 
33497 C10H10HgO5 
410.77 
O 
Hg 
OH3C 
C10H10HgO5 III/35c4 2.4:3368 
HO O CH3 
O 
33498 C10H10MoO2 
258.12 
(-) 
(delocalized system) 
Mo(2+)C 
CH2 
CH2(-) 
O 
C 
O 
Cyclopentadienyl-allyl-dicarbonyl-
molybdenum 
III/35c4 2.2:1006 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33499 C10H10NO4P 
239.16 O O CH3 
NC (4-Cyano-benzoyl)-phosphonic acid 
dimethyl ester 
III/35e 2.2.4:3780 
P 
O 
CH3 
O 
33500 C10H10N2 
158.2 
CH3 
CH3 
NN 
3,4-Dimethyl-[2,7]naphthyridine III/35c2 2.2:833 
33501 C10H10N2 
158.2 
NH 
NH 
1,2,3,5-Tetrahydro-pyrrolo[2,3-f]indole III/35c2 2.2:832 
33502 C10H10N2O 
174.2 
CH3N 
O 4-Cyano-N,N-dimethyl-benzamide III/35e 2.2.1:1115 
CH3 
NC 
33503 C10H10N2O 
174.2 
CH3 N-(3-Methyl-indol-1-yl)-formamide III/35c2 2.2:834 
ON 
NH 
33504 C10H10N2OS 
206.26 
Ph 
NH 
N 
S 
CH3 
O 
Ph 
NH 
N 
S+ 
CH3 
O 
(R,S)-5-Methyl-3-phenyl-2-thioxo-
imidazolidin-4-one 
III/35e 2.2.1:1117 
33505 C10H10N2O2 
190.2 
O 
NH2 3-Methoxy-1-oxy-quinolin-4-ylamine III/35c2 2.2:835 
CH3 
N(+) 
O(-) 
33506 C10H10N2O2 
190.2 
NO2 
N 
5-Nitro-3-aza-tricyclo[6.2.1.02,7]undeca-
2,4,6-triene 
III/35c2 2.2:836 
33507 C10H10N2O2S 
222.26 
O 
NH 
S 
NH 
O 
PhH3C 
1-Acetyl-3-benzoyl-thiourea III/35e 2.2.1:1118 
33508 C10H10N2O2S 
222.26 S 
O O 5-Methyl-3-phenyl-2H-[1,2,6]thiadiazine 
1,1-dioxide 
III/35c2 2.2:837 
NNH 
Ph CH3 
33509 C10H10N2O2S2 
254.33 NO2 
S 
N 
2-(4-Nitro-benzylsulfanyl)-4,5-dihydro-
thiazole 
III/35c2 2.2:838 
S 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33510 C10H10N2O3 
206.2 CN 
NH2 
(E)-3-(5-Amino-furan-2-yl)-2-cyano-acrylic 
acid ethyl ester 
III/35c2 2.2:840 
H5C2 
O 
O 
O 
33511 C10H10N2O3 
206.2 
O 
NH 
O 
NH 
O 
PhH3C 
1-Acetyl-3-benzoyl-urea III/35e 2.2.1:1119 
33512 C10H10N2O3 
206.2 NO2N 
O 
1-(4-Nitro-phenyl)-pyrrolidin-2-one III/35b 3.2:1201 
33513 C10H10N2O3 
206.2 
CH3 
O 
O 
NH 
O 
NH 
CH3 
O 
O 
NH 
O 
NH 
+ 
((R,S)-2-Oxo-2,3-dihydro-1H-indol-3-yl)-
carbamic acid methyl ester 
III/35c2 2.2:839 
33514 C10H10N2S 
190.26 Ph 
C2H5 3-Ethyl-4-phenyl-[1,2,5]thiadiazole III/35c2 2.2:842 
N 
SN 
33515 C10H10N2S 
190.26 
S 
CH3 
H3C 
N N 
2,7-Dimethyl-pyrrolo[1,2-a]pyrimidine-6-
carbothioaldehyde 
III/35c2 2.2:841 
33516 C10H10N4O 
202.21 Ph 
CH3 
O 
NH 
N 
NHN 
Methyl-(4-nitroso-5-phenyl-2H-pyrazol-3-
yl)-amine 
III/35c2 2.2:843 
33517 C10H10N4OS 
234.28 
Ph 
O 
H3C 
NH 
NH 
N 
SN 
5-Phenylamino-[1,2,4]thiadiazole-3-
carboxylic acid methylamide 
III/35c2 2.2:844 
33518 C10H10N4O2 
218.21 
NH2 6-(2-Amino-phenyl)-4-methyl-2H-
[1,2,4]triazine-3,5-dione 
III/35c2 2.2:845 
N 
NH 
O ON 
CH3 
33519 C10H10O 
146.19 
3481-02-5 Ph 
O Cyclopropyl phenyl ketone; 
Cyclopropyl-phenyl-methanone; 
Methanone, cyclopropylphenyl- 
III/35e 2.2.1:1120 
33520 C10H10O 
146.19 
H2C CH2 
O 
2,3,5,6-Tetramethylene-7-oxa-
bicyclo[2.2.1]heptane 
III/35e 2.2.2:2889 
H2C CH2 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33521 C10H10O 
146.19 
H3C 
O 5-Methyl-indan-1-one III/35e 2.2.1:1124 
33522 C10H10O 
146.19 
39627-61-7 
OCH3 7-Methylindan-1-one III/35e 2.2.1:1126 
33523 C10H10O 
146.19 
24623-20-9 
H3C 
O 6-Methyl-indan-1-one III/35e 2.2.1:1125 
33524 C10H10O 
146.19 
O 4-Methyl-indan-1-one III/35e 2.2.1:1123 
24644-78-8 
CH3 
33525 C10H10O 
146.19 
O O 1H-Inden-1-one, 2,3-dihydro-3-methyl-; 
(R,S)-3-Methyl-indan-1-one 
III/35e 2.2.1:1122 
6072-57-7 + 
CH3 CH3 
33526 C10H10O 
146.19 
17496-14-9 
O 
CH3 
O 
CH3 
+ 
1H-Inden-1-one, 2,3-dihydro-2-methyl-; 
(R,S)-2-Methyl-indan-1-one 
III/35e 2.2.1:1121 
33527 C10H10O 
146.19 O 
1a,2,7,7a-Tetrahydro-1-oxa-
cyclopropa[b]naphthalene 
III/35e 2.2.2:2890 
33528 C10H10OS 
178.25 
O 
CH3 
S 
2-Methylsulfanyl-4H-chromene III/35c2 2.2:846 
33529 C10H10O2 
162.19 
(E/Z) (E,Z)-3-p-Tolyl-acrylic acid III/35e 2.2.1:1132 
COOH 
H3C 
33530 C10H10O2 
162.19 O O 
CH2 1,4-Bis-vinyloxy-benzene III/35e 2.2.2:2891 
4024-21-9 
H2C 
33531 C10H10O2 
162.19 
O 3-Pent-2-ynyl-pyran-2-one III/35c2 2.2:847 
O 
H5C2 
33532 C10H10O2 
162.19 
H3C 
OH 
O 7-Hydroxy-5-methyl-indan-1-one III/35e 2.2.1:1133 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33533 C10H10O2 
162.19 
CH3O (R,S)-2-Methyl-chroman-3-one III/35c2 2.2:848 
CH3O 
O 
+ 
O 
33534 C10H10O2 
162.19 
CH3 
O 
O + 
CH3 
O 
O 
(R,S)-3-Methyl-isochroman-1-one III/35c2 2.2:849 
33535 C10H10O2S 
194.25 
O 
S 
O 
Propionic acid 3-thiophen-2-yl-prop-2-ynyl 
ester 
III/35c2 2.2:850 
C2H5 
33536 C10H10O2S 
194.25 O 
O 
Ph 
S + 
O 
O 
Ph 
S 
(R,S)-3-Phenyl-2,3-dihydro-thiophene 1,1-
dioxide 
III/35e 2.2.5:4250 
33537 C10H10O2W 
346.02 
(-) 
(delocalized system) 
W(2+) C 
CH2(-) 
O 
Dicyclopentadienyl-allyl-dicarbonyl-
tungsten 
III/35c4 2.2:1007 
CH2 
C 
O 
33538 C10H10O3 
178.19 
O 
O 
CH2 (E)-3-Furan-2-yl-acrylic acid allyl ester III/35c2 2.2:852 
O 
33539 C10H10O3 
178.19 
1603-79-8 Ph 
O 
O 
O 
C2H5 
Benzeneacetic acid, a-oxo-, ethyl ester; 
Glyoxylic acid, phenyl-, ethyl ester; 
Oxo-phenyl-acetic acid ethyl ester; 
a-Oxobenzeneacetic acid ethyl ester 
III/35e 2.2.1:1134 
33540 C10H10O3 
178.19 
3-(4-Methoxy-phenyl)-acrylic acid III/35e 2.2.1:1135 
COOH 
O 
H3C 
33541 C10H10O3 
178.19 
O 4-Acetyl-benzoic acid methyl ester III/35e 2.2.1:1137 
3609-53-8 O 
CH3 
H3C 
O 
33542 C10H10O3 
178.19 
21860-07-1 H3C 
OO 
O 
CH3 
3-Acetyl-benzoic acid methyl ester III/35e 2.2.1:1136 
33543 C10H10O3 
178.19 O 
H3C 
O 
O 5-Methoxy-2,3-dihydro-benzofuran-6-
carbaldehyde 
III/35c2 2.2:853 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33544 C10H10O3 
178.19 
CH3 
OH O 
O 
CH3 
OH O 
O+ 
(R,S)-8-Hydroxy-3-methyl-isochroman-1-
one 
III/35c2 2.2:851 
33545 C10H10O4 
194.18 
24781-23-5 
O 
O 
CH3O 
O 
H3C 
3-Acetoxy-benzoic acid methyl ester III/35e 2.2.1:1141 
33546 C10H10O5S2 
274.31 O 
O 
S 
O 
S 
Ph 
O O 
Benzenesulfonic acid (R,S)-1,1-dioxo-2,3-
dihydro-1H-1.6-thiophen-3-yl ester 
III/35e 2.2.5:4251 
+ 
O 
O 
S 
O 
S 
Ph 
O O 
33547 C10H10S 
162.25 
H3C 
CH3 
S 2,6-Dimethyl-benzo[b]thiophene III/35c2 2.2:854 
33548 C10H10S 
162.25 
H3C 
CH3 
2,5-Dimethyl-benzo[b]thiophene III/35c2 2.2:855 
S 
33549 C10H10S2 
194.32 
67984-20-7 
H3CCH3 
SS 
3,3'-Dimethyl-(2,2')bithiophenyl; 
3,3'-Dimethyl-[2,2']bithiophenyl 
III/35c2 2.2:856 
33550 C10H10Sn 
248.88 (-)(-) Sn(2+) 
Dicyclopentadienyl-tin III/35c4 2.2:1008 
33551 C10H11B 
142.0 PhB 
C10H11B III/35a 2.2:903 
33552 C10H11B 
142.0 PhB 
C10H11B III/35a 2.2:904 
33553 C10H11BrO 
227.1 
OCH3 1-(4-Bromo-2,6-dimethyl-phenyl)-ethanone III/35e 2.2.1:1143 
CH3 
Br CH3 
33554 C10H11ClF2 
204.64 
FA FB 
Cl 
Ph 
FA FB 
Cl 
Ph+ 
((R,S )-2-Chloro-3,3-difluoro-butyl)benzene 
III/35b 2.2:949 
33555 C10H11ClFeO6 
318.49 (-) 
C10H11ClFeO6 III/35c4 2.2:1009 
O(-) O 
Fe(2+) C 
O 
CH2 
O 
C 
Cl 
O O 
H3C 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33556 C10H11ClHfO 
361.14 
(-)(-) 
Hf(4+) 
Cl(-) OH(-) C10H11ClHfO III/35e 2.2.7:4652 
33557 C10H11ClN2O 
210.66 
ONHCl NHCl 
+ 
O (R,S)-8-Chloro-4-methyl-1,3,4,5-tetrahydro-
benzo[b][1,4]diazepin-2-one 
III/35c2 2.2:857 
CH3 
NH NH CH3 
33558 C10H11ClO 
182.65 
938-18-1 
O 
Cl 
CH3 Benzoyl chloride, 2,4,6-trimethyl-; 
Mesitoyl chloride; 
Mesitylcarbonyl chloride; 
2,4,6-Trimethylbenzoyl chloride 
III/35e 2.2.1:1144 
H3C CH3 
33559 C10H11ClO2 
198.65 
CH3O 6-Chloro-2,4-dimethyl-4H-
benzo[1,3]dioxine 
III/35c2 2.2:858 
O 
Cl 
CH3 
33560 C10H11CrNO4 
261.19 
Cr(-) 
N(+)H3C CH2 
C O 
C10H11CrNO4 III/35c4 2.2:1010 
C C 
C 
OH3C 
O 
O 
33561 C10H11F 
150.19 Ph 
F ((E)-4-Fluoro-but-3-enyl)-benzene III/35b 2.2:950 
33562 C10H11F 
150.19 
Ph 
CH3 
F 
((E)-3-Fluoro-but-2-enyl)-benzene III/35b 2.2:952 
33563 C10H11FN2O2 
210.21 
Ph 
NH 
NH 
O 
F 
O 
CH3 
(Z)-2-Fluoro-3-methoxy-acrylic acid N'-
phenyl-hydrazide 
III/35b 2.2:954 
33564 C10H11FO 
166.19 
Ph 
O 
F 
1-Fluoro-4-phenyl-butan-2-one III/35b 2.2:957 
33565 C10H11FO 
166.19 
O 
H3C F 
CH2 1-(2-Fluoro-allyl)-4-methoxy-benzene III/35b 2.2:959 
33566 C10H11FO 
166.19 
OCH3 1-(4-Fluoro-2,6-dimethyl-phenyl)-ethanone III/35e 2.2.1:1145 
CH3 
F CH3 
33567 C10H11FO 
166.19 
Ph 
F 
CH3 
O 
Ph 
F 
O 
+ CH3 
(R,S)-3-Fluoro-4-phenyl-butan-2-one III/35b 2.2:958 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33568 C10H11FO 
166.19 
O 
F 
CH3 (1R,2S)-2-Fluoro-1-methoxy-indan III/35b 2.2:955 
33569 C10H11FO 
166.19 
O 
F 
CH3 (1S,2S)-2-Fluoro-1-methoxy-indan III/35b 2.2:956 
33570 C10H11FO2 
182.19 O 
F 
O 
H3C 
(R,S)-2-Fluoro-2-(4-methoxy-benzyl)oxirane 
III/35b 2.2:960 
+ 
O 
F 
O 
H3C 
33571 C10H11FO3 
198.19 Ph 
O 
F 
O 
O 
C2H5 Ph 
O 
F 
O 
O 
C2H5+ 
(R,S)-Fluoro-phenoxy-acetic acid ethyl 
ester 
III/35b 2.2:966 
33572 C10H11F2NO3 
231.2 
N 
OH O 
O 
C2H5 
F F (R,S)-2,2-Difluoro-3-hydroxy-3-pyridin-2-yl-
propionic acid ethyl ester 
III/35b 2.2:967 
+ 
F F 
N 
OH O 
O 
C2H5 
33573 C10H11F3O 
204.19 F3C 
O 
4,4-Dicyclopropyl-1,1,1-trifluoro-but-3-en-2-
one 
III/35b 2.2:969 
33574 C10H11F3O 
204.19 
OH (R,S)-1,1,1-Trifluoro-4-phenyl-butan-2-ol III/35b 2.2:968 
Ph CF3 
+ 
OH 
Ph CF3 
33575 C10H11F3O2 
220.19 
F3C 
OH OH 
Ph 
(1R,3S)-4,4,4-Trifluoro-1-phenyl-butane-
1,3-diol 
III/35b 2.2:971 
33576 C10H11F3O3S 
268.25 S O CF3 
CH3OO Toluene-4-sulfonic acid (R,S)-2,2,2-
trifluoro-1-methyl-ethyl ester 
III/35b 2.2:973 
H3C 
+ 
S O CF3 
CH3OO 
H3C 
33577 C10H11F5 
226.19 
H11C5 
F 
CF3 
(E)-1,1,1,2,3-Pentafluoro-dec-2-en-4-yne III/35b 2.2:974 
F 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33578 C10H11FeNO3 
249.04 (-) 
Fe(+)CO 
C10H11FeNO3 III/35c4 2.2:1011 
C 
OO 
N CH3 
H3C 
33579 C10H11FeO2 
219.04 (-) 
(unknown relative positions) Trimethylcyclopentadienyl-dicarbonyl-iron III/35e 2.2.7:4631 
Fe(2+) 
O O 
C C 
33580 C10H11N 
145.2 C 
CH3 
CH3 
N 
Ph 
(2-Methyl-propenylidene)-phenyl-amine III/35b 3.2:1202 
33581 C10H11N 
145.2 
2571-52-0 CN 
CH3 Benzonitrile, 2,4,6-trimethyl-; 
1-Cyano-2,4,6-trimethylbenzene; 
-Isodurylonitrile; 
III/35b 3.2:1203 
2,4,6-Trimethyl-benzonitrile 
CH3H3C 
33582 C10H11N 
145.2 N 
Ph 
H3C 
+ 
Ph 
H3C 
N 
(R,S)-2,3-Dimethyl-2-phenyl-2H-azirine III/35b 3.2:1204 
33583 C10H11N 
145.2 
3484-18-2 C2H5 
NH 
2-Ethyl-1H-indole; 
2-Ethyl-indole 
III/35c2 2.2:859 
33584 C10H11N 
145.2 N (R,S)-3-Methyl-3,4-dihydro-isoquinoline III/35c2 2.2:860 
CH3 
+ 
N 
CH3 
33585 C10H11N 
145.2 HN + HN 
C10H11N III/35b 3.2:1205 
33586 C10H11NO 
161.2 
Ph 
O NH 
CH3 (Z)-3-Methylamino-1-phenyl-propenone III/35e 2.2.1:1146 
33587 C10H11NO 
161.2 
Ph 
O NH2 
CH3 
(Z)-3-Amino-1-phenyl-but-2-en-1-one III/35e 2.2.1:1147 
33588 C10H11NO 
161.2 
56309-56-9 
CH3 
CH3 
C 
O 
Benzene, 1-isocyanato-2-(1-methylethyl)-; 
1-Isocyanato-2-isopropyl-benzene; 
2-Isopropylphenyl isocyanate; 
o-Isopropylphenyl isocyanate 
III/35e 2.2.1:1148 
N 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33589 C10H11NO 
161.2 
31027-31-3 
CH3 
CH3O 
C 
Benzene, 1-isocyanato-4-(1-methylethyl)-; 
p-cumenyl isocyanate; 
1-Isocyanato-4-isopropyl-benzene; 
p-Isopropylphenyl isocyanate 
III/35e 2.2.1:1149 
N 
33590 C10H11NO 
161.2 
2904-57-6 
CH3 
CH3 
H3C N(+) O(-) 
Mesitonitrile oxide; 
2,4,6-Trimethyl-benzonitrile N-oxide 
III/35e 2.2.3:3586 
33591 C10H11NO 
161.2 
4641-57-0 N 
Ph 
O 
1-Phenyl-2-pyrrolidinone; 
1-Phenyl-2-pyrrolidone; 
1-Phenyl-pyrrolidin-2-one; 
2-Pyrrolidinone, 1-phenyl- 
III/35b 3.2:1206; 
III/35e 2.2.1:1150 
33592 C10H11NO 
161.2 
1-Methoxymethyl-1H-indole III/35c2 2.2:862 
N 
O 
CH3 
33593 C10H11NO 
161.2 
O 
3,3-Dimethyl-1,3-dihydro-indol-2-one III/35c2 2.2:863 
NH 
33594 C10H11NO 
161.2 
O 7-Methyl-2,3-dihydro-1H-quinolin-4-one III/35c2 2.2:861 
H3C NH 
33595 C10H11NO 
161.2 
826-72-2 ON 
CH3 1-Methyl-3,4-dihydro-1H-quinolin-2-one III/35e 2.2.1:1151 
33596 
193.26 
C10H11NOS 
Ph 
CH3 
SO 
N Ph 
CH3 
SO 
N+ one 
(R,S)-1-Methyl-4-phenylsulfanyl-azetidin-2-III/35c2 2.2:866 
33597 C10H11NOS 
193.26 Ph 
S 
N 
O 
3-Phenylsulfanyl-5,6-dihydro-4H-
[1,2]oxazine 
III/35c2 2.2:864 
33598 C10H11NOS 
193.26 
OHH3C S (R,S)-1-(6-Methyl-benzothiazol-2-yl)-
ethanol 
III/35c2 2.2:865 
CH3N 
+ 
CH3 
OHH3C 
N 
S 
33599 C10H11NO2 
177.2 
2719-21-3 
NH CH3 
O 
O 
H3C 
Acetamide, N-(4-acetylphenyl)-; 
Acetanilide, 4'-acetyl-; 
N-(4-Acetyl-phenyl)-acetamide 
III/35b 3.2:1207; 
III/35e 2.2.1:1154 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33600 C10H11NO2 
177.2 
Ph 
O 
NH 
O 
CH3 
N-(2-Oxo-2-phenyl-ethyl)-acetamide III/35e 2.2.1:1152 
33601 C10H11NO2 
177.2 
O N-(2-Acetyl-phenyl)-acetamide III/35e 2.2.1:1153 
CH3 
O 
NH CH3 
33602 C10H11NO2 
177.2 
OH OH (R,S)-3-(2-Hydroxy-ethyl)-1,3-dihydro-indol-
2-one 
III/35c2 2.2:868 
+ 
O 
NH 
O 
NH 
33603 C10H11NO2 
177.2 
C2H5O C2H5O (R,S)-3-Ethoxy-2,3-dihydro-isoindol-1-one III/35c2 2.2:870 
NH NH+ 
O O 
33604 C10H11NO2 
177.2 
OH3C 1-(3,4-Dihydro-benzo[c][1,2]oxazin-1-yl)ethanone 
III/35c2 2.2:867 
N 
O 
33605 C10H11NO2 
177.2 
O 
C2H5 
O 
N 
3-Ethyl-3,4-dihydro-benzo[e][1,3]oxazin-2-
one 
III/35c2 2.2:869 
33606 C10H11NO2S 
209.26 
O 
N 
OS 
2-(4,4-Dimethyl-4,5-dihydro-oxazol-2-yl)-
thiophene-3-carbaldehyde 
III/35c2 2.2:871 
33607 C10H11NO2S 
209.26 O 
O 
S 
NH 
Ph ((R,S)-1,1-Dioxo-2,3-dihydro-1H-1.6-
thiophen-3-yl)-phenyl-amine 
III/35e 2.2.5:4252 
+ 
O 
O 
S 
NH 
Ph 
33608 C10H11NO2S2 
241.33 
80281-95-4 
C2H5 
O 
S 
NH 
S CH3 6-Methylsulfanyl-4H-thieno[3,2-b]pyrrole-5-
carboxylic acid ethyl ester; 
4H-Thieno[3,2-b]pyrrole-5-carboxylic acid, 
6-(methylthio)-, ethyl ester 
III/35c2 2.2:873 
O 
33609 C10H11NO3 
193.2 
NH CH3 
O 
O 
H3C 
O 
Acetic acid 4-acetylamino-phenyl ester III/35b 3.2:1209 
33610 C10H11NO3 
193.2 
OCH3 1-(2,6-Dimethyl-4-nitro-phenyl)-ethanone III/35e 2.2.1:1157 
CH3 
O2N CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33611 C10H11NO3 
193.2 
17012-22-5 
O 
O 
H3C 
NH CH3 
O 
4-Acetylamino-benzoic acid methyl ester III/35b 3.2:1208; 
III/35e 2.2.1:1156 
33612 C10H11NO3 
193.2 
52189-36-3 H3C 
O 
NH 
O 
CH3O 
3-Acetylamino-benzoic acid methyl ester III/35e 2.2.1:1155 
33613 C10H11NO3 
193.2 
O 
O 
C2H5 
O 
N 
+ 
O 
O 
C2H5 
O 
N 
(R,S)-3-Oxo-2-pyridin-3-yl-propionic acid 
ethyl ester 
III/35c2 2.2:874 
33614 C10H11NO3 
193.2 C2H5 
OH 
N + 
C2H5 
OH 
N 
(R,S)-3-Ethyl-4-hydroxy-3,4-dihydro-
benzo[e][1,3]oxazin-2-one 
III/35c2 2.2:875 
OO OO 
33615 C10H11NO3S 
225.26 
O 
OS 
(R,S)-5-Benzenesulfonyl-pyrrolidin-2-one III/35c2 2.2:876 
O PhNH 
+ 
O 
OS 
O PhNH 
33616 C10H11NO4 
209.2 
2904-59-8 
O 
O 
O 
H3C 
N(+) O(-) 
CH3 2,4,6-Trimethoxy-benzonitrile N-oxide III/35e 2.2.3:3587 
H3C 
33617 C10H11NO4 
209.2 
O 
CH3 
O 6-Hydroxy-5-oxo-1,2,3,5-tetrahydro-
indolizine-8-carboxylic acid methyl ester 
III/35c2 2.2:878 
N 
HO 
O 
33618 C10H11NO4 
209.2 
O 4-Oxo-4,7-dihydro-5H-furo[2,3-c]pyridine-6-
carboxylic acid ethyl ester 
III/35c2 2.2:877 
H5C2 
O N 
O 
O 
33619 C10H11NS 
177.27 
1-Methylsulfanyl-3,4-dihydro-isoquinoline III/35c2 2.2:879 
N 
S 
CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33620 C10H11N2 
159.21 
NH3(+) NH2 8-Amino-naphthalen-1-yl-ammonium III/35b 3.2:1210 
33621 C10H11N2PS 
222.25 
S 
N P 
N 
H3C 
CH3 
Ph 
Dimethyl-(5-phenyl-[1,3,4]thiazaphosphol-
2-yl)-amine 
III/35a 3.2:894 
33622 C10H11N3O2 
205.21 
OO(-) 
NH 
N(+) 
N 
C10H11N3O2 III/35c2 2.2:880 
33623 C10H11N3O3 
221.21 
N 
O 
H3C 
O 
CN 
4-(1,3-Dimethyl-2,4-dioxo-1,2,3,4-
tetrahydro-pyrimidin-5-yl)-2-oxo-
butyronitrile 
III/35e 2.2.1:1158 
NO 
CH3 
33624 C10H11N3O3 
221.21 
N 
NO 
O 
CH3 
H3C 
OH 
CN 
(Z)-4-(1,3-Dimethyl-2,4-dioxo-1,2,3,4-
tetrahydro-pyrimidin-5-yl)-2-hydroxy-but-2-
enenitrile 
III/35e 2.2.1:1159 
33625 C10H11N3O3 
221.21 
CH3 
O 
Acetic acid 2-(4-oxo-4,7-dihydro-3H-
pyrrolo[2,3-d]pyrimidin-5-yl)-ethyl ester 
III/35c2 2.2:881 
O 
O 
NH 
NHN 
33626 C10H11N3O3 
221.21 
N 
NO 
O 
CH3 
H3C 
O CN 
1,3-Dimethyl-2,4-dioxo-1,3,4,4a,5,8a-
hexahydro-2H-pyrano[2,3-d]pyrimidine-7-
carbonitrile 
III/35e 2.2.1:1160 
33627 C10H11N3O3S 
253.28 
O 
NOO 
CH3 4-Amino-N-(5-methyl-isoxazol-3-yl)-
benzenesulfonamide 
III/35b 3.2:1211 
S 
NH 
H2N 
33628 C10H11N3O3S 
253.28 
NH2O 4-Amino-1,1-dioxo-2-phenethyl-1,2-
dihydro-1.6-[1,2,5]thiadiazol-3-one 
III/35c2 2.2:882 
NN 
Ph S 
OO 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33629 C10H11O3P 
210.17 P 
O CH2 
O 
C10H11O3P III/35a 3.2:895 
Ph CH3 
O 
33630 C10H11O4P 
226.17 
O 
P 
O 
O 
O 
Ph 
5,5-Dimethyl-2-oxo-2-phenyl-2.5-
[1,3,2]dioxaphospholan-4-one 
III/35a 3.2:897 
33631 C10H11O4P 
226.17 
CH2 2-Ethoxy-4-methylene-4H-
benzo[1,3,2]dioxaphosphinine 2-oxide 
III/35a 3.2:896 
O 
O 
P O 
O C2H5 
33632 C10H11O5P 
242.16 
O 
PH 
O O 3-Phenyl-1,4,6,9-tetraoxa-5.5-phospha-
spiro[4.4]nonan-2-one 
III/35a 3.2:898 
OO Ph 
33633 C10H12BClO2 
210.47 
O 
B 
O Cl 
Ph 
C10H12BClO2 III/35a 2.2:905 
+ 
O 
B 
O Cl 
Ph 
33634 C10H12BN 
157.02 
N 
CH3 BH3 C10H12BN III/35a 2.2:906 
33635 C10H12BRh 
245.92 
(-) (-) 
B 
Rh(2+) 
C10H12BRh III/35a 2.2:907 
33636 C10H12B2Co2S2 
335.82 
4,6-(CpCo)2-3,5-S2B2H2 III/35a 2.2:908 
33637 C10H12B2Fe 
209.67 BH(-) 
BH(-) 
Fe(2+) 
C10H12B2Fe III/35a 2.2:909 
33638 C10H12BrF 
231.1 Ph 
F ((R,S)-4-Bromo-4-fluoro-butyl)-benzene III/35b 2.2:975 
Br 
+ 
F 
Ph 
Br 
33639 C10H12Br2MoN2O 
S4 
560.22 
NH2C 
H2C 
S 
S 
Mo 
S 
S 
N 
CH2 
CH2Br 
Br 
O 
C10H12Br2MoN2OS4 III/35e 2.2.7:4725 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33640 C10H12ClF 
186.65 Ph 
F ((R,S)-4-Chloro-4-fluoro-butyl)-benzene III/35b 2.2:976 
Cl 
+ 
F 
Ph 
Cl 
33641 C10H12ClN 
181.66 
CH3 CH3 (R,S)-1-Chloro-4,7-dimethyl-6,7-dihydro-
5H-[2]pyrindine 
III/35c2 2.2:883 
+ 
N N 
CH3Cl CH3Cl 
33642 C10H12ClN 
181.66 
7-Chloro-2-methyl-1,2,3,4-tetrahydro-
isoquinoline 
III/35c2 2.2:884 
N 
CH3Cl 
33643 C10H12Cl2MoN2O 
S4 
471.32 
NH2C 
H2C 
S 
S 
Mo 
S 
S 
N 
CH2 
CH2Cl 
Cl 
O 
C10H12Cl2MoN2OS4 III/35e 2.2.7:4726 
33644 C10H12Cl2O2Te 
362.71 Cl 
O 
O 
C2H5 C10H12Cl2O2Te III/35c4 2.2:1012 
Ph 
Te 
Cl 
33645 C10H12Cl3N 
252.57 
HCl 
Cl 
Cl 
CH3 
NH HCl 
Cl 
Cl 
CH3 
NH+ 
(R,S)-7,8-Dichloro-4-methyl-1,2,3,4-
tetrahydro-isoquinoline; compound with 
hydrochloric acid 
III/35c2 2.2:885 
33646 C10H12Cr2N4O3 
340.22 (-)(-) 
Cr(+) 
N 
Cr(+) 
O C10H12Cr2N4O3 III/35c4 2.2:1013 
NH2 
N N 
O O 
33647 C10H12FIO 
294.11 
O 
H3C F 
I 1-((R,S)-2-Fluoro-3-iodo-propyl)-4-
methoxy-benzene 
III/35b 2.2:977 
+ 
I 
O 
H3C F33648 C10H12FN3OS 
241.28 
O 
NH NH 
F C10H12FN3OS III/35b 2.2:978 
NH C2H5 
S 
33649 C10H12F2O 
186.2 
O 4-tert-Butyl-6,6-difluoro-cyclohexa-2,4-
dienone 
III/35b 2.2:979 
F 
F 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33650 C10H12F3NO 
219.2 
F3C 
OH NH2 
Ph 
(2R,4S)-4-Amino-1,1,1-trifluoro-4-phenyl-
butan-2-ol 
III/35b 2.2:980 
33651 C10H12F3NO 
219.2 
F3C 
OH NH2 
Ph 
(2R,4R)-4-Amino-1,1,1-trifluoro-4-phenyl-
butan-2-ol 
III/35b 2.2:981 
33652 C10H12F3N3O3 
279.22 HN 
N 
NH CH3 
O 
F3C O O 
CH3 
+ 
(R,S)-2-Acetylamino-3-(2-trifluoromethyl-
1H-imidazol-4-yl)-propionic acid methyl 
ester 
III/35b 2.2:984 
HN 
N 
NH CH3 
O 
F3C 
O O 
CH3 
33653 C10H12F3O3PS 
300.23 P(+) 
Ph 
F3C 
S 
O O 
O(-) 
1-Methyl-1-phenyl-phosphiranium trifluoromethanesulfonate 
III/35a 3.2:899; 
III/35c2 2.2:886 
33654 C10H12F4O3 
256.19 
O 
F3C F 
O 
O 
H5C2 
2,3,3,3-Tetrafluoro-2-(3-oxo-cyclopentyl)propionic 
acid ethyl ester 
III/35b 2.2:985 
33655 C10H12F6N2O3 
322.2 NH 
F3C C10H12F6N2O3 III/35b 2.2:986 
F3C 
NCH3 
O 
CH3H3C 
OO 
33656 C10H12F6N2O3 
322.2 HN 
CF3 
CF3 
C10H12F6N2O3 III/35b 2.2:987 
NCH3 
O 
CH3H3C 
OO 
33657 C10H12Mo 
228.14 
(-)(-) 
Mo(2+) 
H H C10H12Mo III/35c4 2.2:1014 
33658 C10H12Mo2N2O14 
576.09 
[(Ethylenedinitrilo)tetraacetato]hexaoxodim 
olybdate(V); 
III/35e 2.2.7:4727 
Molybdate(4-), [[N,N'-1,2-ethanediylbis[N-
[(carboxy-kO)methyl]glycinato-kN,kO]](4-
)]hexaoxodi-,; 
Molybdate(4-), [[N,N'-1,2-ethanediylbis[N-
(carboxymethyl)glycinato]](4-)-
N,O,ON:N',O',ON']hexaoxodi-,; 
{(MoO3)2[(OOCCH2)2NCH2]2}433659 
C10H12N2 
160.22 NH 
CH3 2,4,6-Trimethyl-phenyl-cyanamide III/35b 3.2:1213 
CN 
H3C CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33660 C10H12N2 
160.22 
N 
CH3 (1H-Indol-5-yl)-dimethyl-amine III/35b 3.2:1212 
H3C 
NH 
33661 C10H12N2 
160.22 
CH3 
NHN CH3 
2-Isopropyl-1H-pyrrolo[2,3-b]pyridine III/35c2 2.2:887 
33662 C10H12N2O 
176.22 CH3 
H3C O 
NC 
CH3N 
2-Isopropoxy-6-methyl-nicotinonitrile III/35c2 2.2:889 
33663 C10H12N2O 
176.22 
113123-41-4 
CH3 
H3C 
CH3 
CN 
O 
NH 
6-Isopropyl-4-methyl-2-oxo-1,2-dihydro-
pyridine-3-carbonitrile 
III/35c2 2.2:890 
33664 C10H12N2O 
176.22 Ph 
O 
Ph 
O (R,S)-4-Phenyl-tetrahydro-pyridazin-3-one III/35c2 2.2:888 
NH + NH 
NH NH 
33665 C10H12N2OS 
208.28 
NC 
O 
S 
N 
NC 
O 
S 
N 
+ 
(R,S)-3,3-Dimethyl-2-(thiazole-2-carbonyl)-
butyronitrile 
III/35c2 2.2:891 
33666 C10H12N2O2 
192.21 
(E/Z) 
CH3 
H3C 
NH 
NO2 
(E,Z)-(2-Nitro-propenyl)-p-tolyl-amine III/35b 3.2:1214 
33667 C10H12N2O2 
192.21 
(E/Z) (E,Z)-Dimethyl-[4-(2-nitro-vinyl)-phenyl]-
amine 
III/35e 2.2.3:3588 
H3C 
NO2 
N 
CH3 
33668 C10H12N2O2 
192.21 
CH3 
NH 
OO 
H3C CH3N 
1-(6-Acetyl-4-methylamino-pyridin-2-yl)ethanone 
III/35c2 2.2:894 
33669 C10H12N2O2 
192.21 
O 
N 
N 
4-(4,4-Dimethyl-4,5-dihydro-oxazol-2-yl)-
pyridin-3-ol 
III/35c2 2.2:892 
OH 
33670 C10H12N2O2 
192.21 
H3C O C10H12N2O2 III/35c2 2.2:893 
N 
H3C 
C2H5 
O(-) 
N(+) 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33671 C10H12N2O3 
208.21 
NH 
CN 
O 
H3C 
3,4,5-Trimethoxy-phenyl-cyanamide III/35b 3.2:1215 
H3C 
O 
O 
H3C 
33672 C10H12N2O3S 
240.28 H3C 
O(-) 
N(+) 
C10H12N2O3S III/35c2 2.2:895 
O(-) SN(+) 
CH3 
O 
33673 C10H12N2O3Se 
287.17 
O 
N 
Se 
O2N 
4-(4-Nitro-phenylselanyl)-morpholine III/35b 3.2:1216 
33674 C10H12N2O4 
224.21 
O2N NO2 
1-tert-Butyl-2,4-dinitro-benzene III/35e 2.2.3:3589 
33675 C10H12N2O4S 
256.28 
O2N 
S 
NO2 
1-tert-Butylsulfanyl-2,4-dinitro-benzene III/35e 2.2.3:3590 
33676 C10H12N2O4S 
256.28 
O 
O 
Acetic acid 7-formylamino-8-oxo-5-thia-1-
aza-bicyclo[4.2.0]oct-2-en-3-ylmethyl ester 
III/35b 3.2:1217 
NOH3C 
S NH O 
33677 C10H12N2O5 
240.21 
O 
O CH3 
O 3-Methyl-6-oxo-1,6-dihydro-pyridazine-4,5-
dicarboxylic acid 5-ethyl ester 4-methyl 
III/35c2 2.2:896 
H5C2 
O 
CH3 
ester 
N 
O NH 
33678 C10H12N4O2S 
252.29 
CH3S 
CH3 
NNN 
2-Methyl-5-methylsulfanyl-
[1,2,4]triazolo[1,5-c]pyrimidine-8-carboxylic 
acid ethyl ester 
III/35c2 2.2:897 
N 
O 
C2H5O 
33679 C10H12N4O5 
268.23 
O C10H12N4O5 III/35b 3.2:1219 
N NH 
N NO 
HO 
HO OH 
33680 C10H12N4S 
220.29 N 
N 
N 
H3C Ph 
S 2-Benzyl-5-methylsulfanyl-2H-[1,2,4]triazol-
3-ylamine 
III/35b 3.2:1220 
NH2 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33681 C10H12N4S 
220.29 N 
N 
N 
CH3S 
Ph 
H2N 1-Benzyl-5-methylsulfanyl-1H-[1,2,4]triazol-
3-ylamine 
III/35b 3.2:1221 
33682 C10H12N4S 
220.29 
N 
NN 
CH3H2N 
Ph 
S 
4-Benzyl-5-methylsulfanyl-4H-[1,2,4]triazol-
3-ylamine 
III/35b 3.2:1222 
33683 C10H12N5O6P 
329.21 
O(-) 
O 
P(+) 
O 
O 
N 
C10H12N5O6P III/35e 2.2.4:3781 
NO NH2 
HO 
N N 
33684 C10H12N5O9P2 
408.18 
O(-) 
O(-) 
O 
P 
O 
O 
P 
O(-)O 
N 
C10H12N5O9P2 
3-III/35e 2.2.4:3782 
O N NH2 
HO 
NN 
33685 C10H12N5O12P3 
487.15 
See appendix No: 33685 C10H12N5O12P3 
4-III/35e 2.2.4:3783 
33686 C10H12N6 
216.24 
NH2 
C4H9 
NNN 
5-Amino-2-butyl-[1,2,4]triazolo[1,5-
c]pyrimidine-8-carbonitrile 
III/35c2 2.2:898 
N 
CN 
33687 C10H12Ni 
190.9 
(-) 
(delocalized system) 
CH(-) 
Ni(2+) 
C10H12Ni III/35c4 2.2:1015 
33688 C10H12O 
148.2 
OCH3 1-(2,6-Dimethyl-phenyl)-ethanone III/35e 2.2.1:1161, 
1167 
CH3 
CH3 
33689 C10H12O 
148.2 
CH3 Benzaldehyde, 2,4,6-trimethyl-; 
2,4,6-Trimethyl-benzaldehyde 
III/35e 2.2.1:1162 
487-68-3 O 
H3C CH3 
33690 C10H12O 
148.2 
Ph 
O 
Cyclopropylmethoxy-benzene III/35e 2.2.2:2892 
33691 C10H12O 
148.2 
H3C 2,3-Dimethyl-2-phenyl-oxirane III/35e 2.2.2:2893 
Ph 
O 
33692 C10H12OS 
180.27 
Ph 
O 
S 
C2H5 
Phenyl-thioacetic acid S-ethyl ester III/35e 2.2.1:1169 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33693 C10H12OS 
180.27 
S 
O 
H3C 
C2H5 
4-Methyl-thiobenzoic acid S-ethyl ester III/35e 2.2.1:1170 
33694 C10H12O2 
164.2 
3602-55-9 
O 
2,5-Cyclohexadiene-1,4-dione, 2-(1,1-
dimethylethyl)-; 
2-tert-Butyl-[1,4]benzoquinone; 
2-tert-Butyl-p-benzoquinone 
III/35e 2.2.1:1175 
O 
33695 C10H12O2 
164.2 
CH3 CH3 2-Isopropyl-3-methyl-[1,4]benzoquinone III/35e 2.2.1:1176 
O 
H3C 
O 
33696 C10H12O2 
164.2 
527-17-3 
O 
OH3C 
CH3 
CH3 
CH3 
2,5-Cyclohexadiene-1,4-dione, 2,3,5,6-
tetramethyl-; 
2,3,5,6-Tetramethyl-[1,4]benzoquinone 
III/35e 2.2.1:1177 
33697 C10H12O2 
164.2 
PhO 2-Benzyl-1,3-dioxolane; 
2-Benzyl-[1,3]dioxolane 
III/35c2 2.2:902 
101-49-5 O 
33698 C10H12O2 
164.2 
O 
O 
CH3 
+ 
O 
O 
CH3 
(1S*,6R*)-3,7,7-Trimethyl-
bicyclo[4.1.0]hept-3-ene-2,5-dione 
III/35e 2.2.1:1178 
33699 C10H12O2 
164.2 
CH3 
O 
CH3 
O 
(R,S)-3,7-Dimethyl-2,3-dihydro-benzofuran-
3-ol 
III/35c2 2.2:899 
+ 
HO HO 
33700 C10H12O2 
164.2 
CH3O 
CH3O (R,S)-7-Methoxy-2-methyl-2,3-dihydro-
benzofuran 
III/35c2 2.2:900 
O + O 
CH3 CH3 
33701 C10H12O2 
164.2 
19214-00-7 
OO Adamantane-2,4-dione III/35e 2.2.1:1179 
33702 C10H12O2 
164.2 
CH3O 2,4-Dimethyl-4H-benzo[1,3]dioxine III/35c2 2.2:901 
O 
CH3 
33703 C10H12O2S 
196.27 
O 
O 
H3C 
S 
C2H5 
4-Methoxy-thiobenzoic acid S-ethyl ester III/35e 2.2.1:1180 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33704 C10H12O2S 
196.27 
16766-64-6 
O 
O 
Ph 
S 
O 
O 
Ph 
S 
+ 
3-phenyl-tetrahydro-thiophene-1,1-dioxide; 
(R,S)-3-Phenyl-tetrahydro-thiophene 1,1-
dioxide; 
3-Phenylthiolane,S,S-dioxide 
III/35e 2.2.5:4253 
33705 C10H12O2Te 
291.8 
Ph 
Te 
O 
O 
C2H5 
Phenyltellanyl-acetic acid ethyl ester III/35c4 2.2:1016 
33706 C10H12O2Te 
291.8 Ph 
Te 
O 
O 
CH3 
CH3 
Ph 
Te 
O 
O 
CH3 
CH3 
+ 
(R,S)-2-Phenyltellanyl-propionic acid 
methyl ester 
III/35c4 2.2:1017 
33707 C10H12O3 
180.2 
72987-57-6 
O 
CH3 
CH3 
O 
(E)-3-Furan-2-yl-acrylic acid isopropyl 
ester; 
Isopropyl 3-(2-furyl)acrylate; 
Isopropyl -2-furylacrylate; 
2-Propenoic acid, 3-(2-furanyl)-, 1-
III/35c2 2.2:905 
O methylethyl ester 
33708 C10H12O3 
180.2 
O 
O O 
CH3 
H3C 
CH3 
Carbonic acid 2,3-dimethyl-phenyl ester 
methyl ester 
III/35e 2.2.1:1172 
33709 C10H12O3 
180.2 O O 
CH3 Carbonic acid 2,6-dimethyl-phenyl ester 
methyl ester 
III/35e 2.2.1:1173 
CH3 
O 
CH3 
33710 C10H12O3 
180.2 
23676-08-6 
O 
O 
CH3 
O 
H5C2 
Benzoic acid, 4-ethoxy-, methyl ester; 
4-Ethoxy-benzoic acid methyl ester; 
4-Ethoxybenzoesuremethylester; 
Methyl 4-ethoxybenzoate 
III/35e 2.2.1:1182 
33711 C10H12O3 
180.2 
1131-62-0 
O 
CH3H3C 
O 
Acetophenone, 3',4'-dimethoxy-; 
3',4'-Dimethoxyacetophenone; 
1-(3,4-Dimethoxyphenyl)ethanone; 
Ethanone, 1-(3,4-dimethoxyphenyl)- 
III/35e 2.2.1:1183 
O 
H3C 
33712 C10H12O3 
180.2 
108593-47-1 
O 
O 
CH3 
H5C2 
O 
3-Ethoxy-benzoic acid methyl ester III/35e 2.2.1:1181 
33713 C10H12O3 
180.2 
O 
CH3O 
H3C CH3O 
(2,6-Dimethyl-pyran-4-ylidene)-acetic acid 
methyl ester 
III/35c2 2.2:903 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33714 C10H12O3 
180.2 
CH3O 2,3-Dimethoxy-2,3-dihydro-benzofuran III/35c2 2.2:904 
CH3 
O 
O 
33715 C10H12O3S 
212.26 
O 
S OPh 
O 
(R,S)-3-Phenoxy-tetrahydro-thiophene 1,1-
dioxide 
III/35e 2.2.5:4254 
+ 
O 
S OPh 
O 
33716 C10H12O4S 
228.26 
O 
C2H5 
O 
OH3C 
O 
H3C S 
2-Methyl-4-propionyloxy-thiophene-3-
carboxylic acid methyl ester 
III/35c2 2.2:906 
33717 C10H12O4S 
228.26 
Ph 
O 
S 
O 
O 
O 
5-Methyl-5-phenyl-[1,3,2]dioxathiane 2,2-
dioxide 
III/35e 2.2.5:4255 
33718 C10H12O5 
212.2 
O 
CH3 
OO 
H3C 
O O 
C10 H12 O5 III/35c2 2.2:907 
33719 C10H12O5 
212.2 
53662-83-2 O 
O 
O 
H5C2 
O 
O 
C2H5 
Diethyl 2,5-furandicarboxylate; 
Furan-2,5-dicarboxylic acid diethyl ester; 
2,5-Furandicarboxylic acid,diethyl ester 
III/35e 2.2.2:2894 
33720 C10H12O5S2 
276.33 
O 
OS 
O 
S 
Ph 
O O Benzenesulfonic acid (R,S)-1,1-dioxo-
tetrahydro-1.6-thiophen-3-yl ester 
III/35e 2.2.5:4256 
+ 
O 
OSO 
S 
Ph 
O O 
33721 C10H12O6 
228.2 
114533-62-9 
O 
CH3 
O 
O 
H3C 
O 
O O 
Acetic acid 2-(4-acetoxy-5-oxo-2,5-dihydro-
furan-3-yl)-ethyl ester; 
3-Acetoxy-4-(2-acetoxyethyl)-2(5H)-
furanone 
III/35c2 2.2:908 
33722 C10H12P2 
194.15 P 
1,8-Diphospha-tricyclo[6.2.2.02,7]dodeca-
2(7),3,5-triene 
III/35a 3.2:902 
P 
33723 C10H12S 
164.27 
S 
1,3,4,5-Tetrahydro-benzo[c]thiepine III/35c2 2.2:909 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33724 C10H12Se 
211.16 
Ph 
Se 
CH3 
CH3 
(2-Methyl-propenylselanyl)-benzene III/35c4 2.2:1018 
33725 C10H12Se 
211.16 
Ph 
Se 
CH3 
CH3 
((E)-1-Methyl-propenylselanyl)-benzene III/35c4 2.2:1019 
33726 C10H12Se 
211.16 
Ph 
CH3 ((Z)-1-Methyl-propenylselanyl)-benzene III/35c4 2.2:1020 
Se 
CH3 
33727 C10H12W 
316.04 
(-) (-) 
W(2+) 
H H C10H12W III/35c4 2.2:1021 
33728 C10H13AsO3 
256.13 
As 
O 
O 
O 
PhH3C 
H3C 
(2R,4R,5S)-4,5-Dimethyl-2-phenoxy-
[1,3,2]dioxarsolane 
III/35c4 2.2:1022 
33729 C10H13AsO3 
256.13 
As 
O 
O 
O 
PhH3C 
H3C 
(4S,5S)-4,5-Dimethyl-2-phenoxy-
[1,3,2]dioxarsolane 
III/35c4 2.2:1023 
33730 C10H13B 
144.02 
B CH3 
C10H13B III/35a 2.2:910 
33731 C10H13BBr3PS 
446.77 
139377-06-3 
P 
S 
Br 
Boron, tribromo(1,2,3,5-tetrahydro-1-
methyl-4,1-benzothiaphosphepin-P1)-
III/35a 3.2:903 
B 
Br Br 
33732 C10H13BClN6O2V 
346.45 NN N 
BH C10H13BClN6O2V III/35c4 2.2:1024 
NN 
V 
N 
O O 
CH3 
Cl 
33733 C10H13BCl2W 
398.77 
(Cp)2WH2 -BHCl2 III/35a 2.2:911 
33734 C10H13BN2O 
188.03 
N 
N 
B 
OH 
C3H7 
C10H13BN2O III/35a 2.2:912 
33735 C10H13BrN2 
241.13 
(E/Z) 
Br 
N 
CH3NH 
(E,Z)-(4-Bromo-4-pyridin-3-yl-but-3-enyl)-
methyl-amine 
III/35c2 2.2:910 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33736 C10H13BrO 
229.11 
O 
Br 
(S)-4-Bromo-adamantan-2-one III/35e 2.2.1:1184 
33737 C10H13BrO 
229.11 
O 
Br 
(R)-4-Bromo-adamantan-2-one III/35e 2.2.1:1185 
33738 C10H13BrO2 
245.11 
O 
O 
(R)-2-Bromo-4-oxa-
tricyclo[4.3.1.13,8]undecan-5-one 
III/35e 2.2.1:1186 
Br 
33739 C10H13BrO2 
245.11 
O (S)-2-Bromo-4-oxa-
tricyclo[4.3.1.13,8]undecan-5-one 
III/35e 2.2.1:1187 
O 
Br 
33740 C10H13BrO2 
245.11 
O 
O 
Br 
(R)-7-Bromo-4-oxa-
tricyclo[4.3.1.13,8]undecan-5-one 
III/35e 2.2.1:1188 
33741 C10H13BrO2 
245.11 
O 
O 
Br 
(S)-7-Bromo-4-oxa-
tricyclo[4.3.1.13,8]undecan-5-one 
III/35e 2.2.1:1189 
33742 C10H13BrO3 
261.11 
O 
H3C 
O 
Br 
2-Bromomethyl-6,6-dimethyl-6H-pyran-3-
carboxylic acid methyl ester 
III/35c2 2.2:911 
O 
33743 C10H13ClF4O2 
276.66 
(E/Z) 
C3H7O 
O 
F3C 
FCl 
C2H5 
F3C 
Cl 
+ 
C3H7O 
O 
F 
C2H5 
Butyric acid (E,Z)-1-((R,S)-1-chloro-1,2,2,2-
tetrafluoro-ethyl)-but-1-enyl ester 
III/35b 2.2:988 
33744 C10H13ClN2O2 
228.68 O 
ONH 
Cl 
N 
(6-Chloro-pyridin-3-yl)-carbamic acid tertbutyl 
ester 
III/35c2 2.2:912 
33745 C10H13ClOSi 
212.75 
O (4-Chloro-phenyl)-trimethylsilanylmethanone 
III/35e 2.2.1:1190 
Si 
Cl 
33746 C10H13ClO2S 
232.73 O C10H13ClO2S III/35e 2.2.5:4257 
S 
O 
Cl 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33747 C10H13Cl2N 
218.12 
33748 C10H13DN2O 
179.24 
33749 C10H13FO 
168.21 
33750 C10H13F6NO2S 
325.27 
33751 C10H13N 
147.22 
33752 C10H13N 
147.22 
33753 C10H13N 
147.22 
33754 C10H13N 
147.22 
33755 C10H13N 
147.22 
91-61-2 
33756 C10H13N 
147.22 
28712-62-1 
33757 C10H13N 
147.22 
1612-65-3 
33758 C10H13N 
147.22 
HCl 
CH3 
Cl 
NH 
Cl+ 
O 
NH 
D 
N 
OH 
F 
O 
O 
F3C 
CF3 
N 
S 
(E/Z) 
N CH3 
CH3 
Ph 
(E/Z) 
N 
C3H7 
Ph 
CH3 
N 
Ph 
CH3 
Ph 
NH 
H3C 
NH 
H3C 
N 
CH3 
N 
CH3 
N 
CH3 
N 
+ 
HCl 
CH3 
NH 
(R,S)-6-Chloro-4-methyl-1,2,3,4-tetrahydro-
isoquinoline with hydrochloric acid 
III/35c2 2.2:913 
N-(3-Deutero-pyridin-2-yl)-2,2-dimethyl-
propionamide 
III/35c2 2.2:914 
4-tert-Butyl-2-fluoro-phenol III/35b 2.2:989 
C10H13F6NO2S III/35b 2.2:991 
C10H13N III/35b 3.2:1223 
C10H13N III/35b 3.2:1225 
[2-Methyl-prop-(E)-ylidene]-phenyl-amine III/35b 3.2:1226 
C10H13N III/35b 3.2:1224 
6-Methyl-1,2,3,4-tetrahydroquinoline; 
Quinoline, 1,2,3,4-tetrahydro-6-methyl-; 
1,2,3,4-Tetrahydro-6-methylquinoline 
III/35c2 2.2:916 
3-Methyl-5,6,7,8-tetrahydro-quinoline; 
Quinoline, 5,6,7,8-tetrahydro-3-methyl-; 
5,6,7,8-Tetrahydro-3-methylquinoline 
III/35c2 2.2:918 
2-Methyl-1,2,3,4-tetrahydro-isoquinoline III/35c2 2.2:919 
(R,S)-6-Methyl-5,6,7,8-tetrahydro-quinoline III/35c2 2.2:915 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33759 C10H13N 
147.22 
(S)-1-Methyl-1,2,3,4-tetrahydro-isoquinoline III/35c2 2.2:917 
NH 
CH3 
33760 C10H13N 
147.22 
5H-Cyclohepta[b]pyridine, 6,7,8,9-
tetrahydro-; 
III/35b 3.2:1227 
7197-96-8 6,7,8,9-Tetrahydro-5H-
N cyclohepta[b]pyridine 
33761 C10H13NO 
163.22 
C10 H13 N1 O1 III/35b 3.2:1228 
33762 C10H13NO 
163.22 
18925-69-4 Ph 
O 
N 
CH3 
CH3 N,N-Dimethyl-2-phenyl-acetamide; 
N,N-Dimethylphenylacetamide; 
Phenyl-acetic acid dimethylamide 
III/35e 2.2.1:1191 
33763 C10H13NO 
163.22 
14062-78-3 
H3C 
N 
CH3 
O 
CH3 
Benzamide, N,N,4-trimethyl-; 
p-Toluamide, N,N-dimethyl-; 
4,N,N-Trimethyl-benzamide 
III/35e 2.2.1:1192 
33764 C10H13NO 
163.22 
2198-53-0 
O 
NH CH3 
CH3 
CH3 Acetamide, N-(2,6-dimethylphenyl)-; 
2',6'-Acetoxylidide; 
N-(2,6-Dimethyl-phenyl)-acetamide 
III/35e 2.2.1:1194 
33765 C10H13NO 
163.22 
O 
CH3 
CH3 
CH3H2N 
1-(4-Amino-2,6-dimethyl-phenyl)-ethanone III/35e 2.2.1:1195 
33766 C10H13NO 
163.22 
OH 
N CH3 
CH3 
2-[Isopropylimino-methyl]-phenol III/35e 2.2.2:2895 
33767 C10H13NO 
163.22 
92-53-5 
O 
N 
Ph 
Morpholine, 4-phenyl-; 
Morpholinobenzene; 
(4-Morpholinyl)benzene; 
4-Phenylmorpholine 
III/35c2 2.2:920 
33768 C10H13NOS 
195.28 
CH3 
N 
OS 
4,4-Dimethyl-2-(3-methyl-thiophen-2-yl)-
4,5-dihydro-oxazole 
III/35c2 2.2:921 
33769 C10H13NOS 
195.28 
S CH3 Thioacetic acid S-(4-dimethylamino-phenyl) 
ester 
III/35e 2.2.1:1197 
N 
OH3C 
CH3 
33770 C10H13NOS 
195.28 
O 
Ph 
S 
(E,Z)-(2-Methanesulfinyl-vinyl)-methyl-
phenyl-amine 
III/35e 2.2.5:4258 
CH3 
NH3C 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33771 C10H13NOS 
195.28 S 
NH 
OH3C 
Ph 
Benzyl-((Z)-2-methanesulfinyl-vinyl)-amine III/35e 2.2.5:4259 
33772 C10H13NOS 
195.28 
OS 
N 
C10H13NOS III/35e 2.2.5:4260 
33773 C10H13NOS 
195.28 
25771-25-9 
S 
N 
CH3 
O 
CH3H3C 
N,N-Dimethyl-4-methylsulfanyl-benzamide III/35e 2.2.1:1196 
33774 C10H13NO2 
179.22 
CH3 
O 
((E)-4-Propenyl)-1H-pyrrole-2-carboxylic 
acid ethyl ester 
III/35c2 2.2:922 
H5C2 NH 
O 
33775 C10H13NO2 
179.22 
O 
NH O 
CH3 
H3C 
CH3 
(2,3-Dimethyl-phenyl)-carbamic acid methyl 
ester 
III/35e 2.2.1:1199 
33776 C10H13NO2 
179.22 NH O 
CH3 (2,4-Dimethyl-phenyl)-carbamic acid methyl 
ester 
III/35e 2.2.1:1200 
CH3 
O 
H3C 
33777 C10H13NO2 
179.22 
NH OH3C 
CH3 
(2,5-Dimethyl-phenyl)-carbamic acid methyl 
ester 
III/35e 2.2.1:1201 
O 
CH3 
33778 C10H13NO2 
179.22 NH O 
CH3 (2,6-Dimethyl-phenyl)-carbamic acid methyl 
ester 
III/35e 2.2.1:1202 
CH3 
O 
CH3 
33779 C10H13NO2 
179.22 
31601-41-9 O 
NH CH3 
CH3O 
H3C 
Acetamide, N-(4-methoxy-2-methylphenyl)-
; 
N-(4-Methoxy-2-methyl-phenyl)-acetamide; 
N-(4-methoxy-2-methylphenyl)acetamide 
III/35e 2.2.1:1203 
33780 C10H13NO2 
179.22 
7291-00-1 
CH3 
N 
CH3 
O 
O 
H3C 
p-Anisamide, N,N-dimethyl-; 
Benzamide, 4-methoxy-N,N-dimethyl-; 
4-Methoxy-N,N-dimethyl-benzamide 
III/35e 2.2.1:1204 
33781 C10H13NO2 
179.22 
Benzene, 1-(1,1-dimethylethyl)-2-nitro-; 
2-Nitro-tert-butylbenzene; 
III/35e 2.2.3:3591 
1886-57-3 1-tert-Butyl-2-nitro-benzene 
NO2 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33782 C10H13NO2 
179.22 
16518-64-2 H3C O 
CH3 
OCH3 
N 
3-Dimethylamino-benzoic acid methyl 
ester; 
Methyl 3-dimethylaminobenzoate 
III/35e 2.2.1:1205 
33783 C10H13NO2 
179.22 
OH3C 1-(3-Methoxymethyl-2-methyl-pyridin-4-yl)-
ethanone 
III/35c2 2.2:923 
CH3O 
CH3N 
33784 C10H13NO2S 
211.28 
5033-22-7 
N S 
Ph 
O 
O 
1-Benzenesulfonyl-pyrrolidine; 
1-(Phenylsulfonyl)pyrrolidine 
III/35b 3.2:1229 
33785 C10H13NO2S 
211.28 
O 
O 
S 
NH 
Ph ((R,S)-1,1-Dioxo-tetrahydro-1.6-thiophen-3-
yl)-phenyl-amine 
III/35e 2.2.5:4261 
+ 
O 
O 
S 
NH 
Ph 
33786 C10H13NO3 
195.22 
H5C2 
O 
C2H5O 
O 
N 
2,6-Diethoxy-pyridine-3-carbaldehyde III/35c2 2.2:924 
33787 C10H13NO3Si 
223.3 
O (4-Nitro-phenyl)-trimethylsilanyl-methanone III/35e 2.2.1:1207; 
III/35e 2.2.3:3592 
Si 
O2N 
33788 C10H13NO4 
211.22 
O 
O 
H3C 
O 
C2H5 
O 
4-Acetoxy-1-methyl-1H-pyrrole-3-carboxylic 
acid ethyl ester 
III/35c2 2.2:926 
N 
CH3 
33789 C10H13NO4 
211.22 
O O CH3 
O 
H3C 
O 
H5C2 NH 
2-Ethyl-1H-pyrrole-3,4-dicarboxylic acid 
dimethyl ester 
III/35c2 2.2:927 
33790 C10H13NO4 
211.22 
O OH5C2 
O 
C2H5 
O 
NH 
1H-Pyrrole-3,4-dicarboxylic acid diethyl 
ester 
III/35c2 2.2:928 
33791 C10H13NO4 
211.22 
OO 
H3C 
O 
CH3O 
1-Methyl-1,4-dihydro-pyridine-3,5-
dicarboxylic acid dimethyl ester 
III/35c2 2.2:925 
N 
CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33792 C10H13NP2 
209.16 
P 
P 
CH3 
N 
CH3 
CH3 
Dimethyl-(1-methyl-1H-
benzo[1,3]diphosphol-2-yl)-amine 
III/35a 3.2:904 
33793 C10H13NS 
179.28 CH3 
N 
S 
CH3 
N 
S 
+ 
(R,S)-3-Ethyl-2-methyl-2,3-dihydro-
benzothiazole 
III/35c2 2.2:929 
C2H5 C2H5 
33794 C10H13N2 
161.22 N(+) 
Ph 1-Methyl-1-phenyl-4,5-dihydro-1H-pyrazol-
1-ium 
III/35b 3.2:1230 
N 
33795 C10H13N2OPS2 
272.33 
CH3 
O 
S 
S 
NH 
P 
N 
2-(4-Methoxy-phenyl)-1-methyl-2-thioxo-
2.5-[1,3,2]diazaphospholidine-4-thione 
III/35c2 2.2:930 
CH3 
33796 C10H13N2PS3 
288.39 CH3 
S 
N 
1,3-Dimethyl-2-methylsulfanyl-2-thioxo-2,3-
dihydro-1H-2.5-
benzo[1,3,2]diazaphosphinine-4-thione 
III/35c2 2.2:931 
SP 
N 
CH3S 
CH3 
33797 C10H13N3 
175.23 
C2H5NH 
NH 
N (1H-Benzoimidazol-2-ylmethyl)-ethyl-amine III/35c2 2.2:932 
33798 C10H13N3 
175.23 
NH 
N 
N 
6-tert-Butyl-5H-pyrrolo[2,3-b]pyrazine III/35c2 2.2:933 
33799 C10H13N3O 
191.23 N 
H3C 
N CH3 
N 
CH3 
O C10H13N3O III/35b 3.2:1231 
33800 C10H13N3O2 
207.23 N 
N 
O C10H13N3O2 III/35b 3.2:1232 
N CH3 
O CH3 
H3C 
33801 C10H13N3O2 
207.23 
CN 2-(2,2-Dimethoxy-ethylamino)-nicotinonitrile III/35c2 2.2:935 
O 
CH3NHN 
O 
CH3 
33802 C10H13N3O2 
207.23 NO2 
N 
N 
5'-Nitro-3,4,5,6-tetrahydro-2H-
[1,2']bipyridinyl 
III/35c2 2.2:934 
33803 C10H13N3O4 
239.23 
O2N 
NH 
NO2 
tert-Butyl-(2,4-dinitro-phenyl)-amine III/35e 2.2.3:3593 
33804 C10H13N5O3 
251.24 
See appendix No: 33804 C10H13N5O3 III/35b 3.2:1233 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33805 C10H13N5O4 
267.24 
NH2 C10H13N5O4 III/35b 3.2:1234 
N N 
N NO 
HO 
HO OH 
33806 C10H13OPS 
212.25 
S 
P 
O 
Ph 
2-Phenyl-[1,2]thiaphosphinane 2-oxide III/35a 3.2:905 
33807 C10H13O2P 
196.18 P 
O 
O 
Ph 
CH3 
(2S,4R)-2-Benzyl-4-methyl-
[1,3,2]dioxaphospholane 
III/35a 3.2:906 
33808 C10H13O2P 
196.18 P 
O 
O 
Ph 
CH3 
(2S,4S)-2-Benzyl-4-methyl-
[1,3,2]dioxaphospholane 
III/35a 3.2:907 
33809 C10H13O2PS 
228.25 
O CH3 2-Methyl-5-phenyl-[1,3,5]dioxaphosphinane 
5-sulfide 
III/35a 3.2:900, 
901 
P OPh 
S 
33810 C10H13O3PS 
244.25 
O 
P 
OO 
S 
Ph 
2-Phenyl-[1,3,6,2]trioxaphosphocane 2sulfide 
III/35a 3.2:908 
33811 C10H13O4P 
228.18 O O CH3 
H3C Dimethyl 4-methylbenzoylphosphonate; 
(4-Methyl-benzoyl)-phosphonic acid 
III/35e 2.2.4:3784 
33493-30-0 P 
O 
CH3 
dimethyl ester 
O 
33812 C10H13O4P 
228.18 
O 
P 
O 
O 
Ph 
H3C 
O 
O 
P 
O 
O 
Ph 
H3C 
O+ 
(2S*,4R*)-4-Methyl-2-phenoxy-
[1,3,2]dioxaphosphinane 2-oxide 
III/35e 2.2.4:3785 
33813 C10H13O4P 
228.18 
O 
P 
O 
O 
Ph 
H3C 
O 
O 
P 
O 
O 
Ph 
H3C 
O+ 
(2R*,4R*)-4-Methyl-2-phenoxy-
[1,3,2]dioxaphosphinane 2-oxide 
III/35e 2.2.4:3786 
33814 C10H13O5P 
244.18 
O 
P 
O O CH3 
O 
CH3 
O 
H3C 
(4-Methoxy-benzoyl)-phosphonic acid 
dimethyl ester 
III/35e 2.2.4:3787 
33815 C10H13Ta 
314.16 
(-) (-) 
Ta(2+)H 
H 
H C10H13Ta III/35c4 2.2:1025 
33816 C10H14BNO2 
191.03 
ON 
B 
O 3-(5,5-Dimethyl-[1,3,2]dioxaborinan-2-yl)pyridine 
III/35c4 2.2:1026 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33817 C10H14B2F4N4 
287.86 
(delocalized system) 
N(+)N(+) 
B(-) 
F FH3C CH3 
C10H14B2F4N4 III/35a 2.2:913 
NN 
B(-) 
F F CH3H3C 
33818 C10H14BrN 
228.13 
CH3 
N 
CH3 (4-Bromo-2,6-dimethyl-phenyl)-dimethyl-
amine 
III/35b 3.2:1235 
CH3 
Br CH3 
33819 C10H14BrNO2S2 
324.26 
Br(-) 
O 
H5C2 O 
H5C2 
S S 
N(+) 
6-Ethoxycarbonyl-5-ethyl-2,3-dihydro-
thiazolo[2,3-b]thiazol-4-ylium bromide 
III/35c2 2.2:936 
33820 C10H14Br4O2P2 
547.78 P 
O Br 
Br 
C10H14Br4O2P2 III/35e 2.2.4:3788 
O 
P 
Br Br 
33821 C10H14ClNO5 
263.68 
O 
C2H5 
O 
O 
Cl 
H3C 
O 
O 
N 
O 
C2H5 
O 
O 
Cl 
H3C 
O 
O 
N+ 
(R,S)-2-Chloromethyl-1-
ethoxycarbonylmethyl-4-oxo-azetidine-2-
carboxylic acid methyl ester 
III/35c2 2.2:937 
33822 C10H14ClNO5S 
295.74 
O 
CH3 
H3C 
O 
O S 
Cl N 
2-((2R,3S)-3-Chloro-2-methanesulfonyl-4-
oxo-azetidin-1-yl)-3-methyl-but-2-enoic acid 
methyl ester 
III/35c2 2.2:938 
OO 
CH3 
33823 C10H14ClO3P 
248.64 
2373-43-5 
P 
O 
O 
C2H5 
O 
C2H5 
Cl 
(4-Chloro-phenyl)-phosphonic acid diethyl 
ester 
III/35e 2.2.4:3789 
33824 C10H14Cl2Te 
332.72 Ph 
Te C4H9 
Cl C10H14Cl2Te III/35c4 2.2:1027 
Cl 
33825 C10H14Cl2Te 
332.72 Ph 
Te 
Cl 
Cl 
C2H5 
CH3 
Ph 
Te 
Cl 
Cl 
C2H5 
CH3 
+ 
C10H14Cl2Te III/35c4 2.2:1028 
33826 C10H14Cl4N3OP3 
426.97 
Cl 
Cl 
Cl 
P 
NP 
N N 
P 
Cl OH 
Ph 
H3C CH3 
Cl 
Cl 
Cl 
P 
NP 
N N 
P 
Cl OH 
Ph 
H3C CH3 
+ 
(R,S)-Phenyl-(4,4,6,6-tetrachloro-2-
isopropyl-2.5,4.5,6.5-
[1,3,5,2,4,6]triazatriphosphinin-2-yl)methanol 
III/35a 3.2:909 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33827 C10H14Cl4O2P2 
369.98 P 
O Cl 
Cl 
C10H14Cl4O2P2 III/35e 2.2.4:3790 
O 
P 
Cl Cl 
33828 C10H14FN 
167.22 
CH3 
N 
CH3 (4-Fluoro-2,6-dimethyl-phenyl)-dimethyl-
amine 
III/35b 3.2:1236 
CH3 
F CH3 
33829 C10H14FO2P 
216.19 Ph 
O 
P 
F 
O 
C4H9 
Phosphorofluoridous acid butyl ester 
phenyl ester 
III/35a 3.2:910 
33830 C10H14F2NP 
217.19 
N F 
C4H9 C10H14F2NP III/35a 3.2:911 
Ph P 
F 
33831 C10H14F2Te 
299.81 Ph 
Te 
F 
F 
C2H5 
CH3 
Ph 
Te 
F 
F 
C2H5 
CH3 
+ 
C10H14F2Te III/35c4 2.2:1029 
33832 C10H14F4O4 
274.21 
H3C 
O 
O 
F F 
F F 
O 
O 
CH3 
2,2,7,7-Tetrafluoro-octanedioic acid 
dimethyl ester 
III/35b 2.2:992 
33833 C10H14GeO 
222.86 Ph 
O 
Ge 
Phenyl-trimethylgermanyl-methanone III/35e 2.2.1:1208 
33834 C10H14INO2 
307.13 
O 
C2H5O 
C2H5 
H3C 
I NH 
3-Ethyl-5-iodo-4-methyl-1H-pyrrole-2-
carboxylic acid ethyl ester 
III/35c2 2.2:939 
33835 C10H14MoO6 
326.15 
(unknown ligand positions) 
CH3 
O(-)O 
H3C 
C10H14MoO6 III/35e 2.2.7:4728 
Mo(2+)O O 
O 
CH3 
O(-) 
H3C 
33836 C10H14MoO7 
342.15 
(unknown ligand positions) 
CH3 
O(-)O 
H3C 
O 
C10H14MoO7 III/35e 2.2.7:4729 
Mo(2+)O 
O 
CH3 
O(-) 
H3C 
O 
33837 C10H14Mo2O9 
470.09 
(unknown ligand positions) 
Mo(+) 
O 
CH3 
CH3 
O(-) 
O(-) 
OH3C 
CH3 
O 
O 
O 
Mo(+) 
O 
O 
C10H14Mo2O9 III/35e 2.2.7:4730 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33838 C10H14NO2P 
211.2 
N 
OPHO 
Ph 8-Phenyl-tetrahydro-8.5-
[1,3,2]oxazaphospholo[2,3-
b][1,3,2]oxazaphosphole 
III/35a 3.2:912 
33839 C10H14NO2PS 
243.26 
PO 
O 
CH3 
S 
NH 
Ph + 
PO 
O 
CH3 
S 
NH 
Ph 
C10H14NO2PS III/35b 3.2:1237 
33840 C10H14NO2PS 
243.26 
PO 
O 
CH3 
S 
NH 
Ph + 
PO 
O 
CH3 
S 
NH 
Ph 
C10H14NO2PS III/35b 3.2:1238 
33841 C10H14NO2PSe 
290.16 
P 
O 
O 
Se 
Ph 
CH3 
NH 
+ 
P 
O 
O 
Se 
Ph 
CH3 
NH 
((2S*,4S*)-4-Methyl-2-selenoxo-2.5-
[1,3,2]dioxaphosphinan-2-yl)-phenyl-amine 
III/35a 3.2:913; 
III/35b 3.2:1240 
33842 C10H14NO2PSe 
290.16 
P 
O 
O 
Se 
Ph 
CH3 
NH 
+ 
P 
O 
O 
Se 
Ph 
CH3 
NH 
((2R*,4S*)-4-Methyl-2-selenoxo-2.5-
[1,3,2]dioxaphosphinan-2-yl)-phenyl-amine 
III/35a 3.2:914; 
III/35b 3.2:1239 
33843 C10H14NO3P 
227.2 
P 
O 
O 
O 
Ph 
CH3 
NH 
+ 
P 
O 
O 
O 
Ph 
CH3 
NH 
((2S*,4S*)-4-Methyl-2-oxo-2.5-
[1,3,2]dioxaphosphinan-2-yl)-phenyl-amine 
III/35a 3.2:915; 
III/35b 3.2:1242 
33844 C10H14NO3P 
227.2 
P 
O 
O 
O 
Ph 
CH3 
NH 
+ 
P 
O 
O 
O 
Ph 
CH3 
NH 
((2R*,4S*)-4-Methyl-2-oxo-2.5-
[1,3,2]dioxaphosphinan-2-yl)-phenyl-amine 
III/35a 3.2:916; 
III/35b 3.2:1241 
33845 C10H14NO5P 
259.2 
O 
C2H5 
C2H5 
NO2 
P 
O O (2-Nitro-phenyl)-phosphonic acid diethyl 
ester 
III/35e 2.2.3:3598; 
III/35e 2.2.4:3791 
33846 C10H14N2 
162.23 
N 
H3C 
CH3 
N 
CH3 
C10H14N2 III/35b 3.2:1243 
33847 C10H14N2 
162.23 N 
N 
H3C 
CH3 
(4-Aziridin-1-yl-phenyl)-dimethyl-amine III/35b 3.2:1247 
33848 C10H14N2 
162.23 
N 
N 
CH3 
+ 
N 
N 
CH3 
2-((R,S)-1-Methyl-pyrrolidin-2-yl)-pyridine III/35b 3.2:1244 
33849 C10H14N2 
162.23 N 
NCH3 
+ N 
NCH3 
4-((R,S)-1-Methyl-pyrrolidin-2-yl)-pyridine III/35b 3.2:1246 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33850 C10H14N2 
162.23 
N 
N 
4-Cyclohexyl-pyrimidine III/35c2 2.2:940 
33851 C10H14N2O 
178.23 
NH CH3 
N 
OH3C 
CH3 
N-(4-Dimethylamino-phenyl)-acetamide III/35b 3.2:1248 
33852 C10H14N2O 
178.23 
O 
NH 
CH3 
4-Dimethylamino-N-methyl-benzamide III/35e 2.2.1:1209 
N 
H3C 
CH3 
33853 C10H14N2O 
178.23 
H3C CH3 C10H14N2O III/35e 2.2.3:3594 
Ph N O 
N 
33854 C10H14N2O 
178.23 
CH3 
N O 
CH3 C10H14N2O III/35e 2.2.3:3595 
N 
H3C CH3 
33855 C10H14N2O 
178.23 O 
NHN 
2,2-Dimethyl-N-pyridin-2-yl-propionamide III/35c2 2.2:941 
33856 C10H14N2OS 
210.3 
NHNH 
C2H5 
S 
O 
H3C 
1-Ethyl-3-(3-methoxy-phenyl)-thiourea III/35b 3.2:1249 
33857 C10H14N2OS 
210.3 
NHNH 
C2H5 
1-Ethyl-3-(4-methoxy-phenyl)-thiourea III/35b 3.2:1250 
SH3C 
O 
33858 C10H14N2O2 
194.23 
CH3 
N 
CH3 (2,6-Dimethyl-4-nitro-phenyl)-dimethyl-
amine 
III/35b 3.2:1251 
CH3 
O2N CH3 
33859 C10H14N2O2 
194.23 
NH tert-Butyl-(2-nitro-phenyl)-amine III/35e 2.2.3:3596 
NO2 
33860 C10H14N2O2 
194.23 
2216-15-1 
N 
H5C2 
H5C2 
NO2 
Diethyl-(4-nitro-phenyl)-amine; 
N,N-Diethyl-4-nitroaniline 
III/35e 2.2.3:3597 
33861 C10H14N2O2 
194.23 
O Octahydro-dipyrrolo[1,2-a;1',2'-d]pyrazine-
5,10-dione 
III/35e 2.2.1:1210 
N 
N 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33862 C10H14N2O2S 
226.29 
CH3 3-Isopropyl-3,4-dihydro-1H-
benzo[1,2,6]thiadiazine 2,2-dioxide 
III/35c2 2.2:942 
CH3N 
OS 
NH 
O 
33863 C10H14N2O4 
226.23 
COOH 
NH 
HOOC 
NH2 
3-(5-Aminomethyl-4-carboxymethyl-1H-
pyrrol-3-yl)-propionic acid 
III/35b 3.2:1253 
33864 C10H14N2O4 
226.23 
OOH3C CH3 
OO 
1-Isopropyl-1H-pyrazole-3,4-dicarboxylic 
acid dimethyl ester 
III/35c2 2.2:943 
N 
N 
CH3H3C 
33865 C10H14N2O4 
226.23 
N 
NO 
O 
CH3 
H3C 
O 
O 
CH3 
3-(1,3-Dimethyl-2,4-dioxo-1,2,3,4-
tetrahydro-pyrimidin-5-yl)-propionic acid 
methyl ester 
III/35e 2.2.1:1212 
33866 C10H14N2O4 
226.23 
N 
O 
H3C COOH 
3-(1,3,6-Trimethyl-2,4-dioxo-1,2,3,4-
tetrahydro-pyrimidin-5-yl)-propionic acid 
III/35e 2.2.1:1213 
NO CH3 
CH3 
33867 C10H14N2O4 
226.23 
See appendix No: 33867 5-Allyl-5-((R,S)-2-hydroxy-propyl)-
pyrimidine-2,4,6-trione 
III/35b 3.2:1252 
33868 C10H14N2O4 
226.23 N 
NO 
O 
CH3 
H3C COOH 
CH3 
N 
NO 
O 
CH3 
H3C COOH 
CH3 
+ 
(R,S)-3-(1,3-Dimethyl-2,4-dioxo-1,2,3,4-
tetrahydro-pyrimidin-5-yl)-butyric acid 
III/35e 2.2.1:1211 
33869 C10H14N2O4S2 
290.36 S 
N 
O 
O 
S 
NH2 
4-(1,1-Dioxo-1.6-[1,2]thiazinan-2-yl)benzenesulfonamide 
III/35b 3.2:1254 
O 
O 
33870 C10H14N2S 
194.3 
2741-13-1 NNH 
CH3 
CH3 1,1-Dimethyl-3-(p-tolyl)thiourea III/35b 3.2:1255 
S 
H3C 
33871 C10H14N2S 
194.3 
NHNH 
C2H5 
S 
H3C 1-Ethyl-3-m-tolyl-thiourea III/35b 3.2:1256 
33872 C10H14N2S 
194.3 
NHNH 
C2H5 
1-Ethyl-3-p-tolyl-thiourea III/35b 3.2:1257 
S 
H3C 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33873 C10H14N2S 
194.3 
15093-36-4 
NHNH 
Ph 
S 
CH3 
CH3 
1-Isopropyl-3-phenyl-thiourea; 
N-Phenyl-N'-isopropylthiourea; 
Thiourea, N-(1-methylethyl)-N'-phenyl-; 
Urea, 1-isopropyl-3-phenyl-2-thio- 
III/35b 3.2:1258 
33874 C10H14N6 
218.26 
C3H7NH 
(3,7-Dimethyl-pyrimido[5,4-e][1,2,4]triazin-
5-yl)-propyl-amine 
III/35c2 2.2:944 
H3C N 
N 
N 
CH3N N 
33875 C10H14Ni 
192.91 
(-) 
(delocalized system) 
Ni(2+) 
CH2(-) 
1,1-Dimethylallyl-cyclopentadienyl-nickel III/35c4 2.2:1030 
33876 C10H14Ni 
192.91 
(-) 
(delocalized system) 
Ni(2+) 
CH(-) 
CH3 
CH3 
1,3-Dimethylallyl-cyclopentadienyl-nickel 
(E) 
III/35c4 2.2:1031 
33877 C10H14Ni 
192.91 
(-) 
(delocalized system) 
Ni(2+) 
CH(-) 
CH3 
1,3-Dimethylallyl-cyclopentadienyl-nickel 
(Z) 
III/35c4 2.2:1032 
H3C 
33878 C10H14Ni 
192.91 
(-) 
(delocalized system) 
Ni(2+) 
CH2(-) 
CH3 
1,2-Dimethylallyl-cyclopentadienyl-nickel 
(E) 
III/35c4 2.2:1033 
33879 C10H14Ni 
192.91 
(-) 
(delocalized system) 
Ni(2+) 
CH2(-) 
H3C 
1,2-Dimethylallyl-cyclopentadienyl-nickel 
(Z) 
III/35c4 2.2:1034 
33880 C10H14O 
150.22 
O 
((Z)-2-Hex-1-enyl)-furan III/35c2 2.2:945 
H9C4 
33881 C10H14O 
150.22 
CH3 
CH3CH3 3-Methyl-2-(3-methyl-but-2-enyl)-furan III/35c2 2.2:946 
O 
33882 C10H14O 
150.22 
4170-90-5 OH 
CH3 Benzenemethanol, 2,4,6-trimethyl-; 
Benzyl alcohol, 2,4,6-trimethyl-; 
(2,4,6-Trimethyl-phenyl)-methanol; 
2,4,6-Trimethylbenzyl alcohol 
III/35e 2.2.2:2901 
H3C CH3 
33883 C10H14O 
150.22 O 
CH3 
+ O 
CH3 
(1S*,6R*)-3,7,7-Trimethyl-
bicyclo[4.1.0]hept-3-en-2-one 
III/35e 2.2.1:1214 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33884 C10H14O 
150.22 
O CH3 O 
+ 
CH3 
(1R*,6S*)-4,7,7-Trimethyl-
bicyclo[4.1.0]hept-3-en-2-one 
III/35e 2.2.1:1215 
33885 C10H14O 
150.22 O 
(1S*,5R*)-6,6-Dimethyl-bicyclo[3.1.1]hept-
2-ene-2-carbaldehyde 
III/35e 2.2.1:1216 
+ 
O 
33886 C10H14O 
150.22 
O 
H2C 
O 
H2C 
+ 
(1S*,5S*)-6,6-Dimethyl-2-methylene-
bicyclo[3.1.1]heptan-3-one 
III/35e 2.2.1:1217 
33887 C10H14O 
150.22 CH2 CH2 
(1R*,4S*)-1,4-Dimethyl-2,3-dimethylene-7-
oxa-bicyclo[2.2.1]heptane 
III/35e 2.2.2:2902 
O O+ 
CH2 CH2 
33888 C10H14OS 
182.28 
Ph C4H9 
S 
O (Butane-1-sulfinyl)-benzene III/35e 2.2.5:4262 
33889 C10H14OS 
182.28 Ph 
C3H7 
S 
O (Propane-1-sulfinylmethyl)-benzene III/35e 2.2.5:4265 
33890 C10H14OS 
182.28 Ph 
O 
CH3S 
CH3 
(Propane-2-sulfinylmethyl)-benzene III/35e 2.2.5:4266 
33891 C10H14OS 
182.28 H3C 
O 
C3H7 
S 
1-Methyl-4-(propane-1-sulfinyl)-benzene III/35e 2.2.5:4267 
33892 C10H14OS 
182.28 
H3C 
O 
CH3S 
CH3 
1-Methyl-4-(propane-2-sulfinyl)-benzene III/35e 2.2.5:4268 
33893 C10H14OS 
182.28 
4170-71-2 
Ph 
O 
S 
(2-Methyl-propane-2-sulfinyl)-benzene; 
tert-butyl phenyl sulfoxide 
III/35e 2.2.5:4264 
33894 C10H14OS 
182.28 
22456-89-9 Ph 
O CH3 
CH3 
S 
(2-Methyl-propane-1-sulfinyl)-benzene III/35e 2.2.5:4263 
33895 C10H14OSe 
229.18 
H3C 
CH3 
Se 
O 
Ph 
C10H14OSe III/35c4 2.2:1035 
33896 C10H14OSi 
178.3 Ph Si 
Benzoyl(trimethyl)silane; 
Phenyl-trimethylsilanyl-methanone; 
III/35e 2.2.1:1219 
5908-41-8 Phenyl trimethylsilyl ketone; 
O Trimethylbenzoylsilane 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33897 C10H14O2 
166.22 
CH3 
CH3 
O 
O 2,2-Dimethyl-5-((E)-1-methyl-propenyl)-
furan-3-one 
III/35c2 2.2:947 
33898 C10H14O2 
166.22 
C2H5 
O 
1-Ethyl-2,3-dimethoxy-benzene III/35e 2.2.2:2903 
CH3 
O 
CH3 
33899 C10H14O2 
166.22 
O O 
CH3 
3-Acetyl-bicyclo[3.2.1]octan-2-one III/35e 2.2.1:1220 
33900 C10H14O2 
166.22 
O 
O 
4-Oxa-tricyclo[4.3.1.13,8]undecan-5-one III/35e 2.2.1:1221 
33901 C10H14O2P2 
228.16 
O 
P 
O 
P 
3,10-Dimethyl-3,10-diphospha-
tricyclo[5.2.1.02,6]deca-4,8-diene 3,10-
dioxide 
III/35a 3.2:917 
33902 C10H14O2S 
198.28 
34009-07-9 
OO 
CH3 
S 
Ph 
CH3 i-Butylphenylsulfone; 
Isobutyl phenyl sulphone; 
Isobutylphenylsulfone; 
(2-Methyl-propane-1-sulfonyl)-benzene 
III/35e 2.2.5:4270 
33903 C10H14O2S 
198.28 
H3C CH3 
CH3 
O 
S 
O 
CH3 2,4,6-Trimethyl-benzenesulfinic acid methyl 
ester 
III/35e 2.2.5:4273 
33904 C10H14O2S 
198.28 
4170-72-3 
OO 
S 
Ph 
(2-Methyl-propane-2-sulfonyl)-benzene; 
tert-Butyl-phenyl sulfone 
III/35e 2.2.5:4272 
33905 C10H14O2S 
198.28 
34009-06-8 
OO 
C2H5S 
Ph 
CH3 
OO 
C2H5S 
Ph 
CH3 
+ 
((R,S)-Butane-2-sulfonyl)-benzene; 
(R,S)-[(1-Methylpropyl)sulfonyl]-benzene; 
Phenyl sec-butyl sulfone; 
Sulfone, sec-butyl phenyl 
III/35e 2.2.5:4271, 
4277 
33906 C10H14O2Si 
194.3 
2078-12-8 Ph 
O 
O 
Si 
Benzoic acid trimethylsilyl ester; 
Benzoyloxytrimethylsilane; 
Silanol, trimethyl-, benzoate; 
Trimethylsilyl benzoate 
III/35e 2.2.1:1222 
33907 C10H14O3 
182.22 
O 
H5C2 
O 
C2H5 
H3C O 
5-Ethyl-2-methyl-furan-3-carboxylic acid 
ethyl ester 
III/35c2 2.2:948 
33908 C10H14O3 
182.22 
O 
H3C 
O 
H3C O 
2,6,6-Trimethyl-6H-pyran-3-carboxylic acid 
methyl ester 
III/35c2 2.2:950 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33909 C10H14O3 
182.22 C2H5 
O 
O 
O 
C2H5 
O 
O 
O 
+ 
(R,S)-2-Ethoxy-3,5,6,7-tetrahydro-2H-
benzofuran-4-one 
III/35c2 2.2:949 
33910 C10H14O3S 
214.28 
O 
H5C2 
O 
CH3 
S 
1,3-Dimethyl-1-oxo-1.6-thiopyran-4-
carboxylic acid ethyl ester 
III/35c2 2.2:951 
O 
33911 C10H14O4 
198.22 
O 
O C2H5 
O 
O O 
O C2H5 
O 
O 
+ 
Oxo-((R,S)-2-oxo-cyclohexyl)-acetic acid 
ethyl ester 
III/35e 2.2.1:1223 
33912 C10H14O4 
198.22 
O 
C2H5O 
O 
O 
6,6-Dimethyl-4-oxo-5,6-dihydro-4H-pyran-
3-carboxylic acid ethyl ester 
III/35c2 2.2:952 
33913 C10H14O4S 
230.28 
O 
C2H5O 
O 
S O 
C2H5O 
O 
S+ 
(R,S)-2-Acetyl-3-oxo-tetrahydro-thiopyran-
2-carboxylic acid ethyl ester 
III/35c2 2.2:953 
CH3 
O 
CH3 
O 
33914 C10H14O5 
214.22 O 
H5C2 O O 
CH3 
O 
H3C O 
O 
H5C2 O O 
CH3 
O 
H3C O 
+ 
Propionic acid (R,S)-5-methoxy-2,5-
dimethyl-4-oxo-4,5-dihydro-furan-3-yl ester 
III/35c2 2.2:954 
33915 C10H14O5S 
246.28 
O 
O 
CH3 
O 
C2H5 
OO 
S 
O 
O 
CH3 
O 
C2H5 
OO 
S 
+ 
(R,S)-3-Ethoxycarbonylmethyl-4-oxo-
tetrahydro-thiophene-3-carboxylic acid 
methyl ester 
III/35c2 2.2:955 
33916 C10H14P2S2 
260.3 
S 
P 
S 
P 
3,10-Dimethyl-3,10-diphospha-
tricyclo[5.2.1.02,6]deca-4,8-diene 3,10-
disulfide 
III/35a 3.2:918 
33917 C10H14S 
166.28 
CH3 
CH3S 
2-(4-Methyl-pent-3-enyl)-thiophene III/35c2 2.2:956 
33918 C10H14S 
166.28 CH2 
S 
3-(2,2-Dimethyl-but-3-enyl)-thiophene III/35c2 2.2:957 
33919 C10H14Se 
213.18 
Ph 
Se 
CH3 
CH3 Isobutylselanyl-benzene III/35c4 2.2:1037 
33920 C10H14Se 
213.18 Ph 
Se C2H5 
CH3 
Ph 
Se C2H5 
CH3 
+ 
((R,S)-sec-Butylselanyl)-benzene III/35c4 2.2:1038 
33921 C10H14Te 
261.82 
C3H7 
Te 
H7C3 
1-Pent-1-ynyltellanyl-pent-1-yne III/35c4 2.2:1039 
33922 C10H15BCl2 
216.94 ClH3C 
CH3 C10H15BCl2 III/35a 2.2:914 
B 
Cl 
H3C 
CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33923 C10H15BF2MnN3 
O 
296.99 
C5H4(Me)-Mn(NO)(CHNMe2)BF2 III/35a 2.2:915 
33924 C10H15BFeN2O 
245.9 
CpFe(CO)(CHNMe2)BH2 III/35a 2.2:916 
33925 C10H15BKN6 
269.18 
H3C CH3 C10H15BKN6 III/35c4 2.2:1040 
N N 
HB 
N 
N(-) K(+) 
N N 
H3C CH3 
33926 C10H15BN6Tl 
434.46 
H3C CH3 C10H15BN6Tl III/35c4 2.2:1041 
N N 
HB 
N 
N 
Tl 
N N 
H3C CH3 
33927 C10H15BSi 
174.12 
Si 
B 
CH3 C10H15BSi III/35a 2.2:917 
33928 C10H15B5Co2S2 
371.28 
6,7,8,9-(CpCo)2B5S2H5 III/35a 2.2:918 
33929 C10H15B9Co2NiO6 
505.08 
[Co2Ni(m-CO)(CO)5(h5-7,8-Me2-7,8-
C2B9H9)] 
III/35a 2.2:919 
33930 C10H15BrN2O4 
307.14 O 
O 
Br 
C2H5O 
O 
N 
NH 
O 
O 
Br 
C2H5O 
O 
N 
NH+ 
[(R,S)-1-(2-Bromo-acetyl)-3-oxo-piperazin-
2-yl]-acetic acid ethyl ester 
III/35c2 2.2:958 
33931 C10H15BrS 
247.19 
C6H13 2-Bromo-3-hexyl-thiophene III/35c2 2.2:959 
69249-61-2 
Br 
S 
33932 C10H15Br2OP 
342.01 
C10H15Br2OP III/35e 2.2.4:3792 
O 
P 
Br Br 
33933 C10H15Br2ORe 
497.24 
(-) Re(+) 
O 
Br 
C10H15Br2ORe III/35e 2.2.7:4842 
Br 
33934 C10H15ClN3O5P3 
385.62 
Cl 
OO 
O P 
N 
P 
N 
P 
N 
O O 
CH2H2C 
CH2H2C 
H2C 
2-Chloro-2,4,4,6,6-pentakis-vinyloxy-
2.5,4.5,6.5-[1,3,5,2,4,6]triazatriphosphinine 
III/35a 3.2:919 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33935 C10H15ClO 
186.68 
O 
Cl 
+ 
O 
Cl (1S*,4S*,5R*)-5-Chloro-1,3,3-trimethyl-
bicyclo[2.2.1]heptan-2-one 
III/35e 2.2.1:1224 
33936 C10H15ClO 
186.68 
Cl Cl (1R*,4R*,6S*)-6-Chloro-1,3,3-trimethyl-
bicyclo[2.2.1]heptan-2-one 
III/35e 2.2.1:1225 
+ 
O O 
33937 C10H15ClO 
186.68 
Cl Cl (1S*,4R*)-7-Chloro-1,3,3-trimethyl-
bicyclo[2.2.1]heptan-2-one 
III/35e 2.2.1:1226 
+ 
O O 
33938 C10H15ClO 
186.68 + 
(1R*,3R*,4S*)-3-Chloromethyl-1,3-
dimethyl-bicyclo[2.2.1]heptan-2-one 
III/35e 2.2.1:1227 
O O 
Cl Cl 
33939 C10H15ClO 
186.68 + 
(1R*,3S*,4S*)-3-Chloromethyl-1,3-dimethyl-
bicyclo[2.2.1]heptan-2-one 
III/35e 2.2.1:1228 
O O 
Cl Cl 
33940 C10H15ClO 
186.68 
O 
Cl 
+ 
O 
Cl (1S*,4S*)-1-Chloromethyl-3,3-dimethyl-
bicyclo[2.2.1]heptan-2-one 
III/35e 2.2.1:1229 
33941 C10H15Cl2NSi 
248.22 C2H5Si 
Ph N 
C2H5 
ClCl (Dichloro-phenyl-silanyl)-diethyl-amine III/35b 3.2:1259 
33942 C10H15Cl2OP 
253.1 
C10H15Cl2OP III/35e 2.2.4:3793 
O 
P 
Cl Cl 
33943 C10H15Cl2ORe 
408.34 
(-) Re(+) 
O 
Cl 
C10H15Cl2ORe III/35e 2.2.7:4843 
Cl 
33944 C10H15F 
154.22 
16668-83-0 
F 2-Fluoro-adamantane III/35b 2.2:993 
33945 C10H15FNOP 
215.2 
O N 
C2H5 C10H15FNOP III/35a 3.2:920 
Ph P C2H5 
F 
33946 C10H15FNP 
199.21 
Ph 
F 
P 
N 
C2H5 
C2H5 
C10H15FNP III/35a 3.2:921 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33947 C10H15FNPS 
231.27 
Ph 
F 
P 
N 
C2H5 
C2H5 
S C10H15FNPS III/35a 3.2:922 
33948 C10H15F2OP 
220.2 Ph PH 
FA C10H15F2OP III/35b 2.2:995 
O 
FA 
33949 C10H15F2ORe 
375.43 
(-) Re(+) 
O 
F 
C10H15F2ORe III/35e 2.2.7:4844 
F 
33950 C10H15F3N2 
220.24 CF3 
CH3 2,6-Dimethyl-1-(2,2,2-trifluoro-ethyl)-
piperidine-2-carbonitrile 
III/35b 2.2:996 
N 
CN 
33951 C10H15F3O 
208.22 
H3C 
CH3 OH 
FA 
FB 
FC 
(R,S)-1,1,2-Trifluoro-3,7-dimethyl-octa-1,6-
dien-3-ol 
III/35b 2.2:997 
+ 
CH3 OH FB 
H3C 
FA 
FC 
33952 C10H15F3O3 
240.22 C2H5 
OO 
CF3 
O 
H3C 
CH3 (R,S)-3,3,3-Trifluoro-2-(3-methyl-but-2-
enyloxy)-propionic acid ethyl ester 
III/35b 2.2:998 
+ 
C2H5 
OO 
CF3 
O 
H3C 
CH3 
33953 C10H15I2ORe 
591.24 
(-) Re(+) 
I 
O 
I 
C10H15I2ORe III/35e 2.2.7:4845 
33954 C10H15Mo6O18 
998.86 
[Mo6(Cp*)O18]-III/35e 2.2.7:4731 
33955 C10H15N 
149.23 
769-06-2 
CH3 
N 
CH3 
CH3 
Benzenamine, N,N,2,6-tetramethyl-; 
2,6-Dimethyl-N,N-dimethylaniline; 
(2,6-Dimethyl-phenyl)-dimethyl-amine; 
2,6-Xylidine, N,N-dimethyl-
III/35b 3.2:1261 
CH3 
33956 C10H15N 
149.23 
4052-88-4 CH3 
N 
H3C 
CH3 Dimethyl-(4-methyl-benzyl)-amine; 
(p-Methylbenzyl)dimethylamine 
III/35b 3.2:1262 
33957 C10H15N 
149.23 
4525-48-8 
CH3 
N 
CH3 
CH3 Dimethyl-(2-methyl-benzyl)-amine III/35b 3.2:1263 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33958 C10H15NO 
165.23 
15175-54-9 CH3 
N 
CH3 
O 
H3C 
(4-Methoxy-benzyl)-dimethyl-amine; 
4-Methoxy-N,N-dimethylbenzylamine 
III/35b 3.2:1264 
33959 C10H15NO 
165.23 
O 
N 
3-Pyrrolidin-1-yl-cyclohex-2-enone III/35e 2.2.1:1230 
33960 C10H15NO 
165.23 
NH 
H3C 
O 
CH3 
(S)-4,7-Dimethyl-2,4a,5,6,7,7a-hexahydro-
[2]pyrindin-1-one 
III/35e 2.2.1:1231 
33961 C10H15NO 
165.23 
O 
N 
+ 
O 
N 
(1S*,7S*)-6,6-Dimethyl-3-oxa-4-aza-
tricyclo[5.2.1.01,5]dec-4-ene 
III/35e 2.2.1:1232; 
III/35e 2.2.3:3599 
33962 C10H15NO 
165.23 
O 
NH 
1,2,3,4,5,6,7,8-Octahydro-benzo[b]azepin-
9-one 
III/35c2 2.2:961 
33963 C10H15NOS 
197.3 
O 
S 
CH3 4-Methyl-benzenesulfinic acid 
isopropylamide 
III/35e 2.2.5:4274 
NH CH3 
H3C 
33964 C10H15NOS 
197.3 C2H5N 
CH3H3C (2-Ethanesulfinyl-phenyl)-dimethyl-amine III/35e 2.2.5:4275 
S 
O 
33965 C10H15NOS 
197.3 
O 
C2H5 
SN 
H3C 
H3C (4-Ethanesulfinyl-phenyl)-dimethyl-amine III/35e 2.2.5:4276 
33966 C10H15NO2 
181.23 
O 
H3C 
O 
N 
1-tert-Butyl-1H-pyrrole-3-carboxylic acid 
methyl ester 
III/35c2 2.2:962 
33967 C10H15NO2 
181.23 
O CH3 3-Pyrrolidin-1-ylmethylene-pentane-2,4-
dione 
III/35e 2.2.1:1233 
N O 
CH3 
33968 C10H15NO2 
181.23 
O 
O 
NH 
CH3 
5,5-Dimethyl-2-methylaminomethylene-
cyclohexane-1,3-dione 
III/35e 2.2.1:1234 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33969 C10H15NO2S 
213.3 
1709-50-8 Ph 
S 
O O 
N 
C2H5 
C2H5 
Benzenesulfonamide, N,N-diethyl-; 
N,N-Diethyl-benzenesulfonamide 
III/35b 3.2:1266 
33970 C10H15NO3 
197.23 
HO 
C2H5 
H5C2 
O 
NH 
O 
HO 
C2H5 
H5C2 
O 
NH 
O 
+ 
4-((R,S)-1-Hydroxy-propyl)-1H-pyrrole-2-
carboxylic acid ethyl ester 
III/35c2 2.2:963 
33971 C10H15NO3 
197.23 
CH3 3-Morpholin-4-ylmethylene-pentane-2,4-
dione 
III/35e 2.2.1:1235 
N O 
O 
O CH3 
33972 C10H15NO4 
213.23 
H3C CH3 
C2H5HOOC O 
ON 
4-Ethoxy-1-isopropyl-5-oxo-2,5-dihydro-1H-
pyrrole-3-carboxylic acid 
III/35c2 2.2:965 
33973 C10H15NO4 
213.23 
O OH3C 
O 
H5C2 
CH3O 
NH 
O OH3C 
O 
H5C2 
CH3O 
NH 
+ 
(R,S)-5-Ethyl-2,3-dihydro-1H-pyrrole-3,4-
dicarboxylic acid dimethyl ester 
III/35c2 2.2:964 
33974 C10H15NS 
181.3 Ph 
S 
C2H5 
N 
C2H5 N,N-Diethyl-S-phenyl-thiohydroxylamine III/35b 3.2:1267 
33975 C10H15NSe 
228.19 Ph 
Se 
C2H5 
N 
C2H5 N,N-Diethyl-Se-phenyl-
selenohydroxylamine 
III/35b 3.2:1268 
33976 C10H15N3O 
193.25 
CH3 
O 
CH3 
O 
(R,S)-4,4,6-Trimethyl-2-(1H-pyrazol-4-yl)-
5,6-dihydro-4H-[1,3]oxazine 
III/35c2 2.2:966 
NN NN 
+ 
NH NH 
33977 C10H15N3O3 
225.24 
O 2-(2,2-Dimethoxy-ethylamino)-nicotinamide III/35c2 2.2:967 
NH2 
O 
CH3NHN 
O 
CH3 
33978 C10H15N3O3 
225.24 
N 
O 
H3C 
O 
NH2 
3-(1,3,6-Trimethyl-2,4-dioxo-1,2,3,4-
tetrahydro-pyrimidin-5-yl)-propionamide 
III/35e 2.2.1:1236 
NO CH3 
CH3 
33979 C10H15OPS 
214.26 
CH3 
PH 
O 
C2H5 
CH3 S (2,6-Dimethyl-phenyl)-phosphinothioic acid 
ethyl ester 
III/35a 3.2:923 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33980 C10H15OPS2 
246.33 
51805-04-0 H5C2 S 
O 
P 
S 
C2H5 
Ph Phenyl-phosphonodithioic acid diethyl 
ester; 
Phosphonodithioic acid, phenyl-, S,S-
diethyl ester 
III/35a 3.2:924 
33981 C10H15O2P 
198.2 
6172-81-2 Ph 
O 
PH 
O 
C4H9 
n-Butyl phenylphosphinate; 
Phenyl-phosphinic acid butyl ester 
III/35a 3.2:925; 
III/35c4 2.4:3369; 
III/35e 2.2.4:3794 
33982 C10H15O2P 
198.2 
13336-52-2 PH 
O 
CH3 
CH3Ph 
O Phenyl-phosphinic acid isobutyl ester III/35e 2.2.4:3795 
33983 C10H15O2PSe 
277.16 H5C2 O 
Se 
P 
O 
C2H5 
Ph C10H15O2PSe III/35a 3.2:926 
33984 C10H15O3P 
214.2 PH 
O 
OO 
Ph 
C10H15O3P III/35c4 2.4:3365 
33985 C10H15O3Re 
369.43 
(-) Re(+) 
O 
O 
C10H15O3Re III/35e 2.2.7:4846 
O 
33986 C10H15O4P 
230.2 O 
O 
PH 
Ph 
O 
HO 
2-(2-Phenyl-2.5-[1,3,2]dioxaphospholan-2-
yloxy)-ethanol 
III/35a 3.2:927 
33987 C10H15P 
166.2 
6002-31-9 PH 
Ph 
tert-Butyl-phenyl-phosphane III/35a 3.2:931 
33988 C10H15P 
166.2 
10251-55-5 
PH 
Ph C4H9 
Butyl-phenyl-phosphane; 
Butyl-phenyl-phosphine 
III/35a 3.2:929 
33989 C10H15P 
166.2 
54722-14-4 PH 
Ph 
CH3 
CH3 
Isobutyl-phenyl-phosphane III/35a 3.2:928 
33990 C10H15P 
166.2 
PH 
Ph 
C2H5 
CH3 
PH 
Ph 
C2H5 
CH3 
+ 
((R,S)-sec-Butyl)-phenyl-phosphane III/35a 3.2:930 
33991 C10H15PS3 
262.39 
Ph 
P 
S S C2H5 
S 
C2H5 
Phenyl-phosphonotrithioic acid diethyl ester III/35a 3.2:1068 
33992 C10H15PSe 
245.16 P 
Ph C3H7 
Se C10H15PSe III/35a 3.2:932 
33993 C10H15PSe 
245.16 P 
Ph C2H5 
Se C2H5 C10H15PSe III/35a 3.2:933 
33994 C10H16BClSi 
210.58 B 
Cl C10H16BClSi III/35a 2.2:920 
CH3 
Si 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
33995 C10H16BN 
161.05 
C2H5 CH3 
C10H16BN III/35a 2.2:922 
N 
H5C2 B 
CH3 
33996 C10H16B4 
179.48 
4-Ph-2,3-Me2B4C2H5 III/35a 2.2:923 
33997 C10H16B4Co2 
297.34 
1,2-(CpCo)2B4H6 III/35a 2.2:924 
33998 C10H16Br2Si2 
352.21 
Si 
Si 
Br 1,2-Bis-(3-bromo-prop-1-ynyl)-1,1,2,2-
tetramethyl-disilane 
III/35c4 2.2:1042 
Br 
33999 C10H16ClN7O 
285.73 
H2N NH2N 
CH3 
N''-(3,5-Diamino-6-chloro-pyrazine-2-
carbonyl)-N,N,N',N'-tetramethyl-guanidine 
III/35b 3.2:1269 
N N 
NCl CH3 
O N 
H3C CH3 
34000 C10H16Cl2Si2 
263.31 
Si 
Si 
Cl 1,2-Bis-(3-chloro-prop-1-ynyl)-1,1,2,2-
tetramethyl-disilane 
III/35c4 2.2:1043 
Cl 
34001 C10H16F2NP 
219.21 
CH3 
P 
F 
CH3F 
C10H16F2NP III/35a 3.2:934 
Ph N 
CH3 
34002 C10H16F2O 
190.23 H3C 
CH3 OH 
F 
F (E,Z)-(R,S)-1,2-Difluoro-3,7-dimethyl-octa-
1,6-dien-3-ol 
III/35b 2.2:1000 
+ 
CH3 OH F 
H3C 
F 
34003 C10H16F2O 
190.23 CH2 
F FOHH3C 
1-(1,1-Difluoro-allyl)-2-methyl-cyclohexanol III/35b 2.2:999 
34004 C10H16F2O2 
206.23 
FB (E)-2,3-Difluoro-dec-2-enoic acid III/35b 2.2:1001 
H15C7 COOH 
FA 
34005 C10H16F2O2 
206.23 
FA 
FB 
(Z)-2,3-Difluoro-dec-2-enoic acid III/35b 2.2:1002 
H15C7 
COOH 
34006 C10H16F2O3 
222.23 
O 
C2H5 
O 2,2-Difluoro-7-oxo-octanoic acid ethyl ester III/35b 2.2:1003 
H3C O 
F F 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34007 C10H16IP 
294.11 
P(+) I(-) 
1,1-Dimethyl-4,5,6,7-tetrahydro-1H-
phosphindolium iodide 
III/35a 3.2:935 
34008 C10H16NO3P 
229.21 
(6-Methyl-pyridin-2-yl)-phosphonic acid 
diethyl ester 
III/35c2 2.2:968 
O 
C2H5PH3C N 
O O 
C2H5 
34009 C10H16NO4 
214.24 N 
O 
O N 
O 
O 
(R,S)-1-tert-Butoxycarbonyl-pyrrolidine-2-
carboxylic acid anion 
III/35e 2.2.1:1237 
O(-) O(-)+ 
O O 
34010 C10H16NO4P 
245.21 Ph N 
OH 
P 
O O CH3 
O 
CH3 
[(Benzyl-hydroxy-amino)-methyl]-
phosphonic acid dimethyl ester 
III/35a 3.2:936 
34011 C10H16N2 
164.25 
CH3 
CH3 
N 
N,N,N',N'-Tetramethyl-benzene-1,2-
diamine 
III/35b 3.2:1271 
N 
CH3 
CH3 
34012 C10H16N2 
164.25 
CH3 2,6,N',N'-Tetramethyl-benzene-1,4-diamine III/35b 3.2:1272 
NH2 
N CH3 
H3C 
CH3 
34013 C10H16N2 
164.25 
CH3 
N 
CH3 2,6,N,N-Tetramethyl-benzene-1,4-diamine III/35b 3.2:1273 
CH3 
H2N CH3 
34014 C10H16N2 
164.25 
100-22-1 CH3 
N 
CH3 1,4-Benzenediamine, N,N,N',N'-
tetramethyl-; 
N,N,N',N'-Tetramethyl-benzene-1,4-
diamine 
III/35b 3.2:1270 
N 
H3C 
CH3 
34015 C10H16N2O2 
196.25 
O 
C2H5 
O 
H3C 
N 
Propionic acid 3,5-dimethyl-6,7-dihydro-
[1,2]diazepin-1-yl ester 
III/35c2 2.2:969 
N 
H3C 
34016 C10H16N2O2 
196.25 N(+) 
N 
OH 
O(-) C10H16N2O2 III/35e 2.2.3:3600 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34017 C10H16N2S 
196.31 
34018 C10H16N3P 
209.23 
34019 C10H16N3PS 
241.29 
34020 C10H16N3PSe 
288.19 
34021 C10H16N4OS 
240.32 
34022 C10H16N6S2 
284.4 
34023 C10H16O 
152.23 
34024 C10H16O 
152.23 
34025 C10H16O 
152.23 
34026 C10H16O 
152.23 
34027 C10H16O 
152.23 
34028 C10H16O 
152.23 
H2C 
NH CH3S 
N 
Allyl-(4,4,6-trimethyl-4H-[1,3]thiazin-2-yl)amine 
III/35c2 2.2:970 
N 
P 
N 
CH3 
CH3 
NH 
Ph 
(1,3-Dimethyl-[1,3,2]diazaphospholidin-2-
yl)-phenyl-amine 
III/35b 3.2:1274 
N 
P 
N 
CH3 
CH3 
NH 
Ph 
S 
(1,3-Dimethyl-2-thioxo-2.5-
[1,3,2]diazaphospholidin-2-yl)-phenyl-
amine 
III/35b 3.2:1275 
N 
P 
N 
CH3 
CH3 
NH 
Ph 
Se 
(1,3-Dimethyl-2-selenoxo-2.5-
[1,3,2]diazaphospholidin-2-yl)-phenyl-
amine 
III/35b 3.2:1276 
CH3 
CH3 
S 
O N 
N 
N 
N 
3-Isopropylsulfanyl-5-morpholin-4-yl-
[1,2,4]triazine 
III/35c2 2.2:971 
CH3SH3C S 
H5C2 
NN 
NN 
N N 
C10H16N6S2 III/35c2 2.2:972 
O 
1,3,3-Trimethyl-bicyclo[2.2.1]heptan-2-one III/35e 2.2.1:1239 
O O 
+ 
(1R*,4R*)-1,7,7-Trimethyl-
bicyclo[2.2.1]heptan-2-one 
III/35e 2.2.1:1238 
O 
CH3 
O 
CH3 
+ 
(1R*,4S*,6S*)-4,7,7-Trimethyl-
bicyclo[4.1.0]heptan-3-one 
III/35e 2.2.1:1240 
HO HO 
+ 
((1R*,5S*)-6,6-Dimethyl-bicyclo[3.1.1]hept-
2-en-2-yl)-methanol 
III/35e 2.2.2:2904 
O O+ 
(1R*,6R*)-2,7,7-Trimethyl-3-oxa-
tricyclo[4.1.1.02,4]octane 
III/35e 2.2.2:2905 
O O+ 
(1S*,3S*,5R*,7R*)-3,8,8-Trimethyl-4-oxa-
tricyclo[5.1.0.03,5]octane 
III/35e 2.2.2:2906 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34029 C10H16OPt 
347.31 (-) 
Pt(+) 
O 
Cyclopentadienyl-acetyl-dimethyl-platinum III/35c4 2.2:1044 
H5C2 CH3 CH3 
34030 C10H16O2 
168.23 C5H11 
O 
H3C O 
O 
H3C 
+ C5H11 
O (R,S)-2-Methyl-5-pentyl-furan-3-one III/35c2 2.2:974 
34031 C10H16O2 
168.23 
20651-89-2 
O 
O 
3,3,6,6-Tetramethyl-cyclohexane-1,2-dione III/35e 2.2.1:1242 
34032 C10H16O2 
168.23 
O HO 1-(5,6-Dihydro-4H-pyran-2-yl)cyclopentanol 
III/35c2 2.2:973 
34033 C10H16O2 
168.23 
O OH3C 
H3C 
(1S*,4S*)-1-Isopropyl-4-methyl-2,3-dioxa-
bicyclo[2.2.2]oct-5-ene 
III/35e 2.2.2:2909 
+ 
O OH3C 
H3C 
34034 C10H16O2 
168.23 
O 
CH3 
O 
+ 
O 
CH3 
O 
(R,S)-2-Acetyl-cyclooctanone III/35e 2.2.1:1243 
34035 C10H16O2 
168.23 
O 
H3C 
O 
CH3 
(4S,7R)-4,7-Dimethyl-hexahydro-
cyclopenta[c]pyran-1-one 
III/35e 2.2.1:1244 
34036 C10H16O2Si 
196.32 
O 
O 
Si 
H3C 
(4-Methoxy-phenoxy)-trimethyl-silane III/35e 2.2.2:2910 
34037 C10H16O3 
184.23 
O 
O O 
CH2 
CH3 
(1S,6R)-5-Isopropenyl-1-methyl-7,8,9-
trioxa-bicyclo[4.2.1]nonane 
III/35e 2.2.2:2914 
34038 C10H16O3 
184.23 
OO 
O 
CH3 
CH3 
C10H16O3 III/35e 2.2.2:2912 
34039 C10H16O3 
184.23 
OO 
O 
+ OO 
O (1R*,2S*,5R*,6S*)-1,2,5-Trimethyl-3,4,10-
trioxa-tricyclo[4.2.1.12,5]decane 
III/35e 2.2.2:2911 
34040 C10H16O3 
184.23 OO 
O 
C10H16O3 III/35e 2.2.2:2913 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34041 C10H16O4 
200.23 
O 
OO O 1-Methyl-4-(3-methyl-[1,2,4]trioxolan-3-yl)-
7-oxa-bicyclo[4.1.0]heptane 
III/35e 2.2.2:2915 
34042 C10H16O4PRe 
417.41 
O 
C 
O 
P 
H5C2 
H 
C 
Re 
C 
O 
C 
H5C2 
C10H16O4PRe III/35c4 2.2:1045 
C2H5 
O 
34043 C10H16O4S 
232.3 
O C10H16O4S III/35c2 2.2:975 
OC(-) 
C2H5S(+) 
H5C2 O O 
34044 
331.31 
C10H16Pt 
(-) 
CH2 
Cyclopentadienyl-(3-allyl)-dimethyl-
platinum 
III/35c4 2.2:1046 
Pt(+) 
H3C 
CH3 
34045 C10H16S 
168.3 C2H5 
S 
2-Ethyl-2,4,5,6,7,7a-hexahydro-
benzo[b]thiophene 
III/35c2 2.2:976 
34046 C10H16Si2 
192.41 Si 
C10H16Si2 III/35c4 2.2:1047 
Si 
34047 C10H17B 
148.05 
H3C B CH2 
H3C B CH2 
+ 
C10H17B III/35a 2.2:925 
34048 C10H17BCl2 
218.96 
(Ipc)BCl2 III/35a 2.2:926 
34049 C10H17BCoNO4 
284.99 
N 
C2H5 
H5C2 
Co 
C 
O 
C 
C 
O 
BH2 
C2H5 
C10H17BCoNO4 III/35a 2.2:1175 
O C 
O 
34050 
196.05 
C10H17BO3 
O B 
O CH3 
C10H17BO3 III/35a 2.2:927 
CH3OH3C 
CH3 
34051 C10H17B9O2 
266.54 
C10H17B9O2 III/35a 2.2:928 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34052 C10H17CoN4O5 
332.2 
Co 
N(+) 
NN(+) 
N 
OH O(-) 
CH3 
OHO(-) 
H3C 
H3C 
CH3 
CH3C 
O 
C10H17CoN4O5 III/35c4 2.2:1048 
34053 C10H17FO3 
204.24 
See appendix No: 34053 (R,S)-2-Fluoro-3-oxo-octanoic acid ethyl 
ester 
III/35b 2.2:1004 
34054 C10H17F3O 
210.24 
H13C6 
OH 
CF3 
H13C6 
OH 
CF3 
+ 
(E,Z)-(R,S)-1,1,1-Trifluoro-dec-3-en-2-ol III/35b 2.2:1005 
34055 C10H17F3OSi 
238.32 
O 
Si 
CF3 
O 
Si 
CF3 
+ 
Trimethyl-((R,S)-4-trifluoromethyl-cyclohex-
1-enyloxy)-silane 
III/35b 2.2:1006 
34056 C10H17F3OSi 
238.32 
O 
Si 
CF3 
O 
Si 
CF3 
+ 
Trimethyl-((R,S)-5-trifluoromethyl-cyclohex-
1-enyloxy)-silane 
III/35b 2.2:1007 
34057 C10H17F3O2 
226.24 
F3C 
OH O 
C6H13 (R)-1,1,1-Trifluoro-2-hydroxy-decan-4-one III/35b 2.2:1008 
34058 C10H17F3Si 
222.32 
Si 
CF3 
Si 
+ 
CF3 Trimethyl-((R,S)-4-trifluoromethyl-cyclohex-
1-enyl)-silane 
III/35b 2.2:1176 
34059 C10H17F3Si 
222.32 Si CF3 Si 
+ 
CF3 
Trimethyl-((R,S)-5-trifluoromethyl-cyclohex-
1-enyl)-silane 
III/35b 2.2:1177 
34060 C10H17F4NO2 
259.24 
O 
O 
N 
F 
CF3 
C2H5 
C2H5 
H3C 
Diethyl-[4-methyl-2-(1,2,2,2-tetrafluoro-
ethyl)-[1,3]dioxolan-2-yl]-amine 
III/35b 2.2:1009; 
III/35c2 2.2:977 
34061 C10H17N 
151.25 
H2N 
Adamantan-2-ylamine III/35b 3.2:1277 
34062 C10H17NO 
167.25 
O 
NH 
C4H9 
3-Butylamino-cyclohex-2-enone III/35b 3.2:1279 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34063 C10H17NO 
167.25 
(E/Z) 
O 
NH 
CH3 
CH3 
2-[1-Isopropylamino-methylidene]-
cyclohexanone 
III/35e 2.2.1:1247 
34064 C10H17NO 
167.25 
O NH 
CH3 
CH3 3-Isobutylamino-cyclohex-2-enone III/35e 2.2.1:1248 
34065 C10H17NO 
167.25 
C4H9 
CH3O 
N 
C4H9 
CH3O 
N+ 
(R,S)-2-Butyl-6-methoxy-2,5-dihydro-
pyridine 
III/35c2 2.2:978 
34066 C10H17NO 
167.25 + 
(1R*,4S*)-1,3,3-Trimethyl-
bicyclo[2.2.1]heptan-2-one oxime 
III/35e 2.2.1:1250 
N N 
HO HO 
34067 C10H17NO 
167.25 N 
CH3 (E,Z)-2-[1-Dimethylamino-methylidene]-
cycloheptanone 
III/35e 2.2.1:1249 
CH3 
O 
34068 C10H17NO 
167.25 
N CH3 
O (E,Z)-4-Azepan-1-yl-but-3-en-2-one III/35e 2.2.1:1246 
34069 C10H17NO 
167.25 
C3H7O 
N 
(5R,7aS)-5-Propyl-hexahydro-pyrrolizin-3-
one 
III/35c2 2.2:979 
34070 C10H17NOS 
199.31 
121003-12-1 
CH3 
N 
H3C 
O S 2H-Azepine-2-thione, hexahydro-1-(2-
methyl-1-oxopropyl)-; 
2-Methyl-1-(2-thioxo-azepan-1-yl)-propan-
1-one 
III/35c2 2.2:980 
34071 C10H17NO2 
183.25 
O 
O CH3 
NH 
CH3 
CH3 
H3C 
3-(Isobutylamino-methylene)-pentane-2,4-
dione 
III/35e 2.2.1:1251 
34072 C10H17NO2 
183.25 
O 3-(tert-Butylamino-methylene)-pentane-2,4-
dione 
III/35e 2.2.1:1252 
NHH3C 
O CH3 
34073 C10H17NO2 
183.25 
O 
N 
C2H5H3C 
3-Diethylaminomethylene-pentane-2,4-
dione 
III/35e 2.2.1:1253 
O CH3 
C2H5 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34074 C10H17NO2 
183.25 
(E/Z) 
O 
ON 
CH3 
(E,Z)-5-Pyrrolidin-1-yl-pent-3-enoic acid 
methyl ester 
III/35c2 2.2:982 
34075 C10H17NO2 
183.25 
O 
CH3 2-Piperidin-(2Z)-ylidene-propionic acid ethyl 
ester 
III/35c2 2.2:981 
C2H5 
ONH 
34076 C10H17NO3 
199.25 
O NH 
(Z)-4-tert-Butylamino-2-oxo-but-3-enoic 
acid ethyl ester 
III/35e 2.2.1:1254 
O 
H5C2 
O 
34077 C10H17NO4 
215.25 
H5C2 
O 
O N 
H3C CH3 
O O 
C2H5 
2-Dimethylaminomethylene-malonic acid 
diethyl ester 
III/35e 2.2.1:1255 
34078 C10H17NO4 
215.25 
O 
CH3O 
H5C2O 
N 
H5C2O 
N+ 
O 
CH3O 
Acetic acid 2-((R,S)-2-ethoxy-5-oxo-
pyrrolidin-1-yl)-ethyl ester 
III/35c2 2.2:983 
O O 
34079 C10H17NPb 
358.44 Pb Ph 
(Phenyl-methyl-amino)-trimethyl-plumbane III/35b 3.2:1280 
N 
CH3 
34080 C10H17NS 
183.31 
S 
N 
1-(2,2-Dimethyl-2,5-dihydro-thiophen-3-yl)pyrrolidine 
III/35c2 2.2:984 
34081 C10H17NSi 
179.33 Si CH3 
(Dimethyl-phenyl-silanyl)-dimethyl-amine III/35b 3.2:1281 
Ph N 
CH3 
34082 C10H17NSn 
269.94 Sn Ph 
(Phenyl-methyl-amino)-trimethyl-stannane III/35b 3.2:1282 
N 
CH3 
34083 C10H17N2 
165.25 
CH3 
CH3 
N 
(2-Dimethylamino-phenyl)-dimethyl-
ammonium 
III/35b 3.2:1283 
NH(+) 
CH3 
CH3 
34084 C10H17N2O2P 
228.23 
7393-13-7 
O N CH3 
H3C Tetramethyl-diamidophosphoric acid 
phenyl ester 
III/35a 3.2:937 
Ph 
O 
P 
N 
CH3 
CH3 
34085 C10H18As2B8Co2 
492.45 
See appendix No: 34085 C10H18As2B8Co2 III/35c4 2.2:1049 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34086 C10H18B 
149.06 B(-) 
C10H18B-III/35a 2.2:929 
34087 C10H18BLi 
156.0 B(-) 
Li(+) 
C10H18BLi III/35a 2.2:929 
34088 C10H18BLiO 
172.0 
B(-) 
O 
CH3 
Li(+) 
Li+C10H18BO-III/35a 2.2:931 
34089 C10H18BNOS 
211.13 B 
SH5C2 CH3 C10H18BNOS III/35a 2.2:930 
N 
H5C2 C2H5 
O 
34090 C10H18BO 
165.06 
B(-) 
O 
CH3 C10H18BO-III/35a 2.2:931 
34091 C10H18B2N4 
215.9 
(delocalized system) 
N(+)N(+) 
BH2(-) 
H3C CH3 
C10H18B2N4 III/35a 2.2:932 
NN 
BH2(-) 
CH3H3C 
34092 C10H18B8Ni2 
342.12 
1,6-(CpNi)2B8H8 III/35a 2.2:933 
34093 C10H18ClFSi 
220.79 
Cl Cl ((1R*,6R*,7R*)-7-Chloro-7-fluoro-
bicyclo[4.1.0]hept-1-yl)-trimethyl-silane 
III/35b 2.2:1010 
+ 
Si F Si F 
34094 C10H18ClF3O 
246.7 
OH 
CF3 
2-Chloro-1,1,1-trifluoro-decan-3-ol III/35b 2.2:1011 
H15C7 
Cl 
34095 C10H18ClN 
187.71 
H3N(+) Cl(-) 
Adamantan-2-yl-ammonium chloride III/35b 3.2:1284 
34096 C10H18ClN 
187.71 
Cl(-)NH3(+) 
Adamantan-1-yl-ammonium chloride III/35b 3.2:1285 
34097 C10H18ClNOPtS 
430.85 
N 
ClPtS 
O 
H3C 
CH3 
C10H18ClNOPtS III/35c4 2.2:1050 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34098 C10H18Cl2Pd2 
421.96 
(delocalized system) 
H3C CH3 
C10H18Cl2Pd2 III/35c4 2.2:1051 
Pd(+) 
Cl 
Pd(+) 
CH(-) 
ClCH(-) 
H3C CH3 
34099 C10H18Cl2Pd2 
421.96 
(delocalized system) 
H5C2 
C10H18Cl2Pd2 III/35c4 2.2:1052 
Pd(+) 
Cl 
Pd(+) 
CH2(-) 
ClCH2(-) 
C2H5 
34100 C10H18FIO 
300.15 I 
F 
O 2-(7-Fluoro-8-iodo-octyl)-oxirane III/35b 2.2:1012 
34101 C10H18F2IO5P 
414.12 
I F F 
P 
O 
C2H5HOOC 
(R,S)-6-(Diethoxy-phosphoryl)-6,6-difluoro-
4-iodo-hexanoic acid 
III/35a 3.2:938; 
III/35b 2.2:1013 
O O C2H5 
+ 
I F F 
O 
P C2H5HOOCO O C2H5 
34102 C10H18F2O 
192.25 
H17C8 
F F 
O 
2,2-Difluoro-decanal III/35b 2.2:1015 
34103 C10H18F2O 
192.25 
FA 
FB 
OHH15C7 
(E)-2,3-Difluoro-dec-2-en-1-ol III/35b 2.2:1017 
34104 C10H18F2O 
192.25 H13C6 
OH 
CH2 
F F 
H13C6 
OH 
CH2 
F F 
+ 
(R,S)-3,3-Difluoro-dec-1-en-4-ol III/35b 2.2:1014 
34105 C10H18F2O 
192.25 
C4H9 
FA 
FB 
C3H7 
OH C4H9 
FA 
FB 
C3H7 
OH 
+ 
(Z)-(R,S)-5,6-Difluoro-dec-5-en-4-ol III/35b 2.2:1016 
34106 C10H18F2O2 
208.25 
H11C5 
O CH3 2,2-Difluoro-heptanoic acid isopropyl ester III/35b 2.2:1018 
O CH3 
F F 
34107 C10H18F2O2 
208.25 H13C6 
O 
C2H5 
2,2-Difluoro-octanoic acid ethyl ester III/35b 2.2:1019 
O 
F F 
34108 C10H18F2O3 
224.25 
See appendix No: 34108 (R,S)-2,2-Difluoro-3-hydroxy-octanoic acid 
ethyl ester 
III/35b 2.2:1020 
34109 C10H18F2O4 
240.24 
See appendix No: 34109 (R,S)-1,1-Difluoro-2-(2-methoxy-
ethoxymethoxy)-4-methyl-pent-1-en-3-ol 
III/35b 2.2:1021 
34110 C10H18F6O3P2 
362.19 F3C 
P 
CF3 
P 
O O C4H9 
O 
C4H9 
C10H18F6O3P2 III/35a 3.2:939 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34111 C10H18F6O3P2 
362.19 
O O 
CH3 
H3C C10H18F6O3P2 III/35a 3.2:940 
F3C 
P 
P 
O 
CH3 
CF3 CH3 
34112 C10H18F8NiO6P2 
506.87 
Ni 
F FF 
F 
F 
F 
F F 
P 
O CH3 
O 
CH3 
O CH3 
P 
O 
CH3 
O 
CH3 
O CH3 
C10H18F8NiO6P2 III/35c4 2.2:1053 
34113 C10H18KO4P7 
458.16 P 
P 
P 
P 
P(-) 
P 
P 
O 
O 
H5C2 
K(+) CH3 CH3 
O 
O 
C2H5 
C10H18KO4P7 III/35c4 2.2:1054 
34114 C10H18NO4P 
247.23 
See appendix No: 34114 [(R,S)-1-(3-Methyl-isoxazol-5-yphosphonic acid diethyl ester 
l)-ethyl]-III/35c2 2.2:985 
34115 C10H18N2NiO2 
256.96 
N(+) 
C10H18N2NiO2 III/35c4 2.2:1055 
O C(-) 
Ni 
O C(-) 
N(+) 
34116 C10H18N2O 
182.26 
N 
O 
CH3 
N 
+ N 
N 
O 
CH3 C10H18N2O III/35b 3.2:1286 
34117 C10H18N2O 
182.26 
N 
O 
H3C 
N 
H3C 
+ N 
ON 
C10H18N2O III/35b 3.2:1287 
34118 C10H18N2O 
182.26 
N 
O 
CH3 
N 
+ N 
N 
O 
CH3 
C10H18N2O III/35b 3.2:1288 
34119 C10H18N2O 
182.26 
C10H18N2O III/35b 3.2:1289 
N + N 
O 
CH3 N 
O 
CH3 N 
34120 C10H18N2O 
182.26 
C10H18N2O III/35b 3.2:1290 
N + N 
O 
CH3 N 
O 
CH3 N 
34121 C10H18N2O2Pd 
304.66 
N(+) 
C10H18N2O2Pd III/35c4 2.2:1056 
O C(-) 
Pd 
O C(-) 
N(+) 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34122 C10H18N2O5 
246.26 
O N-((1R,2S,4R,5S)-5-Acetylamino-2,3,4-
trihydroxy-cyclohexyl)-acetamide 
III/35b 3.2:1291 
NH CH3 
HO 
O 
NH CH3HO 
OH 
34123 C10H20N2O10P2 
Ru2 
592.36 
Ru RuP P 
C 
O 
C 
O 
C C 
OO C10H20N2O10P2Ru2 III/35c4 2.2:1057 
O O 
O O NH(+) 
NH(+) 
O(-) 
O(-) 
34124 C10H18N3P 
211.24 
NH N 
CH3 C10H18N3P III/35b 3.2:1292 
Ph P CH3 
N 
CH3H3C 
34125 C10H18O 
154.25 O 
CH3 3,3-Dimethyl-2-(2-methyl-propenyloxy)-but-
1-ene 
III/35e 2.2.2:2916 
CH3 
CH2 
34126 C10H18O 
154.25 O 
2,2,6,6-Tetramethyl-cyclohexanone III/35e 2.2.1:1256 
34127 C10H18O 
154.25 
O 
3,3,5,5-Tetramethyl-cyclohexanone III/35e 2.2.1:1257 
34128 C10H18O 
154.25 
OH 
+ 
OH 
(1R*,2S*,4R*)-1,7,7-Trimethyl-
bicyclo[2.2.1]heptan-2-ol 
III/35e 2.2.2:2918 
34129 C10H18O 
154.25 
OH OH 
+ 
(1R*,2R*,4R*)-1,7,7-Trimethyl-
bicyclo[2.2.1]heptan-2-ol 
III/35e 2.2.2:2919 
34130 C10H18O 
154.25 
(1R*,2R*,4S*)-1,3,3-Trimethyl-
bicyclo[2.2.1]heptan-2-ol 
III/35e 2.2.2:2920 
+ 
OH OH 
34131 C10H18O 
154.25 
(1R*,2S*,4S*)-1,3,3-Trimethyl-
bicyclo[2.2.1]heptan-2-ol 
III/35e 2.2.2:2921 
+ 
OH OH 
34132 C10H18O 
154.25 O 
CH3 (E)-1-Methoxy-cyclononene III/35e 2.2.2:2917 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34133 C10H18O2 
170.25 
OH 
HO HO 
+ 
OH 
(1R*,2R*,4R*)-4-(1-Hydroxy-1-methyl-
ethyl)-1-methyl-bicyclo[3.1.0]hexan-2-ol 
III/35e 2.2.2:2923 
34134 C10H18O2 
170.25 
C2H5HO 
C2H5 
O 
3-(5,6-Dihydro-4H-pyran-2-yl)-pentan-3-ol III/35c2 2.2:987 
34135 C10H18O2 
170.25 
O 
O + 
O 
O 
((R,S)-2,6,6-Trimethyl-tetrahydro-pyran-2-
yl)-acetaldehyde 
III/35c2 2.2:986 
34136 C10H18O2 
170.25 
OH 
OH 
+ 
OH 
OH 
(1S*,3R*,4R*,6R*)-3,7,7-Trimethyl-
bicyclo[4.1.0]heptane-3,4-diol 
III/35e 2.2.2:2922 
34137 C10H18O2 
170.25 
OO CH3 1-Isopropyl-4-methyl-2,3-dioxa-
bicyclo[2.2.2]octane 
III/35e 2.2.2:2931 
CH3 
34138 C10H18O2 
170.25 
O 
O (4aR*,8aR*)-2,2-Dimethyl-hexahydro-
benzo[1,3]dioxine 
III/35e 2.2.2:2924 
+ 
O 
O 
34139 C10H18O2 
170.25 
O 
O (4aR*,8aS*)-2,2-Dimethyl-hexahydro-
benzo[1,3]dioxine 
III/35e 2.2.2:2925 
+ 
O 
O 
34140 C10H18O2 
170.25 
O 
O 
CH3 
CH3 
O 
O 
CH3 
CH3 
+ 
(2S*,4S*,4aR*,8aR*)-2,4-Dimethyl-
hexahydro-benzo[1,3]dioxine 
III/35e 2.2.2:2926 
34141 C10H18O2 
170.25 
O 
O 
CH3 
CH3 
O 
O 
CH3 
CH3 
+ 
(2S*,4R*,4aR*,8aR*)-2,4-Dimethyl-
hexahydro-benzo[1,3]dioxine 
III/35e 2.2.2:2927 
34142 C10H18O2 
170.25 
O 
O 
CH3 
CH3 
O 
O 
CH3 
CH3 
+ 
(2R*,4R*,4aR*,8aS*)-2,4-Dimethyl-
hexahydro-benzo[1,3]dioxine 
III/35e 2.2.2:2928 
34143 C10H18O2 
170.25 
O 
O 
CH3 
CH3 
O 
O 
CH3 
CH3 
+ 
(2R*,4S*,4aR*,8aS*)-2,4-Dimethyl-
hexahydro-benzo[1,3]dioxine 
III/35e 2.2.2:2929 
34144 C10H18O2 
170.25 
O 
O 
CH3 
CH3 
O 
O 
CH3 
CH3 
+ 
(2R*,4R*,4aR*,8aR*)-2,4-Dimethyl-
hexahydro-benzo[1,3]dioxine 
III/35e 2.2.2:2930 
34145 C10H18O2Sn 
288.94 Sn 
O 
O CH3 
3-Trimethylstannanyl-
bicyclo[1.1.1]pentane-1-carboxylic acid 
methyl ester 
III/35c4 2.2:1058 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34146 C10H18O4 
202.25 
O 
O 
O 
O 
C10H18O4 III/35e 2.2.2:2932 
34147 C10H18O4S 
234.31 
S 
O 
O O 
O 
C2H5 
(2S,4aS,8aS)-2-Ethoxy-octahydro-
benzo[1,4]oxathiine 4,4-dioxide 
III/35e 2.2.5:4278 
34148 C10H18Pt 
333.33 
(-) Pt(+) 
C2H5 
CH3 
Cyclopentadienyl-diethyl-methyl-platinum III/35c4 2.2:1059 
C2H5 
34149 C10H18Pt 
333.33 
(-) Pt(+) 
C3H7CH3 
Cyclopentadienyl-propyl-dimethyl-platinum III/35c4 2.2:1060 
CH3 
34150 C10H18Pt 
333.33 
(-) Pt(+) 
CH3 
H3C CH3 Cyclopentadienyl-isopropyl-dimethyl-
platinum 
III/35c4 2.2:1061 
CH3 
34151 C10H18Pt 
333.33 CH3Pt 
Cyclooctadienyl-dimethyl-platinum III/35c4 2.2:1062 
CH3 
34152 C10H18S 
170.31 
H5C2 
CH3 
CH3 
H3C S 
3-Ethyl-5-isopropyl-2-methyl-2,5-dihydro-
thiophene 
III/35c2 2.2:988 
34153 C10H18Si2Te 
322.02 Si 
Te 
Si 
1-Trimethylsilanyl-2-
trimethylsilanylethynyltellanyl-ethyne 
III/35c4 2.2:1063 
34154 C10H18Sn2 
375.63 SnSn 
1,4-Bis-trimethylstannanyl-buta-1,3-diyne III/35c4 2.2:1064 
34155 C10H19B 
150.07 
H3C B CH3 
H3C B CH3 
+ 
C10H19B III/35a 2.2:934 
34156 C10H19BNP 
195.05 P 
C10H19BNP III/35a 2.2:935 
BH3 
N 
H3C 
CH3 
34157 C10H19BO 
166.07 
80095-73-4 
B O 
C2H5 9-Borabicyclo[3.3.1]nonane, 9-ethoxy-; 
9-Ethoxy-9-bora-bicyclo[3.3.1]nonane 
III/35e 2.2.2:2933 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34158 C10H19BSn 
268.76 
B Sn 
CH3 
CH3 
H5C2 
C10H19BSn III/35a 2.2:936 
34159 C10H19ClN2OPtS 
445.87 
Cl 
NPtS 
O 
N 
CH3 
CH3 
C10H19ClN2OPtS III/35c4 2.2:1067 
34160 C10H19FO 
174.26 
H17C8 O 
F 
H17C8 O 
F 
+ 
(R,S)-2-Fluoro-decanal III/35b 2.2:1022 
34161 C10H19FSi 
186.34 
Si 
F 
Si 
F 
+ 
((1R*,6S*,7R*)-7-Fluoro-bicyclo[4.1.0]hept-
1-yl)-trimethyl-silane 
III/35b 2.2:1023 
34162 C10H19FSi 
186.34 
Si 
F 
Si 
F 
+ 
((1R*,6S*,7S*)-7-Fluoro-bicyclo[4.1.0]hept-
1-yl)-trimethyl-silane 
III/35b 2.2:1024 
34163 C10H19F2I 
304.16 
133932-48-6 
H17C8 
FF 
I 
2,2-Difluoro-1-iodo-decane III/35b 2.2:1025 
34164 C10H19F2O3P 
256.23 
H5C2 
O 
P 
OH5C2 O 
CH3 
CH3 (1,1-Difluoro-4-methyl-pent-3-enyl)-
phosphonic acid diethyl ester 
III/35b 2.2:1026 
F F 
34165 C10H19F3O 
212.25 
H17C8 
OH 
CF3 H17C8 
OH 
CF3 
+ 
(R,S)-1,1,1-Trifluoro-decan-2-ol III/35b 2.2:1027 
34166 C10H19N 
153.26 
C10H19N III/35b 3.2:1294 
NH CH3 
+ 
NH CH3 
34167 C10H19N 
153.26 
C10H19N III/35b 3.2:1295 
NH CH3 
+ 
NH CH3 
34168 C10H19N 
153.26 
CH3 C10H19N III/35b 3.2:1296 
NH 
+ 
CH3 
NH 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34169 C10H19N 
153.26 
CH3 C10H19N III/35b 3.2:1297 
NH 
+ 
CH3 
NH 
34170 C10H19N 
153.26 
NH 
+ 
NH 
C10H19N III/35b 3.2:1298 
34171 C10H19N 
153.26 
H3C C10H19N III/35b 3.2:1299 
NH 
+ 
H3C 
NH 
34172 C10H19N 
153.26 
C10H19N III/35b 3.2:1300 
+ 
NH NH 
CH3 CH3 
34173 C10H19N 
153.26 
C10H19N III/35b 3.2:1301 
+ 
NH NH 
CH3 CH3 
34174 C10H19N 
153.26 
(2 conformers) C10H19N III/35b 3.2:1302 
+ 
N N 
CH3 CH3 
34175 C10H19N 
153.26 
(2 conformers) C10H19N III/35b 3.2:1303 
+ 
NH NH 
34176 C10H19N 
153.26 
(2 conformers) 
H3C 
C10H19N III/35b 3.2:1304 
NH 
+ 
H3C 
NH 
34177 C10H19N 
153.26 
(2 conformers) C10H19N III/35b 3.2:1305 
+ 
NH NH 
CH3 CH3 
34178 C10H19N 
153.26 
(2 conformers) 
H3C 
C10H19N III/35b 3.2:1306 
NH 
+ 
H3C 
NH 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34179 C10H19N 
153.26 
(2 conformers) C10H19N III/35b 3.2:1307 
+ 
NH NH 
CH3 CH3 
34180 C10H19N 
153.26 
(2 conformers) 
CH3 
C10H19N III/35b 3.2:1308 
NH 
+ 
CH3 
NH 
34181 C10H19N 
153.26 
875-63-8 N 
+ 
N 
trans-Decahydro-1-methylquinoline; 
(4aR*,8aS*)-1-Methyl-decahydro-quinoline; 
Quinoline, decahydro-1-methyl-, trans-
III/35b 3.2:1293 
CH3 CH3 
34182 C10H19NO 
169.26 O 
H3C CH3 (E,Z)-4-Diisopropylamino-but-3-en-2-one III/35e 2.2.1:1260 
N CH3 
H3C 
CH3 
34183 C10H19NO 
169.26 
N 
O 
CH3 
CH3 1-Isopropyl-azocan-5-one III/35e 2.2.1:1262 
34184 C10H19NO 
169.26 NO C2H5 
1-Ethyl-azonan-5-one III/35e 2.2.1:1263 
34185 C10H19NO 
169.26 O 
1-Methyl-azecan-6-one III/35e 2.2.1:1261 
N 
CH3 
34186 C10H19NO2 
185.26 N 
5-(4,4-Dimethyl-4,5-dihydro-oxazol-2-yl)-
pentan-1-ol 
III/35c2 2.2:989 
OH 
O 
34187 C10H19NSn 
271.95 N Sn 
C2H5 1-Triethylstannanyl-1H-pyrrole III/35c4 2.2:1065 
C2H5 
C2H5 
34188 C10H19NiO3P 
276.92 
(delocalized system) 
Ni 
O 
CH3O 
H3C 
C10H19NiO3P III/35c4 2.2:1066 
OP 
CH3 
34189 C10H19O3P 
218.23 H2C 
O 
PH 
O 
O 
CH2 
C10H19O3P III/35a 3.2:941 
34190 C10H19O7P 
282.23 
See appendix No: 34190 (2R*,4aR*,6S*,7R*,8R*,8aR*)-6,7,8-
Trimethoxy-2-methyl-hexahydro-
III/35a 3.2:942 
pyrano[3,2-d][1,3,2]dioxaphosphinine 2oxide 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34191 C10H19O7P 
282.23 
See appendix No: 34191 (2S*,4aR*,6S*,7R*,8R*,8aR*)-6,7,8-
Trimethoxy-2-methyl-hexahydro-
III/35a 3.2:943 
pyrano[3,2-d][1,3,2]dioxaphosphinine 2oxide 
34192 C10H20BClS 
218.59 
B 
Cl S 
CH3 
CH3 
C10H20BClS III/35a 2.2:937 
34193 C10H20BN 
165.08 
B N 
CH3 
CH3 
C10H20BN III/35a 2.2:938 
34194 C10H20B10Ni2 
365.76 
1,2-(CpNi)2B10H10 III/35a 2.2:939 
34195 C10H20ClCuO4S6 
495.65 S OS 
O(-) C10H20ClCuO4S6 III/35c4 2.2:1068 
SCu(+)S Cl 
O O 
SS 
34196 C10H20ClN8P3 
380.69 
NHNH P 
N 
P 
N 
P 
NH NH 
CH2 
CH2H2C 
H2C 
C10H20ClN8P3 III/35a 3.2:944 
ClHN N 
H2C 
34197 C10H20Cl6Ga2N2 
520.44 
C10H20Cl6Ga2N2 III/35c4 2.2:1069 
Ga(+) 
N Cl 
Ga(-)ClCl 
N Cl ClCl 
34198 C10H20CoN3OS4 
385.48 N 
O 
S 
S 
N 
C2H5 
C2H5 
N 
S 
Co 
S 
H5C2 
H5C2 
C10H20CoN3OS4 III/35b 3.2:1309 
34199 C10H20FO3P 
238.24 
See appendix No: 34199 ((R,S)-1-Fluoro-but-3-enyl)-phosphonic 
acid diisopropyl ester 
III/35b 2.2:1028 
34200 C10H20F2IO3P 
384.14 
133827-35-7 
I F F 
P 
O 
O 
C2H5 
O C2H5 
H7C3 
+ 
Diethyl 1,1-difluoro-3-
iodohexylphosphonate; 
((R,S)-1,1-Difluoro-3-iodo-hexyl)phosphonic 
acid diethyl ester 
III/35a 3.2:945; 
III/35b 2.2:1030 
I F F 
O 
P C2H5H7C3O O C2H5 
34201 C10H20F2IO4P 
400.14 
I F F 
P 
O 
O 
C2H5 
O C2H5 
HO 
((R,S)-1,1-Difluoro-6-hydroxy-3-iodo-hexyl)phosphonic 
acid diethyl ester 
III/35a 3.2:946; 
III/35b 2.2:1031 
+ 
I F F 
P 
O 
O 
C2H5 
O C2H5 
HO
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34202 C10H20F2OSi 
222.35 
F 
F 
O 
Si 
CH3 
CH3 
(1-Difluoromethylene-4-methyl-pentyloxy)-
trimethyl-silane 
III/35b 2.2:1032 
34203 C10H20F2O2Si 
238.35 
Si 
O CH3 2,2-Difluoro-4-trimethylsilanyl-butyric acid 
isopropyl ester 
III/35b 2.2:1033 
O CH3 
F F 
34204 C10H20F3NO 
227.27 
C6H13F3C 
OH NH2 (2R,4R)-4-Amino-1,1,1-trifluoro-decan-2-ol III/35b 2.2:1034 
34205 C10H20F3NO 
227.27 
C6H13F3C 
OH NH2 (2R,4S)-4-Amino-1,1,1-trifluoro-decan-2-ol III/35b 2.2:1035 
34206 C10H20F4O6P2 
374.2 P 
O 
H5C2 
OOH5C2 
P 
F F 
O 
C2H5 
[2-(Diethoxy-phosphoryl)-1,1,2,2-
tetrafluoro-ethyl]-phosphonic acid diethyl 
ester 
III/35b 2.2:1036 
F F O O C2H5 
34207 C10H20MoN2O2S4 
424.48 
19680-83-2 
S 
Mo(2+) 
S 
S(-) 
S(-) 
N 
H5C2 
H5C2 
N 
C2H5 
C2H5 
O 
O 
C10H20MoN2O2S4 III/35e 2.2.7:4732 
34208 C10H20NOP 
201.25 
(Di-tert-butyl-phosphinoyl)-acetonitrile III/35a 3.2:947 
P 
O CN 
34209 C10H20N2O 
184.28 
H5C2 
H5C2 
CH3 
CH3 
O 
N 
NH 
4,4-Diethyl-1-isopropyl-imidazolidin-2-one III/35c2 2.2:990 
34210 C10H20N2O2 
200.28 
O 
NH 
N,N'-Di-tert-butyl-oxalamide III/35e 2.2.1:1264 
NH 
O 
34211 C10H20N4S 
228.36 
H5C2 
C2H5 
N C2H5 
C2H5 
N 
N 
S 
N 
N,N,N',N'-Tetraethyl-[1,3,4]thiadiazole-2,5-
diamine 
III/35c2 2.2:991 
34212 C10H20O 
156.26 C2H5H5C2 
O 
H5C2 C2H5 4,4-Diethyl-hexan-3-one III/35e 2.2.1:1265 
34213 C10H20O 
156.26 HO 
4-tert-Butyl-cyclohexanol (cis) III/35e 2.2.2:2934 
+ 
HO 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34214 C10H20O 
156.26 HO 
4-tert-Butyl-cyclohexanol (trans) III/35e 2.2.2:2935 
+ 
HO 
34215 C10H20O2 
172.26 
CH3 
CH3 
H3C 
O 
O 
CH3H3C 3-((E)-2-Methoxy-vinyloxy)-2,4-dimethyl-
pentane 
III/35e 2.2.2:2936 
34216 C10H20O2 
172.26 
CH3 
CH3H3C 
O 
O 
CH3H3C 3-((Z)-2-Methoxy-vinyloxy)-2,4-dimethyl-
pentane 
III/35e 2.2.2:2937 
34217 C10H20O2 
172.26 
OH 
O 
OH 
O+ 
2-((R,S)-2,6,6-Trimethyl-tetrahydro-pyran-
2-yl)-ethanol 
III/35c2 2.2:992 
34218 C10H20O2 
172.26 
O 
O 
CH3 
O 
O 
CH3 
+ 
(2S*,6R*)-2-tert-Butyl-6-methoxy-
tetrahydro-pyran 
III/35e 2.2.2:2938 
34219 C10H20O2 
172.26 
O 
O 
CH3 
O 
O 
CH3 
+ 
(2S*,6S*)-2-tert-Butyl-6-methoxy-
tetrahydro-pyran 
III/35e 2.2.2:2939 
34220 C10H20O3 
188.26 
O 
O OHH3C 
H3C 
+ 
2-(5-Isopropyl-[1,3]dioxan-2-yl)-propan-2-ol III/35e 2.2.2:2940 
OH3C 
O OHH3C 
34221 C10H20O3 
188.26 
O 
O OHH3C 
H3C 
+ 
2-(5-Isopropyl-[1,3]dioxan-2-yl)-propan-2-ol III/35e 2.2.2:2941 
OH3C 
O OHH3C 
34222 C10H20O3S 
220.33 
O 
S 
O (1R,2R)-2-(2-Methyl-propane-2-sulfonyl)-
cyclohexanol 
III/35e 2.2.5:4279 
OH 
34223 C10H20O3S 
220.33 
O 
O 
H3C 
S O 
(4R,7S)-4,5,5,6,6,7-Hexamethyl-
[1,3,2]dioxathiepane 2-oxide 
III/35e 2.2.5:4280 
H3C 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34224 C10H20O5 
220.26 O O 
15-Crown-5; 
15-Crown-5 ether; 
III/35e 2.2.2:2942 
33100-27-5 1,4,7,10,13-Pentaoxacyclopentadecane 
OO 
O 
34225 C10H20O6 
236.26 
O 
OH 
OH3C 
OH3C 
O 
CH3 
O 
CH3 
O 
OH 
OH3C 
OH3C 
O 
CH3 
O 
CH3 
+ 
(2S*,3S*,4S*,5R*,6R*)-3,4,5-Trimethoxy-6-
methoxymethyl-tetrahydro-pyran-2-ol 
III/35e 2.2.2:2943 
34226 C10H21As 
216.19 
H9C4 
As 
C4H9 
CH2 
Dibutyl-vinyl-arsane III/35c4 2.2:1070 
34227 C10H21B 
152.09 
B 
C2H5 C10H21B III/35a 2.2:940 
C2H5H5C2 
C2H5 
34228 C10H21B 
152.09 
BH Cyclohexyl-tert-butyl-borane III/35a 2.2:941 
34229 C10H21BO3 
200.08 
B 
O 
CH3 
O 
CH3 
O 
C2H5 
C10H21BO3 III/35a 2.2:942 
34230 C10H21ClSn 
295.42 
H9C4 
H9C4 Cl 
Sn CH2 
Vinyl-dibutyl-chloro-stannane III/35c4 2.2:1071 
34231 C10H21F2O3P 
258.24 
PH11C5 
F F 
O 
C2H5 
O O C2H5 
(1,1-Difluoro-hexyl)-phosphonic acid diethyl 
ester 
III/35b 2.2:1037 
34232 C10H21F3O2Si 
258.35 Si 
O OH (R,S)-3-(tert-Butyl-dimethyl-silanyloxy)-
4,4,4-trifluoro-butan-1-ol 
III/35b 2.2:1038 
CF3 
+ 
O OH 
Si 
CF3 
34233 C10H21F3O2Si 
258.35 F3C O 
Si 
(R,S)-4-(tert-Butyl-dimethyl-silanyloxy)-
1,1,1-trifluoro-butan-2-ol 
III/35b 2.2:1039 
OH 
+ 
F3C O 
Si 
OH 
34234 C10H21GeNO3 
275.92 
GeO O 
O C10H21GeNO3 III/35b 3.2:1310 
N 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34235 C10H21IO3OsP2 
568.35 
O 
C 
O 
C 
Os(+) 
C 
P 
H3C 
P O 
I(-) 
C10H21IO3OsP2 III/35c4 2.2:1072 
34236 C10H21N 
155.28 
NH2 
NH2 
+ 
C10H21N III/35b 3.2:1311 
34237 C10H21N 
155.28 
NH2 
NH2 
+ 
C10H21N III/35b 3.2:1312 
34238 C10H21NOS 
203.34 
S 
(E,Z)-tert-Butyl-[2-(2-methyl-propane-2-
sulfinyl)-vinyl]-amine 
III/35e 2.2.5:4281 
NH 
O 
34239 C10H21NO4Si 
247.36 
H3C 
CH3 
C10H21NO4Si III/35c4 2.2:1073 
N 
Si 
OO O 
O 
H3C 
34240 C10H21N2O3P 
248.26 P 
O O CH3 
CH3 
(4-Cyclopropylmethyl-piperazin-1-yl)-
phosphonic acid dimethyl ester 
III/35b 3.2:1313 
N O 
N 
34241 C10H21O2P 
204.25 P 
O (2S,4R)-2,4-Di-tert-butyl-
[1,3,2]dioxaphospholane 
III/35a 3.2:948 
O 
34242 C10H21O2P 
204.25 P 
O (2S,4S)-2,4-Di-tert-butyl-
[1,3,2]dioxaphospholane 
III/35a 3.2:949 
O 
34243 C10H21O2P 
204.25 PH 
O 
O 
C4H9 
C10H21O2P III/35c4 2.4:3370 
34244 C10H21O4P 
236.25 C2H5OO 
Phosphoric acid cyclohexyl ester diethyl 
ester 
III/35a 3.2:950 
P C2H5 
O O 
34245 C10H21O4P 
236.25 P 
O 
OHO 
C2H5 
O 
C2H5 
(1-Hydroxy-cyclohexyl)-phosphonic acid 
diethyl ester 
III/35a 3.2:951 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34246 C10H22BCl2N2 
252.01 N(+) 
B 
N 
C10H22BCl2N2 
+ III/35a 2.2:943 
Cl Cl 
34247 C10H22BF2N2 
219.1 N(+) 
B 
N 
C10H22BF2N2 
+ III/35a 2.2:944 
F F 
34248 C10H22BNOSi 
211.18 
Si 
N 
B 
O 
H5C2 
CH3 
CH3H5C2 
5-Ethoxy-4-ethyl-1,2,2,3-tetramethyl-2,5-
dihydro-1H-[1,2,5]azasilaborole 
III/35e 2.2.2:2944 
34249 C10H22BNO2Si 
227.18 O O 
C2H5 C10H22BNO2Si III/35a 2.2:945 
BH3C 
Si 
N 
H5C2 
CH3 
34250 C10H22BNO2Si 
227.18 
CH3 
N 
H5C2 
O 
O 
B Si 
CH3 
H5C2 
4-Ethyl-5-ethylperoxy-1,2,2,3-tetramethyl-
2,5-dihydro-1H-[1,2,5]azasilaborole 
III/35e 2.2.6:4460 
34251 C10H22B2 
163.9 B 
C2H5 
H3C 
B 
CH3 
H5C2 
C2H5 
C10H22B2 III/35a 2.2:946 
34252 C10H22B2N2 
191.92 
N 
B 
CH3 
H3C C2H5 
C10H22B2N2 III/35a 2.2:947 
N 
BH3C C2H5 
CH3 
34253 C10H22B2N2S2 
256.05 S N C2H5 
H5C2 C10H22B2N2S2 III/35a 2.2:948 
B B 
S N C2H5 
H5C2 
34254 C10H22B8Co2 
346.64 
5,8-(CpCo)2B8H12 III/35a 2.2:949 
34255 C10H22B10N2 
278.4 
B10H12(Py)2 III/35a 2.2:950 
34256 C10H22B18Cu2Mo2 
O6 
751.85 
[Mo2Cu2(-CO)4(CO)2(-H)2(C2B9H10)2]2-III/35a 2.2:951 
34257 C10H22Be 
151.29 Be 
C10H22Be III/35c4 2.2:1074 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34258 C10H22ClN 
191.74 
NH3(+) 
Cl(-) 
NH3(+) 
Cl(-) 
+ 
C10H22ClN III/35b 3.2:1314 
34259 C10H22ClN 
191.74 
NH3(+) 
Cl(-) 
NH3(+) 
Cl(-) 
+ 
C10H22ClN III/35b 3.2:1315 
34260 C10H22Cl2N2Ru 
342.27 NH2 
NH2 
Ru 
Cl 
Cl 
CH3 
CH3 
C10H22Cl2N2Ru III/35c4 2.2:1075 
34261 C10H22Cl3Ta 
429.59 
C10H22Cl3Ta III/35c4 2.2:1076 
Cl 
TaCl 
Cl 
34262 C10H22FOP 
208.25 
F 
P 
O 
H5C2 
CH3 
CH3 
C10H22FOP III/35a 3.2:952 
34263 C10H22FOP 
208.25 P 
O F CH3 
CH3 
H5C2 
P 
O F CH3 
CH3 
H5C2 
+ 
C10H22FOP III/35b 2.2:1040 
34264 C10H22F2IO3PSi 
414.24 
133827-39-1 
I F F 
P 
O 
O 
C2H5 
O C2H5 
Si 
I F F 
P 
O 
O 
C2H5 
O C2H5 
Si 
+ 
Diethyl 1,1-difluoro-3-iodo-3-
(trimethylsilyl)propylphosphonate; 
((R,S)-1,1-Difluoro-3-iodo-3-
trimethylsilanyl-propyl)-phosphonic acid 
diethyl ester 
III/35a 3.2:953; 
III/35b 2.2:1041 
34265 C10H22F3NO2Si2 
301.45 Si 
NH 
O 
O 
Si 
C10H22F3NO2Si2 III/35b 2.2:1042 
CF3 
+ 
O 
Si 
NH O 
Si 
CF3 
34266 C10H22F6OP2Pt 
529.3 
Pt 
P P 
O 
CF3 
CF3 C10H22F6OP2Pt III/35a 3.2:954 
34267 C10H22GeO2 
246.92 Ge 
OH7C3 
O 
C2H5 
H5C2 C2H5 C10H22GeO2 III/35e 2.2.1:1266 
34268 C10H22MoN2O6S2 
426.36 
MoO2[HSCH2-CH(NH2)COOEt]2 III/35e 2.2.7:4733 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34269 C10H22NO2PSe 
298.22 
NH 
SeO 
O 
P 
CH3 
NH 
SeO 
O 
P 
CH3 
+ 
tert-Butyl-((2S*,6S*)-4,4,6-trimethyl-2-
selenoxo-2.5-[1,3,2]dioxaphosphinan-2-yl)amine 
III/35a 3.2:955 
34270 C10H22NO2PSe 
298.22 
NH 
SeO 
O 
P 
CH3 
NH 
SeO 
O 
P 
CH3 
+ 
tert-Butyl-((2R*,6S*)-4,4,6-trimethyl-2-
selenoxo-2.5-[1,3,2]dioxaphosphinan-2-yl)amine 
III/35a 3.2:956 
34271 C10H22NO3PS2 
299.39 
See appendix No: 34271 ((R,S)-Methylsulfanyl-propylthiocarbamoyl-
methyl)-phosphonic acid diethyl ester 
III/35c4 2.2:1077 
34272 C10H22N2 
170.29 N 
CH3 
N 
1-(2,2-Dimethyl-propyl)-4-methyl-piperazine III/35b 3.2:1316 
34273 C10H22Sn2 
379.66 
Sn 
Sn 
1,4-Bis-trimethylstannanyl-but-2-yne III/35c4 2.2:1078 
34274 C10H22Zn 
207.69 Zn 
Bis-(2,2-dimethylpropyl)-zinc III/35c4 2.2:1079 
34275 C10H23BCl3N2P 
319.45 
(delocalized system) 
CH3 Cl Cl 
C10H23BCl3N2P III/35a 2.2:952 
B(-) P 
H3C CH3 
H3C N N(+) Cl 
34276 C10H23BF4N2Pd 
364.51 
(delocalized system) 
Pd(+) 
CH2 N(+) 
B(-) 
F F 
C10H23BF4N2Pd III/35c4 2.2:1080 
CH(-) N F F 
H3C 
34277 C10H23BO2 
186.1 
O 
B 
O 
C2H5 C10H23BO2 III/35e 2.2.2:2946 
34278 C10H23B4P 
217.51 BHP 
BH BH 
BH 
C2H5 
C2H5 
C10H23B4P III/35c4 2.2:1081 
34279 C10H23B9Pd 
346.99 
3-(1,5-C8H12)-3,1,2-PdC2B9H11 III/35a 2.2:953 
34280 C10H23ClF2OSi2 
288.91 
SiSi 
OHCl 
F 
F 
1-Chloro-1,1-difluoro-3-trimethylsilanyl-2-
trimethylsilanylmethyl-propan-2-ol 
III/35b 2.2:1043 
34281 C10H23F2OP 
228.26 
135303-67-2 P 
F 
F 
O 
C2H5CH3 
CH3 
tert-
Butylethoxydifluoroisobutylphosphorane 
III/35a 3.2:957; 
III/35b 2.2:1044 
34282 C10H23F2O3PSi 
288.34 
133827-46-0 
Si 
F F 
P 
O O C2H5 
O 
C2H5 
Diethyl 1,1-difluoro-3-
(trimethylsilyl)propylphosphonate; 
(1,1-Difluoro-3-trimethylsilanyl-propyl)-
phosphonic acid diethyl ester 
III/35a 3.2:958; 
III/35b 2.2:1045 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34283 C10H23NO2Si 
217.38 
O 
Si 
ON 
6-tert-Butyl-2,2-dimethyl-
[1,3,6,2]dioxazasilocane 
III/35e 2.2.2:2947 
34284 C10H23N2O3P 
250.28 
N 
P 
O O CH3 
O 
CH3CH3 
(4-Isobutyl-piperazin-1-yl)-phosphonic acid 
dimethyl ester 
III/35b 3.2:1317 
N 
H3C 
34285 C10H23N2P 
202.28 N 
H3C 
H3C 
N CH3 
H3C 
P 
C10H23N2P III/35c4 2.2:1082 
34286 C10H23O3P 
222.26 
H5C2 C2H5O 
PH 
O 
O 
C10H23O3P III/35a 3.2:960 
34287 C10H23O3P 
222.26 
22289-00-5 
O 
PH 
O 
O 
Phosphonic acid, bis(2,2-dimethylpropyl) 
ester 
III/35a 3.2:959 
34288 C10H23O4PSi 
266.35 
H3C 
P 
O O C2H5 
O 
C2H5 
O 
Si 
((Z)-2-Trimethylsilanyloxy-propenyl)-
phosphonic acid diethyl ester 
III/35c4 2.2:1083 
34289 C10H23O4PSi 
266.35 
O 
P 
O O C2H5 
O 
C2H5 
CH3 
Si 
((E)-2-Trimethylsilanyloxy-propenyl)-
phosphonic acid diethyl ester 
III/35c4 2.2:1084 
34290 C10H23O5P 
254.26 
H5C2 
O 
P 
O 
O 
O 
O 
C2H5 
C2H5 
C2H5 
(2,2-Diethoxy-ethyl)-phosphonic acid 
diethyl ester 
III/35c4 2.2:1085 
34291 C10H23P 
174.26 H11C5 
PH 
C5H11 
Dipentyl-phosphane III/35a 3.2:961 
34292 C10H24AsI 
346.12 
H7C3 
As(+) 
C3H7 
I(-) 
Methyl-tripropyl-arsonium iodide III/35c4 2.2:1086 
H7C3 
34293 C10H24As2B9Rh 
494.35 
[3-(h5-C5Me5)-closo-3,1,2-RhAs2B9H9] III/35a 2.2:954 
34294 C10H24BClGeN2 
291.21 
Cl 
N 
B 
N 
Ge 
C10H24BClGeN2 III/35a 2.2:955 
34295 C10H24BClO 
206.56 OH3C 
C2H5 C10H24BClO III/35a 2.2:956 
C2H5BH 
ClCH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34296 C10H24BFN2Si 
230.21 
F 
N 
B 
N 
Si 
C10H24BFN2Si III/35a 2.2:957 
34297 C10H24BN 
169.12 
C10H24BN III/35b 3.2:1318 
B 
N 
CH3H3C 
34298 C10H24BNOSi 
213.2 
O 
H3C 
NH2 
B Si 
H5C2 
C10H24BNOSi III/35e 2.2.6:4461 
CH3H5C2 
34299 C10H24B2N2 
193.93 
CH3 
N 
B 
N 
C10H24B2N2 III/35a 2.2:958 
B 
CH3 
34300 C10H24B2O2 
197.92 O 
H3C C10H24B2O2 III/35a 2.2:959; 
III/35e 2.2.2:2948 
B 
B 
O 
CH3 
34301 C10H24B4 
187.54 
(n-Bu)2C2B4H6 III/35a 2.2:960 
34302 C10H24ClN2P 
238.74 
N 
P 
Cl 
N 
CH3 
CH3 
H5C2 
C10H24ClN2P III/35b 3.2:1319 
C2H5 
CH3H3C 
34303 C10H24N2OS 
220.38 
N 
S 
O 
N 
CH3 
CH3 
H5C2 
C10H24N2OS III/35b 3.2:1320 
C2H5 
CH3H3C 
34304 C10H24N2Si 
200.4 N 
CH3 
N 
Si 
1-Methyl-4-(2-trimethylsilanyl-ethyl)-
piperazine 
III/35b 3.2:1321 
34305 C10H24N3P 
217.29 
N 
CH3H3C 
CH3 
(1,3-Dimethyl-[1,3,2]diazaphospholidin-2-
yl)-diisopropyl-amine 
III/35b 3.2:1322 
P N 
N CH3 
CHH3C 
34306 C10H24NiO3P2 
312.94 
O CH3 C10H24NiO3P2 III/35c4 2.2:1087 
OP 
Ni 
PH3C 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34307 C10H24P2 
206.25 
P 
CH3 1-tert-Butyl-2-ethyl-1-isopropyl-2-methyl-
diphosphane 
III/35a 3.2:962, 
963 
P C2H5 
H3C CH3 
34308 C10H24Sn2 
381.68 Sn 
(Z)-1,4-Bis-trimethylstannanyl-but-1-ene III/35c4 2.2:1088 
Sn 
34309 C10H24Sn2 
381.68 Sn 
Sn 
(E)-1,4-Bis-trimethylstannanyl-but-1-ene III/35c4 2.2:1089 
34310 C10H24Sn2 
381.68 
Sn 
Sn 
(E)-1,4-Bis-trimethylstannanyl-but-2-ene III/35c4 2.2:1090 
34311 C10H25AsClN 
269.69 
H7C3 
As(+) 
C3H7 
H7C3 NH 
Cl(-) 
CH3 C10H25AsClN III/35c4 2.2:1091 
34312 C10H25BN2 
184.13 NN 
BH3 
CH3 
H3C 
CH3 
CH3 
CH3 
NN 
BH3 
CH3 
H3C 
CH3 
CH3 
CH3 
+ 
C10H25BN2 III/35a 2.2:961 
34313 C10H25BS 
188.18 
147100-62-7 
BH2 S 
CH3H3C CH3 
CH3 BH2 S 
CH3H3C CH3 
CH3+ 
Boron, [2,2-dimethyl-1-(1-
methylethyl)propyl]-
dihydro[thiobis[methane]]-,; 
DibBH2 
.SMe2 
III/35a 2.2:962 
34314 C10H25B4Co 
247.48 
See appendix No: 34314 C10H25B4Co III/35c4 2.2:1092 
34315 C10H25ClNPSi 
253.82 
CH3H3C C10H25ClNPSi III/35b 3.2:1324 
N 
P Si 
Cl 
34316 C10H25ClN3P3S5 
476.02 P 
S S C2H5H5C2 2-Chloro-2,4,4,6,6-pentakis-ethylsulfanyl-
2.5,4.5,6.5-[1,3,5,2,4,6]triazatriphosphinine 
III/35a 3.2:964 
N N C2H5H5C2 
SS P P 
ClS N 
C2H5 
34317 C10H25FN3P 
237.3 FN 
C2H5 
H5C2 
C10H25FN3P III/35a 3.2:965 
H5C2 
N 
P 
N 
C2H5 
C2H5 
34318 C10H25NO2P2 
253.26 
H5C2 
O 
H3C CH3 C10H25NO2P2 III/35a 3.2:966 
H5C2 
O 
P 
NH 
P CH3 
CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34319 C10H25NO2P2 
253.26 H5C2 
OH5C2 
P 
NH CH3 C10H25NO2P2 III/35a 3.2:967 
O P CH3 
H3C CH3 
34320 C10H25NSi 
187.4 
Si 
N 
C2H5 
C2H5 
(tert-Butyl-dimethyl-silanyl)-diethyl-amine III/35b 3.2:1325 
34321 C10H25N2P 
204.29 
N 
C2H5 
NPH 
C2H5 [(Diethylaminomethyl-phosphanyl)-methyl]-
diethyl-amine 
III/35a 3.2:968 
H5C2 C2H5 
34322 C10H25N2PSe 
283.25 
C2H5 
N 
P 
Se C2H5 
C2H5 
N 
C2H5H5C2 
C10H25N2PSe III/35a 3.2:969 
34323 C10H25O3PSSi 
284.43 O 
P 
O O 
SiH5C2 
H5C2 
O 
P 
O O 
SiH5C2 
H5C2 
+ 
((R,S)-1-Methylsulfanyl-1-trimethylsilanyl-
ethyl)-phosphonic acid diethyl ester 
III/35a 3.2:970 
CH3S CH3S 
34324 C10H26BNOSn 
305.82 
H3C CH3 C10H26BNOSn III/35c4 2.2:1093 
Sn 
B 
N CH3 
O 
CH3 
CH3 
34325 C10H26B8CoN 
305.74 
[Me4N]+ [2-CpCo-closo-1-B8CH9]-III/35a 2.2:595 
34326 C10H26CoN6O4 
353.28 
CH3 C10H26CoN6O4 III/35c4 2.2:1094 
NH CH3 
CH3 
NH 
Co 
NH 
NH NO2 
NO2 
CH3 
34327 C10H26N2O2Si 
234.41 
H3C 
N Si 
O 
CH3 
O 
N 
CH3 
CH3 2-[(2-Dimethylamino-ethoxy)-dimethyl-
silanyloxy]-ethyl-dimethyl-amine 
III/35b 3.2:1326 
34328 C10H26Ni2O4P2 
389.64 
O C10H26Ni2O4P2 III/35c4 2.2:1095 
OP 
Ni Ni 
O P 
O 
34329 C10H26Sn2 
383.69 Sn 
Sn 
1,4-Bis-trimethylstannanyl-butane III/35c4 2.2:1096 
34330 C10H27AgSeSi3 
418.41 Si Si 
C10H27AgSeSi3 III/35c4 2.2:1097 
Ag 
Se Si 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34331 C10H27ClNPSi2 
283.93 Si 
C10H27ClNPSi2 III/35b 3.2:1327 
N 
P Si 
Cl 
34332 C10H27ClO2Si3 
299.03 
Cl C10H27ClO2Si3 III/35e 2.2.6:4462 
Si Si Si 
O O 
34333 C10H27CuSeSi3 
374.08 Si Si 
C10H27CuSeSi3 III/35c4 2.2:1098 
Cu 
Se Si 
34334 C10H27GePSn 
369.62 Ge 
P 
Sn 
C10H27GePSn III/35a 3.2:971 
34335 C10H27NO2Si2 
249.5 Si 
O 
NH 
O 
Si 
Bis-(2-trimethylsilanyloxy-ethyl)-amine III/35b 3.2:1328 
34336 C10H27PS3Si2 
330.66 S 
C10H27PS3Si2 III/35a 3.2:972 
P SiSi 
S S 
34337 C10H27PSn2 
415.68 Sn 
P 
Sn 
C10H27PSn2 III/35a 3.2:973 
34338 C10H28BNSn2 
410.53 
N 
C2H5 
Sn 
C10H28BNSn2 III/35a 2.2:964; 
III/35c4 2.2:1099 
B C2H5 
Sn 
34339 C10H28B8Si2 
290.99 
(Me3Si)2B8C4H10 III/35a 2.2:965 
34340 C10H28B9Co 
304.56 
[6-(.6-C5Me5)CoB9H13] III/35a 2.2:966 
34341 C10H28B9Rh 
348.53 
[6-(.6-C5Me5)RhB9H13] III/35a 2.2:967 
34342 C10H28ClPSi3 
299.01 
PHCl Si 
Si Si 
C10H28ClPSi3 III/35a 3.2:974 
34343 C10H28N7O2P3 
371.3 
N N 
H3C 
CH3 
CH3 
H3C 
C10H28N7O2P3 III/35a 3.2:975 
P 
O 
N NH3C 
PPN 
O 
NNH3C 
CH3 
H3C 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34344 C10H29ClO3Si4 
345.13 O 
Cl 
Si 
Chloromethyltris(trimethylsiloxy)silane III/35e 2.2.6:4463 
Si Si 
O O 
Si 
34345 C10H30Al2N2P2 
294.27 
P N 
Al 
N P 
Al 
C10H30Al2N2P2 III/35c4 2.2:1100 
34346 C10H30Al2O2Si2 
292.48 
Si O 
Al 
O Si 
Al 
C10H30Al2O2Si2 III/35c4 2.2:1101 
34347 C10H30BLiSi3 
252.35 
Si 
SiSi 
BH3(-) Li(+) 
C10H30BSi3Li III/35a 2.2:969 
34348 C10H30BSi3 
245.41 Si Si 
Si BH3(-) 
C10H30BSi3 
-III/35a 2.2:969 
34349 C10H30BSi3 
245.41 
B(-) 
Si 
SiSi 
C10H30BSi3 III/35a 2.2:968 
34350 C10H30B2N2 
199.98 
23033-72-9 BH2 
N BH2N 
Boron, m-1,4-butanediylbis(N,N-
dimethylmethanamine)tetrahydrodi- 
III/35a 2.2:970 
34351 C10H30B2N2Sn2 
437.36 N 
CH3H3C C10H30B2N2Sn2 III/35a 2.2:971 
BSn 
B Sn 
N 
CH3H3C 
34352 C10H30B8PtS2 
496.04 
Pt[SEt2]2C2B8H10 III/35a 2.2:972 
34353 C10H30B18Ni2O2 
494.33 
[Ni2(CO)2(.5-C2B9H9Me2)2] III/35a 2.2:973 
34354 C10H30Ga2O2Si2 
377.96 
Si O 
Ga 
O Si 
Ga 
C10H30Ga2O2Si2 III/35c4 2.2:1102 
34355 C10H30GeO3Si3 
355.24 O Si 
C10H30GeO3Si3 III/35c4 2.2:1103 
Si Ge 
O O 
Si 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C10 
34356 C10H30In2O2Si2 
468.15 
Si O 
In 
O Si 
In 
C10H30In2O2Si2 III/35c4 2.2:1104 
34357 C10H30Ni2O2P2 
361.68 
Ni 
O 
Ni 
PP 
CH3 C10H30Ni2O2P2 III/35c4 2.2:1105 
O 
CH3 
34358 C10H30O3Si3Sn 
401.29 O Si 
C10H30O3Si3Sn III/35c4 2.2:1106 
Si Sn 
O O 
Si 
34359 C10H32Al2BN3 
259.15 N 
Al 
N 
Al 
N 
BH2 C10H32Al2BN3 III/35a 2.2:974 
34360 C10MnMoO10 
430.98 
Mo(-) 
C 
O 
C 
Mn 
O 
CCO 
C 
O 
C 
O 
O 
C10MnMoO10 
-III/35e 2.2.7:4673, 
4734 
C CC C 
O OO O 
34361 C10MnO10W 
518.88 
W(-) 
C 
O 
C 
Mn 
O 
CCO 
C 
O 
C 
O 
O 
C10MnO10W-III/35e 2.2.7:4674, 
4954 
C CC C 
O OO O 
34362 C10Mn2O10 
389.98 
10170-69-1 
Mn 
C 
C 
O 
O 
C 
Mn 
O 
O 
C 
C 
CO 
C 
O 
C 
O 
C 
O 
C 
O 
O 
Decacarbonyldimanganese; 
Decacarbonyldimanganese(0); 
Manganese carbonyl; 
Manganese, decacarbonyldi-, (Mn-Mn) 
III/35e 2.2.7:4675 
34363 C10Mo2O10 
471.98 
Mo(-) 
C 
O 
C 
Mo(-) 
O 
CCO 
C 
O 
C 
O 
O 
C10Mo2O10 
2-III/35e 2.2.7:4735 
C CC C 
O OO O 
34364 C10O10W2 
647.78 
W(-) 
C 
O 
C 
W(-) 
O 
CCO 
C 
O 
C 
O 
O 
C10O10W2 
2-III/35e 2.2.7:4955 
C CC C 
O OO O 
34365 C11H2F3O10Os3P 
952.79 
See appendix No: 34365 C11H2F3O10Os3P III/35c4 2.2:1107 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34366 C11H3Co3O9 
455.94 
13682-04-7 
Co 
Co 
Co 
C 
C 
O 
C 
O C 
O 
C 
O 
C 
Cobalt, nonacarbonyl-3-ethylidynetri-, 
triangulo; 
Cobalt, nonacarbonylethylidynetri-; 
Nonacarbonyl(3-ethylidyne)tricobalt; 
III/35e 2.2.7:4576 
O OC 
O 
C 
OC NSC 179449 
O 
34367 C11H4ClF7O 
320.59 
O 1-Chloro-4-heptafluoropent-1-ynyloxy-
benzene 
III/35b 2.2:1046 
C3F7 
Cl 
34368 C11H5BFe3O10 
475.5 
Fe3(CO)10BH2(CH3) III/35a 2.2:975 
34369 C11H5F3N2O 
238.16 
O 
NF3C 
NC 
Ph 
2-Phenyl-4-trifluoromethyl-oxazole-5-
carbonitrile 
III/35b 2.2:1047 
34370 C11H5F7O 
286.15 Ph 
O 
C3F7 
Heptafluoropent-1-ynyloxy-benzene III/35b 2.2:1048 
34371 C11H5MnO5 
272.09 C 
Mn 
Ph O 
O 
C 
O 
C 
O 
C 
C 
Phenyl-pentacarbonyl-manganese III/35e 2.2.7:4676 
O 
34372 C11H6BrNO6 
328.07 
O2N 
Br 
COOH 
O 
O 
(E)-2-(5-Bromo-furan-2-yl)-3-(5-nitro-furan-
2-yl)-acrylic acid 
III/35c2 2.2:993 
34373 C11H6BrO5PW 
512.88 O OC 
O (Phenyl-bromo-phosphino)-pentacarbonyl-
tungsten 
III/35c4 2.2:1108 
CC 
W 
O 
CC 
O PH 
PhBr 
34374 C11H6ClNOS 
235.69 
N 
O 
S 
Cl 
6-Chloro-10-oxa-9-thia-1-aza-anthracene III/35e 2.2.2:2949 
34375 C11H6ClN3O 
231.64 
Cl 
N 
N 
N 
3-(4-Chloro-phenyl)-isoxazolo[4,5-
d]pyridazine 
III/35c2 2.2:994 
O 
34376 C11H6ClO5PW 
468.43 O OC 
O (Phenyl-chloro-phosphino)-pentacarbonyl-
tungsten 
III/35c4 2.2:1109 
CC 
W 
O 
CC 
O PH 
PhCl 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34377 C11H6CrO4 
254.16 
C11H6CrO4 III/35c4 2.2:1110 
O 
Cr C O 
C 
O C 
O 
34378 
270.16 
C11H6CrO5 
O 
O C11H6CrO5 III/35c4 2.2:1111 
CrCO 
C 
OC 
O 
34379 C11H6FO5PW 
451.98 
W 
C 
O 
C 
OC 
C 
O 
C 
O PH 
PhF C11H6FO5PW III/35c4 2.2:1112 
O 
34380 C11H6F6N2O 
296.17 
NH 
CF3 N-(2-Cyano-phenyl)-3,3,3-trifluoro-2-
trifluoromethyl-propionamide 
III/35b 2.2:1050 
CF3 
O 
CN 
34381 C11H6F17NO2 
507.14 
NO2F17C8 
1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-
Heptadecafluoro-9-methyl-9-nitro-decane 
III/35b 2.2:1051 
34382 C11H6Fe2O6 
345.85 
Fe Fe 
H2C CH2 
CO C O 
C11H6Fe2O6 III/35c4 2.2:1113 
CC 
C 
C 
O 
O 
O 
O 
34383 C11H6IO5PW 
559.88 O OC 
O C11H6IO5PW III/35c4 2.2:1114 
W 
O 
CC 
O PH 
CC 
PhI 
34384 C11H6N4O 
210.19 
N(+) 
O 
C(-) 
CN 
CNPh 
N C11H6N4O III/35e 2.2.3:3601 
34385 C11H6N4O7 
306.19 
O2N N 
NO2 
NO2 
O 
3,5-Dinitro-1-(4-nitro-phenyl)-1H-pyridin-4-
one 
III/35c2 2.2:995 
34386 C11H6OSSe 
265.19 
SeS O 
Selenochromeno[7,6-b]thiophen-7-one III/35c4 2.2:1117 
34387 C11H6OSSe 
265.19 
SSe O 
Selenolo[3,2-g]thiochromen-2-one III/35c4 2.2:1118 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34388 C11H6OSe2 
312.08 
Se Se O 
Selenolo[3,2-g]selenochromen-7-one III/35c4 2.2:1119 
34389 C11H6O2Se 
249.12 
O Se O 
Selenochromeno[7,6-b]furan-7-one III/35c4 2.2:1115 
34390 C11H6O2Se 
249.12 
Se O O 
Selenolo[3,2-g]chromen-2-one III/35c4 2.2:1116 
34391 C11H6O3 
186.16 
7H-Furo[3,2-g][1]benzopyran-7-one; 
Furo[3,2-g]chromen-7-one; 
III/35e 2.2.1:1267 
66-97-7 Furocoumarine 
O OO 
34392 C11H6O4 
202.16 
O 
O 
O 
O 
2-(Furan-2-carbonyl)-[1,4]benzoquinone III/35c2 2.2:996 
34393 C11H7ClN2O2 
234.64 
O2N 
Cl PhN 2-Chloro-3-nitro-6-phenyl-pyridine III/35c2 2.2:997 
34394 C11H7ClN4S 
262.72 
NH2 2-Amino-8-chloro-6H-pyrimido[5,4-
c]quinoline-5-thione 
III/35c2 2.2:998 
N N 
Cl SNH 
34395 C11H7ClO 
190.63 
O Cl Naphthalene-1-carbonyl chloride III/35e 2.2.1:1268 
34396 C11H7ClO 
190.63 
O 
Cl 
Naphthalene-2-carbonyl chloride III/35e 2.2.1:1269 
34397 C11H7CrNO3 
253.17 
Cr C O 
CN 
C11H7CrNO3 III/35c4 2.2:1120 
C 
O C 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34398 C11H7CrNO3 
253.17 
C11H7CrNO3 III/35c4 2.2:1121 
NH 
Cr C O 
C 
O C 
O 
34399 C11H7CrO6P 
318.14 O OC 
O C11H7CrO6P III/35c4 2.2:1122 
CC 
Cr 
O 
CC 
O PH 
PhHO 
34400 C11H7FO 
174.17 
O 
F 
3-Fluoro-azulene-1-carbaldehyde III/35b 2.2:1052 
34401 C11H7FO2 
190.17 
O (2-Fluoro-furan-3-yl)-phenyl-methanone III/35b 2.2:1053 
Ph 
OF 
34402 C11H7FO2 
190.17 
Ph 
(5-Fluoro-furan-2-yl)-phenyl-methanone III/35b 2.2:1054; 
III/35c2 2.2:999 
OF 
O 
34403 C11H7FO2 
190.17 
COOH 
F 
3-Fluoro-azulene-1-carboxylic acid III/35b 2.2:1055 
34404 C11H7F3N2 
224.18 
Ph 
N 
N 
CF3 2-Phenyl-5-trifluoromethyl-pyrimidine III/35b 2.2:1056 
34405 C11H7F3O2 
228.17 
O 
O 4-(3-Trifluoromethyl-phenyl)-5H-furan-2-
one 
III/35c2 2.2:1000 
F3C 
34406 C11H7F3O3 
244.17 
O OO CF3 
7-(2,2,2-Trifluoro-ethoxy)-chromen-2-one III/35b 2.2:1058 
34407 C11H7F4N 
229.17 
5875-75-2 
N 
CH3 
F 
N-methyl-5,6,7,8-tetrafluoro-1,4-dihydro-
1,4-iminonaphtalene; 
5,6,7,8-Tetrafluoro-9-methyl-1,4-dihydro-
1,4-epiazano-naphthalene 
III/35b 3.2:1329 
F 
FF 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34408 C11H7F13O2 
418.15 
F13C6 
O 
C2H5 
O 
(E,Z)-4,4,5,5,6,6,7,7,8,8,9,9,9-
Tridecafluoro-non-2-enoic acid ethyl ester 
III/35b 2.2:1059 
34409 C11H7NO 
169.18 NC 
O 4-Furan-2-yl-benzonitrile III/35e 2.2.2:2950 
34410 C11H7NOS 
201.24 
OH 4-Hydroxy-3-thiophen-2-yl-benzonitrile III/35c2 2.2:1001 
S 
CN 
34411 C11H7NO2 
185.18 
NC O 
CH3 
O 
4-Methyl-2-oxo-2H-chromene-7-carbonitrile III/35e 2.2.1:1271 
34412 C11H7NS 
185.25 
S 
N 
Thieno[3,2-b]quinoline III/35c2 2.2:1002 
34413 C11H7NS 
185.25 
N 
S Thieno[3,2-h]quinoline III/35c2 2.2:1003 
34414 C11H7NS2 
217.31 
N 
S 
S 
2-Benzo[1,3]dithiol-2-ylidene-2H-pyrrole III/35c2 2.2:1004 
34415 C11H7N3OS 
229.26 
O 
N 
NS 
NH 
11H-5-Thia-1,4,11-triaza-
dibenzo[a,d]cyclohepten-10-one 
III/35c2 2.2:1006 
34416 C11H7N3O2 
213.19 O(-) 
O 1-Oxy-3H-naphtho[1,2-e][1,2,4]triazin-2-
one 
III/35c2 2.2:1005 
N(+) NH 
N 
34417 C11H7N3O3 
229.19 
OHO 8-Amino-5-hydroxy-1H-benzo[f]indazole-
4,9-dione 
III/35c2 2.2:1007 
N 
NH 
NH2O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34418 C11H7N5O 
225.21 
CH3 
CN 
N 
N 
N 
N O 
4-Methyl-3-oxo-3,4-dihydro-
benzo[4,5]imidazo[1,2-b][1,2,4]triazine-2-
carbonitrile 
III/35c2 2.2:1008 
34419 C11H7N5O2 
241.21 N 
N 7-Nitro-4-[1,2,4]triazol-1-yl-quinoline III/35c2 2.2:1009 
N 
O2N N 
34420 C11H7N5O4 
273.2 
NO2 
CH3 
CN 
O 
O 
N 
N 
N 
4-Methyl-2-(2-nitro-phenyl)-3,5-dioxo-
2,3,4,5-tetrahydro-[1,2,4]triazine-6-
carbonitrile 
III/35c2 2.2:1010 
34421 C11H7O6PW 
449.98 O OC 
O C11H7O6PW III/35c4 2.2:1123 
CC 
W 
O 
CC 
O PH 
PhHO 
34422 C11H8ClFS 
226.7 
Cl 
F 
S 4-Chloromethyl-2-(4-fluoro-phenyl)-
thiophene 
III/35c2 2.2:1011 
34423 C11H8ClNO2 
221.64 
Cl 4-Chloro-1-methyl-2-oxo-1,2-dihydro-
quinoline-3-carbaldehyde 
III/35c2 2.2:1012 
O 
ON 
CH3 
34424 C11H8ClNO2S 
253.71 
O [7-Chloro-2-methoxy-benzo[d][1,3]thiazin-
(4Z)-ylidene]-acetaldehyde 
III/35c2 2.2:1013 
S 
Cl 
CH3ON 
34425 C11H8ClNO3 
237.64 
Cl O 
O 
CH3O 
NH 
7-Chloro-4-methoxy-2-oxo-1,2-dihydro-
quinoline-3-carbaldehyde 
III/35c2 2.2:1014 
34426 C11H8ClNO3S 
269.7 
O 
Cl 
1-Benzenesulfonyl-1H-pyrrole-2-carbonyl 
chloride 
III/35c2 2.2:1015 
O 
O 
Ph 
SN 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34427 C11H8Cl2F2S 
281.15 
H2C 
F Cl 
S 
F Cl 
Ph H2C 
F Cl 
S 
F Cl 
Ph 
+ 
((R,S)-2,2-Dichloro-3,3-difluoro-4-
methylene-cyclobutylsulfanyl)-benzene 
III/35b 2.2:1060 
34428 C11H8Cl2N2O4S 
335.16 Cl 
OO 
S 
5-(3,4-Dichloro-benzenesulfonyl)-N-
hydroxy-furan-2-carboxamidine 
III/35c2 2.2:1016 
O 
Cl 
N 
NH2 
HO 
34429 C11H8Cl3NOS 
308.61 O 
Ph 
NH 
Cl 
Cl 
Cl 
S 
O 
Ph 
NH 
Cl 
Cl 
Cl 
S+ 
N-((R,S)-2,5,5-Trichloro-2,5-dihydro-
thiophen-2-yl)-benzamide 
III/35c2 2.2:1017 
34430 C11H8CrO3 
240.18 
Cr C O 
C11H8CrO3 III/35c4 2.2:1124 
C 
O C 
O 
34431 C11H8CrO4 
256.18 
CrO C O 
C11H8CrO4 III/35c4 2.2:1126 
C 
C O 
O 
34432 C11H8CrO4 
256.18 
Cr 
C 
C 
O 
C 
O 
C 
O 
C11H8CrO4 III/35c4 2.2:1125 
O 
34433 C11H8CrO5 
272.17 O 
C11H8CrO5 III/35c4 2.2:1127 
CrO C O 
CH3 
C 
C O 
O 
34434 C11H8FN 
173.19 Ph 
F 
CN (2E,4Z)-4-Fluoro-5-phenyl-penta-2,4-
dienenitrile 
III/35b 2.2:1061 
34435 C11H8F3NO2 
243.18 
CF3 CF3 (R,S)-4-Benzyl-2-trifluoromethyl-2H-oxazol-
5-one 
III/35c2 2.2:1018 
N O N O+ 
Ph O Ph O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34436 C11H8F6O 
270.17 
F3C 
CF3 
HO (R,S)-1,1,1-Trifluoro-3-(4-trifluoromethyl-
phenyl)-but-3-en-2-ol 
III/35b 2.2:1062 
CH2 
+ 
HO 
CF3 
F3C 
CH2 
34437 C11H8MnNO3 
257.12 
(delocalized system) 
CH(-) 
Mn(+)C O 
CN 
C11H8MnNO3 III/35c4 2.2:1128 
C 
O C 
O 
34438 C11H8MoO4 
300.12 
Mo 
C 
C 
O 
C 
O 
C 
O 
C11H8MoO4 III/35c4 2.2:1129 
O 
34439 C11H8NO5PW 
449.0 O OC 
O C11H8NO5PW III/35c4 2.2:1130 
CC 
W 
O 
CC 
O PH 
PhH2N 
34440 C11H8N2 
168.19 
C11 H8 N2 III/35b 3.2:1331 
34441 C11H8N2 
168.19 
CN NH2 8-Amino-naphthalene-1-carbonitrile III/35b 3.2:1330 
34442 C11H8N2 
168.19 N 
NH 1H-Naphtho[1,2-d]imidazole III/35b 3.2:1333 
34443 C11H8N2 
168.19 
234-70-8 
N 
N 
Imidazo[2,1-a]isoquinoline III/35c2 2.2:1019 
34444 C11H8N2 
168.19 
244-63-3 N 
NH 
9H--Carboline; 
9H-Pyrido[3,4-b]indole 
III/35b 3.2:1332 
34445 C11H8N2O 
184.19 PhNC 
O 
N 
5-Benzyl-oxazole-2-carbonitrile III/35c2 2.2:1020 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34446 C11H8N2O 
184.19 
Di-pyridin-2-yl-methanone III/35b 3.2:1334 
N N 
O 
34447 C11H8N2O2 
200.19 
O 
Ph 
O 
Ph 
(R,S)-3-Benzoyl-4,5-dihydro-isoxazole-4-
carbonitrile 
III/35c2 2.2:1022 
NC NC+ 
N 
O 
N 
O 
34448 C11H8N2O2 
200.19 
Ph NO2 
N 
3-Nitro-5-phenyl-pyridine III/35c2 2.2:1021 
34449 C11H8N2O3 
216.19 
33400-78-1 
N 
HO NO2 2-(2-hydroxy-3-nitrophenyl)pyridine; 
2-Nitro-6-pyridin-2-yl-phenol 
III/35e 2.2.2:2951 
34450 C11H8N4 
196.21 
3-Pyridin-2-yl-[1,2,4]triazolo[4,3-a]pyridine III/35c2 2.2:1023 
N 
N 
N N 
34451 C11H8N4O 
212.21 
Ph O 
N 
NN 
N 5-Furan-2-yl-2-phenyl-2H-tetrazole III/35c2 2.2:1024 
34452 C11H8N4O 
212.21 
H5C2 
O 
CN 
NN 
2-Ethoxy-pyrrolo[1,2-b]pyridazine-5,7-
dicarbonitrile 
III/35c2 2.2:1025 
NC 
34453 C11H8N4O2 
228.21 
NO2 
H2N N 
NH 
5-Nitro-9H--carbolin-6-ylamine III/35c2 2.2:1027 
34454 C11H8N4O2 
228.21 CH3 
O 
N 
N 
3-Methyl-3H-1,3,9a,10-tetraaza-
anthracene-4,9-dione 
III/35c2 2.2:1026 
N 
N 
O 
34455 C11H8N4O3 
244.21 
CH3 
O 
N 
N 
4-Methyl-3-oxo-3,4-dihydro-
benzo[4,5]imidazo[1,2-b][1,2,4]triazine-2-
carboxylic acid 
III/35c2 2.2:1028 
N 
COOH 
N 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34456 C11H8N4O6 
292.2 O 
COOH 
N 
4-Methyl-2-(2-nitro-phenyl)-3,5-dioxo-
2,3,4,5-tetrahydro-[1,2,4]triazine-6-
carboxylic acid 
III/35c2 2.2:1029 
CH3 
O 
NN 
NO2 
34457 C11H8OS4 
284.44 
Ph SS (5-Methylsulfanyl-2-thioxo-[1,3]dithiol-4-yl)-
phenyl-methanone 
III/35c2 2.2:1030 
O S 
H3C S 
34458 C11H8O2 
172.18 
O 
O 
CH3 
2-Ethylidene-indan-1,3-dione III/35e 2.2.1:1274 
34459 C11H8O2 
172.18 
OH 
O 2-Hydroxy-naphthalene-1-carbaldehyde III/35e 2.2.1:1277 
34460 C11H8O3 
188.18 
55991-68-9 
O 
H3C 
O 
O 
5-p-Tolyl-furan-2,3-dione III/35e 2.2.1:1279 
34461 C11H8O3 
188.18 
H3C O 4-Methyl-5-phenyl-furan-2,3-dione III/35e 2.2.1:1280 
55991-71-4 
Ph O O 
34462 C11H8O3 
188.18 
O 
O 
CH3O 
2-Methoxymethylene-indan-1,3-dione III/35e 2.2.1:1281 
34463 C11H8O3 
188.18 
481-42-5 
O 
O 
OH 
CH3 
5-Hydroxy-2-methyl-[1,4]naphthoquinone; 
1,4-Naphthalenedione, 5-hydroxy-2-methyl-
III/35e 2.2.1:1282 
34464 C11H8O3 
188.18 
22460-76-0 
O 
O 
O 3-Acetyl-cyclohepta[b]furan-2-one III/35c2 2.2:1031 
CH3 
34465 C11H8O4 
204.18 
O 
H3C O 
O 
O 
5-(2-Methoxy-phenyl)-furan-2,3-dione III/35e 2.2.1:1283 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34466 C11H8O4 
204.18 
55991-69-0 
H3C 
O 
O 
O 
O 
5-(4-Methoxy-phenyl)-furan-2,3-dione III/35e 2.2.1:1284 
34467 C11H8O5S 
252.24 
O 
O 
O 
OH 
O 
S 
C2H5 
6-Hydroxy-4,7-dioxo-4,7-dihydro-
benzo[b]thiophene-5-carboxylic acid ethyl 
ester 
III/35c2 2.2:1032 
34468 C11H8S5 
300.51 S 
SS (R,S)-5-Phenyl-5,6-dihydro-
[1,3]dithiolo[4,5-b][1,4]dithiine-2-thione 
III/35c2 2.2:1033 
SPh S 
+ 
SS 
S 
SPh S 
34469 C11H9BrClN 
270.55 Br 
N 
CH3 
Cl 
6-Bromomethyl-2-chloro-3-methyl-quinoline III/35c2 2.2:1034 
34470 C11H9BrN2O3 
297.11 
Br 
O O 
4-Bromo-5-(4-methoxy-phenoxy)-2H-
pyridazin-3-one 
III/35c2 2.2:1035 
N 
NH CH3O 
34471 
237.09 
C11H9BrO 
Br 
CH3O 1-Bromo-4-methoxy-naphthalene III/35e 2.2.2:2952 
34472 C11H9BrO3 
269.09 Br 
H3C 
O O O 
6-Bromomethyl-7-methoxy-chromen-2-one III/35c2 2.2:1036 
34473 C11H9ClCrO3 
276.64 
CrCO 
Cl 
C11H9ClCrO3 III/35c4 2.2:1131 
C 
OC 
O 
34474 C11H9ClF4Si 
280.72 
FF (4-Chloro-2,3,5,6-tetrafluoro-
phenylethynyl)-trimethyl-silane 
III/35b 2.2:1063 
Cl 
F F 
Si 
34475 C11H9Cl2F3 
269.09 
Cl 
F3C Cl 
+ 
Cl 
F3C Cl (R,S)-1,6-Dichloro-1-trifluoromethyl-1,2,3,4-
tetrahydro-naphthalene 
III/35b 2.2:1064 
34476 C11H9Cl2F3 
269.09 
F3C Cl 
Cl 
+ 
F3C Cl 
Cl 
(R,S)-1,7-Dichloro-1-trifluoromethyl-1,2,3,4-
tetrahydro-naphthalene 
III/35b 2.2:1065 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34477 C11H9Cl2NO 
242.1 Cl 
Cl 
O 
N 
Ph 
4,5-Bis-chloromethyl-2-phenyl-oxazole III/35c2 2.2:1038 
34478 C11H9Cl2NO 
242.1 
1-(7,8-Dichloro-1H-isoquinolin-2-yl)-
ethanone 
III/35c2 2.2:1037 
CH3Cl 
N 
OCl 
34479 C11H9CrFO3 
260.18 
C11H9CrFO3 III/35c4 2.2:1132 
F 
CrCO 
C 
OC 
O 
34480 C11H9F 
160.19 
CH3 1-Fluoro-3-methyl-azulene III/35b 2.2:1066 
F 
34481 C11H9FO3 
208.19 
O 3-Fluoro-3-methyl-5-phenyl-furan-2,4-dione III/35b 2.2:1067 
F 
Ph 
O O 
34482 C11H9F3N2OS 
274.26 
N 
NH S 
N 
NH 
+ 
S (R,S)-3-Phenyl-2-thioxo-5-trifluoromethyl-
tetrahydro-pyrimidin-4-one 
III/35b 2.2:1068 
PhF3C F3C Ph 
O O 
34483 C11H9F3N2O2 
258.2 
N 
NH O 
N 
NH 
+ 
O (R,S)-3-Phenyl-5-trifluoromethyl-dihydro-
pyrimidine-2,4-dione 
III/35b 2.2:1069 
PhF3C F3C Ph 
O O 
34484 C11H9F3O 
214.18 
O (E)-1,1,1-Trifluoro-4-p-tolyl-but-3-en-2-one III/35b 2.2:1070 
CF3 
H3C 
34485 C11H9F3O 
214.18 
Ph 
CH3 
O 
CF3 
(E)-1,1,1-Trifluoro-4-phenyl-pent-3-en-2-
one 
III/35b 2.2:1071 
34486 C11H9F3O2 
230.18 
F3C 
O 
O 
CH3 
(E,Z)-3-(4-Trifluoromethyl-phenyl)-acrylic 
acid methyl ester 
III/35e 2.2.1:1285 
34487 C11H9F4N 
231.19 
F 
F 
F 
F 
C11H9F4N III/35b 3.2:1335 
NH3C NH3C+ 
F F 
F F 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34488 C11H9F4NO2 
263.19 
NH 
F 
O 
H3C 
O 
F3C 
(Z)-2-Fluoro-3-methoxy-N-(4-
trifluoromethyl-phenyl)-acrylamide 
III/35b 2.2:1072 
34489 C11H9F5O 
252.18 
CH2 
F F 
Ph 
HO CF3 
F F 
Ph 
HO CF3 
+ CH2 
(R,S)-1,1,1,3,3-Pentafluoro-2-phenyl-pent-
4-en-2-ol 
III/35b 2.2:1073 
34490 C11H9F6NO3 
317.18 
C2H5 
O 
O 
CF3 
H3C 
O 
CF3 
N 
6-Methoxy-2,4-bis-trifluoromethyl-nicotinic 
acid ethyl ester 
III/35c2 2.2:1039 
34491 C11H9F6NO5 
349.18 
N O 
O 
OH (5S,7aS)-1,6-Dioxo-3,3-bis-trifluoromethyl-
tetrahydro-pyrrolo[1,2-c]oxazole-5-
carboxylic acid ethyl ester 
III/35b 2.2:1074 
O 
CF3 
F3CH5C2 O 
34492 C11H9F11N2O 
394.18 
C5F11 3-(3-Undecafluoropentyl-1H-pyrazol-4-yl)-
propan-1-ol 
III/35c2 2.2:1040 
HO 
N 
NH 
34493 C11H9N 
155.2 
1008-89-5 
2-Phenyl-pyridine; 
Pyridine, 2-phenyl- 
III/35b 3.2:1336; 
IV/7a 2.20:1 
N Ph 
34494 C11H9N 
155.2 
N 
9H-Pyrrolo[1,2-a]indole III/35c2 2.2:1041 
34495 C11H9NO 
171.19 
1131-33-5 N(+) 
O(-) 
Ph 2-Phenyl-pyridine-1-oxide III/35e 2.2.3:3602 
34496 C11H9NO 
171.19 
1131-48-2 N(+) 
O(-)Ph 
3-Phenyl-pyridine-1-oxide III/35e 2.2.3:3603 
34497 C11H9NO 
171.19 
1131-61-9 
N(+) O(-)Ph 
4-Phenyl-pyridine 1-oxide; 
Pyridine, 4-phenyl-, 1-oxide 
III/35e 2.2.3:3604 
34498 C11H9NO 
171.19 
33421-36-2 
N 
HO 2-(2-Hydroxyphenyl)pyridine; 
2-Pyridin-2-yl-phenol 
III/35e 2.2.2:2953 
34499 C11H9NO 
171.19 
H2N O Naphthalene-1-carboxylic acid amide III/35e 2.2.1:1289 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34500 C11H9NO 
171.19 
O 
NH2 
Naphthalene-2-carboxylic acid amide III/35e 2.2.1:1290 
34501 C11H9NO 
171.19 CH2 
2-Vinyloxy-quinoline III/35e 2.2.2:2954 
19828-64-9 
N O 
34502 C11H9NO 
171.19 
8-Vinyloxy-quinoline III/35e 2.2.2:2957 
30913-32-7 
H2C 
NO 
34503 C11H9NO 
171.19 
O 6-Vinyloxy-quinoline III/35e 2.2.2:2956 
59195-18-5 CH2 
N 
34504 C11H9NO 
171.19 
O 3-Vinyloxy-quinoline III/35e 2.2.2:2955 
65750-19-8 CH2 
N 
34505 C11H9NO 
171.19 
O 1-Vinyl-1H-quinolin-4-one III/35e 2.2.1:1288 
71314-94-8 
N 
CH2 
34506 C11H9NO 
171.19 
109322-46-5 N O 
CH2 1-Vinyl-1H-quinolin-2-one III/35e 2.2.1:1287 
34507 C11H9NOS 
203.26 
CH3 
CN 
(E)-2-Phenyl-3-thiocyanato-but-2-enal III/35e 2.2.1:1291 
O S 
Ph 
34508 C11H9NO2 
187.19 
NC 
O 
O 
CH3 
3-(4-Cyano-phenyl)-acrylic acid methyl 
ester 
III/35e 2.2.1:1286 
34509 C11H9NO2 
187.19 
33399-53-0 
O 
Ph 
N(+) O(-) 
4-Phenoxy-pyridine-1-oxide III/35e 2.2.3:3605 
34510 C11H9NO2 
187.19 Ph 
CH3 
O 
N O 5-Methyl-3-phenyl-[1,2]oxazin-6-one III/35c2 2.2:1043 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34511 C11H9NO2 
187.19 
O 
O 
NH CH3 
2-Methylaminomethylene-indan-1,3-dione III/35e 2.2.1:1292 
34512 C11H9NO2 
187.19 
NO2 1-Methyl-4-nitro-naphthalene III/35e 2.2.3:3606 
880-93-3 
CH3 
34513 C11H9NO2 
187.19 
O 
O 
NH 
3,5-Dihydro-2H-furo[3,2-c]quinolin-4-one III/35c2 2.2:1042 
34514 C11H9NO3 
203.19 
OH 
O 
NPh 
O 
2-(3-Hydroxy-isoxazol-5-yl)-1-phenyl-
ethanone 
III/35c2 2.2:1045 
34515 C11H9NO3 
203.19 
CH3O 
O 
ON 
4-Methoxy-6-pyridin-3-yl-pyran-2-one III/35c2 2.2:1044 
34516 C11H9NO3 
203.19 
NO2 1-Methoxy-4-nitro-naphthalene; 
1-Methoxy-4-nitronaphthalin; 
III/35e 2.2.3:3607 
4900-63-4 Methyl 4-nitronaphthyl ether; 
OH3C 
Naphthalene, 1-methoxy-4-nitro- 
34517 C11H9NO3 
203.19 
O 4-Methoxy-benzo[c]azepine-1,3-dione III/35c2 2.2:1046 
NH 
O 
CH3O 
34518 C11H9NO3S 
235.26 
OO 
PhSO 
N 
1-Benzenesulfonyl-1H-pyrrole-2-
carbaldehyde 
III/35c2 2.2:1047 
34519 C11H9NO4 
219.19 
CH3 
O 
OH3C 
O 
O 
NH 
6-Methyl-4,7-dioxo-4,7-dihydro-1H-indole-
2-carboxylic acid methyl ester 
III/35c2 2.2:1048 
34520 C11H9NS 
187.26 CH3 
S 3-Methyl-benzo[d]pyrrolo[2,1-b]thiazole III/35c2 2.2:1049 
N 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34521 C11H9N3 
183.21 
NH 9H--Carbolin-3-ylamine III/35c2 2.2:1050 
N 
NH2 
34522 C11H9N3O 
199.21 C2H5 
O 
N 
3-Ethyl-4-oxo-3,4-dihydro-quinazoline-2-
carbonitrile 
III/35c2 2.2:1051 
CNN 
34523 C11H9N3O 
199.21 
NN 
N 
O 
H 
C11H9N3O III/35b 3.2:1337 
34524 C11H9N3OS 
231.27 
H3C 
N 
N 
N 
O 
S 
2-p-Tolyl-thiazolo[3,2-b][1,2,4]triazol-6-one III/35c2 2.2:1052 
34525 C11H9N3O2 
215.21 
NO2 (3-Nitro-pyridin-2-yl)-phenyl-amine III/35e 2.2.3:3608 
34949-41-2 
N NH 
Ph 
34526 C11H9N3O2 
215.21 N 
NO2 (3-Nitro-pyridin-4-yl)-phenyl-amine III/35e 2.2.3:3609 
35750-90-4 
NH 
Ph 
34527 C11H9N3O3 
231.21 
O2N 
O NH2 
5-(4-Amino-phenyl)-3-nitro-1H-pyridin-2-
one 
III/35c2 2.2:1053 
NH 
34528 C11H9N3S 
215.27 Ph 
N S 6-Methyl-2-phenyl-thiazolo[3,2-
b][1,2,4]triazole 
III/35c2 2.2:1054 
N 
N 
CH3 
34529 C11H9N3S2 
247.34 
Ph N S 2-Phenyl-6,7-dihydro-thiazolo[3,2-
a][1,3,5]triazine-4-thione 
III/35c2 2.2:1055 
N N 
S 
34530 
363.94 
C11H10BF4MnO5 
CH3 
H3C O C11H10BF4MnO5 III/35c4 2.2:1133 
B(-) 
F F 
O 
C 
OC 
Mn(+)CO F F 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34531 C11H10BrF3O 
295.1 
CF3 1-Bromo-4-((E)-2-ethoxy-1-trifluoromethyl-
vinyl)-benzene 
III/35b 2.2:1076 
O 
Br C2H5 
34532 C11H10BrF3O 
295.1 
Br 
O 
CF3Ph Ph+ 
Br 
O 
CF3 
(R,S)-3-Bromo-1,1,1-trifluoro-5-phenyl-
pentan-2-one 
III/35b 2.2:1075 
34533 C11H10BrNOS 
284.17 
O 
Ph 
2-(2-Oxo-2-phenyl-ethyl)-isothiazol-2-ium 
bromide 
III/35c2 2.2:1056 
N(+) 
Br(-)S 
34534 C11H10BrNO3 
284.11 
O CH3 
CH3 
Br 
O 
O 
N Br 
+ 
O CH3 
CH3O 
O 
N 
(R,S)-1-Acetyl-6-bromo-2-methoxy-1,2-
dihydro-indol-3-one 
III/35c2 2.2:1057 
34535 C11H10Br2N2O 
346.02 
Br 4,5-Dibromo-1-(4-methoxy-benzyl)-1Himidazole 
III/35c2 2.2:1058 
Br N 
N CH3 
O 
34536 C11H10ClF3 
234.65 
F3C Cl 
+ 
F3C Cl 
(R,S)-1-Chloro-1-trifluoromethyl-1,2,3,4-
tetrahydro-naphthalene 
III/35b 2.2:1077 
34537 C11H10ClF3O 
250.65 
Cl 1-Chloro-4-[1-(2,2,2-trifluoro-ethoxymethyl)-
vinyl]-benzene 
III/35b 2.2:1078 
OF3C 
CH2 
34538 C11H10ClF3O 
250.65 
OH 
CF3 
Cl 
Ph 
(E,Z)-4-Chloro-5,5,5-trifluoro-1-phenyl-
pent-1-en-3-ol 
III/35b 2.2:1079 
34539 C11H10ClMnO3 
280.59 
(delocalized system) 
Cl 
C(-) CH3 
C11H10ClMnO3 III/35c4 2.2:1134 
Mn(+) 
C 
O 
CC 
OO 
34540 C11H10ClMnO3 
280.59 
(delocalized system) 
CH(-) 
Mn(+)C O 
Cl CH3 
C11H10ClMnO3 III/35c4 2.2:1135 
C 
O C 
O 
34541 C11H10ClNO 
207.66 
1-(8-Chloro-1H-isoquinolin-2-yl)-ethanone III/35c2 2.2:1059 
CH3N 
OCl 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34542 C11H10ClNO2 
223.66 
OH 
Cl 
O 
N 
2-[3-(4-Chloro-phenyl)-isoxazol-4-yl]ethanol 
III/35c2 2.2:1060 
34543 C11H10ClNO2 
223.66 
O 2-Chloro-1-methoxymethyl-1H-indole-3-
carbaldehyde 
III/35c2 2.2:1061 
Cl 
N 
O 
CH3 
34544 C11H10ClNO4 
255.65 Ph 
O 
C2H5 
O 
Cl 
NO 
O 
Ph 
O 
C2H5 
O 
Cl 
NO 
O+ 
((R,S)-5-Chloro-5-ethoxy-[1,4,2]dioxazol-3-
yl)-phenyl-methanone 
III/35c2 2.2:1062 
34545 C11H10ClNS 
223.72 
N 4-Chloro-3-ethylsulfanyl-quinoline III/35c2 2.2:1063 
C2H5 
S 
Cl 
34546 C11H10Cl2N2O2 
273.12 
COOH 
Cl 
CH3 
N 
3-(5,6-Dichloro-2-methyl-benzoimidazol-1-
yl)-propionic acid 
III/35c2 2.2:1064 
Cl N 
34547 
326.63 
C11H10Cl3NO2S H3C 
O 
H3C 
O+ 
O O (R,S)-3-(4-Methoxy-phenyl)-2-
trichloromethyl-thiazolidin-4-one 
III/35c2 2.2:1065 
N N 
Cl3C S Cl3C S 
34548 
242.19 
C11H10CrO3 
CrCO 
C11H10CrO3 III/35c4 2.2:1136 
C 
OC 
O 
34549 
258.19 
C11H10CrO4 
Cr 
O 
CH3 
CO 
C11H10CrO4 III/35c4 2.2:1137 
O 
C 
C 
O 
34550 
274.19 
C11H10CrO5 
CrCO 
OO 
H3C 
CH3 C11H10CrO5 III/35c4 2.2:1138 
C 
OC 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34551 
274.19 
C11H10CrO5 
Cr 
O 
CH3 
CH3OCO 
C11H10CrO5 III/35c4 2.2:1139 
O 
C 
OC 
34552 
274.19 
C11H10CrO5 
Cr 
O 
CH3 
CO 
H3C O C11H10CrO5 III/35c4 2.2:1140 
C 
C 
O 
O 
34553 
274.19 
C11H10CrO5 
O 
Cr 
C 
O 
C O 
C 
O 
OH 
C11H10CrO5 III/35c4 2.2:1141 
34554 C11H10CrO6 
290.19 C 
O O 
C 
C11H10CrO6 III/35c4 2.2:1142 
CrCO 
C C C2H5O 
O O 
34555 C11H10DNS2 
222.35 S 
D S 5-Deutero-3-ethyl-4-phenyl-3H-thiazole-2-
thione 
III/35c2 2.2:1066 
Ph N 
C2H5 
34556 C11H10F 
161.2 
(delocalized system) 
C(+) F 
C11H10F III/35b 2.2:1080 
34557 C11H10FN 
175.2 
N 
F 
C2H5 
2-Ethyl-4-fluoro-quinoline III/35b 2.2:1081 
34558 C11H10FNOS 
223.27 
NH CH3 1-(7-Fluoro-3-methyl-4H-benzo[1,4]thiazin-
2-yl)-ethanone 
III/35b 2.2:1082 
O 
SF 
CH3 
34559 C11H10FNO5 
255.2 
F O 
O 
C2H5 
(R,S)-3-Fluoro-3-(4-nitro-phenyl)-2-oxo-
propionic acid ethyl ester 
III/35b 2.2:1083 
OO2N 
+ 
O C2H5 
F O 
OO2N 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34560 C11H10F2 
180.19 F 1,1-Difluoro-3,4,5,6-tetrahydro-1H-
cyclopropa[b]naphthalene 
III/35b 2.2:1085 
F 
34561 C11H10F2 
180.19 
F 
F 
(1S*,4R*)-6,7-Difluoro-1,2,3,4-tetrahydro-
1,4-methano-naphthalene 
III/35b 2.2:1084 
F 
+ 
F 
34562 C11H10F3NO 
229.2 
OF3C 
NH Ph 
(Z)-4-Benzylamino-1,1,1-trifluoro-but-3-en-
2-one 
III/35e 2.2.1:1293 
34563 C11H10F3NO 
229.2 
ON (4S,5R)-4-Methyl-5-phenyl-3-
trifluoromethyl-4,5-dihydro-isoxazole 
III/35c2 2.2:1067 
F3C Ph 
CH3 
34564 C11H10F6MnO4P 
406.1 CH3 
C11H10F6MnO4P III/35c4 2.2:1143 
O F 
P(-) 
F F 
Mn(+)CO F F 
C 
OC F 
O 
34565 C11H10F6MnO4P 
406.1 CH3 
C11H10F6MnO4P III/35c4 2.2:1144 
O F 
P(-) 
F F 
Mn(+) 
C 
OC 
O 
CO F F 
F 
34566 
406.1 
C11H10F6MnO4P 
O 
CH3 
F 
C11H10F6MnO4P III/35c4 2.2:1145 
P(-) 
F F 
Mn(+)CO F F 
C 
OC 
O 
F 
34567 
332.2 
C11H10F6N2O3 
OF3C 
CH3 
CH3 
N(+)N 
O(-)O 
CF3 
Dimethy-[1-(2,2,2-trifluoro-acety)-1H-
pyridin-4-ylidene]-ammonium; trifluoroacetate; 
Trifluoro-acetatedimethyl-[1-(2,2,2-trifluoro-
acetyl)-1H-pyridin-4-ylidene]-ammonium; 
llIII/35c2 2.2:1068 
34568 C11H10F6OS 
304.25 
SF3C 
CH3 1-Methyl-2-(2,2,2-trifluoro-1-methoxy-1-
trifluoromethyl-ethylsulfanyl)-benzene 
III/35b 2.2:1087 
O CF3H3C 
34569 C11H10F6O3 
304.19 
O 
F3C 
O 
O 
CF3 
CH3 O 
F3C 
O 
O 
CH3 
+ 
CF3 
(R,S)-3-Methyl-4-oxo-1-trifluoromethyl-
cyclohex-2-enecarboxylic acid 2,2,2-
trifluoro-ethyl ester 
III/35b 2.2:1088 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34570 C11H10Fe2O6S 
381.95 CH2C 
O 
O O 
C C 
C11H10Fe2O6S III/35c4 2.2:1146 
Fe Fe 
SC 
O 
C O 
C 
O 
H3C CH3 
34571 C11H10INO3 
331.11 
I 
NO2 
O 
6-Iodo-2,2-dimethyl-5-nitro-2H-chromene III/35c2 2.2:1069 
34572 
251.24 
C11H10NO2PS 
O 
N P 2-Phenyl-[1,3,4]thiazaphosphole-5-
carboxylic acid ethyl ester 
III/35a 3.2:976 
SPh C2H5 
O 
34573 
170.21 
C11H10N2 
N 
Ph 1-((E)-Styry)-1H-imidazolelIII/35c2 2.2:1070 
N 
34574 C11H10N2 
170.21 
Ph 2-Methyl-4-phenyl-pyrimidine; 
Pyrimidine, 2-methyl-4-phenyl- 
III/35b 3.2:1338 
21203-79-2 N 
N CH3 
34575 C11H10N2 
170.21 
1-Methyl-1H-pyrazolo[1,5-a]indole III/35c2 2.2:1071 
N 
N 
H3C 
34576 C11H10N2 
170.21 
4894-26-2 N 
NH 
4,9-Dihydro-3H--carboline; 
3,4-Dihydro-9H-pyrido[3,4-b]indole; 
3,4-Dihydro--carboline; 
3H-Pyrido[3,4-b]indole, 4,9-dihydro- 
III/35b 3.2:1339 
34577 C11H10N2O 
186.21 
O 
N 
NH 
Ph 1-(1H-Imidazol-2-yl)-2-phenyl-ethanone III/35c2 2.2:1072 
34578 C11H10N2O 
186.21 
O 6-Methyl-2-phenyl-3H-pyrimidin-4-one III/35c2 2.2:1073 
NH 
PhH3C N 
34579 C11H10N2OS 
218.28 
CH3 
O 
S 
NH 
NC NC 
+ 
CH3 
O 
S 
NH 
(R,S)-3-Methyl-3-methylsulfanyl-2-oxo-2,3-
dihydro-1H-indole-5-carbonitrile 
III/35c2 2.2:1074 
34580 C11H10N2O2 
202.21 
O 5-[2-Phenyl-eth-(Z)-ylidene]-imidazolidine-
2,4-dione 
III/35c2 2.2:1075 
NH 
NH 
Ph 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34581 C11H10N2O2 
202.21 
O Imidazol-1-yl-(4-methoxy-phenyl)-
methanone 
III/35e 2.2.1:1294 
N 
N 
O 
H3C 
34582 C11H10N2O2 
202.21 
H3C O 4-Methoxy-2-pyrimidin-4-yl-phenol III/35e 2.2.2:2962 
N 
N 
OH 
34583 C11H10N2O3 
218.21 O 
H3C O 
CH3 
NN 
Acetic acid 1-acetyl-1H-pyrrolo[2,3-
b]pyridin-6-yl ester 
III/35c2 2.2:1076 
O 
34584 C11H10N2O5S 
282.27 
C11 H10 N2 O5 S1 III/35b 3.2:1340 
34585 C11H10N4 
198.22 
CH3 
NH2 
N 
N 
N 
3-Methyl-3H-imidazo[4,5-f]quinolin-2-
ylamine 
III/35c2 2.2:1077 
34586 C11H10N4O 
214.22 
CH3N 
N 
2-Methyl-4H-benzo[4,5]imidazo[1,2-
b]pyrazole-3-carboxylic acid amide 
III/35c2 2.2:1078 
NH2 
NH 
O 
34587 C11H10N4O2 
230.22 CH3 
O 
ON 
N 
NN 
Ph 
(E)-3-(5-Phenyl-tetrazol-2-yl)-acrylic acid 
methyl ester 
III/35c2 2.2:1079 
34588 C11H10N4O2 
230.22 O 
H5C2 O 
H3C 
NC 
N 
N 
N 
8-Cyano-6-methyl-pyrrolo[1,2-
b][1,2,4]triazine-7-carboxylic acid ethyl 
ester 
III/35c2 2.2:1081 
34589 C11H10N4O2 
230.22 
COOH 
CH3 
NNH 
2-(Quinazolin-4-yl-hydrazono)-propionic 
acid 
III/35c2 2.2:1080 
N 
N 
34590 C11H10O 
158.2 
O 
H3C 
2-p-Tolyl-furan III/35e 2.2.2:2958 
34591 C11H10O 
158.2 
34721-89-6 
H3C O 
Ph 2-Methyl-5-phenyl-furan III/35c2 2.2:1082 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34592 C11H10O 
158.2 
CH2 
O 
1-Methylene-3,4-dihydro-1H-naphthalen-2-
one 
III/35e 2.2.1:1296 
34593 C11H10O 
158.2 
13203-73-1 
O 
CH2 
2-Methylene-3,4-dihydro-2H-naphthalen-1-
one; 
b-Methylene-a-tetralone 
III/35e 2.2.1:1295 
34594 C11H10O 
158.2 O 
C11H10O III/35e 2.2.2:2959 
34595 C11H10OS 
190.26 
Ph CH3 
O 
2-Methoxy-4-phenyl-thiophene III/35c2 2.2:1083 
S 
34596 C11H10O2 
174.2 
132120-61-7 
H3C O 
O 
2-(4-Methyl-benzylidene)-malonaldehyde III/35e 2.2.1:1297 
34597 C11H10O2 
174.2 CH3 
OPh O 2-Methoxy-5-phenyl-furan III/35c2 2.2:1085 
34598 C11H10O2 
174.2 
O 
O 
H3C 2-(4-Methoxy-phenyl)-furan III/35e 2.2.2:2960 
34599 C11H10O2 
174.2 
O 
Ph Ph 
+ 
O (R,S)-2-Methyl-4-phenyl-furan-3-one III/35c2 2.2:1086 
CH3 CH3 
O O 
34600 C11H10O2 
174.2 
Ph 
O 
O 
(S)-5-Methyl-5-phenyl-5H-furan-2-one III/35c2 2.2:1087 
34601 C11H10O2 
174.2 
HO 
O CH3 4-Methoxy-naphthalen-1-ol III/35e 2.2.2:2961 
34602 C11H10O2 
174.2 
99109-29-2 
C2H5 2H-1-Benzopyran-2-one, 4-ethyl-; 
4-Ethyl-2H-1-benzopyran-2-one; 
4-Ethyl-chromen-2-one; 
4-Ethyl-coumarine 
III/35c2 2.2:1084 
OO 
34603 C11H10O2 
174.2 
CH3 4,7-Dimethyl-chromen-2-one III/35e 2.2.1:1298 
14002-90-5 
OH3C O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34604 C11H10O2S 
206.26 CH3 
O 
S 
O Naphthalene-1-sulfinic acid methyl ester III/35e 2.2.5:4282 
34605 C11H10O2S 
206.26 
H3C 
CH3 7-Mercapto-4,6-dimethyl-chromen-2-one III/35c2 2.2:1088 
HS OO 
34606 C11H10O3 
190.19 
O 
O 
O 
H3C 
2-(4-Methoxy-benzylidene)-malonaldehyde III/35e 2.2.1:1299 
34607 C11H10O3 
190.19 
2959-96-8 
Ph 
OO O 
Ph 
OO O 
+ 
(R,S)-3-Phenyl-dihydro-pyran-2,6-dione; 
2-Phenylglutaric anhydride; 
2H-Pyran-2,6(3H)-dione, dihydro-3-phenyl- 
III/35e 2.2.1:1300 
34608 C11H10O3 
190.19 
CH3 7-Methoxy-4-methyl-chromen-2-one III/35e 2.2.1:1301 
2555-28-4 
OO O 
H3C 
34609 C11H10O3 
190.19 
OH 3-(2-Hydroxy-ethyl)-chromen-2-one III/35c2 2.2:1089 
20972-50-3 
OO 
34610 C11H10O4 
206.19 
OH 
O 
Ph 
H3C 
OO 
OH 
O 
Ph 
H3C 
OO 
+ 
(R,S)-5-Hydroperoxy-4-methyl-5-phenyl-
5H-furan-2-one 
III/35c2 2.2:1093 
34611 C11H10O4 
206.19 C2H5 
O O 
O 
2-Oxo-2,3-dihydro-benzofuran-4-carboxylic 
acid ethyl ester 
III/35c2 2.2:1091 
O 
34612 C11H10O4 
206.19 
81718-77-6 
CH3 
COOH 
H3C 
O 
5-Methoxy-3-methyl-benzofuran-2-
carboxylic acid 
III/35c2 2.2:1090 
O 
34613 C11H10O4 
206.19 
O 
CH3O 
O 
O 
O 
CH3O 
O 
O+ 
(R,S)-8-Methyl-8,9-dihydro-[1,3]dioxolo[4,5-
f]isochromen-6-one 
III/35c2 2.2:1092 
34614 C11H10O4S 
238.26 
O 
O 
S 
OPh 
O 
Benzoic acid (R,S)-1,1-dioxo-2,3-dihydro-
1H-1.6-thiophen-3-yl ester 
III/35e 2.2.5:4283 
+ 
O 
O 
S 
OPh 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34615 C11H10O5W 
406.03 O C11H10O5W III/35c4 2.2:1147 
O 
C 
WC 
C O CH3C 
O O 
34616 C11H10O6W 
422.03 
O 
O 
C W 
C 
O 
C 
CH3 
CH3 
C11H10O6W III/35c4 2.2:1148 
C C O 
O O 
CH3 
34617 
422.03 
C11H10O6W 
CO W 
C C 
OO CH2 C11H10O6W III/35c4 2.2:1149 
C 
O 
C 
O 
O CH3 
34618 
438.03 
C11H10O7W 
C C 
CH3OO O C11H10O7W III/35c4 2.2:1150 
O C W CH3 
C C O CH3 
O O 
34619 C11H11B 
154.02 B 
Ph C11H11B III/35a 2.2:976 
34620 C11H11BrO2 
255.11 
Br 
Ph O O 5-Bromo-6-phenyl-tetrahydro-pyran-2-one III/35e 2.2.1:1302 
34621 C11H11ClF2O 
232.65 
ClCH3 
F 
2-Chloro-1,1-difluoro-4-phenyl-pent-1-en-3-
ol 
III/35b 2.2:1090 
Ph 
OH F 
34622 C11H11ClN2O 
222.67 Cl 
O(-) 
N 
N(+) 
7-Chloro-1,2,3,4-tetrahydro-
benzo[4,5]imidazo[1,2-a]pyridine 5-oxide 
III/35c2 2.2:1094 
34623 C11H11ClN2O2 
238.67 
O C2H5 
ON 
N 
(6-Chloro-imidazo[1,2-a]pyridin-2-yl)-acetic 
acid ethyl ester 
III/35c2 2.2:1095 
Cl 
34624 C11H11ClO 
194.66 
Cl 
H2C 
CH3 
(R,S)-2-(4-Chloro-phenyl)-2-isopropenyl-
oxirane 
III/35e 2.2.2:2963 
34625 C11H11ClO 
194.66 
Cl 
H2C 
CH3 
O 
+ 
O 
O 
6-Chloro-3-ethyl-2H-chromene III/35c2 2.2:1096 
Cl C2H5 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34626 C11H11Cl2F2NO2S 
330.18 Cl Cl O 
CH3 
5,5-Dichloro-4,4-difluoro-5-(2-thioxo-2H-
pyridin-1-yl)-pentanoic acid methyl ester 
III/35b 2.2:1092 
F F 
N O 
S 
34627 C11H11Cl2N2O2P 
S 
337.16 
S 
N P 
Cl C11H11Cl2N2O2PS III/35a 3.2:977 
N ClO 
O C2H5 
34628 C11H11CrNO3 
257.21 
12109-10-3 Cr 
C 
N 
C C 
OO 
O 
CH3 
CH3 
Chromium, tricarbonyl[(1,2,3,4,5,6-.)-N,N-
dimethylbenzenamine]-; 
Chromium, tricarbonyl(N,N-
dimethylaniline)-; 
(N,N-Dimethylaniline)chromium tricarbonyl 
III/35e 2.2.7:4601 
34629 C11H11CrNO5 
289.2 
Cr(-) 
N(+)H3C 
CH3 O 
C 
C C 
C O 
C 
O 
H3C 
C11H11CrNO5 III/35c4 2.2:1151 
O 
O 
34630 
289.2 
C11H11CrNO5 
Cr(-) 
N(+)H3C 
O 
C 
C O 
C 
O 
H3C C11H11CrNO5 III/35c4 2.2:1152 
C 
CH3C 
O 
O 
34631 C11H11CrNO5 
289.2 
Cr(-) 
N(+)H3C 
CH3 O 
C 
C 
O 
C 
O 
C O 
C 
O 
H2C 
C11H11CrNO5 III/35c4 2.2:1153 
34632 
289.2 
C11H11CrNO5 
Cr(-) 
N(+)H3C 
O 
C 
C O 
C 
O 
H2C C11H11CrNO5 III/35c4 2.2:1154 
C 
CH3C 
O 
O 
34633 C11H11CrNO5 
289.2 
Cr(-) 
N(+)H3C 
O 
C 
C O 
C 
O 
C11H11CrNO5 III/35c4 2.2:1155 
C CH3C 
O 
O 
34634 C11H11CrNO5 
289.2 
See appendix No: 34634 C11H11CrNO5 III/35c4 2.2:1157 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34635 C11H11CrNO5 
289.2 
Cr 
C 
O 
CO 
O 
C N 
C11H11CrNO5 III/35c4 2.2:1156 
C C 
O O 
34636 C11H11CrNO5 
289.2 
Cr 
O 
C 
O 
C 
H3C 
O 
C 
C C 
O 
N 
O 
C11H11CrNO5 III/35c4 2.2:1158 
34637 C11H11F 
162.2 
F (1S*,4R*)-6-Fluoro-1,2,3,4-tetrahydro-1,4-
methano-naphthalene 
III/35b 2.2:1093 
+ 
F 
34638 C11H11FO 
178.2 
H2C 
CH3 
(R,S)-2-(4-Fluoro-phenyl)-2-isopropenyl-
oxirane 
III/35e 2.2.2:2964 
F 
O 
+ 
H2C 
CH3 
F 
O 
34639 C11H11FO2 
194.2 
CH2 4-(2-Fluoro-allyl)-benzoic acid methyl ester III/35b 2.2:1094 
O F 
H3C 
O 
34640 C11H11FO3 
210.2 F 
4-(3-Fluoro-2-oxo-propyl)-benzoic acid 
methyl ester 
III/35b 2.2:1097 
OO 
H3C 
O 
34641 C11H11FO3 
210.2 OFOH3C 
4-((R,S)-2-Fluoro-oxiranylmethyl)-benzoic 
acid methyl ester 
III/35b 2.2:1096 
O 
+ 
OFOH3C 
O 
34642 C11H11F3N2 
228.21 
N CF3 
C2H5 
NC 
4-[Ethyl-(2,2,2-trifluoro-ethyl)-amino]-
benzonitrile 
III/35b 2.2:1101 
34643 C11H11F3O 
216.2 
Ph 
CH2 
O CF3 
[1-(2,2,2-Trifluoro-ethoxymethyl)-vinyl]benzene 
III/35b 2.2:1103 
34644 C11H11F3O 
216.2 
Ph 
F3C 
O 
C2H5 ((E)-2-Ethoxy-1-trifluoromethyl-vinyl)-
benzene 
III/35b 2.2:1104 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34645 C11H11F3O 
216.2 
H3C 
CH2 
OH 
CF3 
H3C 
CH2 
OH 
CF3+ 
(R,S)-1,1,1-Trifluoro-3-p-tolyl-but-3-en-2-ol III/35b 2.2:1102 
34646 C11H11F3O2 
232.2 
CH2 
CF3 
(R,S)-1,1,1-Trifluoro-3-(4-methoxy-phenyl)-
but-3-en-2-ol 
III/35b 2.2:1105 
OH3C OH 
+ 
CH2 
CF3 
OH3C OH 
34647 C11H11F3O2 
232.2 
(
Ph 
O 
O 
C2H5 
CF3 
Ph 
O 
O 
C2H5 
CF3 
+ 
(R,S)-3,3,3-Trifluoro-2-phenyl-propionic 
acid ethyl ester 
III/35b 2.2:1106 
34648 C11H11F6MoO3P 
432.11 
(-) 
Mo(2+)CH2 
CH3 
C 
O 
C 
O 
C O P(-) 
F 
F F 
F 
F 
F 
unknown relative positions)C11H11F6MoO3P III/35c4 2.2:1159 
34649 C11H11F6NO 
287.2 ONH 
CH3 o-Tolyl-(2,2,2-trifluoro-1-methoxy-1-
trifluoromethyl-ethyl)-amine 
III/35b 2.2:1107 
CH3 
F3C CF3 
34650 C11H11F6O3PW 
520.01 
(
W(2+)CH2 
C 
O 
C 
O 
C O P(-) 
F F 
F 
unknown relative positions)C11H11F6O3PW III/35c4 2.2:1160 
F F 
(-) 
CH3 F 
34651 C11H11F15OSi 
472.27 
F15C7 O 
Si 
Trimethyl-(2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-
pentadecafluoro-octyloxy)-silane 
III/35e 2.2.2:2965 
34652 C11H11FeO3 
247.05 
(
(-) 
Fe(2+)C O 
unknown relative positions)C11H11FeO3 III/35e 2.2.7:4632 
C 
O C 
O 
34653 C11H11IN4O 
342.14 
I 
N3 
O 
NH 
3a-Azido-6-iodo-8a-methyl-3,3a,8,8a-
tetrahydro-2H-furo[2,3-b]indole 
III/35c2 2.2:1097 
34654 C11H11MoO3 
287.14 
(
OO 
unknown relative positions)C11H11MoO3 III/35e 2.2.7:4736 
C C 
Mo 
C 
O 
(-) 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34655 C11H11N 
157.21 
13217-97-5 
CH3 
Ph 
N 
1-Methyl-3-phenyl-1H-pyrrole; 
1-Methyl-3-phenyl-pyrrole 
III/35c2 2.2:1098 
34656 C11H11NO 
173.21 
CH3 2,4-Dimethyl-2H-isoquinolin-1-one III/35b 3.2:1341; 
III/35e 2.2.1:1304 
N 
CH3 
O 
34657 C11H11NO 
173.21 
CH3 
O 
N 
4-Methoxymethyl-quinoline III/35c2 2.2:1099 
34658 C11H11NO 
173.21 
HO 
CH3 1,4-Dimethyl-isoquinolin-6-ol III/35c2 2.2:1100 
N 
CH3 
34659 C11H11NO 
173.21 
2-Ethyl-8-quinolinol; 
2-Ethyl-quinolin-8-ol 
III/35c2 2.2:1102 
71104-53-5 
C2H5N 
OH 
34660 C11H11NO 
173.21 
CH3 4,8-Dimethyl-1H-quinolin-2-one III/35e 2.2.1:1303 
5349-78-0 
NH O 
CH3 
34661 C11H11NO 
173.21 
OH 
CH3N 
OH 
CH3N+ 
(R,S)-1-Quinolin-2-yl-ethanol III/35c2 2.2:1101 
34662 C11H11NOS2 
237.34 SN 
2-Phenyl-1-(2-thioxo-thiazolidin-3-yl)-
ethanone 
III/35e 2.2.1:1305 
Ph 
O S 
34663 C11H11NO2 
189.21 
Ph 
O 
C2H5 
O 
N 
Ph 
O 
C2H5 
O 
N+ 
(R,S)-3-Phenyl-3H-azirine-2-carboxylic acid 
ethyl ester 
III/35b 3.2:1342 
34664 C11H11NO2 
189.21 O 
Ph 
NH 
O 
3-[1-Phenylamino-meth-(E)-ylidene]-
dihydro-furan-2-one 
III/35e 2.2.1:1306 
34665 C11H11NO2 
189.21 C2H5 
O 
ON 
Ph 
5-Ethoxy-3-phenyl-isoxazole III/35c2 2.2:1103 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34666 C11H11NO2 
189.21 
304-17-6 
N 
O 
CH3 
1H-Isoindole-1,3(2H)-dione, 2-(1-
methylethyl)-; 
2-Isopropyl-isoindole-1,3-dione; 
Isopropyl phthalimide; 
III/35e 2.2.1:1307 
CH3 N-isopropylphthalimide 
O 
34667 C11H11NO2 
189.21 
O 2-Hydroxymethyl-1-methyl-1H-quinolin-4-
one 
III/35c2 2.2:1104 
OH 
N 
CH3 
34668 C11H11NO2S 
221.28 
OO 
N 
S 
Ph 
1-Benzenesulfonyl-1,4-dihydro-pyridine III/35c2 2.2:1105 
34669 C11H11NO2S 
221.28 
113925-46-5 
Ph 
OH 
O 
S 
N 
Ph 
OH 
O 
S 
N 
+ 
(R,S)-2-Hydroxy-4-methyl-2-phenyl-4H-
[1,4]thiazin-3-one; 
2H-1,4-Thiazin-3(4H)-one, 2-hydroxy-4-
methyl-2-phenyl- 
III/35c2 2.2:872 
CH3 CH3 
34670 C11H11NO2S2 
253.34 
24044-88-0 
O 
C2H5O 
S 
S 
N 
Benzothiazol-2-ylmercapto-acetic acid ethyl 
ester; 
(Benzothiazol-2-ylsulfanyl)-acetic acid ethyl 
ester 
III/35c2 2.2:1106 
34671 C11H11NO3 
205.21 Ph 
O (R,S)-2-Benzyl-morpholine-3,5-dione III/35c2 2.2:1110 
O ONH 
+ 
Ph 
O 
O ONH 
34672 C11H11NO3 
205.21 
O 
C2H5 
O 
O 
2-Oxo-2,3-dihydro-1H-indole-4-carboxylic 
acid ethyl ester 
III/35c2 2.2:1107 
NH 
34673 C11H11NO3 
205.21 
O 
H5C2 
O 
O 
2-Oxo-2,3-dihydro-1H-indole-5-carboxylic 
acid ethyl ester 
III/35c2 2.2:1109 
NH 
34674 C11H11NO3 
205.21 CH3 
O 
CH3 
O (R,S)-1-Acetyl-2-methoxy-1,2-dihydro-
indol-3-one 
III/35c2 2.2:1115 
O 
N 
O 
N 
+ 
O CH3 O CH3 
34675 C11H11NO3 
205.21 H3C 
O 6,7-Dimethoxy-2H-isoquinolin-1-one III/35c2 2.2:1113 
H3C 
O 
NH 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34676 C11H11NO3 
205.21 
O2N 
O 
2,2-Dimethyl-6-nitro-2H-chromene III/35c2 2.2:1114 
34677 C11H11NO3 
205.21 
O 
COOH 
N 
(R,S)-2-Formyl-1,2,3,4-tetrahydro-
isoquinoline-3-carboxylic acid 
III/35c2 2.2:1108 
COOH 
+ 
ON 
34678 C11H11NO3 
205.21 C3H7 
O 
OO 
N 
3-Propyl-benzo[e][1,3]oxazine-2,4-dione III/35c2 2.2:1111 
34679 C11H11NO3 
205.21 
O CH3 
CH3 
O 
O 
N 
8-Acetyl-1-methyl-1,5-dihydro-pyrano[4,3-
b]pyridin-7-one 
III/35c2 2.2:1112 
34680 C11H11NO4 
221.21 
Ph O COOH 
CH3O 
N 
(2S,3S)-1-Methyl-4-oxo-3-phenoxy-
azetidine-2-carboxylic acid 
III/35c2 2.2:1116 
34681 C11H11N2O2Re 
389.42 
C11H11N2O2Re III/35c4 2.2:1161 
NH3C 
ReO 
NO 
34682 C11H11N3 
185.22 
PhH2N 
CH3 
N 
N 
5-Methyl-4-phenyl-pyrimidin-2-ylamine III/35c2 2.2:1118 
34683 C11H11N3 
185.22 
CH3 
N 
NH 
N + 
CH3 
N 
NH 
N 
(R,S)-5-Methyl-5,6-dihydro-imidazo[1,2-
c]quinazoline 
III/35c2 2.2:1117 
34684 C11H11N3O 
201.22 
Ph 
ON 
NH 
NH 
3-Phenyl-3a,4,6,6a-tetrahydro-1H-
pyrrolo[3,2-c]pyrazol-5-one 
III/35c2 2.2:1119 
34685 C11H11N3OS 
233.29 
O 
H3C 
Ph 
NH 
NH 
N 
S 
Benzoic acid N'-(4-methyl-thiazol-2-yl)hydrazide 
III/35c2 2.2:1121 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34686 C11H11N3OS 
233.29 H3C O NN 
(R,S)-9-Methoxy-6,10b-dihydro-1H-
pyrazolo[1,5-c]quinazoline-5-thione 
III/35c2 2.2:1120 
SNH 
+ 
H3C O 
S 
N 
NH 
N 
34687 C11H11N3OS2 
265.36 
S 
N S O 
PhNHNH 
1-Benzoyl-3-(4,5-dihydro-thiazol-2-yl)-
thiourea 
III/35c2 2.2:1122 
34688 C11H11N3O2 
217.22 
COOHN 
N 
Ph 
3-(4-Phenyl-[1,2,3]triazol-2-yl)-propionic 
acid 
III/35c2 2.2:1124 
N 
34689 C11H11N3O2 
217.22 
NH 
NO2 Methyl-(7-methyl-5-nitro-quinolin-6-yl)-
amine 
III/35c2 2.2:1123 
CH3 
CH3N 
34690 C11H11N3O2S 
249.29 
COOHS 
H3C 
N N 
NH 
(5-p-Tolyl-4H-[1,2,4]triazol-3-ylsulfanyl)-
acetic acid 
III/35c2 2.2:1125 
34691 C11H11N3O3 
233.22 CH3 
COOH 
NH CH3 
COOH 
NH 
(R,S)-2-(4-Oxo-3,4-dihydro-phthalazin-1-
ylamino)-propionic acid 
III/35c2 2.2:1126 
NH 
N 
NH 
N+ 
O O 
34692 C11H11N3O5S 
297.29 C2H5 
O 
O 
O2N 
NH 
S N 
C2H5 
O 
O 
O2N 
NH 
S N+ 
(R,S)-3-Ethoxy-6-nitro-1-oxo-1-phenyl-4H-
1.6-[1,2,4]thiadiazin-5-one 
III/35c2 2.2:1127 
O O 
Ph Ph 
34693 C11H11N3S 
217.29 
H3C 
S NH2 
NN 
6-(4-Methylsulfanyl-phenyl)-pyridazin-3-
ylamine 
III/35c2 2.2:1129 
34694 C11H11N3S 
217.29 CH3H3C 
NH N 
N 
6-Methyl-3-p-tolyl-2H-[1,2,4]triazine-5-
thione 
III/35c2 2.2:1128 
S 
34695 C11H11N5 
213.24 CH3 
NH 
CN 
N 
1-Benzyl-5-methylamino-1H-[1,2,3]triazole-
4-carbonitrile 
III/35c2 2.2:1130 
NN 
Ph 
34696 C11H11O 
159.2 
CH3 1,3-Dimethyl-isochromenylium III/35e 2.2.1:1308 
O(+) 
CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34697 C11H11O2P 
206.18 O 
O 
CH3 
PH 
Naphthalen-1-yl-phosphinic acid methyl 
ester 
III/35e 2.2.4:3797 
34698 C11H11O2P 
206.18 PH 
O 
O 
CH3 
Naphthalen-2-yl-phosphinic acid methyl 
ester 
III/35e 2.2.4:3798 
34699 C11H12BN 
169.03 
BH2 NPh 
C11H12BN III/35a 2.2:977 
34700 C11H12BrNO 
254.12 
Br (Z)-4-(4-Bromo-phenylamino)-pent-3-en-2-
one 
III/35e 2.2.1:1309 
O NH 
H3C CH3 
34701 C11H12BrNO4 
302.12 
O O 
Br 
C2H5O 
H5C2 
O 
N 
2-Bromo-pyridine-3,5-dicarboxylic acid 
diethyl ester 
III/35c2 2.2:1131 
34702 C11H12ClFO 
214.66 C2H5 
Cl 
FOH 
Ph C2H5 
Cl 
FOH 
Ph+ 
(E)-(R,S)-2-Chloro-3-fluoro-1-phenyl-pent-
2-en-1-ol 
III/35b 2.2:1108 
34703 C11H12ClF3O 
252.66 
OH 
CF3 
2-Chloro-1,1,1-trifluoro-5-phenyl-pentan-3-
ol 
III/35b 2.2:1109 
Ph 
Cl 
34704 C11H12ClNO 
209.67 
(Z)-4-(3-Chloro-phenylamino)-pent-3-en-2-
one 
III/35e 2.2.1:1310 
O NH Cl 
H3C CH3 
34705 C11H12ClNO 
209.67 
Cl (Z)-4-(4-Chloro-phenylamino)-pent-3-en-2-
one 
III/35e 2.2.1:1311 
O NH 
H3C CH3 
34706 C11H12ClNO 
209.67 
O 
Cl 
O 
Cl 
+ 
(R,S)-3-Chloro-1-ethyl-3-methyl-1,3-
dihydro-indol-2-one 
III/35c2 2.2:1132 
N N 
C2H5 C2H5 
34707 C11H12ClN3S 
253.75 
See appendix No: 34707 1-[(R,S)-1-(2-Chloro-phenyl)-ethyl]-3methylsulfanyl-
1H-[1,2,4]triazole 
III/35c2 2.2:1133 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34708 C11H12Cl4FeN3P3 
476.81 (-)P 
N 
P 
Cl 
Cl Fe(2+) (-) 
C11H12Cl4FeN3P3 III/35a 3.2:978 
NN 
P 
Cl Cl 
34709 C11H12Cl4N3P3Ru 
522.04 (-)P 
N 
P 
Cl 
Cl Ru(2+) (-) 
C11H12Cl4N3P3Ru III/35a 3.2:979 
NN 
P 
Cl Cl 
34710 C11H12FNO 
193.22 
F 
CH3 
N-[2-((Z)-1-Fluoro-propenyl)-phenyl]-
acetamide 
III/35b 2.2:1111 
NH 
OH3C 
34711 C11H12FNO 
193.22 
(Z)-4-(3-Fluoro-phenylamino)-pent-3-en-2-
one 
III/35e 2.2.1:1312 
O NH F 
H3C CH3 
34712 C11H12FNO 
193.22 
F (Z)-4-(4-Fluoro-phenylamino)-pent-3-en-2-
one 
III/35e 2.2.1:1313 
O NH 
H3C CH3 
34713 C11H12FNO 
193.22 
F 
ON 
1-(2-Fluoro-phenyl)-piperidin-4-one III/35c2 2.2:1134 
34714 C11H12FNO2 
209.22 O 
H3C (Z)-2-Fluoro-3-methoxy-N-o-tolyl-
acrylamide 
III/35b 2.2:1112 
F 
NH O 
CH3 
34715 C11H12FNO2 
209.22 O 
H3C (Z)-2-Fluoro-3-methoxy-N-m-tolyl-
acrylamide 
III/35b 2.2:1113 
F 
NH OH3C 
34716 C11H12FNO3 
225.22 O 
H3C (Z)-2-Fluoro-3-methoxy-N-(4-methoxy-
phenyl)-acrylamide 
III/35b 2.2:1114 
FO 
H3C 
NH O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34717 C11H12FNO3 
225.22 
NH 
F 
O 
H3C 
OO 
H3C 
(Z)-2-Fluoro-3-methoxy-N-(3-methoxy-
phenyl)-acrylamide 
III/35b 2.2:1115 
34718 C11H12F2 
182.21 
CH3 
F 
(4,4-Difluoro-3-methyl-but-3-enyl)-benzene III/35b 2.2:1117 
Ph 
F 
34719 C11H12F2 
182.21 
F 
F 
F 
F 
+ 
(R,S)-1-(2,2-Difluoro-ethyl)-indan III/35b 2.2:1116 
34720 C11H12F2O 
198.21 
Ph 
FA 
FB 
OH 
(E)-4,5-Difluoro-5-phenyl-pent-4-en-1-ol III/35b 2.2:1120 
34721 C11H12F2O 
198.21 
CH2 
F F 
Ph 
OH 
CH2 
F F 
Ph 
OH 
+ 
(R,S)-3,3-Difluoro-2-phenyl-pent-4-en-2-ol III/35b 2.2:1119 
34722 C11H12F2O 
198.21 
F F 
OH 
Ph (2,2-Difluoro-3-methyl-3-phenyl-
cyclopropyl)-methanol 
III/35b 2.2:1118 
34723 C11H12F2O2 
214.21 
F F 
O 
2,2-Difluoro-4-phenyl-butyric acid methyl 
ester 
III/35b 2.2:1121 
CH3Ph 
O 
34724 C11H12F2O2 
214.21 
103225-30-5 
Ph 
O 
O 
C2H5 
F 
F 
Ph 
O 
O 
C2H5 
F 
F 
+ 
Benzenepropanoic acid, a,-difluoro-, ethyl 
ester, (aR,S)-rel-; 
(2R*,3S*)-2,3-Difluoro-3-phenyl-propionic 
acid ethyl ester 
III/35b 2.2:1123 
34725 C11H12F2O2 
214.21 
103225-31-6 
Ph 
O 
O 
C2H5 
F 
F 
Ph 
O 
O 
C2H5 
F 
F 
+ 
(2S*,3S*)-2,3-Difluoro-3-phenyl-propionic 
acid ethyl ester 
III/35b 2.2:1122 
34726 C11H12F3NO3S 
295.28 N 
CH3 (4R,5S)-4-Benzenesulfonyl-2-methyl-5-
trifluoromethyl-isoxazolidine 
III/35b 2.2:1126 
OPh 
S 
CF3 
OO 
34727 C11H12F3NO4 
279.21 
103900-80-7 
O 
H5C2 
O 
CH3 
CH3 
O 
OF3C N 
4,6-Dimethoxy-2-trifluoromethyl-nicotinic 
acid ethyl ester 
III/35c2 2.2:1135 
34728 C11H12F6O2 
290.2 
See appendix No: 34728 (R,S)-4-Methyl-1-trifluoromethyl-cyclohex-
3-enecarboxylic acid 2,2,2-trifluoro-ethyl 
ester 
III/35b 2.2:1127 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34729 C11H12FeO5 
280.06 
Fe 
CH2 
O C2H5 
C 
O 
C 
O 
C 
O 
C 
O 
C11H12FeO5 III/35c4 2.2:1162 
34730 C11H12HgO6 
440.8 CH3 
OH 
O 
CH3 
O 
O 
H3C 
Hg 
O 
O 
C11H12HgO6 III/35c4 2.4:3371 
34731 C11H12LiN 
165.16 
N 
Li 
CH2 
C11H12LiN III/35b 3.2:1343 
34732 C11H12N2 
172.23 
20542-79-4 
Ph 
CH3 
N 
N 
5-MethylIII/35c2 2.2:1136 
34733 C11H12N2 
172.23 
16502-01-5 
NH 
NH 
H--carboline; 
-carboline 
III/35b 3.2:1344 
34734 C11H12N2O 
188.23 
CH3 
CH3 
N 
ON 
Ph III/35c2 2.2:1139 
34735 C11H12N2O 
188.23 Ph CH3 
O 
N 
N 
Ph CH3 
O 
N 
N 
+ 
H-III/35c2 2.2:1137 
34736 C11H12N2O 
188.23 
H3C 
O 
NH2 
CH3 
N 
lIII/35c2 2.2:1138 
34737 C11H12N2O 
188.23 
CH3 
H3C 
OH 
N 
N 
6-Dimethylamino-quinolin-2-ol III/35c2 2.2:1140 
34738 C11H12N2OS 
220.29 
Ph 
NH 
N 
OH3C 
S 
Ph 
NH 
N 
OH3C 
S 
+ 
l-3-methylimidazolidin-4-one 
III/35e 2.2.1:1314 
34739 C11H12N2OS 
220.29 
NH 
N 
C2H5 
OPh 
S NH 
N 
C2H5 
OPh 
S 
+ 
(R,S)-5-Ethylimidazolidin-4-one 
III/35e 2.2.1:1315 
-6-phenyl-2,3-dihydro-pyrazine 
1H-Pyrido[3,4-b]indole, 2,3,4,9-tetrahydro-; 
2,3,4,9-Tetrahydro-11,2,3,4-Tetrahydro-9H-pyrido[3,4-b]indole; 
1,2,3,4-Tetrahydro-
5-Isopropyl-3-phenyl-[1,2,4]oxadiazole 
(R,S)-2-Methyl-4-phenyl-4,5-dihydro-2pyridazin-3-one 
7-Methoxy-3-methy-isoquinolin-1-ylamine 
(R,S)-5-Benzy-2-thioxo-
-3-phenyl-2-thioxo-
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34740 C11H12N2O2 
204.22 
NH 
N 
CH3 
OO 
Ph 
NH 
N 
CH3 
OO 
Ph 
+ 
(R,S)-3,5-Dimethyl-5-phenyl-imidazolidine-
2,4-dione 
III/35b 3.2:1345 
34741 C11H12N2O2 
204.22 
O 
CN 
C2H5 
O 
C(-)H3C N(+) 
C11H12N2O2 III/35c2 2.2:1144 
34742 C11H12N2O2 
204.22 
CN 
O 
C2H5 
O 
N 
CN 
O 
C2H5 
O 
N 
+ 
(R,S)-Cyano-methyl-pyridin-4-yl-acetic acid 
ethyl ester 
III/35c2 2.2:1141 
34743 C11H12N2O2 
204.22 
O 1-Benzyl-4-oxy-5,6-dihydro-1H-pyrazin-2-
one 
III/35c2 2.2:1145 
Ph N 
N(+) 
O(-) 
34744 C11H12N2O2 
204.22 
54-12-6 NH 
NH2 
COOH 
(R,S)-2-Amino-3-(1H-indol-3-yl)-propionic 
acid; 
Tryptophane 
III/35e 2.2.1:1316 
NH 
NH2 
COOH 
+ 
34745 C11H12N2O2 
204.22 
CH3 7-Methyl-1-(2-oxo-propyl)-1H-pyrrolo[1,2-
a]pyrimidin-2-one 
III/35c2 2.2:1143 
O 
O N 
CH3N 
34746 C11H12N2O2 
204.22 
O C2H5 
ON 
N 
Imidazo[1,2-a]pyridin-2-yl-acetic acid ethyl 
ester 
III/35c2 2.2:1146 
34747 C11H12N2O2 
204.22 
O 2-(1-Hydroxy-1-methyl-ethyl)-3H-
quinazolin-4-one 
III/35c2 2.2:1142 
NH 
N 
OH 
34748 C11H12N2O2S 
236.29 
H3C Ph 
S 
N 4-Methyl-2-phenylmethanesulfonyl-1H-
imidazole 
III/35c2 2.2:1147 
O 
ONH 
34749 C11H12N2O3 
220.22 H3C 
O 
NH 
CH3 NO2 
(Z)-4-(3-Nitro-phenylamino)-pent-3-en-2-
one 
III/35e 2.2.1:1317; 
III/35e 2.2.3:3610 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34750 C11H12N2O3 
220.22 
NO2 (Z)-4-(4-Nitro-phenylamino)-pent-3-en-2-
one 
III/35e 2.2.1:1318; 
III/35e 2.2.3:3611 
O NH 
H3C CH3 
34751 C11H12N2O3 
220.22 O 
CH3O 
NH 
O 
CH3O 
NH 
((R,S)-1-Methyl-2-oxo-2,3-dihydro-1H-
indol-3-yl)-carbamic acid methyl ester 
III/35c2 2.2:1149 
+ 
ON ON 
CH3 CH3 
34752 C11H12N2O3 
220.22 H2N 
O (3S,4R)-3-Amino-4-benzo[1,3]dioxol-5-yl-1-
methyl-azetidin-2-one 
III/35c2 2.2:1148 
O 
O N 
CH3 
34753 C11H12N2O3 
220.22 
H2N 
NO2 
O 
2,2-Dimethyl-5-nitro-2H-chromen-6-ylamine III/35c2 2.2:1150 
34754 C11H12N2O3S 
252.29 C2H5 
OO 
Ph 
O 
N 
NH 
S C2H5 
OO 
Ph 
O 
N 
NH 
S 
+ 
(R,S)-3-Ethoxy-1-oxo-1-phenyl-4H-1.6-
[1,2,4]thiadiazin-5-one 
III/35c2 2.2:1151 
34755 C11H12N4O 
216.24 
N 
NH 
Ph 
Ethyl-(4-nitroso-5-phenyl-2H-pyrazol-3-yl)-
amine 
III/35c2 2.2:1152 
C2H5NH 
N 
O 
34756 C11H12N4O4 
264.24 H3C 
O 
NO2N 
1,3-Dimethyl-7-methylamino-6-nitro-1H-
quinazoline-2,4-dione 
III/35c2 2.2:1153 
O 
CH3NHN 
CH3 
34757 C11H12O 
160.21 Ph 
O 
CH3 
(E)-2-[((E)-Propenyl)oxy]-vinyl-benzene III/35e 2.2.2:2966 
34758 C11H12O 
160.21 
Ph 
O 
CH3 (E)-2-[((Z)-Propenyl)oxy]-vinyl-benzene III/35e 2.2.2:2967 
34759 C11H12O 
160.21 
Ph 
O 
CH3 
(Z)-2-[((E)-Propenyl)oxy]-vinyl-benzene III/35e 2.2.2:2968 
34760 C11H12O 
160.21 
Ph 
O 
CH3 (Z)-2-[((Z)-Propenyl)oxy]-vinyl-benzene III/35e 2.2.2:2969 
34761 C11H12O 
160.21 
Ph 
O 
CH3 
H2C 
Ph 
O 
CH3 
H2C 
+ 
(R,S)-2-Isopropenyl-2-phenyl-oxirane III/35e 2.2.2:2970 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34762 C11H12O 
160.21 
Ph 
CH3H2C 
O 
+ 
Ph 
H2C 
O 
CH3 
(2S*,3R*)-3-Methyl-2-phenyl-2-vinyl-
oxirane 
III/35e 2.2.2:2971 
34763 C11H12O 
160.21 
Ph 
CH3H2C 
O 
+ 
Ph 
H2C 
O 
CH3 
(2S*,3S*)-3-Methyl-2-phenyl-2-vinyl-oxirane III/35e 2.2.2:2972 
34764 C11H12O 
160.21 OCH3 4,7-Dimethyl-indan-1-one III/35e 2.2.1:1323 
CH3 
34765 C11H12O 
160.21 
O 
H3C 
5,6-Dimethyl-indan-1-one III/35e 2.2.1:1324 
H3C 
34766 C11H12O 
160.21 OCH3 
H3C 
5,7-Dimethyl-indan-1-one III/35e 2.2.1:1325 
34767 C11H12O 
160.21 
10489-28-8 
O 2,2-Dimethyl-indan-1-one III/35e 2.2.1:1320 
34768 C11H12O 
160.21 
26465-81-6 
O 3,3-Dimethyl-indan-1-one III/35e 2.2.1:1321 
34769 C11H12O 
160.21 
O O (R,S)-3,4-Dimethyl-indan-1-one III/35e 2.2.1:1322 
+ 
CH3CH3 CH3 
CH3 
34770 C11H12O 
160.21 
O 
H3C 
7-Methyl-3,4-dihydro-2H-naphthalen-1-one; 
7-Methyl-3,4-dihydro-2H-naphthalen-1-one 
III/35e 2.2.1:1329 
34771 C11H12O 
160.21 
1590-08-5 
O 
CH3 + 
O 
CH3 
(R,S)-2-Methyl-3,4-dihydro-2H-naphthalen-
1-one; 
1(2H)-Naphthalenone, 3,4-dihydro-2-
methyl-; 
1,2,3,4-tetrahydro-2-methylnaphthalen-1-
III/35e 2.2.1:1326 
one 
34772 C11H12O 
160.21 
14944-23-1 
O 
CH3 
+ 
O 
CH3 
3-methyl-3,4-dihydro-1(2H)-naphthalenone; 
(R,S)-3-Methyl-3,4-dihydro-2H-naphthalen-
1-one; 
3-methyl-3,4-dihydro-2H-naphthalen-1-one 
III/35e 2.2.1:1327 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34773 C11H12O 
160.21 
O O (R,S)-4-Methyl-3,4-dihydro-2H-naphthalen-
1-one 
III/35e 2.2.1:1328 
+ 
CH3 CH3 
34774 C11H12O 
160.21 
CH3 
O 
CH3 
4,6-Dimethyl-2H-chromene III/35c2 2.2:1154 
34775 C11H12O2 
176.21 
H3C O 
O 
CH3 
(E,Z)-3-p-Tolyl-acrylic acid methyl ester III/35e 2.2.1:1331 
34776 C11H12O2 
176.21 
O O 
Ph 
(R,S)-5-Benzyl-dihydro-furan-2-one III/35e 2.2.1:1332 
+ 
Ph 
O O 
34777 C11H12O2 
176.21 
O PhO O 
+ 
PhO 
(R,S)-6-Phenyl-tetrahydro-pyran-2-one III/35e 2.2.1:1333 
34778 C11H12O2 
176.21 
CH3 
C2H5 
O 
2-Ethoxy-3-methyl-benzofuran III/35c2 2.2:1155 
O 
34779 C11H12O2 
176.21 
3780-33-4 
O 
O 2,2-Dimethyl-chroman-4-one III/35e 2.2.1:1334 
34780 C11H12O2 
176.21 
H3C CH3 
O 
O 
H3C 
+ 
CH3 
O 
O 
(R,S)-3,6-Dimethyl-isochroman-1-one III/35c2 2.2:1156 
34781 C11H12O2S 
208.28 
OO 
S 
2,2-Dimethyl-2H-thiochromene 1,1-dioxide III/35c2 2.2:1157 
34782 C11H12O3 
192.21 
O 
H3C 
O 
O 
CH3 
(E,Z)-3-(4-Methoxy-phenyl)-acrylic acid 
methyl ester 
III/35e 2.2.1:1335 
34783 C11H12O3 
192.21 
5524-56-1 
H3C 
O 
O 
C2H5 
O Ethyl 2-(4-methylphenyl)-2-oxoacetate; 
4-Methyl-a-oxobenzeneacetic acid ethyl 
ester; 
Oxo-p-tolyl-acetic acid ethyl ester; 
p-Tolyl-glyoxylic acid ethyl ester 
III/35e 2.2.1:1337 
34784 C11H12O3 
192.21 
O 
O 
OPh Ph 
+ 
O 
O 
O 
(R,S)-3-Benzyloxy-dihydro-furan-2-one III/35c2 2.2:1159 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34785 C11H12O3 
192.21 
O 
OO 
Ph 
(1R,5R)-1-Phenyl-6,7,8-trioxa-
bicyclo[3.2.1]octane 
III/35e 2.2.2:2973 
34786 C11H12O3 
192.21 
COOH 
CH3 
H3C 
O 
COOH 
CH3 
H3C 
O 
+ 
(R,S)-2,5-Dimethyl-2,3-dihydro-benzofuran-
4-carboxylic acid 
III/35c2 2.2:1158 
34787 C11H12O4 
208.21 
Ph O 
O 
O 
CH3OH3C 
Acetic acid acetoxy-phenyl-methyl ester III/35e 2.2.1:1338 
34788 C11H12O4 
208.21 
O 
O (4-Methoxy-phenyl)-oxo-acetic acid ethyl 
ester 
III/35e 2.2.1:1339 
C2H5 
O 
O 
H3C 
34789 C11H12O4 
208.21 
OH 
O 
H5C2 
O 
O 
4-Hydroxy-2,3-dihydro-benzofuran-6-
carboxylic acid ethyl ester 
III/35c2 2.2:1160 
34790 C11H12O5S 
256.27 
S 
OO 
C2H5O 
H5C2 
O 
O 
4-Thioxo-4H-pyran-2,6-dicarboxylic acid 
diethyl ester 
III/35c2 2.2:1161 
34791 C11H12O5W 
408.05 
W 
CH2 
O O C2H5 
C 
O 
C 
O 
CO 
C 
C11H12O5W III/35c4 2.2:1163 
34792 C11H12Se 
223.17 
Se 
Ph 
(Cyclopent-1-enylselanyl)-benzene III/35c4 2.2:1164 
34793 C11H13BCl2N4Zr 
374.19 
[H(m-H)B(pz)2]CpZrCl2 III/35a 2.2:978 
34794 C11H13BF4N2O2S 
324.1 
FF 
F 
B(-) 
F 
H3C 
O 
C2H5O 
SN 
N(+) 
4-Ethoxy-3-(4-methoxy-phenyl)-
[1,2,3]thiadiazol-3-ium; tetrafluoro borate 
III/35c2 2.2:1162 
34795 C11H13ClFeO6 
332.51 (-) 
C11H13ClFeO6 III/35c4 2.2:1165 
O(-) O 
Fe(2+) C 
O 
CH2 
O 
C 
Cl 
O O 
H5C2 
34796 C11H13ClO 
196.67 
1710-98-1 
Cl 
O Benzoyl chloride, 4-(1,1-dimethylethyl)-; 
Benzoyl chloride, p-tert-butyl-; 
4-(1,1-Dimethylethyl)benzoyl chloride; 
4-tert-Butyl-benzoyl chloride 
III/35e 2.2.1:1340 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34797 C11H13ClO 
196.67 
O 1-(4-Chloro-phenyl)-2,2-dimethyl-propan-1-
one 
III/35e 2.2.1:1341 
30314-42-2 
Cl 
34798 C11H13Cl2F2NOS 
316.19 
Cl Cl 
O 
1-(1,1-Dichloro-4-ethoxy-2,2-difluoro-butyl)-
1H-pyridine-2-thione 
III/35b 2.2:1128 
N C2H5 
F F 
S 
34799 C11H13CrNO5 
291.22 
See appendix No: 34799 C11H13CrNO5 III/35c4 2.2:1166 
34800 C11H13F 
164.22 
CH3 ((Z)-4-Fluoro-3-methyl-but-3-enyl)-benzene III/35b 2.2:1129 
Ph 
F 
34801 C11H13F 
164.22 
CH3 ((E)-4-Fluoro-1-methyl-but-1-enyl)-benzene III/35b 2.2:1131 
F 
Ph 
34802 C11H13FO 
180.22 
O 
F 
4-tert-Butyl-benzoyl fluoride III/35e 2.2.1:1350 
34803 C11H13FO2 
196.22 F 
O 7-Fluoro-8a-methyl-3,4,8,8a-tetrahydro-
2H,7H-naphthalene-1,6-dione 
III/35b 2.2:1134 
O 
34804 C11H13FO2S 
228.28 S 
O 
O 
C2H5Ph 
(R,S)-Benzylsulfanyl-fluoro-acetic acid ethyl 
ester 
III/35b 2.2:1136 
F 
+ 
O 
S 
O 
C2H5Ph 
F 
34805 C11H13FO3S 
244.28 S 
O 
O C2H5 
(R,S)-Fluoro-(4-methoxy-phenylsulfanyl)-
acetic acid ethyl ester 
III/35b 2.2:1138 
O 
FH3C 
+ 
O 
S O C2H5 
O 
FH3C 
34806 C11H13F3O 
218.22 
OH 
CF3 
CH3 
CH3 
H3C H3C 
+ 
OH 
CF3 
CH3 
CH3 (R,S)-2,2,2-Trifluoro-1-(2,4,6-trimethyl-
phenyl)-ethanol 
III/35b 2.2:1139 
34807 C11H13F3OSi 
246.3 
O (4-Trifluoromethyl-phenyl)-trimethylsilanylmethanone 
III/35e 2.2.1:1351 
Si 
F3C 
34808 C11H13F3O2 
234.22 
OH5C2 
OH 
CF3 
OH5C2 
OH 
CF3 
+ 
(R,S)-2-(4-Ethoxy-phenyl)-3,3,3-trifluoro-
propan-1-ol 
III/35b 2.2:1140 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34809 C11H13F6NO3S 
353.28 
Ph 
N(+) CF3 S 
CF3O(-) 
O O Trifluoro-methanesulfonatedimethyl-phenyl-
(2,2,2-trifluoro-ethyl)-ammonium; 
III/35b 2.2:1141 
34810 C11H13F7O2 
310.21 
F3C 
OH7C3 
O 
C2H5 
F 
CF3 
(E,Z)-Butyric acid 1-(1,2,2,2-tetrafluoro-1-
trifluoromethyl-ethyl)-but-1-enyl ester 
III/35b 2.2:1142 
34811 C11H13F13OSi 
436.29 F13C6 
O 
Si 
Trimethyl-(3,3,4,4,5,5,6,6,7,7,8,8,8-
tridecafluoro-octyloxy)-silane 
III/35e 2.2.2:2974 
34812 C11H13FeO2 
233.06 
Tetramethylcyclopentadienyl-dicarbonyl-
iron (1+) 
III/35e 2.2.7:4633 
(-) 
Fe(2+) 
C C 
O O 
34813 C11H13N 
159.23 
CH3 
C 
CH3 
H3C 
N 
(2-Methyl-propenylidene)-p-tolyl-amine III/35b 3.2:1347 
34814 C11H13N 
159.23 N 
Ph Cyclopentylidene-phenyl-amine III/35b 3.2:1346 
34815 C11H13N 
159.23 
13228-41-6 C3H7 
NH 
1H-Indole, 2-propyl-; 
2-Propyl-1H-indole; 
2-propyl-indole 
III/35c2 2.2:1163 
34816 C11H13NO 
175.23 
O 
C 
CH3 
H3C 
N 
CH3 
(4-Methoxy-phenyl)-(2-methyl-
propenylidene)-amine 
III/35b 3.2:1348 
34817 C11H13NO 
175.23 
H3C O 
NH Ph 
(Z)-4-Benzylamino-but-3-en-2-one III/35e 2.2.1:1342 
34818 C11H13NO 
175.23 
H3C 
O 
NH Ph 
(E)-4-Benzylamino-but-3-en-2-one III/35e 2.2.1:1343 
34819 C11H13NO 
175.23 
H3C 
O 
N 
Ph 
CH3 
(E,Z)-4-(Methyl-phenyl-amino)-but-3-en- 2one 
III/35e 2.2.1:1344 
34820 C11H13NO 
175.23 
O 
H3C NH Ph 
CH3 
(Z)-4-Phenylamino-pent-3-en-2-one III/35e 2.2.1:1345 
34821 C11H13NO 
175.23 
OPh (Z)-3-Ethylamino-1-phenyl-propenone III/35e 2.2.1:1346 
NH 
C2H5 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34822 C11H13NO 
175.23 Ph 
O 
NH CH3 
CH3 
(Z)-3-Methylamino-1-phenyl-but-2-en-1-one III/35e 2.2.1:1347 
34823 C11H13NO 
175.23 
H3C 
CH3 
CH3 N 
C 
O 2-Isocyanato-1-isopropyl-3-methyl-benzene III/35e 2.2.1:1352 
34824 C11H13NO 
175.23 
Ph 
H3C 
CH3 
N 
O 
(4R,5R)-2,4-Dimethyl-5-phenyl-4,5-dihydro-
oxazole 
III/35c2 2.2:1164 
34825 C11H13NO 
175.23 
8-Vinyloxy-1,2,3,4-tetrahydro-quinoline III/35e 2.2.2:2975 
59195-19-6 
H2C 
NHO 
34826 C11H13NOS 
207.29 
CH3 
C2H5 
S 
O 
NH 
+ 
CH3 
C2H5 
S 
O 
NH 
(R,S)-3-Ethyl-3-methylsulfanyl-1,3-dihydro-
indol-2-one 
III/35c2 2.2:1165 
34827 C11H13NOSi 
203.31 
O 4-Trimethylsilanecarbonyl-benzonitrile III/35e 2.2.1:1353 
Si 
NC 
34828 C11H13NO2 
191.23 NH 
Ph 
O 
O 
H5C2 
(Z)-3-Phenylamino-acrylic acid ethyl ester III/35e 2.2.1:1349 
34829 C11H13NO2 
191.23 
CH3 
H3C 
O 
ON 
(R,S)-1-(4-Methoxy-phenyl)-3-methyl-
azetidin-2-one 
III/35c2 2.2:1166 
+ 
CH3 
H3C 
O 
ON 
34830 C11H13NO2 
191.23 
O 5,5-Dimethyl-3-phenyl-oxazolidin-2-one III/35c2 2.2:1171 
O 
PhN 
34831 C11H13NO2 
191.23 
(E/Z) 
CH3 
O 
ONPh 
CH3 
O 
ONPh 
+ 
Benzyl-[(R,S)-4-methyl-[1,3]dioxolan-2-
ylidene]-amine 
III/35c2 2.2:1169 
34832 C11H13NO2 
191.23 
O 
Ph 
O 
N 
4-Benzyl-morpholin-2-one III/35c2 2.2:1168 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34833 C11H13NO2 
191.23 
OH 
O 
OH 
O+ 
(R,S)-1-Ethyl-3-hydroxy-3-methyl-1,3-
dihydro-indol-2-one 
III/35c2 2.2:1170 
N N 
C2H5 C2H5 
34834 C11H13NO2 
191.23 
O 2,2,4-Trimethyl-4H-benzo[1,4]oxazin-3-one III/35c2 2.2:1167 
ON 
CH3 
34835 C11H13NO2S 
223.29 O 
C2H5 
O 
CH3H3C 
S NH 
2,5-Dimethyl-6H-thieno[2,3-b]pyrrole-4-
carboxylic acid ethyl ester 
III/35c2 2.2:1172 
34836 C11H13NO3 
207.23 O 
CH3O 
(E,Z)-3-(But-2-enoyl)-4-methoxy-1-methyl-
1H-pyridin-2-one 
III/35c2 2.2:1173 
CH3 
ON 
CH3 
34837 C11H13NO3S 
239.29 
O 
H3C 
O 
N 
OS 
5-(4,4-Dimethyl-4,5-dihydro-oxazol-2-yl)-
thiophene-2-carboxylic acid methyl ester 
III/35c2 2.2:1174 
34838 C11H13NO4 
223.22 
H3C O 
N 
4-Methoxy-4-methyl-2-phenyl-4,5-dihydro-
oxazol-5-yl-hydroperoxide 
III/35c2 2.2:1176 
HO 
O 
Ph 
O 
34839 C11H13NO4 
223.22 
O 
C2H5 
O 
H3C 
O 
O 
N 
2-Methyl-4-oxo-4,7-dihydro-5H-furo[2,3-
c]pyridine-6-carboxylic acid ethyl ester 
III/35c2 2.2:1175 
34840 C11H13NO4S 
255.29 
CH3 
O 
O 
OO 
N 
H3C 
S 
(S)-4-Methyl-3-(toluene-4-sulfonyl)-
oxazolidin-5-one 
III/35c2 2.2:1177 
34841 C11H13NO4S2 
287.36 
O 
OS S 
C11H13NO4S2 III/35c2 2.2:1178 
H3C C2H5 
ON(+) 
O(-) 
H2C 
34842 C11H13NO5 
239.22 
OO 
C2H5O 
H5C2 
O 
O 
NH 
4-Oxo-1,4-dihydro-pyridine-3,5-dicarboxylic 
acid diethyl ester 
III/35c2 2.2:1179 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34843 C11H13NS 
191.29 
1-Ethylsulfanyl-3,4-dihydro-isoquinoline III/35c2 2.2:1180 
N 
S 
C2H5 
34844 C11H13N2O8P 
332.2 
ee appendix No: 34844S(2S*,4R*,6S*)-2-(2,4-Dinitro-phenoxy)-4,6-
dimethyl-[1,3,2]dioxaphosphinane 2-oxide 
III/35e 2.2.4:3799 
34845 C11H13N3 
187.24 
HN 
Ph 
NH 
N 
5,5-Dimethyl-2-phenyl-3,5-dihydro-
imidazol-4-ylideneamine 
III/35c2 2.2:1182 
34846 C11H13N3 
187.24 
CH3 
C2H5 
N 
N 
N 
Ph 
5-Ethyl-1-methyl-3-phenyl-1H-
[1,2,4]triazole 
III/35c2 2.2:1181 
34847 C11H13N3O2 
219.24 N 
N 
O C11H13N3O2 III/35b 3.2:1349 
N CH3 
CH3 
H3C 
O 
34848 C11H13N3O2 
219.24 CH3 
C2H5 
O 
N 
N 
3-Ethyl-4-methyl-3,4-dihydro-1H-
benzo[e][1,2,4]triazepine-2,5-dione 
III/35c2 2.2:1183 
NH 
O 
34849 C11H13N3O3 
235.24 N 
N 
O C11H13N3O3 III/35b 3.2:1350 
N CH3 
O 
CH3H3C 
O 
34850 C11H13N3O3 
235.24 
N 
H3C 
O O 
CN 
2-Oxo-4-(1,3,6-trimethyl-2,4-dioxo-1,2,3,4-
tetrahydro-pyrimidin-5-yl)-butyronitrile 
III/35e 2.2.1:1354 
CH3O N 
CH3 
34851 C11H13N3O3 
235.24 
O 
C2H5O 
H3C O 
N 
1,5-Dimethyl-7-oxo-4,7-dihydro-1H-
imidazo[4,5-b]pyridine-6-carboxylic acid 
ethyl ester 
III/35c2 2.2:1184 
CH3 
N NH 
34852 C11H13N3O3 
235.24 
O 
CH3 
O 
N 
N 
H3C 
O 
CN 
1,3,8a-Trimethyl-2,4-dioxo-1,3,4,4a,5,8a-
hexahydro-2H-pyrano[2,3-d]pyrimidine-7-
carbonitrile 
III/35e 2.2.1:1355 
34853 C11H13N3S 
219.31 Ph 
NH 
NH2 
H3C 
SN 
N5-Benzyl-3-methyl-isothiazole-4,5-diamine III/35c2 2.2:1185 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34854 C11H13N4OPS2 
312.35 
See appendix No: 34854 (R,S)-6-Ethyl-2-(4-methoxy-phenyl)-
[1,2,4]triazolo[4,3-
d][1,3,4,2]thiadiazaphosphole 2-sulfide 
III/35c2 2.2:1186 
34855 C11H13N5O 
231.25 O 
H2N 
N 
5-Benzylamino-1-methyl-1H-[1,2,3]triazole-
4-carboxylic acid amide 
III/35c2 2.2:1187 
N 
PhNHN 
CH3 
34856 C11H13OP 
192.19 
CH3 
Ph 
(1S,2R)-2-Methyl-1-phenyl-2,5-dihydro-
phosphole 1-oxide 
III/35e 2.2.4:3800 
P 
O 
34857 C11H13OP 
192.19 
CH3 
Ph 
(1S,2S)-2-Methyl-1-phenyl-2,5-dihydro-
phosphole 1-oxide 
III/35e 2.2.4:3801 
P 
O 
34858 C11H13OP 
192.19 P 
H3C 
O 
Ph 4-Methyl-1-phenyl-2,3-dihydro-phosphole 
1-oxide 
III/35e 2.2.4:3802 
34859 C11H13O2P 
208.19 PO 
Ph 
O 
1-Oxo-1-phenyl-1.5-phosphinan-4-one III/35e 2.2.4:3803 
34860 C11H14BNO 
187.05 B 
O CH2 C11H14BNO III/35a 2.2:979 
N 
Ph 
34861 C11H14BN6ORe 
S2 
507.42 N N 
N N 
N N 
Re 
S 
HB 
O 
S 
C11H14BN6OReS2 III/35c4 2.2:1167 
34862 C11H14BrN3 
268.15 
N 
Br 
N 
N 
C11H14BrN3 III/35b 3.2:1351 
34863 C11H14ClFS 
232.75 F 
S 
Cl 
Ph Ph+ S 
Cl 
F 
((R,S)-1-Chloro-2-fluoro-2-methyl-
propylsulfanylmethyl)-benzene 
III/35b 2.2:714 
34864 C11H14ClN 
195.69 
H3C 
CH3 
Cl 
N 5-Chloroethynyl-4-isopropylidene-2,2-
dimethyl-3,4-dihydro-2H-pyrrole 
III/35c2 2.2:1188 
34865 C11H14ClN3 
223.7 
N 
Cl 
N 
N 
C11H14ClN3 III/35b 3.2:1352 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34866 C11H14ClN5O 
267.71 
N N 
NCl 
CH3 
6-(2-Amino-6-chloro-purin-9-yl)-hexan-2-
one 
III/35b 3.2:1353 
N 
O 
H2N 
34867 C11H14Cl2OSi 
261.22 
Ph 
SiCl 
(2,2-Dichloro-1-phenyl-vinyloxy)-trimethyl-
silane 
III/35e 2.2.2:2976 
O 
Cl 
34868 C11H14Cl3F2NO6 
400.59 
H5C2 
O 
O 
NH 
O 
F 
F 
O 
C2H5 
O 
2-Difluoromethyl-2-(2,2,2-trichloro-
ethoxycarbonylamino)-malonic acid diethyl 
ester 
III/35b 2.2:1143 
O 
CCl3 
34869 C11H14FNO 
195.23 
O C11H14FNO III/35b 2.2:1144 
Ph N 
F 
34870 C11H14FNO 
195.23 N 
C 
O 
F 
3-Fluoro-1-isocyanato-adamantane III/35b 2.2:1145 
34871 C11H14FNOS 
227.3 Ph S 
F 
O 
NHC3H7 + Ph S 
F 
O 
NHC3H7 
(R,S)-2-Fluoro-2-phenylsulfanyl-N-propyl-
acetamide 
III/35b 2.2:1146 
34872 C11H14FN3 
207.25 
N 
F 
N 
N 
C11H14FN3 III/35b 3.2:1354 
34873 C11H14F2OSe 
279.19 H9C4 O Se 
F F 
Ph 
(Butoxy-difluoro-methylselanyl)-benzene III/35b 2.2:1147 
34874 C11H14F2OSi 
228.31 O 
F (2,2-Difluoro-1-phenyl-vinyloxy)-trimethyl-
silane 
III/35b 2.2:1148 
SiF 
Ph 
34875 C11H14F2Si 
212.31 F Si 
(3,3-Difluoro-allyl)-dimethyl-phenyl-silane III/35b 2.2:1149 
Ph 
F 
34876 C11H14F3NO 
233.23 
PhF3C 
OH NH 
CH3 (2S,4R)-1,1,1-Trifluoro-4-methylamino-4-
phenyl-butan-2-ol 
III/35b 2.2:1151 
34877 C11H14F4O3 
270.22 O 
F CF3 
O 
2,3,3,3-Tetrafluoro-2-(3-oxo-cyclohexyl)propionic 
acid ethyl ester 
III/35b 2.2:1152 
C2H5 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34878 C11H14F6N2O3 
336.23 
N 
NH 
CF3 
F3C 
1-Diaziridinebutanoic acid, a-(S), .-
dimethyl--oxo-3,3-bis(trifluoromethyl)-, 
ethyl ester 
III/35b 2.2:1153 
O 
CH3 
O 
H3C C2H5 
O 
34879 C11H14F6N2O3 
336.23 HN 
N 
CF3 
CF3 
1-Diaziridinebutanoic acid, a-(R), .-
dimethyl--oxo-3,3-bis(trifluoromethyl)-, 
ethyl ester 
III/35b 2.2:1154 
O 
CH3 
O 
H3C C2H5 
O 
34880 C11H14F12N3O6P3 
605.15 OO 
F3C 1,7,9,9-Tetrakis-(2,2,2-trifluoro-ethoxy)-2,6-
dioxa-8,10,11-triaza-1.5,7.5,9.5-
III/35a 3.2:980 
N 
P 
NF3C 
triphospha-bicyclo[5.3.1]undeca-
1(10),7(11),8-triene 
P PO O 
NO O 
CF3 
F3C 
34881 C11H14F12N3O6P3 
605.15 
P 
N 
P 
N 
P 
N 
O 
O O 
O 
O 
F3C 
F3C 
CF3 
O 
CF3 
2,2,4,4-Tetrakis-(2,2,2-trifluoro-ethoxy)-
7,11-dioxa-1,3,5-triaza-2.5,4.5,6.5-
triphospha-spiro[5.5]undeca-1(6),2,4-triene 
III/35a 3.2:981 
34882 C11H14INS2 
351.27 I(-) Ph 
CH3 
S 
N(+) 
3-Benzyl-2-methylsulfanyl-4,5-dihydro-
thiazol-3-ium iodide 
III/35c2 2.2:1189 
S 
34883 C11H14NO3P 
239.21 
O2N 
O 
P 
1-(4-Nitro-phenyl)-2-(trimethyl-.5-
phosphanylidene)-ethanone 
III/35e 2.2.1:1356; 
III/35e 2.2.3:3612 
34884 C11H14NO3P 
239.21 
28255-72-3 NC P 
O 
O 
C2H5 
O C2H5 
(4-Cyano-phenyl)-phosphonic acid diethyl 
ester; 
Diethyl 4-cyanophenylphosphonate 
III/35e 2.2.4:3804 
34885 C11H14NO6P 
287.21 
See appendix No: 34885 (2S*,4R*,6S*)-4,6-Dimethyl-2-(4-nitro-
phenoxy)-[1,3,2]dioxaphosphinane 2-oxide 
III/35e 2.2.4:3805 
34886 C11H14NO6P 
287.21 
See appendix No: 34886 (2R*,4R*,6S*)-4,6-Dimethyl-2-(4-nitro-
phenoxy)-[1,3,2]dioxaphosphinane 2-oxide 
III/35e 2.2.4:3806 
34887 C11H14NO6P 
287.21 
See appendix No: 34887 (4R*,6R*)-4,6-Dimethyl-2-(4-nitro-
phenoxy)-[1,3,2]dioxaphosphinane 2-oxide 
III/35e 2.2.4:3807 
34888 C11H14NP 
191.21 
P 
N 
C 
CH2 
Ph 
H3C CH3 C11H14NP III/35c4 2.2:1168 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34889 C11H14NPSSi 
251.36 
SN 
P SiPh 
3-Phenyl-5-trimethylsilanyl-
[1,2,4]thiazaphosphole 
III/35a 3.2:982 
34890 C11H14N2 
174.24 
CH3 
N 
CH3 4-Dimethylamino-3,5-dimethyl-benzonitrile III/35b 3.2:1355 
CH3 
NC CH3 
34891 C11H14N2 
174.24 
NHN 
2-tert-Butyl-1H-pyrrolo[2,3-b]pyridine III/35c2 2.2:1190 
34892 C11H14N2O 
190.24 
H3C 
N 
N 
4-(4,4-Dimethyl-4,5-dihydro-oxazol-2-yl)-3-
methyl-pyridine 
III/35c2 2.2:1192 
O 
34893 C11H14N2O 
190.24 
O 
PhN 
O 
N+ Ph 
(R,S)-6-Methyl-2-phenyl-tetrahydro-
pyridazin-3-one 
III/35c2 2.2:1191 
NH NH 
H3C H3C 
34894 C11H14N2O 
190.24 O 
CH3NHN 
N-(5,6,7,8-Tetrahydro-quinolin-2-yl)-
acetamide 
III/35c2 2.2:1193 
34895 C11H14N2OS 
222.31 
H3C 
NC 
O 
S 
N 
(R,S)-3,3-Dimethyl-2-(4-methyl-thiazole-2-
carbonyl)-butyronitrile 
III/35c2 2.2:1194 
+ 
NC 
H3C O 
S 
N 
34896 C11H14N2O2 
206.24 
O N-(3-Formyl-pyridin-2-yl)-2,2-dimethyl-
propionamide 
III/35c2 2.2:1195 
O 
NHN 
34897 C11H14N2O2 
206.24 
NC 
CH3 1-Butyl-6-hydroxy-4-methyl-2-oxo-1,2-
dihydro-pyridine-3-carbonitrile 
III/35c2 2.2:1196 
OHO N 
C4H9 
34898 C11H14N2O3 
222.24 
CH3 
O 
1-[6-Acetyl-4-(2-amino-ethoxy)-pyridin-2-yl]-
ethanone 
III/35c2 2.2:1198 
O NH2 
N 
O CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34899 C11H14N2O3 
222.24 
O (6-Oxo-1,4,5,6,7,8-hexahydro-pyrrolo[2,3-
c]azepin-3-yl)-acetic acid methyl ester 
III/35c2 2.2:1197 
NHH3C 
O 
O 
NH 
34900 C11H14N2O4 
238.24 CH3 
O O 4-Dimethylamino-pyridine-2,6-dicarboxylic 
acid dimethyl ester 
III/35c2 2.2:1199 
N 
H3C 
N CH3 
O 
OCH3 
34901 C11H14N4 
202.26 
C2H5 
NH 
H2N 
NHN 
Ph 
N3-Ethyl-5-phenyl-2H-pyrazole-3,4-diamine III/35c2 2.2:1200 
34902 C11H14N4O2S 
266.32 
C2H5 2-Ethyl-5-methylsulfanyl-[1,2,4]triazolo[1,5-
c]pyrimidine-8-carboxylic acid ethyl ester 
III/35c2 2.2:1201 
NN 
CH3 
O 
H5C2 O 
S 
N 
N 
34903 C11H14N6 
230.27 
NH2 
N 
N 
H11C5 
5-Amino-2-pentyl-[1,2,4]triazolo[1,5-
c]pyrimidine-8-carbonitrile 
III/35c2 2.2:1202 
NN 
NC 
34904 C11H14O 
162.23 
CH3 O Acetophenone, 2',4',6'-trimethyl-; 
Ethanone, 1-(2,4,6-trimethylphenyl)-; 
III/35e 2.2.1:1360 
1667-01-2 CH3 
1-(2,4,6-Trimethyl-phenyl)-ethanone; 
1-(2,4,6-Trimethylphenyl)-1-ethanone 
H3C CH3 
34905 C11H14O 
162.23 
33186-68-4 
Ph 
O Cyclopentyl-phenyl ether; 
Cyclopentyloxy-benzene 
III/35e 2.2.2:2977 
34906 C11H14O 
162.23 
O 
3,4,5,6-Tetrahydro-2H-benzo[b]oxocine III/35c2 2.2:1203 
34907 C11H14OPd 
268.63 
(delocalized system) 
O 
H3C 
C11H14OPd III/35c4 2.2:1169 
CH(-) 
(-)Pd(2+) 
CH2 
34908 C11H14OTe 
289.83 
Ph 
O 
Te 
C4H9 
Tellurobenzoic acid Te-butyl ester; 
Tellurobenzoic acid Te-butyl ester 
III/35e 2.2.1:1361 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34909 C11H14O2 
178.23 
OCH3 1-(4-Methoxy-2,6-dimethyl-phenyl)-
ethanone 
III/35e 2.2.1:1363 
CH3 
CH3O 
H3C 
34910 C11H14O2 
178.23 
2282-84-0 
O 
O 
CH3 
CH3 
H3C 
CH3 
2,4,6-Trimethyl-benzoic acid methyl ester III/35e 2.2.1:1364 
34911 C11H14O2 
178.23 O 
CH3 
O 
H3C 
4,5-Dimethoxy-indan III/35e 2.2.2:2978 
34912 C11H14O2 
178.23 H2C 
H3C 
O 
O 
H2C 
H3C 
O 
O 
+ 
(R,S)-2-Isopropenyl-3,5,6,7-tetrahydro-2H-
benzofuran-4-one 
III/35c2 2.2:1204 
34913 C11H14O2 
178.23 
CH3 
CH3O 
2,4,8-Trimethyl-4H-benzo[1,3]dioxine III/35c2 2.2:1205 
O 
CH3 
34914 C11H14O3 
194.23 
O 
CH3O 
CH2 
H3C 
O 
5-(3-Methyl-but-3-enyl)-furan-2-carboxylic 
acid methyl ester 
III/35c2 2.2:1209 
34915 C11H14O3 
194.23 
OCH3 
CH3OH3C O 
Acetic acid (E)-(R,S)-1-methyl-3-(5-methyl-
furan-2-yl)-allyl ester 
III/35c2 2.2:1206 
+ 
OCH3 
CH3OH3C O 
34916 C11H14O3 
194.23 
Ph 
O 
O 
O 
Benzenecarboperoxoic acid tert-butyl ester III/35e 2.2.1:1365 
34917 C11H14O3 
194.23 
CH3O 
CH3O (R,S)-4,7-Dimethoxy-2-methyl-2,3-dihydro-
benzofuran 
III/35c2 2.2:1208 
O O 
CH3 CH3+ 
CH3 
O 
CH3 
O 
34918 C11H14O3 
194.23 
C2H5 
O 
4,7-Diethyl-1H,3H-furo[3,4-c]pyran-6-one III/35c2 2.2:1207 
O 
O 
C2H5 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34919 C11H14O4S5 
370.55 
O 
H3C O 
S S 
S 
S 
Acetic acid 2-[5-(2-acetoxy-ethylsulfanyl)-2-
thioxo-[1,3]dithiol-4-ylsulfanyl]-ethyl ester 
III/35c2 2.2:1210 
S 
O 
H3C 
O 
34920 C11H14O5 
226.23 
O 
CH3O 
CH3 
O 
2-Methyl-6,7-dihydro-oxepine-3,4-
dicarboxylic acid dimethyl ester 
III/35c2 2.2:1211 
O 
CH3 
O 
34921 C11H14Pd 
252.63 
(-) 
(delocalized system) 
Pd(2+) 
CH(-) 
C11H14Pd III/35c4 2.2:1170 
34922 C11H14Se 
225.19 
Ph 
Se 
CH3 
C2H5 
((E)-1-Methyl-but-1-enylselanyl)-benzene III/35c4 2.2:1172 
34923 C11H14Se 
225.19 
Ph 
CH3 ((Z)-1-Methyl-but-1-enylselanyl)-benzene III/35c4 2.2:1173 
Se 
C2H5 
34924 C11H14Se 
225.19 
Ph 
Se 
CH3 
CH3 
CH3 
(1,2-Dimethyl-propenylselanyl)-benzene III/35c4 2.2:1174 
34925 C11H14Se 
225.19 
Ph 
Se 
C2H5 
CH3 
((E)-1-Ethyl-propenylselanyl)-benzene III/35c4 2.2:1175 
34926 C11H14Se 
225.19 
Ph 
C2H5 ((Z)-1-Ethyl-propenylselanyl)-benzene III/35c4 2.2:1176 
Se 
CH3 
34927 C11H14Se 
225.19 
Se 
Ph 
Cyclopentylselanyl-benzene III/35c4 2.2:1171 
34928 C11H15BClN6ORe 
S 
511.81 N N 
N N 
N N 
Re 
S 
HB 
O 
Cl 
C2H5 
C11H15BClN6OReS III/35c4 2.2:1177 
34929 C11H15BClN6O2V 
360.48 NN N 
BH C11H15BClN6O2V III/35c4 2.2:1178 
NN 
V 
N 
O O 
C2H5 
Cl 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34930 C11H15BO2 
190.05 
Ph 
O 
O 
B 
C2H5 
C2H5 C11H15BO2 III/35a 2.2:980 
34931 C11H15B2Co 
227.79 
(-) 
B B 
Co(+) 
H3C CH3 
C11H15B2Co III/35a 2.2:981 
34932 C11H15BrN2O2 
287.15 O O 
NHBr 
2-(2-Bromo-acetyl)-pyrrole-1-carboxylic 
acid tert-butylamide 
III/35c2 2.2:1212 
N 
34933 C11H15BrOSi 
271.23 
Ph 
Si 
((Z)-2-Bromo-1-phenyl-vinyloxy)-trimethyl-
silane 
III/35e 2.2.2:2979 
O 
Br 
34934 C11H15ClN2OS 
258.77 
CH3 
SCl 
N-(5-Chloro-3-methylsulfanyl-pyridin-2-yl)-
2,2-dimethyl-propionamide 
III/35c2 2.2:1213 
O 
NHN 
34935 C11H15Cl2OP 
265.12 
Cl CH3 4-Dichloromethylene-3,5-dimethyl-1-propyl-
4H-phosphinine 1-oxide 
III/35c2 2.2:1214 
Cl 
C3H7 
O 
H3C 
P 
34936 C11H15F3O 
220.23 
OHHF3C (1R,8aS)-1-Trifluoromethyl-
1,2,3,4,6,7,8,8a-octahydro-naphthalen-1-ol 
III/35b 2.2:1156 
34937 C11H15F3O3 
252.23 
O 
O 
C2H5H3C 
(R,S)-6-Methyl-4-oxo-2-trifluoromethyl-
hept-5-enoic acid ethyl ester 
III/35b 2.2:1158 
O CF3CH3 
+ 
O 
O 
C2H5H3C 
O CF3CH3 
34938 C11H15F3O3 
252.23 CF3 
2-(Cyclohex-2-enyloxy)-3,3,3-trifluoro-
propionic acid ethyl ester 
III/35b 2.2:1157 
O 
O C2H5 
O 
34939 C11H15F6MnO2P2 
410.11 P 
FF 
F 
Benzene-trimethylphosphine-dicarbonyl-
manganese(I) hexafluorophosphate 
III/35c4 2.2:1179 
Mn(+) P(-) 
C F F 
C O F 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34940 C11H15F6MnO5P2 
458.11 
Mn(+) 
P O 
O 
O 
P(-) 
FF 
F 
CH3 CH3 
CH3 
Benzene-trimethyloxyphosphine-
dicarbonyl-manganese(I) 
hexafluorophosphate 
III/35c4 2.2:1180 
C F F 
C O F 
O 
34941 C11H15N 
161.24 
(E/Z) 
CH3 
Isobutyl-[1-phenyl-methylidene]-amine III/35b 3.2:1356 
NPh 
CH3 
34942 C11H15N 
161.24 
(E/Z) 
NPh 
tert-Butyl-[1-phenyl-methylidene]-amine III/35b 3.2:1357 
34943 C11H15N 
161.24 
NPh C2H5 
CH3 
Benzyl-[1-methyl-prop-(E)-ylidene]-amine III/35b 3.2:1358 
34944 C11H15N 
161.24 Ph N 
CH3 Dimethyl-(2-phenyl-cyclopropyl)-amine III/35b 3.2:1359 
CH3 
34945 C11H15N 
161.24 
14429-09-5 
CH3 
CH3 
N 
CH3 
CH3 
N+ 
(R,S)-1,2-Dimethyl-1,2,3,4-tetrahydro-
isoquinoline; 
Isoquinoline, 1,2,3,4-tetrahydro-1,2-
dimethyl-
III/35c2 2.2:1216 
34946 C11H15N 
161.24 
CH3 
CH3 
N 
(S)-2,3-Dimethyl-1,2,3,4-tetrahydro-
isoquinoline 
III/35c2 2.2:1215 
34947 C11H15NO 
177.24 
OH 
N 
2-[tert-Butylimino-methyl]-phenol III/35e 2.2.2:2980 
34948 C11H15NOS 
209.31 
O 
S 
C2H5 
4-Dimethylamino-thiobenzoic acid S-ethyl 
ester 
III/35e 2.2.1:1367 
H3C 
N 
CH3 
34949 C11H15NOS 
209.31 Ph 
NH S 
C4H9 
O Phenyl-thiocarbamic acid butyl ester III/35e 2.2.1:1368 
34950 C11H15NOS 
209.31 N 
S 
O 
H3C 
1-(5-Piperidin-1-yl-thiophen-2-yl)-ethanone III/35e 2.2.1:1366 
34951 C11H15NOS 
209.31 NH 
H3C 
NH 
H3C ((R,S)-1-Methylaminomethyl-1,3-dihydro-
benzo[c]thiophen-1-yl)-methanol 
III/35e 2.2.2:2981 
OH OH+ 
S S 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34952 C11H15NO2 
193.24 
CH3 
N 
CH3 4-Dimethylamino-3,5-dimethyl-benzoic acid III/35b 3.2:1360 
CH3 
HOOC CH3 
34953 C11H15NO2 
193.24 
N 
H3C 
H3C 
CH3 
O 
O 
Acetic acid 4-dimethylamino-benzyl ester III/35e 2.2.2:2982 
34954 C11H15NO2 
193.24 
1538-74-5 Ph 
NH O 
C4H9 
O Phenyl-carbamic acid butyl ester III/35e 2.2.1:1369 
34955 C11H15NO2 
193.24 
O 6-Methyl-3-pentanoyl-1H-pyridin-2-one III/35c2 2.2:1217 
C4H9 
H3C ONH 
34956 C11H15NO2 
193.24 
H5C2O 
OH3C 
CH3N 
H5C2O 
H3C 
N+ 
O 
CH3 
1-((R,S)-1-Acetyl-3-ethyl-1,4-dihydro-
pyridin-4-yl)-ethanone 
III/35c2 2.2:1218 
34957 C11H15NO2 
193.24 
O 
ON 
Azepine-1-carboxylic acid tert-butyl ester III/35c2 2.2:1220 
34958 C11H15NO2 
193.24 
O C2H5 
O 
N 
5,6,7,8-Tetrahydro-indolizine-1-carboxylic 
acid ethyl ester 
III/35c2 2.2:1219 
34959 C11H15NO2S 
225.31 
OH 
N 
OS 
2-[2-(4,4-Dimethyl-4,5-dihydro-oxazol-2-yl)-
thiophen-3-yl]-ethanol 
III/35c2 2.2:1221 
34960 C11H15NO2S 
225.31 
O 
NH 
S 
O 
CH3 
Ph 
Benzyl-(2-methanesulfonyl-1-methyl-vinyl)amine 
III/35e 2.2.5:4284 
34961 C11H15NO2S 
225.31 
N 
S 
O O 
Ph 
1-Benzenesulfonyl-piperidine III/35b 3.2:1361 
34962 C11H15NO2S2 
257.37 
C2H5 
N S 
4-Diethylamino-6-thioxo-6H-thiopyran-3-
carboxylic acid methyl ester 
III/35c2 2.2:1222 
H5C2 
O S 
H3C 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34963 C11H15NO3 
209.24 
H3C 
O 
O 
ON 
2-Formyl-3-methyl-pyrrole-1-carboxylic acid 
tert-butyl ester 
III/35c2 2.2:1223 
34964 C11H15NO3 
209.24 OO 
N-(6-tert-Butyl-2-oxo-2H-pyran-3-yl)acetamide 
III/35c2 2.2:1224 
O 
NH CH3 
34965 C11H15NO3S2 
273.37 
O 
CH3 
O 
3-Diethylthiocarbamoyloxy-thiophene-2-
carboxylic acid methyl ester 
III/35c2 2.2:1225 
C2H5 
N O 
H5C2 S 
S 
34966 C11H15NO4S 
257.31 
O 
H3C 
O N 
CH2 
O 
(Z)-3-(2,2-Dimethyl-4-methylene-5-oxo-
oxazolidin-3-yl)-2-methylsulfanyl-acrylic 
acid methyl ester 
III/35c2 2.2:1226 
H3C 
S 
O 
34967 C11H15NO6S2 
321.37 
OH 
H3C 
O 
N 
O 
C2H5 
O 
[3-(2,2-Dimethoxy-ethyl)-4-hydroxy-2-
thioxo-2,3-dihydro-thiazol-5-yl]-oxo-acetic 
acid ethyl ester 
III/35c2 2.2:1227 
O S O 
H3C S 
34968 C11H15NSn 
279.93 
1-Trimethylstannanyl-1H-indole III/35c4 2.2:1181 
N 
Sn 
34969 C11H15N3 
189.26 
25643-78-1 N 
CH3 
N 
Ph 
(1,3-Dimethyl-imidazolidin-2-ylidene)-
phenyl-amine 
III/35b 3.2:1362 
N 
CH3 
34970 C11H15N3 
189.26 Ph 
N 
N 
N 
C11H15N3 III/35b 3.2:1363 
34971 C11H15N3O 
205.26 N 
H5C2 
N 
N CH3 
CH3 
O C11H15N3O III/35b 3.2:1364 
34972 C11H15N3O3 
237.25 
O 
N 
CH3 N-(2-Dimethylamino-ethyl)-2-nitro-
benzamide 
III/35e 2.2.3:3613 
NH CH3 
NO2 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34973 C11H15N5 
217.27 
NH2 
CH3N 
(5-Aminomethyl-3-benzyl-3H-[1,2,3]triazol-
4-yl)-methyl-amine 
III/35c2 2.2:1228 
NH 
NN 
Ph 
34974 C11H15OP 
194.21 
O CH3 3-Methyl-1-phenylphosphanyl-butan-1-one III/35a 3.2:983 
Ph 
PH CH3 
34975 C11H15OP 
194.21 
Ph 
P 
O 1-Phenyl-2-(trimethyl-.5-phosphanylidene)-
ethanone 
III/35e 2.2.1:1370 
34976 C11H15O2P 
210.21 
PH 
Ph 
O 
O 
C4H9 
C11H15O2P III/35a 3.2:984 
34977 C11H15O2PSe 
289.17 
CH3 CH3 (2S*,4S*)-2-Benzyl-4-methyl-
[1,3,2]dioxaphosphinane 2-selenide 
III/35a 3.2:985 
O Ph + O Ph 
P P 
SeO SeO 
34978 C11H15O2PSe 
289.17 
CH3 CH3 (2R*,4S*)-2-Benzyl-4-methyl-
[1,3,2]dioxaphosphinane 2-selenide 
III/35a 3.2:986 
O Ph + O Ph 
P P 
SeO SeO 
34979 C11H15O4P 
242.21 
PhO 
H3C 
O 
P 
O 
H3C 
+ PhO 
O 
P 
O 
(2S*,4S*,6R*)-4,6-Dimethyl-2-phenoxy-
[1,3,2]dioxaphosphinane 2-oxide 
III/35e 2.2.4:3808 
O O 
H3C H3C 
34980 C11H15O4P 
242.21 
H3C 
OO 
H3C 
OO 
(2R*,4S*,6R*)-4,6-Dimethyl-2-phenoxy-
[1,3,2]dioxaphosphinane 2-oxide 
III/35e 2.2.4:3809 
PhOP + PhOP 
O O 
H3C H3C 
34981 C11H15O4P 
242.21 
H3C 
OO 
H3C 
OO 
(4R*,6R*)-4,6-Dimethyl-2-phenoxy-
[1,3,2]dioxaphosphinane 2-oxide 
III/35e 2.2.4:3810 
PhOP + PhOP 
O O 
H3C H3C 
34982 C11H15O4PS 
274.27 
S 
O 
P 
O 
O C2H5 
O 
C2H5 
(R,S)-Benzo[1,3]oxathiol-2-yl-phosphonic 
acid diethyl ester 
III/35a 3.2:987 
+ 
O O 
O 
P C2H5 
S O C2H5 
34983 C11H16FNO 
197.25 
F 
O NH2 3-Fluoro-adamantane-1-carboxylic acid 
amide 
III/35b 2.2:1159 
34984 C11H16FO3PS 
278.28 
See appendix No: 34984 ((R,S)-Fluoro-phenylsulfanyl-methyl)phosphonic 
acid diethyl ester 
III/35b 2.2:1160 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34985 C11H16FO5PS 
310.28 
See appendix No: 34985 ((R,S)-Benzenesulfonyl-fluoro-methyl)phosphonic 
acid diethyl ester 
III/35b 2.2:1161 
34986 C11H16F12N5O4P3 
603.18 
N 
P 
N 
NH 
F3C 
O 
F3C 1,7,9,9-Tetrakis-(2,2,2-trifluoro-ethoxy)-
2,6,8,10,11-pentaaza-1.5,7.5,9.5-
triphospha-bicyclo[5.3.1]undeca-
1(10),7(11),8-triene 
III/35a 3.2:988 
P PO NH 
NO O 
CF3 
F3C 
34987 C11H16F12N5O4P3 
603.18 
P 
N 
P 
N 
P 
N 
O 
O O 
O 
NH 
F3C 
F3C 
CF3 
NH 
CF3 
2,2,4,4-Tetrakis-(2,2,2-trifluoro-ethoxy)-
1,3,5,7,11-pentaaza-2.5,4.5,6.5-
triphospha-spiro[5.5]undeca-1(6),2,4-triene 
III/35a 3.2:989 
34988 C11H16IP 
306.12 
CH3 (3aR,7aR)-1,1,3-Trimethyl-3a,7a-dihydro-
1H-phosphindolium iodide 
III/35a 3.2:990 
I(-) 
P(+) 
34989 C11H16N2O 
192.26 
O 
N 
CH3 
4-Dimethylamino-N,N-dimethyl-benzamide III/35e 2.2.1:1371 
H3C CH3N 
CH3 
34990 C11H16N2O 
192.26 
CH3 
O 
CH3N 
N 2,4-Dimethyl-2-pyrazin-2-yl-pentan-3-one III/35c2 2.2:1229 
34991 C11H16N2OS 
224.32 
CH3 
O 
S 
NHN 
2,2-Dimethyl-N-(3-methylsulfanyl-pyridin-2-
yl)-propionamide 
III/35c2 2.2:1230 
34992 C11H16N2O4 
240.26 
CH3 
CH3 
NO2 
O 
H5C2 
O 
N 
H3C 
1-Isopropyl-5-methyl-4-nitro-1H-pyrrole-2-
carboxylic acid ethyl ester 
III/35c2 2.2:1231 
34993 C11H16N2O4 
240.26 O 
O 
CH2 
CH3 
N 
H3C 5-Allyl-5-(2-hydroxy-propyl)-1-methyl-
pyrimidine-2,4,6-trione 
III/35b 3.2:1365 
NH OH 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
34994 C11H16N2O4 
240.26 
N O 
H3C 
O O 
CH3 
3-(1,3,6-Trimethyl-2,4-dioxo-1,2,3,4-
tetrahydro-pyrimidin-5-yl)-propionic acid 
methyl ester 
III/35e 2.2.1:1373 
N CH3O 
CH3 
34995 C11H16N2O4 
240.26 
See appendix No: 34995 (R,S)-3-(1,3,6-Trimethyl-2,4-dioxo-1,2,3,4-
tetrahydro-pyrimidin-5-yl)-butyric acid 
III/35e 2.2.1:1372 
34996 C11H16N2O4S 
272.32 
CH3S 
OH3C Acetic acid 3-[3,6-dioxo-piperazin-(2E)-
ylidene]-4-methylsulfanyl-butyl ester 
III/35c2 2.2:1232 
O O 
NH 
NH 
O 
34997 C11H16N3PSi 
249.32 N 
P 
NN 
Ph 
Si 
3-Benzyl-5-trimethylsilanyl-3H-
[1,2,3,4]triazaphosphole 
III/35a 3.2:991 
34998 C11H16N4O 
220.27 N 
N 
O C11H16N4O III/35b 3.2:1366 
N CH3 
N CH3 
H3C 
CH3 
34999 C11H16N4O 
220.27 N 
CH3 C11H16N4O III/35b 3.2:1367 
N 
N CH3 
CH3 
H2N 
O 
35000 C11H16N4O 
220.27 
O NH2 3-Cyclohexylamino-pyrazine-2-carboxylic 
acid amide 
III/35c2 2.2:1233 
NH 
N 
N 
35001 C11H16Ni 
206.94 
(-) 
(delocalized system) 
Ni(2+) 
CH2(-) 
C11H16Ni III/35c4 2.2:1182 
35002 C11H16Ni 
206.94 
(delocalized system) 
H3C 
C11H16Ni III/35c4 2.2:1183 
CH(-) 
(-)Ni(2+) 
H3C 
35003 C11H16Ni 
206.94 
(delocalized system) 
H3C 
C11H16Ni III/35c4 2.2:1184 
CH(-) 
(-)Ni(2+) 
CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
35004 C11H16Ni 
206.94 
(delocalized system) 
H3C 
C11H16Ni III/35c4 2.2:1185 
CH(-) 
(-)Ni(2+) 
35005 C11H16O 
164.24 
2189-88-0 Ph 
O 
Benzene, (2,2-dimethylpropoxy)-; 
(2,2-Dimethyl-propoxy)-benzene; 
Neopentyl phenyl ether; 
Neopentyloxybenzol 
III/35e 2.2.2:2988 
35006 C11H16O 
164.24 
81634-59-5 
Ph 
O C2H5 
(1,1-Dimethyl-propoxy)-benzene; 
tert-pentyl-phenyl ether 
III/35e 2.2.2:2990 
35007 C11H16O 
164.24 
1-tert-Butyl-2-methoxy-benzene; 
2-tert-Butyl-anisole 
III/35e 2.2.2:2991 
2944-48-1 
O 
CH3 
35008 C11H16O 
164.24 
2944-51-6 
CH3 
C2H5 1,3-Diethyl-2-methoxy-benzene; 
2,6-Diethyl-anisole 
III/35e 2.2.2:2993 
O 
C2H5 
35009 C11H16O 
164.24 
5396-38-3 
O 
H3C 1-tert-Butyl-4-methoxy-benzene; 
p-tert-Butylanisole 
III/35e 2.2.2:2992 
35010 C11H16O 
164.24 
16158-52-4 Ph 
O C2H5 
C2H5 (1-Ethyl-propoxy)-benzene III/35e 2.2.2:2987 
35011 C11H16O 
164.24 
Ph 
O 
C2H5 
CH3 ((R,S)-2-Methyl-butoxy)-benzene III/35e 2.2.2:2985 
+ 
CH3 
Ph 
O 
C2H5 
35012 C11H16O 
164.24 
14789-87-8 
Ph 
O C3H7 
CH3 
Ph 
O C3H7 
CH3 
+ 
((R,S)-1-Methyl-butoxy)-benzene III/35e 2.2.2:2986 
35013 C11H16O 
164.24 Ph 
O 
CH3 
CH3 
CH3 
Ph 
O 
CH3 
CH3 
CH3 
+ 
((R,S)-1,2-Dimethyl-propoxy)-benzene III/35e 2.2.2:2989 
35014 C11H16OP 
195.22 
Ph 
P(+) 
O Trimethyl-(2-oxo-2-phenyl-ethyl)-
phosphonium 
III/35e 2.2.1:1376 
35015 C11H16OS 
196.31 
(2-Methyl-propane-2-sulfinylmethyl)benzene 
III/35e 2.2.5:4285 
SPh 
O 
35016 C11H16OSi 
192.33 
Ph 
Si 
O 1-Phenyl-2-trimethylsilanyl-ethanone III/35e 2.2.1:1374 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
35017 C11H16OSi 
192.33 
O p-Tolyl-trimethylsilanyl-methanone III/35e 2.2.1:1375 
Si 
H3C 
35018 C11H16O2 
180.24 
CH3H3C 1-Isopropyl-2,3-dimethoxy-benzene III/35e 2.2.2:2994 
O 
CH3 
O 
CH3 
35019 C11H16O2 
180.24 
4537-09-1 O 
CH3 
CH3 
CH3O 
H3C 
H3C 
1,4-Dimethoxy-2,3,5-trimethyl-benzene III/35e 2.2.2:2995 
35020 C11H16O2 
180.24 
(1R*,2S*,4R*)-4,7,7-Trimethyl-3-oxo-
bicyclo[2.2.1]heptane-2-carbaldehyde 
III/35e 2.2.1:1377 
+ 
O 
O 
O 
O 
35021 C11H16O2S 
212.31 
C4H9 
SPh 
O O (Butane-1-sulfonylmethyl)-benzene III/35e 2.2.5:4286 
35022 C11H16O2S 
212.31 
H3C 
CH3 
C2H5O 
S 
CH3 
O 2,4,6-Trimethyl-benzenesulfinic acid ethyl 
ester 
III/35e 2.2.5:4287 
35023 C11H16O2S 
212.31 
O 
C2H5S 
CH3 
O 
2,6,6-Trimethyl-6H-pyran-3-carbothioic acid 
S-ethyl ester 
III/35c2 2.2:1234 
35024 C11H16O2Si 
208.33 Ph 
O 
Si 
O Trimethylsilyl phenylacetate III/35e 2.2.1:1378 
35025 C11H16O2Si 
208.33 
O (4-Methoxy-phenyl)-trimethylsilanylmethanone 
III/35e 2.2.1:1379 
Si 
O 
H3C 
35026 C11H16O3 
196.24 
O 
HO 
O 
CH3 
O 
HO 
+ 
O 
CH3 
(1S*,3S*,4R*)-3-Acetyl-1-hydroxy-7,7-
dimethyl-bicyclo[2.2.1]heptan-2-one 
III/35e 2.2.1:1512 
35027 C11H16O4 
212.24 
O 
H5C2 
CH3 
O 
CH3 
H5C2 OO 4,5-Diethyl-2-methoxy-furan-3-carboxylic 
acid methyl ester 
III/35c2 2.2:1235 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
35028 C11H16O4S 
244.31 
O Methanesulfonic acid -4-oxo-adamantan-2-
yl ester 
III/35e 2.2.5:4288 
O 
S 
OO 
35029 C11H16O5S 
260.31 
CH3 
OO 
C2H5 
OO 
(S)-3-Ethoxycarbonylmethyl-2-methyl-4-
oxo-tetrahydro-thiophene-3-carboxylic acid 
methyl ester 
III/35c2 2.2:1236 
O 
CH3S 
35030 C11H16Se 
227.21 Ph 
Se 
C5H11 
Pentylselanyl-benzene III/35c4 2.2:1186 
35031 C11H16Se 
227.21 
Ph 
Se CH3 
CH3 (3-Methyl-butylselanyl)-benzene III/35c4 2.2:1188 
35032 C11H16Se 
227.21 
Ph 
Se 
(2,2-Dimethyl-propylselanyl)-benzene III/35c4 2.2:1189 
35033 C11H16Se 
227.21 
Ph 
Se C2H5 
C2H5 (1-Ethyl-propylselanyl)-benzene III/35c4 2.2:1192 
35034 C11H16Se 
227.21 
Ph 
Se 
C2H5 
CH3 ((R,S)-2-Methyl-butylselanyl)-benzene III/35c4 2.2:1187 
+ 
CH3 
Ph 
Se 
C2H5 
35035 C11H16Se 
227.21 Ph 
Se C3H7 
CH3 
Ph 
Se C3H7 
CH3 
+ 
((R,S)-1-Methyl-butylselanyl)-benzene III/35c4 2.2:1190 
35036 C11H16Se 
227.21 Ph 
Se 
CH3 
CH3 
CH3 
Ph 
Se 
CH3 
CH3 
CH3 
+ 
((R,S)-1,2-Dimethyl-propylselanyl)-benzene III/35c4 2.2:1191 
35037 C11H17BF4O 
252.06 
B 
O F 
F 
F F 9-(2,2,3,3-Tetrafluoro-propoxy)-9-bora-
bicyclo[3.3.1]nonane 
III/35e 2.2.2:2996 
35038 C11H17BLi2O2 
205.94 O 
B(-) Li(+) 
Li(+) O(-) 
C11H17BO2 
2-Li salt III/35a 2.2:982 
35039 C11H17BN2 
188.08 N 
C11H17BN2 III/35a 2.2:983 
BH2 
NC 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
35040 C11H17BO2 
192.06 O 
B(-) O(-) 
C11H17BO2 
2-III/35a 2.2:982 
35041 C11H17BZr 
251.28 (-) 
(-) 
Zr(3+)H4B(-) 
H3C 
C11H17BZr III/35a 2.2:984 
35042 C11H17FN2O 
212.26 
O (3-Fluoro-adamantan-1-yl)-urea III/35b 2.2:1162 
NH NH2 
F 
35043 C11H17FO3 
216.25 
O O 
O C2H5 
(R,S)-3-Cyclohexyl-2-fluoro-3-oxo-propionic 
acid ethyl ester 
III/35b 2.2:1163 
F 
+ 
O O 
O C2H5 
F 
35044 C11H17FO4 
232.25 O 
(2Z,4Z)-3-Fluoro-4-(2-methoxy-
ethoxymethoxy)-hepta-2,4-dienal 
III/35b 2.2:1164 
O O CH3 
F O 
C2H5 
35045 C11H17N 
163.26 
13021-15-3 
H3C 
CH3 
N 
CH3 
CH3 
CH3 
Benzenamine, N,N,2,4,6-pentamethyl-; 
Dimethyl-(2,4,6-trimethyl-phenyl)-amine 
III/35b 3.2:1368 
35046 C11H17N 
163.26 
CH3 
H3C 
6-Isopropyl-2,3,4-trimethyl-pyridine III/35c2 2.2:1237 
CH3H3C N 
CH3 
35047 C11H17NO 
179.26 
CH3 (S)-2,4,7-Trimethyl-2,4a,5,6,7,7a-
hexahydro-[2]pyrindin-1-one 
III/35e 2.2.1:1380 
N 
H3C 
O 
CH3 
35048 C11H17NO 
179.26 O 
N 3-tert-Butyl-4,5,6,7-tetrahydro-
benzo[c]isoxazole 
III/35c2 2.2:1238 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
35049 C11H17NOS 
211.32 
O 
C2H5N 
S 
4-Methyl-benzenesulfinic acid diethylamide III/35e 2.2.5:4289 
C2H5 
H3C 
35050 C11H17NO2 
195.26 
75039-59-7 N 
CH3 
CH3O 
O 2-Dimethylaminomethylene-5,5-dimethyl-
cyclohexane-1,3-dione 
III/35e 2.2.1:1382 
35051 C11H17NO2 
195.26 
O 3-Piperidin-1-ylmethylene-pentane-2,4-
dione 
III/35e 2.2.1:1381 
NH3C 
OH3C 
35052 C11H17NO2 
195.26 
OHOH 
H3C CH3N 1-[6-(2-Hydroxy-propyl)-pyridin-2-yl]-
propan-2-ol 
III/35c2 2.2:1239 
35053 C11H17NO2S 
227.32 
NHPh 
O 
S 
O 
C3H7 
CH3 N-((R,S)-1-Methyl-butyl)benzenesulfonamide 
III/35b 3.2:1369 
+ 
O O CH3 
NHPh 
S 
C3H7 
35054 C11H17NO2Si 
223.34 O O 
Ph 
N 
SiH 
C11H17NO2Si III/35b 3.2:1370 
35055 C11H17NO3 
211.26 H5C2 
O 
C2H5 
ON 2,6-Diethoxy-3-methoxymethyl-pyridine III/35c2 2.2:1240 
O 
CH3 
35056 C11H17NO4 
227.26 
COOH 5,6-Dihydro-2H-pyridine-1,3-dicarboxylic 
acid 1-isobutyl ester 
III/35c2 2.2:1241 
CH3 
ON 
CH3 
O 
35057 C11H17NO4S 
259.32 
O 
C2H5O 
NH 
S 
2-[1,3]Thiazinan-2-ylidene-malonic acid 
diethyl ester 
III/35c2 2.2:1242 
O O 
C2H5 
35058 C11H17NO5 
243.26 
O 
O 
H5C2 
O 
H5C2 
O 
O(-) 
CH3N(+) 
5-Methyl-1-oxy-3,4-dihydro-pyrrole-2,2-
dicarboxylic acid diethyl ester 
III/35c2 2.2:1243 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
35059 C11H17NS2 
227.39 CH3 
CH3S 
CH3 
H3C S N 
2,6-Bis-isopropylsulfanyl-pyridine III/35c2 2.2:1244 
35060 C11H17N2O4P 
272.24 
N(-) 
N(+) CH3O 
P 
[Diazo-(2,4,6-trimethyl-4H-pyran-4-yl)methyl]-
phosphonic acid dimethyl ester 
III/35c2 2.2:1245 
O 
O 
CH3 
CH3H3C O 
35061 C11H17N3O 
207.27 
NH NH 1-(2-Amino-phenyl)-3-tert-butyl-urea III/35b 3.2:1371 
O 
NH2 
35062 C11H17N4P 
236.25 N 
C11H17N4P III/35a 3.2:992 
N 
P 
NN 
H3C CH3 
CH3 CH3 
35063 C11H17O2P 
212.22 
PH 
O 
O 
CH3 
H3C 
CH3 
CH3 (2,5-Dimethyl-phenyl)-phosphinic acid 
isopropyl ester 
III/35c4 2.2:1193 
35064 C11H17O3P 
228.22 
1080-32-6 
Ph P 
O O C2H5 
O 
C2H5 
Benzyl-phosphonic acid diethyl ester; 
diethyl benzylphosphonate; 
Phenylmethanphosphonsurediethylester; 
III/35e 2.2.4:3811 
Phosphonic acid, (phenylmethyl)-, diethyl 
ester 
35065 C11H17O3P 
228.22 
15286-11-0 
P 
O O C2H5 
O 
C2H5 
o-Tolyl-phosphonic acid diethyl ester III/35e 2.2.4:3812 
CH3 
35066 C11H17O3PS 
260.29 
H5C2 
O 
P 
O S 
Ph 
O 
C2H5 
Phenylsulfanylmethyl-phosphonic acid 
diethyl ester 
III/35c4 2.2:1194 
35067 C11H17O3Re 
383.46 
(-) Re(+) 
O 
O 
C11H17O3Re III/35e 2.2.7:4847 
O 
H5C2 
35068 C11H17O4P 
244.22 OH5C2 O 
(2-Hydroxy-benzyl)-phosphonic acid diethyl 
ester; 
III/35a 3.2:994 
1663-55-4 H5C2 
O 
P (a-Hydroxy-benzyl)-phosphonic acid diethyl 
ester 
OH 
35069 C11H17O4P 
244.22 
3762-33-2 O P 
O 
O 
C2H5 
O C2H5H3C 
Diethyl 4-methoxyphenylphosphonate; 
(4-Methoxy-phenyl)-phosphonic acid diethyl 
ester 
III/35e 2.2.4:3814 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
35070 C11H17O4P 
244.22 O 
PH 
O 
O 
H3C 
Ph 
HO 
H3C 
HO 
+ 
O 
PH 
O 
O Ph 
(R,S)-2-(2-Phenyl-2.5-
[1,3,2]dioxaphospholan-2-yloxy)-propan-1-
ol 
III/35a 3.2:993 
35071 C11H17O4PS 
276.29 H5C2 
O 
P S 
Ph 
OOH5C2 
O Benzenesulfinylmethyl-phosphonic acid 
diethyl ester 
III/35c4 2.2:1195 
35072 C11H17O4ReSi 
427.54 
Re 
O O CH3 C11H17O4ReSi III/35e 2.2.7:4848 
O 
Si 
OH3C 
35073 C11H17O5PS 
292.29 H5C2 
O 
P S 
Ph 
OOH5C2 O O Benzenesulfonylmethyl-phosphonic acid 
diethyl ester 
III/35c4 2.2:1196 
35074 C11H17PSe 
259.19 
Ph 
P 
Se C11H17PSe III/35a 3.2:995 
35075 C11H18BF2N 
213.07 
N 
B 
FF 
H13C6 
C11H18BF2N III/35a 2.2:985 
35076 C11H18BN 
175.08 
CH3 
H3C 
BH3 
N 
Ph 
C11H18BN III/35c4 2.2:1197 
35077 C11H18ClO2P 
248.69 
C11H18ClO2P III/35e 2.2.4:3815 
O 
P CH3 
Cl O 
35078 C11H18Cl2O3Si 
297.25 
O 
Si 
(E)-2-(2,2-Dichloro-vinyl)-3-
trimethylsilanyloxy-but-2-enoic acid ethyl 
ester 
III/35e 2.2.2:2997 
Cl 
CH3 
Cl 
O O 
C2H5 
35079 C11H18F2O 
204.26 
HOCH3 (R,S)-3,3-Difluoro-4,8-dimethyl-nona-1,7-
dien-4-ol 
III/35b 2.2:1165 
H3C CH2 
F F 
+ 
HOCH3 
H3C CH2 
F F 
35080 C11H18F2O2 
220.26 
F F 
O 
2,2-Difluoro-non-8-enoic acid ethyl ester III/35b 2.2:1166 
H2C C2H5 
O 
35081 C11H18F2O5 
268.25 H5C2 O 
O FF 
O 
CH2 
O 
O CH3 
3,3-Difluoro-4-(2-methoxy-ethoxymethoxy)-
pent-4-enoic acid ethyl ester 
III/35b 2.2:1167 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
35082 C11H18MnO4P 
300.17 C 
CH3 O 
C 
O C11H18MnO4P III/35e 2.2.7:4677 
Mn 
C 
O 
P 
C 
C2H5 
H5C2 C2H5 
O 
35083 C11H18NO3P 
243.24 
CH3 
CH3 
O O 
CH3 
O 
PN 
Pyridin-4-yl-phosphonic acid diisopropyl 
ester 
III/35c2 2.2:1246 
CH3 
35084 C11H18NO3P 
243.24 C2H5O 
C2H5 
O 
(2,6-Dimethyl-pyridin-4-yl)-phosphonic acid 
diethyl ester 
III/35c2 2.2:1247 
OP 
CH3H3C N 
35085 C11H18N2 
178.27 N 
CH3 (4-Dimethylaminomethyl-phenyl)-dimethyl-
amine 
III/35b 3.2:1372 
H3C 
N 
CH3 
CH3 
35086 C11H18N2OS 
226.34 N 
O N 
4-(4,4,6-Trimethyl-4H-[1,3]thiazin-2-yl)morpholine 
III/35c2 2.2:1248 
S 
CH3 
35087 C11H18N2O2 
210.27 
O 3-(4-Methyl-piperazin-1-ylmethylene)-
pentane-2,4-dione 
III/35e 2.2.1:1383 
NH3C 
N 
OH3C CH3 
35088 C11H18N2O2S 
242.34 
CH3 
O 
C2H5 
O 
S 
NH 
N 
H9C4 
2-Butyl-5-methylsulfanyl-1H-imidazole-4-
carboxylic acid ethyl ester 
III/35c2 2.2:1249 
35089 C11H18N2O3 
226.27 
O C2H5 
OO 
(4,5,6,7,8,8a-Hexahydro-3aH-
cycloheptaoxazol-2-yl)-carbamic acid ethyl 
III/35c2 2.2:1250 
ester 
NH 
N 
35090 C11H18N6S2 
298.43 
C11H18N6S2 III/35c2 2.2:1251 
N N 
N N 
N N 
C2H5 
SH5C2 
S 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
35091 C11H18OPt 
361.34 (-) 
Pt(+) 
O 
C11H18OPt III/35c4 2.2:1198 
H5C2 C2H5CH3 
35092 C11H18OS 
198.32 
CH3 CH3 2,2-Dimethyl-1-((R,S)-4-methyl-5,6-dihydro-
2H-thiopyran-2-yl)-propan-1-one 
III/35c2 2.2:1252 
+ 
S S 
O O 
35093 C11H18O2 
182.26 
O HO 1-(5,6-Dihydro-4H-pyran-2-yl)-cyclohexanol III/35c2 2.2:1253 
35094 C11H18O2 
182.26 
68347-39-7 
OO 3,3,7,7-Tetramethyl-cycloheptane-1,2-
dione 
III/35e 2.2.1:1384 
35095 C11H19B 
162.08 
C11H19B III/35a 2.2:986 
B 
CH3 
35096 C11H19BN2O4 
254.09 
O 
O 
B 
O 
N 
CH3 
CH3OH2C 
C11H19BN2O4 III/35a 2.2:987 
N 
H3C CH3 
35097 C11H19BO 
178.08 B 
H3C O C11H19BO III/35a 2.2:988 
35098 C11H19BO2 
194.08 
H2C 
B 
O 
O 
C11H19BO2 III/35a 2.2:989 
35099 C11H19BSi 
190.16 Si 
C11H19BSi III/35a 2.2:990 
B 
CH3 
CH3 
35100 C11H19BrO2Si 
291.26 
See appendix No: 35100 ((R,S)-5-Bromo-3-methoxymethoxy-hex-5-
en-1-ynyl)-trimethyl-silane 
III/35c4 2.2:1199 
35101 C11H19FO 
186.27 H17C8 
F 
O 
(Z)-2-Fluoro-undec-2-enal III/35b 2.2:1169 
35102 C11H19FO 
186.27 O 
CH3 
C2H5 
F 
O 
CH3 
C2H5 
F 
+ 
(R,S)-2-Ethyl-2-fluoro-1-methoxy-
bicyclo[2.2.2]octane 
III/35b 2.2:1168 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
35103 C11H19FO2 
202.27 
O 
O F 
CH3 
H3C 
2-(1-Fluoro-2-methylIII/35b 2.2:1170 
35104 C11H19FO3 
218.26 
OH O 
O 
C2H5 
F lIII/35b 2.2:1171 
35105 C11H19FO4 
234.26 
H3C O 
F 
O 
O 
C2H5 
O 
CH3 
H3C O 
F 
O 
O 
C2H5 
O 
CH3 
+ 
dimethylIII/35b 2.2:1172 
35106 C11H19FO4 
234.26 
O 
F 
O 
C2H5 
O O CH3 
O 
F 
O 
C2H5 
O O CH3 
+ 
III/35b 2.2:1173 
35107 C11H19F2NO4 
267.27 H3C 
CH3 
O F F 
O 
CH2 
O 
O 
CH3N 
)-
pent-4-enoic acid dimethylamide 
III/35b 2.2:1174 
35108 C11H19F2O3P 
268.24 
F F 
P 
O 
C2H5 
O O C2H5 
l)III/
35b 2.2:1175 
35109 C11H19F4NO2 
273.27 
O 
O 
N 
F 
F3C 
C2H5 
H5C2 
H5C2 
l[1,3]dioxolan-2-yl]-amine 
III/35b 2.2:1179 
35110 C11H19F4NO2 
273.27 
O 
O 
N 
F 
F3C 
C2H5 
H5C2 
H3C 
H3C [1,3]dioxolan-2-ylIII/35b 2.2:1180; 
III/35c2 2.2:1254 
35111 C11H19F4NO2 
273.27 
O 
O 
H3C 
F 
CF3 
N C2H5 
C2H5 
l]-amine 
III/35b 2.2:1178 
35112 C11H19IN3P 
351.17 
N 
P(+) 
N 
CH3 
CH3 
NH 
Ph 
I(-) [1,3,2]diazaphospholidin-2-ium iodide 
III/35b 3.2:1373 
-propenyl)-4,4,5,5-
tetramethyl-[1,3]dioxolane 
3-Cyclohexy-2-fluoro-3-hydroxy-propionic 
acid ethyl ester 
(Z)-(R,S)-4-Fluoro-2,5-dimethoxy-3,3-
-pent-4-enoic acid ethyl ester 
(Z)-(R,S)-3-Fluoro-4-(2-methoxy-
ethoxymethoxy)-hept-4-enal 
3,3-Difluoro-4-(2-methoxy-ethoxymethoxy(Cyclohex-1-enyl-difluoro-methyphosphonic acid diethyl ester 
Diethyl-[4-ethy-2-(1,2,2,2-tetrafluoro-ethyl)-
[4,5-Dimethyl-2-(1,2,2,2-tetrafluoro-ethyl)-
]-diethyl-amine 
Diethyl-[4-methyl-2-(1,2,2,2-tetrafluoro-
ethyl)-[1,3]dioxan-2-y1,2,3-Trimethyl-2-phenylamino-
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
35113 C11H19N 
165.28 
N 
H3C 1-(2-Methyl-cyclohex-1-enyl)-pyrrolidine III/35b 3.2:1374 
35114 C11H19NO 
181.28 
(E/Z) 
O 
NH 
2-[1-tert-Butylamino-methylidene]-
cyclohexanone 
III/35e 2.2.1:1386 
35115 C11H19NO 
181.28 
(E/Z) 
CH3 
2-[1-Dimethylamino-methylidene]-
cyclooctanone 
III/35e 2.2.1:1387 
N 
CH3 
O 
35116 C11H19NO 
181.28 
(E/Z) 
N 
O 
CH3 
4-Azocan-1-yl-but-3-en-2-one III/35e 2.2.1:1385 
35117 C11H19NOSi 
209.36 
Si 
O 
N 
H3C 
CH3 
Ph 
[(Dimethyl-phenoxy-silanyl)-methyl]-
dimethyl-amine 
III/35c4 2.2:1200 
35118 C11H19NO2 
197.27 
CH3 
O 
N 
3-Hexyl-1,3-dimethyl-azetidine-2,4-dione III/35c2 2.2:1255 
H13C6 
O 
35119 C11H19NO2 
197.27 
N 
H3C 
O 
O C11H19NO2 III/35b 3.2:1375 
35120 C11H19NO4 
229.27 
CH3O 
O 
N 
CH3O 
O 
N+ 
(R,S)-1-Ethoxycarbonylmethyl-piperidine-2-
carboxylic acid methyl ester 
III/35c2 2.2:1256 
O O 
O C2H5 O C2H5 
35121 C11H19NSi 
193.36 
CH3 
Si 
(2,6-Dimethyl-phenyl)-trimethylsilanylamine 
III/35b 3.2:1376 
CH3 
NH 
35122 C11H19N3O3 
241.29 OCH3 
CH3O 1-Acetyl-pyrrolidine-2-carboxylic acid (1methylcarbamoyl-
ethyl)-amide 
III/35e 2.2.1:1388 
NH N 
H3C NH 
O 
35123 C11H19O4P 
246.24 
O 
O 
O 
(2-Oxo-5-vinyl-cyclopentyl)-phosphonic 
acid diethyl ester 
III/35a 3.2:997 
P C2H5 
O C2H5 
CH2 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
35124 C11H19O4P 
246.24 
O 
CH3P 
O 
O 
H5C2 
OH5C2 (3-Methyl-2-oxo-cyclohex-3-enyl)-
phosphonic acid diethyl ester 
III/35a 3.2:996 
35125 C11H20B2N2S2Si 
294.13 S SiPh 
C11H20B2N2S2Si III/35a 2.2:991 
N N 
B B 
S CH3H3C 
35126 C11H20ClO2P 
250.7 
P 
O 
O 
Cl 
P 
O 
O 
Cl 
+ 
(R,S)-3,5-Di-tert-butyl-2-chloro-5H-
[1,2]oxaphosphole 2-oxide 
III/35a 3.2:998 
35127 C11H20CoN5O4 
345.24 
See appendix No: 35127 C11H20CoN5O4 III/35c4 2.2:1201 
35128 C11H20CoN5O4 
345.24 
See appendix No: 35128 C11H20CoN5O4 III/35c4 2.2:1202 
35129 C11H20F2IO4P 
412.15 
133827-44-8 
See appendix No: 35129 Diethyl 1,1-difluoro-3-iodo-6-
oxoheptylphosphonate; 
((R,S)-1,1-Difluoro-3-iodo-6-oxo-heptyl)-
III/35a 3.2:1000; 
III/35b 2.2:1182 
phosphonic acid diethyl ester 
35130 C11H20F2IO4P 
412.15 
133827-43-7 
I F F 
P 
O 
O 
C2H5 
O C2H5 
O 
Diethyl 1,1-difluoro-3-iodo-6,7-
epoxyheptylphosphonate; 
(1,1-Difluoro-3-iodo-5-oxiranyl-pentyl)phosphonic 
acid diethyl ester 
III/35a 3.2:999; 
III/35b 2.2:1181 
35131 C11H20F2OSi 
234.36 
F F (1-Cyclohexyl-2,2-difluoro-vinyloxy)-
trimethyl-silane 
III/35b 2.2:1183 
Si 
O 
35132 C11H20F2O2 
222.27 
H13C6 
O CH3 2,2-Difluoro-octanoic acid isopropyl ester III/35b 2.2:1184 
O CH3 
F F 
35133 C11H20F2O2 
222.27 H15C7 
O 
C2H5 
2,2-Difluoro-nonanoic acid ethyl ester III/35b 2.2:1185 
O 
F F 
35134 C11H20F2O4 
254.27 
FF 3-Ethyl-1,1-difluoro-2-(2-methoxy-
ethoxymethoxy)-pent-1-en-3-ol 
III/35b 2.2:1187 
H5C2 O 
O O CH3 
H5C2 OH 
35135 C11H20F2O4 
254.27 
FF 
O O O 
CH3 
OH (R,S)-1,1-Difluoro-2-(2-methoxy-
ethoxymethoxy)-4,4-dimethyl-pent-1-en-3-
ol 
III/35b 2.2:1186 
+ 
OH 
O O O 
CH3 
FF 
35136 C11H20F6O6P2 
424.21 
F F F F 
OO 
[3-(Diethoxy-phosphoryl)-1,1,2,2,3,3-
hexafluoro-propyl]-phosphonic acid diethyl 
III/35b 2.2:1188 
P P C2H5H5C2 ester 
F F OOOH5C2 O C2H5 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
35137 C11H20NPSSn 
348.01 
Ph N 
Sn 
P S 
C11H20NPSSn III/35b 3.2:1377 
35138 C11H20NPSn 
315.95 
Ph 
CH3 
CH3 
N 
Sn P 
C11H20NPSn III/35b 3.2:1378 
35139 C11H20N2 
180.29 
CH3 
NN 
1',2',2'-Trimethyl-2,3,4,5,2',5'-hexahydro-
1'H-[1,3']bipyrrolyl 
III/35c2 2.2:1257 
35140 C11H20N2O 
196.29 
CH3 
CH3 
O 
N 
N 
1-((S)-4-Isopropyl-4,5-dihydro-oxazol-2-yl)-
piperidine 
III/35c2 2.2:1258 
35141 C11H20O 
168.28 
O 
2,2-Di-tert-butyl-cyclopropanone III/35e 2.2.1:1389 
35142 C11H20O 
168.28 OH + OH 
(1R*,2R*,4R*)-1,2,7,7-Tetramethyl-
bicyclo[2.2.1]heptan-2-ol 
III/35e 2.2.2:2998 
35143 C11H20OS 
200.34 
O 
H3C 
H3C 
S 
C11H20OS III/35e 2.2.5:4291 
35144 C11H20OS 
200.34 
O 
H3C 
H3C 
S 
(R)-2-tert-Butyl-4,5-dimethyl-3,6-dihydro-
2H-thiopyran 1-oxide 
III/35e 2.2.5:4290 
35145 C11H20O2 
184.28 
O O 
2,2,6,6-Tetramethyl-heptane-3,5-dione III/35e 2.2.1:1390 
35146 C11H20O2 
184.28 
104-67-6 
OO C7H15 
OO C7H15 
+ 
2(3H)-Furanone, 5-heptyldihydro-; 
(R,S)-5-Heptyl-dihydro-furan-2-one; 
()-.-Undecalactone; 
Undecanoic acid, 4-hydroxy-, .-lactone 
III/35e 2.2.1:1391 
35147 C11H20O2 
184.28 
OO C6H13 OO C6H13 
+ 
(R,S)-6-Hexyl-tetrahydro-pyran-2-one III/35e 2.2.1:1392 
35148 C11H20O3 
200.28 O 
(1R,11S)-12,13,14-Trioxa-
bicyclo[9.2.1]tetradecane 
III/35e 2.2.2:2999 
O 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
35149 C11H20O3 
200.28 O 
(1S,11S)-12,13,14-Trioxa-
bicyclo[9.2.1]tetradecane 
III/35e 2.2.2:3000 
O 
O 
35150 C11H20O4 
216.27 
O CH3 
O 
H3C 
O 
O 
C6H13 Acetic acid 1-acetoxy-heptyl ester III/35e 2.2.1:1393 
35151 C11H20Pt 
347.36 (-) 
Pt(+) 
H7C3 
CH3 
C2H5 
Cyclopentadienyl-propyl-ethyl-methyl-
platinum 
III/35c4 2.2:1203 
35152 C11H20Pt 
347.36 (-) 
Pt(+) 
H9C4 
CH3 
CH3 
Cyclopentadienyl-butyl-dimethyl-platinum III/35c4 2.2:1204 
35153 C11H21B 
164.09 B 
H3C 9-Borabicyclo[3.3.1]nonane, 9-(1-
methylethyl)- 
III/35a 2.2:992 
51475-51-5 H3C 
+ 
H3C 
B 
H3C 
35154 C11H21BClF6NP2 
389.49 BH 
Cl 
P(+) 
Ph 
N 
P(-) 
FF 
F F 
F 
F 
C11H21BClNP+ PF6 
-III/35a 2.2:993 
35155 C11H21BClNP 
244.53 BH 
Cl 
P(+) 
Ph 
N 
C11H21BClNP+ III/35a 2.2:993 
35156 C11H21BO 
180.09 B 
O 
CH3 
CH3 9-Isopropoxy-9-bora-bicyclo[3.3.1]nonane III/35e 2.2.2:3001 
35157 C11H21BOSi 
208.18 CH3Si 
O 
4,5-Diethyl-3-isopropenyl-2,2-dimethyl-2,5-
dihydro-[1,2,5]oxasilaborole 
III/35e 2.2.6:4467 
B 
CH2H5C2 
C2H5 
35158 C11H21BS 
196.16 CH3 
C11H21BS III/35a 2.2:994 
B 
S CH3 
35159 C11H21BSeSi 
271.14 
Si 
Se 
B 
H5C2 
H5C2 
H3C 
CH2 
C11H21BSeSi III/35c4 2.4:3372 
35160 C11H21B8MoO3 
383.71 
(CO)3MoMe4B8C4H8 III/35a 2.2:995 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
35161 C11H21FO2S 
236.35 
See appendix No: 35161 (R,S)-Fluoro-heptylsulfanyl-acetic acid ethyl 
ester 
III/35b 2.2:1189 
35162 C11H21F2O3P 
270.25 H9C4 
F F 
P 
O 
C2H5 
O O C2H5 ((E)-1,1-Difluoro-hept-2-enyl)-phosphonic 
acid diethyl ester 
III/35b 2.2:1190 
35163 C11H21F2O4P 
286.25 
P 
F F 
O 
C2H5 
O O C2H5O 
H3C 
(1,1-Difluoro-6-oxo-heptyl)-phosphonic acid 
diethyl ester 
III/35b 2.2:1191 
35164 C11H21F3O 
226.28 
H19C9 
OH 
CF3 H19C9 
OH 
CF3 
+ 
(R,S)-1,1,1-Trifluoro-undecan-2-ol III/35b 2.2:1192 
35165 C11H21F3OS 
258.34 S 
OH (R,S)-1,1,1-Trifluoro-3-octylsulfanyl-propan-
2-ol 
III/35b 2.2:1193 
H17C8 CF3 
+ 
OH 
S 
H17C8 CF3 
35166 C11H21F3O2Si 
270.36 O 
CH3 ((3S,4S)-3-Methoxy-4-trifluoromethyl-
cyclohexyloxy)-trimethyl-silane 
III/35b 2.2:1194 
CF3 
Si 
O 
35167 C11H21N 
167.29 N 
1-Cyclopentyl-azepane III/35b 3.2:1379 
35168 C11H21N 
167.29 
NH 
CH3 
CH3 NH 
CH3 
CH3 
+ 
C11H21N III/35b 3.2:1380 
35169 C11H21N 
167.29 
NH 
CH3 
CH3 NH 
CH3 
CH3 
+ 
C11H21N III/35b 3.2:1381 
35170 C11H21N 
167.29 
NH 
CH3 
CH3 NH 
CH3 
CH3 
+ 
C11H21N III/35b 3.2:1382 
35171 C11H21N 
167.29 
NH 
CH3 
CH3 NH 
CH3 
CH3 
+ 
C11H21N III/35b 3.2:1383 
35172 C11H21N 
167.29 
NH 
CH3 
NH 
CH3 
+ 
C11H21N III/35b 3.2:1384 
35173 C11H21N 
167.29 
C11H21N III/35b 3.2:1385 
+ 
NH NH 
CH3 CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
35174 C11H21N 
167.29 
N 
CH3 
CH3 
+ 
N 
CH3 
CH3 
C11H21N III/35b 3.2:1386 
35175 C11H21N 
167.29 
N 
CH3 
CH3 
+ 
N 
CH3 
CH3 
C11H21N III/35b 3.2:1387 
35176 C11H21N 
167.29 
CH3 CH3 C11H21N III/35b 3.2:1388 
N 
+ 
N 
CH3 CH3 
35177 C11H21N 
167.29 
CH3 CH3 C11H21N III/35b 3.2:1389 
N 
+ 
N 
CH3 CH3 
35178 C11H21N 
167.29 
C11H21N III/35b 3.2:1390 
+ 
N N 
CH3 CH3 
35179 C11H21N 
167.29 
H3C H3C C11H21N III/35b 3.2:1391 
N 
+ 
N 
CH3 CH3 
35180 C11H21N 
167.29 
C11H21N III/35b 3.2:1392 
+ 
N N 
CH3CH3 CH3CH3 
35181 C11H21N 
167.29 
C11H21N III/35b 3.2:1393 
+ 
N N 
CH3CH3 CH3CH3 
35182 C11H21NO 
183.29 
N 
O 1-tert-Butyl-azocan-5-one III/35e 2.2.1:1394 
35183 C11H21NOSn 
301.98 
Sn 
N 
H3C 
CH3 
3-Trimethylstannanyl-
bicyclo[1.1.1]pentane-1-carboxylic acid 
dimethylamide 
III/35c4 2.2:1205 
O 
35184 C11H21O2P 
216.26 
O C11H21O2P III/35a 3.2:1001 
C4H9 
PH O 
35185 C11H21O4P 
248.26 
See appendix No: 35185 ((R,S)-4-Oxo-1-vinyl-pentyl)-phosphonic 
acid diethyl ester 
III/35a 3.2:1003 
35186 C11H21O5P 
264.25 
OH5C2 
CH3 
O 
PH5C2 O 
O 
O 
C2H5 
(E)-4-(Diethoxy-phosphoryl)-2-methyl-but-
2-enoic acid ethyl ester 
III/35a 3.2:1004 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
35187 C11H22BF6N2P 
338.08 
N(+) 
BH2 
N 
C2H5 
H5C2 C2H5 
F 
P(-) 
F 
FF 
F 
F C11H22BN2 
+ PF6 
-III/35a 2.2:998 
35188 C11H22BNO 
195.11 
O N 
H2B C11H22BNO III/35a 2.2:996 
35189 C11H22BNO3 
227.11 
O 
B 
O 
H3C 
O 
N CH3 
C11H22BNO3 III/35a 2.2:997 
35190 C11H22BNSe 
258.07 B 
H5C2 CH3 2-tert-Butyl-4,5-diethyl-3-methyl-2,3-
dihydro-[1,2,3]selenazaborole 
III/35b 3.2:1394 
N 
SeH5C2 
35191 C11H22BN2 
193.12 
N(+) 
BH2 
N 
C2H5 
H5C2 C2H5 
C11H22BN2 
+ III/35a 2.2:998 
35192 C11H22BNaO2 
220.09 H3C B(-) CH3 
CH3 
O 
O 
Na(+) C11H22BO2Na III/35a 2.2:999 
H3C B(-) CH3 
CH3 
O 
O 
Na(+) 
+ 
35193 C11H22BO2 
197.1 H3C B(-)O 
O 
CH3 
CH3 
C11H22BO2 
-III/35a 2.2:999 
H3C B(-)O 
O 
CH3 
CH3 
+ 
35194 C11H22Cl2N2Ru 
354.28 Ru 
Cl 
Cl 
NH2 
C2H5NH2 
C2H5 
C11H22Cl2N2Ru III/35c4 2.2:1206 
35195 C11H22F2IO3P 
398.17 
133827-36-8 
See appendix No: 35195 Diethyl 1,1-difluoro-3-
iodoheptylphosphonate; 
((R,S)-1,1-Difluoro-3-iodo-heptyl)-
III/35a 3.2:1005; 
III/35b 2.2:1195 
phosphonic acid diethyl ester 
35196 C11H22F2OSi 
236.37 
O 
SiF 
F 
C6H13 (1-Difluoromethylene-heptyloxy)-trimethyl-
silane 
III/35b 2.2:1196 
35197 C11H22NO5PS 
311.33 
See appendix No: 35197 (2S*,4aR*,6R*,7R*,8R*,8aR*)-6,7,8-
Trimethoxy-2,3-dimethyl-hexahydro-
III/35a 3.2:1006 
pyrano[2,3-e][1,3,2]oxazaphosphinine 2sulfide 
35198 C11H22NO5PS 
311.33 
See appendix No: 35198 (2R*,4aR*,6R*,7R*,8R*,8aR*)-6,7,8-
Trimethoxy-2,3-dimethyl-hexahydro-
III/35a 3.2:1007 
pyrano[2,3-e][1,3,2]oxazaphosphinine 2sulfide 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
35199 C11H22NO6P 
295.27 
See appendix No: 35199 (2S*,4aR*,6R*,7R*,8R*,8aR*)-6,7,8-
Trimethoxy-2,3-dimethyl-hexahydro-
III/35a 3.2:1008 
pyrano[2,3-e][1,3,2]oxazaphosphinine 2oxide 
35200 C11H22NO6P 
295.27 
See appendix No: 35200 (2R*,4aR*,6R*,7R*,8R*,8aR*)-6,7,8-
Trimethoxy-2,3-dimethyl-hexahydro-
III/35a 3.2:1009 
pyrano[2,3-e][1,3,2]oxazaphosphinine 2oxide 
35201 C11H22N2O2 
214.31 
77432-42-9 
H3C 
H3C 
O 
OHNN 
4-Hydroxy-1-isopropyl-3,3,5,5-tetramethyl-
piperazin-2-one; 
1-Piperazinyloxy, 2,2,6,6-tetramethyl-4-(1-
methylethyl)-3-oxo-
III/35c2 2.2:1259 
35202 C11H22N4S 
242.38 
See appendix No: 35202 5-((R,S)-1-Dimethylamino-ethyl)-
N2 ,N2 ,N4 ,N4-tetramethyl-thiazole-2,4-
diamine 
III/35c2 2.2:1260 
35203 C11H22O 
170.29 
15876-31-0 
O 
CH3 Cyclohexane, 1-(1,1-dimethylethyl)-4methoxy-, 
trans-; 
Ether, 4-tert-butylcyclohexyl methyl, trans-; 
III/35e 2.2.2:3002 
1-tert-Butyl-4-methoxy-cyclohexane; 
trans-4-tert-Butylcyclohexyl methyl ether 
35204 C11H22O 
170.29 
OH 4-tert-Butyl-1-methyl-cyclohexanol III/35e 2.2.2:3003 
+ 
OH 
35205 C11H22O 
170.29 
OH 4-tert-Butyl-1-methyl-cyclohexanol III/35e 2.2.2:3004 
+ 
OH 
35206 C11H22OS 
202.36 
(cis) 
CH3 
S 
1-tert-Butyl-4-methanesulfinyl-cyclohexane III/35e 2.2.5:4292 
O 
+ 
CH3 
S 
O 
35207 C11H22OS 
202.36 
(trans) 
CH3 
S 
C11H22OS III/35e 2.2.5:4293 
O 
+ 
CH3 
S 
O 
35208 C11H22O2S 
218.36 
(cis) 
OS 
O 
1-tert-Butyl-4-methanesulfonyl-cyclohexane III/35e 2.2.5:4294 
+ 
OS 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
35209 C11H22O2S 
218.36 
(trans) 
OS 
O 
C11H22O2S III/35e 2.2.5:4295 
+ 
OS 
O 
35210 C11H22O3S 
234.36 
(trans) 
S 
O 
OO 
Methanesulfonic acid 4-tert-butyl-
cyclohexyl ester 
III/35e 2.2.5:4296 
S 
OO 
+ 
O 
35211 C11H22O3S 
234.36 
(cis) 
S 
O 
OO 
C11H22O3S III/35e 2.2.5:4297 
S 
OO 
+ 
O 
35212 C11H22O7PdS2 
436.82 
153977-47-0 O(-) 
O 
O 
S 
Palladate(1-), bis(methanesulfonato-
O)[(1,4,5-h)-8-methoxy-4-cycloocten-1-yl]-, 
hydrogen, stereoisomer 
III/35c4 2.2:1207 
H(+)Pd(2+) 
CH(-)H3C 
O O(-) 
SO 
O 
35213 C11H22PtSi 
377.46 (-) 
Si 
Pt(+)CH3H3C 
CH3 
C11H22PtSi III/35c4 2.2:1208 
35214 C11H23BN2 
194.12 N N 
C11H23BN2 III/35a 2.2:1000 
B 
CH3 
35215 C11H23BOSi 
210.2 
B O 
Si 
9-Trimethylsilanyloxy-9-bora-
bicyclo[3.3.1]nonane 
III/35e 2.2.6:4468 
35216 C11H23B7Fe 
286.82 
(6-Me3C6H3)Fe-9,10-C2B7H11 III/35a 2.2:1001 
35217 C11H23B11F5N 
383.22 
See appendix No: 35217 [Me4N]+ [12-C6F5-CB11H11]-III/35a 2.2:696 
35218 C11H23F3O6P2 
370.24 
P 
P 
O 
C2H5 
O O C2H5 
OH5C2 
OOH5C2 
CF3 
P 
P 
O 
C2H5 
O O C2H5 
OH5C2 
OOH5C2 
CF3 
+ 
[(R,S)-1-(Diethoxy-phosphorylmethyl)-
2,2,2-trifluoro-ethyl]-phosphonic acid 
diethyl ester 
III/35b 2.2:1197 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
35219 C11H23IO2Si 
342.29 Si 
I 
O O 
CH3 
C3H7 
+ 
C11H23IO2Si III/35c4 2.2:1209 
Si 
I 
O O 
CH3 
C3H7 
35220 C11H23NOS 
217.37 
(E/Z) 
CH3 
tert-Butyl-[2-(2-methyl-propane-2-sulfinyl)-
propenyl]-amine 
III/35e 2.2.5:4298 
S 
NH 
O 
35221 C11H23NSi2Sn 
344.17 
(-) Sn(+) N 
Si 
Si 
C11H23NSi2Sn III/35c4 2.2:1210 
35222 C11H23N2O3P 
262.29 N N P 
O 
O 
CH3 
O CH3 
(4-Cyclopentyl-piperazin-1-yl)-phosphonic 
acid dimethyl ester 
III/35b 3.2:1395 
35223 C11H23O2P 
218.27 
CH3PH 
O Methyl-phosphinic acid 2-isopropyl-5-
methyl-cyclohexyl ester 
III/35a 3.2:1010 
H3C O 
CH3 
CH3 
35224 C11H23O3P 
234.27 P 
O 
C2H5 
O O C2H5 Cycloheptyl-phosphonic acid diethyl ester III/35a 3.2:1002 
35225 C11H24BN 
181.13 
N 
B 
CH3 
CH3 
C11H24BN III/35a 2.2:1002 
35226 C11H24BN 
181.13 BH 
N 
C11H24BN III/35a 2.2:1003 
35227 C11H24BNO2 
213.12 
B 
O 
N 
O 
CH3 
CH3 
C11H24BNO2 III/35a 2.2:1004 
35228 C11H24B2 
177.93 B 
C2H5CH3 
H5C2 C11H24B2 III/35a 2.2:1005 
B 
H3C C2H5 
CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
35229 C11H24B2N2O 
221.94 
N 
B 
OH 
B 
N 
H5C2H5C2 
C2H5C2H5 
C11H24B2N2O III/35a 2.2:1006 
35230 C11H24FO5PSi 
314.36 
See appendix No: 35230 (R,S)-(Diethoxy-phosphoryl)-fluoro-
trimethylsilanyl-acetic acid ethyl ester 
III/35a 3.2:1011 
35231 C11H24F2Si2 
250.48 H5C2 
Si 
F 
F 
C2H5H5C2 Si 
(Z)-1,2-Difluoro-1-triethylsilanyl-2-
trimethylsilanyl-ethene 
III/35b 2.2:1198 
35232 C11H24NOP 
217.29 
O 
H3C CH3 (2,2-Dimethyl-1-oxo-1.5-phosphetan-1-yl)-
diisopropyl-amine 
III/35a 3.2:1012 
N CH3 
P 
CH3 
35233 C11H24O2Si 
216.39 
O 
O 
Si 
C2H5 
H5C2 C2H5 C11H24O2Si III/35e 2.2.1:1395 
35234 C11H25BClN2P 
262.57 
(delocalized system) 
N N(+) 
B(-) 
Cl 
C11H25BClN2P III/35a 2.2:1007 
P 
H3C CH3 
35235 C11H25BO2Si 
228.21 
CH3 C11H25BO2Si III/35e 2.2.2:3005 
O 
C2H5 Si 
CH3 
H3C 
O 
B 
C2H5 
35236 C11H25IN5P 
385.23 N 
P 
N 
N(+) CH3 
N 
C2H5 
H5C2 
N 
C2H5 
H5C2 
I(-) 2,2-Bis-diethylamino-5-methyl-2.5-
[1,3,5,2]triazaphosphinin-5-ium iodide 
III/35a 3.2:1013 
35237 C11H26AsBBr2N2 
431.88 
(delocalized system) 
CH3 Br CH3 
C11H26AsBBr2N2 III/35a 2.2:1008 
B(-) As 
H3C CH3 
H3C N N(+) Br 
35238 C11H26B2Br2N2 
367.77 
(delocalized system) 
CH3 Br CH3 
C11H26B2Br2N2 III/35a 2.2:1009 
B(-) B 
H3C CH3 
H3C N N(+) Br 
35239 C11H26IN2P 
344.22 P(+)N 
H3C 
I(-) 
C11H26IN2P III/35c4 2.2:1211 
H3C N 
H3C CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
35240 C11H26N2Si 
214.42 
NSi 
N 
CH3 1-Methyl-4-(3-trimethylsilanyl-propyl)-
piperazine 
III/35b 3.2:1396 
35241 C11H26OSi2 
230.5 Si O Si 
2-[Dimethyl-((Z)-2-trimethylsilanyl-vinyloxy)-
silanyl]-2-methyl-propane 
III/35c4 2.2:1212 
35242 C11H26OSi2 
230.5 Si O Si 
2-[Dimethyl-((Z)-2-trimethylsilanyloxy-vinyl)-
silanyl]-2-methyl-propane 
III/35c4 2.2:1213 
35243 C11H27AsBN3 
287.08 N 
H3C CH3 C11H27AsBN3 III/35a 2.2:1010 
N 
As 
N 
B 
CH3 
35244 C11H27AsClN 
283.71 H7C3 N 
H3C 
CH3 
C11H27AsClN III/35c4 2.2:1214 
As(+) Cl(-) 
H7C3 C3H7 
35245 C11H27BCl3N2Sb 
Si 
454.35 
Sb Cl 
Cl 
Cl 
B(-) N(+) 
NSi 
C11H27BCl3N2SbSi III/35a 2.2:1011 
35246 C11H27BCl4GeN2 
Si 
440.69 
Ge 
Cl 
B(-) N(+) 
NSi 
Cl 
C11H27BCl4GeN2Si III/35a 2.2:1012 
Cl 
Cl 
35247 C11H27BeBrN2 
276.26 N 
C11H27BeBrN2 III/35c4 2.2:1215 
Be 
N 
Br 
35248 C11H27BeN 
182.35 
Be 
N 
C11H27BeN III/35c4 2.2:1216 
35249 C11H27ClNPSi 
267.85 
C11H27ClNPSi III/35b 3.2:1397 
N 
SiP 
Cl 
35250 C11H27ClP2W 
440.57 CH3P 
CH3 C11H27ClP2W III/35a 3.2:1082 
W 
P 
Cl 
CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
35251 C11H27Cl2NOP2W 
506.03 
C11H27Cl2NOP2W III/35a 3.2:1014 
N 
P 
C OWCl 
P 
Cl 
35252 C11H27LiP4Si 
318.25 
P P 
Si 
C11H27LiP4Si III/35a 3.2:1015 
P P 
Li 
35253 C11H27NOSi2 
245.51 
O 
Si NSi 
1-(1,1,3,3,3-Pentamethyl-
disiloxanylmethyl)-piperidine 
III/35e 2.2.6:4469 
35254 C11H27NO6P2 
331.28 
CH3 C11H27NO6P2 III/35a 3.2:1016 
CH3 O CH3 
CH3H3C 
O P 
O N 
P 
O 
CH3 
OO 
CH3 
H3C 
35255 C11H27PSn 
309.0 
C11H27PSn III/35a 3.2:1017 
P 
Sn 
35256 C11H28BN 
185.16 BH2 N 
H3C CH3 H3C 
+ 
BH2 N 
CH3 
DibBH2 
.NMe3 III/35a 2.2:1013 
35257 C11H28O2P3Re 
471.47 
P 
P 
C 
C 
O 
H 
Re 
P 
C11H28O2P3Re III/35c4 2.2:1217 
O 
35258 C11H29BN2Sn 
318.86 
Sn N 
C2H5 C11H29BN2Sn III/35a 2.2:1014 
B C2H5 
N 
C2H5H5C2 
35259 C11H29NO2Si2 
263.52 
Si 
O 
N 
O 
CH3 
Si 
Methyl-bis-(2-trimethylsilanyloxy-ethyl)amine 
III/35b 3.2:1398 
35260 C11H30O3Si4 
322.7 OSi 
H2C Tris(trimethylsiloxy)vinylsilane III/35e 2.2.6:4470 
Si Si 
O O 
Si 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C11 
35261 C11H32Cl2N2O2Pt 
Si2 
546.54 
Cl 
Cl 
Pt 
O 
O 
NH2 
Si 
Si 
NH2 
C11H32Cl2N2O2PtSi2 III/35c4 2.2:1218 
35262 C11H33ClN2O3Pt 
Si2 
528.09 
Cl 
OH 
Pt 
O 
O 
NH2 
Si 
Si 
NH2 
C11H33ClN2O3PtSi2 III/35c4 2.2:1219 
35263 C11H33NiP3 
316.99 P CH3 
C11H33NiP3 III/35c4 2.2:1220 
PNi 
P 
CH3 
35264 C12ClF12P 
438.54 
F 
F F 
P 
F 
F 
F 
FF 
F 
F 
C12ClF12P III/35a 3.2:1018 
FF 
Cl 
35265 C12Co4O12 
571.85 
See appendix No: 35265 C12Co4O12 III/35e 2.2.7:4579 
35266 C12Cu3Fe3O12 
694.29 
[Cu3Fe3(CO)12]3-III/35e 2.2.7:4634 
35267 C12F10N2O 
378.12 
(E/Z) 
F O(-) N,N'-Bis-pentafluorophenyl-diazene N-
oxide 
III/35e 2.2.3:3614 
N(+)F F 
N F 
FF 
F F F 
F 
35268 C12F11PS 
416.15 
F 
P 
S 
F 
F F 
F 
C12F11PS III/35a 3.2:1019 
FFF F 
FF 
35269 C12F12 
372.11 
FF 
F 
F 
F F 
F F F 
FF 
F 
1,2,3,4,5-Pentafluoro-6-(2,3,3,4,5,6,6-
heptafluoro-cyclohexa-1,4-dienyl)-benzene 
III/35b 2.2:1199 
35270 C12F12O2P 
435.08 F 
F 
F 
F 
F F 
C12F12O2P III/35a 3.2:1020 
FF 
P 
F O O F 
FF 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35271 C12F26S3 
734.28 
F7C3 
F3C CF3 
S 
S 
S 
F3C CF3 
C3F7 C12F26S3 III/35b 2.2:1200 
35272 C12HBFe4O12 
571.32 
[Fe4(CO)12BH]-III/35a 2.2:1015 
35273 C12HBO12Ru4 
752.22 
[HRu4(CO)12B]2-III/35a 2.2:1016 
35274 C12HCo3FeO12 
569.77 
21750-96-9 
See appendix No: 35274 Iron, tricarbonylhydro(tri-m-
carbonylhexacarbonyltricobalt)-, (3Co-
Co)(3Co-Fe) 
III/35e 2.2.7:4580 
35275 C12HF10P 
366.09 
F 
F 
PHF 
F 
F 
F 
F 
F 
F 
F 
Bis-pentafluorophenyl-phosphane III/35a 3.2:1021 
35276 C12H2BFe4O12 
572.33 
[HFe4(CO)12BH]-III/35a 2.2:1017 
35277 C12H2BO12Ru4 
753.23 
[HRu4(CO)12BH]-III/35a 2.2:1018 
35278 C12H2F8N2O 
342.14 
F 
N(+) 
O(-) 
F 
F 
N,N'-Bis-(2,3,5,6-tetrafluoro-phenyl)-
diazene N-oxide 
III/35e 2.2.3:3615 
N F 
F 
F 
F 
F 
35279 C12H3BFe4O12 
573.34 
HFe4(CO)12BH2 III/35a 2.2:1019 
35280 C12H3BO12Ru4 
754.24 
HRu4(CO)12BH2 III/35a 2.2:1020 
35281 C12H4F15OP 
480.11 F7C3 
F 1-(Bis-heptafluoropropyl-phosphinoyl)-4-
fluoro-benzene 
III/35a 3.2:1022 
P 
OF7C3 
35282 C12H5BrO3S 
309.13 
O 
O 
Br 
OS 
3-Benzo[b]thiophen-2-yl-4-bromo-furan-2,5-
dione 
III/35c2 2.2:1261 
35283 C12H5F3NO9Os3P 
965.83 
See appendix No: 35283 C12H5F3NO9Os3P III/35c4 2.2:1221 
35284 C12H5F6PS 
326.2 P 
S F F 
F 
C12H5F6PS III/35a 3.2:1023 
Ph 
FF 
F 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35285 C12H5F12N 
391.16 
CF3 
CF3CF3 
CF3 2,3,3a,4-Tetrakis-trifluoromethyl-3a,7a-
dihydro-3H-indole 
III/35c2 2.2:1262 
N 
35286 C12H6ClN5 
255.66 Cl 
NNH 8-(4-Chloro-phenyl)-9H-purine-6-
carbonitrile 
III/35c2 2.2:1263 
NN 
CN 
35287 C12H6Co2O10 
428.04 
Co 
C 
C 
C 
O 
O 
Co 
C 
C 
O 
C 
O 
O 
O 
O 
H3C 
O 
CH3 
C12H6Co2O10 III/35e 2.2.7:4581 
O O 
35288 
380.16 
C12H6CrF6O4 
Cr 
CF3 
CO O 
C12H6CrF6O4 III/35c4 2.2:1222 
C 
OC CF3 
O 
35289 C12H6CrF6O4 
380.16 
Cr 
F3C 
CO O 
C12H6CrF6O4 III/35c4 2.2:1223 
C 
OC CF3 
O 
35290 
380.16 
C12H6CrF6O4 
Cr 
F3C O 
CO 
CF3 
C12H6CrF6O4 III/35c4 2.2:1224 
OC 
C 
O 
35291 C12H6F4N2 
254.18 F 
F Bis-(2,3-difluoro-phenyl)-diazene III/35b 2.2:1202 
F 
NF 
N 
35292 C12H6F4N2 
254.18 F 
F F Bis-(2,4-difluoro-phenyl)-diazene III/35b 2.2:1203 
N 
N 
F 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35293 C12H6F4N2 
254.18 F 
F Bis-(2,5-difluoro-phenyl)-diazene III/35b 2.2:1204 
N 
N F 
F 
35294 C12H6F4N2 
254.18 
F 
F 
Bis-(3,4-difluoro-phenyl)-diazene III/35b 2.2:1205 
NF 
N 
F 
35295 C12H6F4N2O 
270.18 N(+) 
O(-) 
F 
N,N'-Bis-(2,4-difluoro-phenyl)-diazene N-
oxide 
III/35e 2.2.3:3616 
N 
FF 
F 
35296 C12H6F5P 
276.14 PH 
F 
F 
Pentafluorophenyl-phenyl-phosphane III/35a 3.2:1024 
Ph 
F F 
F 
35297 C12H6F6O 
280.17 
F 
F 
F3C 
O 
2,2,6-Trifluoro-4-phenyl-5-trifluoromethyl-
2H-pyran 
III/35c2 2.2:1264 
Ph 
F 
35298 C12H6F7NO2 
329.17 
F 
O 
CF3 
O 
N 
CF3 2-(4-Fluoro-phenyl)-5-(2,2,2-trifluoro-
ethoxy)-4-trifluoromethyl-oxazole 
III/35c2 2.2:1265 
35299 C12H6FeO9W 
533.86 
O 
C 
O 
CFe O 
C 
W 
O 
CH3 
CH2C 
O 
C 
O 
C 
O 
CO 
C 
O 
C12H6FeO9W III/35c4 2.2:1225 
35300 C12H6MnO10Re 
Sn 
670.0 
119662-10-1 Re 
C 
C 
O 
O 
CMn 
O 
O 
C 
O 
C 
C 
O 
C O 
Sn 
O 
CO 
CO 
C 
Manganese, pentacarbonyl[-
(dimethylstannylene)]-
(pentacarbonylrhenium)- 
III/35e 2.2.7:4678, 
4849 
35301 C12H6Mn2O10Sn 
538.74 
15219-87-1 
Mn 
C 
C 
O 
O 
CMn 
O 
O 
C 
O 
C 
C 
O 
C O 
Sn 
O 
CO 
CO 
C 
Decacarbonyl(-
dimethylstannylene)dimanganese; 
Manganese, decacarbonyl[-
(dimethylstannylene)]di-; 
Manganese, 
(dimethylstannylene)bis[pentacarbonyl]- 
III/35e 2.2.7:4679 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35302 C12H6N2S 
210.25 
CN 
N 
S Benzo[4,5]thieno[2,3-b]pyridine-3-
carbonitrile 
III/35c2 2.2:1266 
35303 C12H6O10Re2 
682.58 
CRe OReO 
CC 
O 
C 
C 
O 
O 
C 
O 
C12H6O10Re2 III/35c4 2.2:1226 
O 
C 
O 
CO 
C 
CH3H3C 
O 
35304 C12H6O10Re2Sn 
801.27 
15219-77-9 
Re 
C 
C 
O 
O 
CRe 
O 
O 
C 
O 
C 
C 
O 
C O 
Sn 
O 
CO 
CO 
C 
Decacarbonyl(-
dimethylstannylene)dirhenium; 
Rhenium, decacarbonyl[-
(dimethylstannylene)]di- 
III/35e 2.2.7:4850 
35305 C12H6O10Tc2 
507.98 
CTc OTcO 
CC 
O 
C 
C 
O 
O 
C 
O 
C12H6O10Tc2 III/35c4 2.2:1227 
O 
C 
O 
CO 
C 
CH3H3C 
O 
35306 C12H7BrO4 
295.09 
Br 4-Bromo-9-methoxy-furo[3,2-g]chromen-7-
one 
III/35e 2.2.1:1397 
OO O 
O 
H3C 
35307 C12H7DO 
169.2 
D 
O 
4-Deutero-dibenzofuran III/35c2 2.2:1267 
35308 C12H7FO 
186.18 
O 
F 
1-Fluoro-dibenzofuran III/35b 2.2:1206 
35309 C12H7F3N2OS 
284.26 
N 
N 
S 
CH3 
O 
CF3 
2,2,2-Trifluoro-1-(2-methyl-
benzo[d]pyrazolo[5,1-b]thiazol-3-yl)-
ethanone 
III/35b 2.2:1207 
35310 C12H7F3N2O2 
268.19 
F3C NH O N-(5-Cyano-3-methyl-benzofuran-6-yl)-
2,2,2-trifluoro-acetamide 
III/35c2 2.2:1268 
O 
NC 
CH3 
35311 C12H7F3N2S 
268.26 
S 
NF3C 
NC 
CH3 
2-p-Tolyl-4-trifluoromethyl-thiazole-5-
carbonitrile 
III/35b 2.2:1208 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35312 C12H7F9O3S 
402.23 
ee appendix No: 35312STrifluoro-methanesulfonic acid (R,S)-1-
trifluoromethyl-2-(4-trifluoromethyl-phenyl)-
allyl ester 
III/35b 2.2:1209 
35313 C12H7F12O2P 
442.14 
Ph 
P 
OO CF3 
CF3CF3 
F3C 
C12H7F12O2P III/35b 2.2:1210 
35314 C12H7MnO5 
286.12 
C 
C 
OO 
Ph 
Mn 
C 
C12H7MnO5 III/35e 2.2.7:4680 
O 
OO 
C 
C 
35315 C12H7NO3S 
245.25 
N 4-Hydroxy-5-oxo-5H-5.4-phenothiazin-3-
one 
III/35c2 2.2:1269 
OS 
O OH 
35316 C12H7NO5W 
429.03 
W 
C 
O 
O 
C 
O 
C 
O 
C 
C 
Ph 
NH2 
C12H7NO5W III/35e 2.2.7:4956 
O 
35317 C12H7N3O2 
225.2 
O 
N 
2-Pyrimidin-2-yl-isoindole-1,3-dione III/35c2 2.2:1270 
N 
N 
O 
35318 
417.45 
C12H7O3ReS 
(-) 
SRe(+) 
C 
O 
CO 
C 
O 
C12H7O3ReS III/35c4 2.2:1228 
35319 C12H8BBr 
242.91 
B 
C12H8BBr III/35a 2.2:1021 
Br 
35320 C12H8BCl3N2 
297.38 
N N 
B Cl 
Cl 
Cl 
C12H8BCl3N2 III/35a 2.2:1022 
35321 C12H8B2I2 
427.62 B 
I C12H8B2I2 III/35a 2.2:1023 
B 
I 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35322 C12H8B2S4 
302.07 
SS C12H8B2S4 III/35a 2.2:1024 
BB 
SS 
35323 C12H8B4Fe4O12 
610.81 
ee appendix No: 35323SC12H8B4Fe4O12 III/35c4 2.2:1229 
35324 C12H8B4Fe4O12 
610.81 
ee appendix No: 35324SC12H8B4Fe4O12 III/35c4 2.2:1230 
35325 C12H8B4Fe4O12 
610.81 
ee appendix No: 35325SC12H8B4Fe4O12 III/35c4 2.2:1231 
35326 C12H8BrNO6 
342.1 
Br (E)-2-(5-Bromo-furan-2-yl)-3-(5-nitro-furan-
2-yl)-acrylic acid methyl ester 
III/35c2 2.2:1271 
O 
O2N 
O 
CH3 
OO 
35327 C12H8Br2O2S 
376.06 S 
O O Bis-(4-bromo-phenyl)-sulfone III/35e 2.2.5:4299 
2050-48-8 
Br Br 
35328 C12H8ClF3O 
260.64 
Ph 
O Cl 
CF3 
(1E,4Z)-5-Chloro-6,6,6-trifluoro-1-phenyl-
hexa-1,4-dien-3-one 
III/35b 2.2:1211 
35329 C12H8ClNO2S 
265.71 
O 
O 
Cl SN 
8-Chloro-5-oxo-1,2-dihydro-5H-
thiazolo[3,2-a]quinoline-4-carbaldehyde 
III/35c2 2.2:1272 
35330 C12H8ClN3O5 
309.66 
COOH 
Cl N 
N 1-(4-Chloro-phenyl)-5-((Z)-2-nitrooxy-vinyl)-
1H-pyrazole-3-carboxylic acid 
III/35c2 2.2:1564 
O 
NO2 
35331 C12H8Cl2OS 
271.16 
3085-42-5 S 
Cl 
O 
Cl 
Bis(p-chlorophenyl)sulfoxide III/35e 2.2.5:4300 
35332 C12H8FO6PW 
482.0 
W 
C 
O 
C 
OC 
C 
O 
C 
O P 
O 
CH3 
F 
Ph 
C12H8FO6PW III/35c4 2.2:1232 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35333 C12H8F2N2O 
234.2 
(E/Z) 
O(-) N,N'-Bis-(4-fluoro-phenyl)-diazene N-oxide III/35e 2.2.3:3617 
N(+) 
N 
F 
F 
35334 C12H8F3NO3 
271.19 
Ph 
N 
3-Phenyl-5-trifluoromethyl-isoxazole-4-
carboxylic acid methyl ester 
III/35c2 2.2:1273 
OO 
CH3 
OF3C 
35335 C12H8F10O3 
390.17 
CH3F3C 
F 
O 
F3C 
CF3 
C2H5O 
O CH3F3C 
F 
O 
F3C 
CF3 
C2H5O 
O 
+ 
(R,S)-6-Fluoro-2-methyl-4,5,6-tris-
trifluoromethyl-6H-pyran-3-carboxylic acid 
ethyl ester 
III/35c2 2.2:1274 
35336 C12H8IN 
293.1 
I 
NH 3-Iodo-9H-carbazole III/35c2 2.2:1275 
35337 C12H8N2O 
196.21 
9-Nitroso-9H-carbazole; 
9-Nitrosocarbazole 
III/35e 2.2.3:3618 
2788-23-0 
N 
N O 
35338 C12H8N2O 
196.21 N 
N 
1,4a-Diaza-benzo[a]azulen-4-one III/35c2 2.2:1276 
O 
35339 C12H8N2S2 
244.34 
CN 
S 
S 
(3'-Cyanomethyl-[2,2']bithiophenyl-3-yl)acetonitrile 
III/35c2 2.2:1277 
NC 
35340 C12H8N4 
208.22 
N(-) 
N(+) 
C12H8N4 III/35b 3.2:1400 
N(+) 
N(-) 
35341 C12H8N6 
236.23 
H2N 
CN 
N 
N 
N 
N 
9-(4-Amino-phenyl)-9H-purine-6-
carbonitrile 
III/35c2 2.2:1278 
35342 C12H8O 
168.19 
O 2H-Acenaphthylen-1-one III/35e 2.2.1:1398 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35343 C12H8OS 
200.26 
O 
S Phenoxathiine III/35e 2.2.2:3008 
35344 C12H8O2 
184.19 
O 2,5-Cyclohexadiene-1,4-dione, 2-phenyl-; 
2-Phenyl-[1,4]benzoquinone 
III/35e 2.2.1:1399 
363-03-1 
PhO 
35345 C12H8O2S 
216.26 
Ph Ph (R,S)-4-Phenyl-4H-thieno[2,3-c]furan-6-one III/35c2 2.2:1279 
O + O 
S S 
O O 
35346 C12H8O2S 
216.26 
O 
O 
S 
Phenoxathiine 10-oxide III/35e 2.2.5:4301 
35347 C12H8O3 
200.19 
PhO 
O O 
6-Phenyl-3H-furo[3,4-c]furan-1-one III/35c2 2.2:1280 
35348 C12H8O3 
200.19 
O 
O 
O 
4,5-Dihydro-naphtho[1,2-c]furan-1,3-dione III/35e 2.2.1:1401 
35349 C12H8O3 
200.19 
55991-73-6 
O O 
O 4,5-Dihydro-naphtho[1,2-b]furan-2,3-dione III/35e 2.2.1:1400 
35350 C12H8O4 
216.19 
O 
3-[2-Oxo-dihydro-furan-(3Z)-ylidene]-3H-
isobenzofuran-1-one 
III/35c2 2.2:1281 
O O 
O 
35351 C12H8O4 
216.19 
298-81-7 
OO 
O 
H3C 
O 
5-Benzofuranacrylic acid, 6-hydroxy-7-
methoxy-, d-lactone; 
7H-Furo[3,2-g][1]benzopyran-7-one, 9methoxy; 
9-Methoxy-furo[3,2-g]chromen-7-one 
III/35e 2.2.1:1402 
35352 C12H8O4 
216.19 
484-20-8 
O 
CH3 7H-Furo[3,2-g][1]benzopyran-7-one, 4methoxy; 
5-Methoxy-6,7-furanocoumarin; 
4-Methoxy-furo[3,2-g]chromen-7-one 
III/35e 2.2.1:1403 
OO O 
35353 C12H9BO2 
196.01 
5747-23-9 
O 
B 
O 
Ph 
1,3,2-Benzodioxaborole, 2-phenyl- III/35a 2.2:1025 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35354 
260.21 
C12H9BS3 C12H9BS3 III/35a 2.2:1026 
SS B 
S 
35355 C12H9BrFNO3 
314.11 
O 
O 
O 
Br 
F NH 
C2H5 
6-Bromo-7-fluoro-4-oxo-1,4-dihydro-
quinoline-3-carboxylic acid ethyl ester 
III/35c2 2.2:1282 
35356 C12H9BrN2 
261.12 
4418-84-2 
Br 
N 
N 
Ph (4-Bromo-phenyl)-phenyl-diazene; 
Diazene, (4-bromophenyl)phenyl- 
III/35b 3.2:1401 
35357 C12H9BrO 
249.1 
CH3O 1-(4-bromo-(1)naphthyl)-ethanone; 
1-(4-Bromo-naphthalen-1-yl)-ethanone 
III/35e 2.2.1:1405 
46258-62-2 
Br 
35358 C12H9BrO2S 
297.17 O 
H3C 
O 
S 
Br 4-(4-Bromo-phenyl)-thiophene-2-carboxylic 
acid methyl ester 
III/35c2 2.2:1283 
35359 C12H9ClF6O 
318.64 
CF3 1-Chloro-4-[(Z)-3,3,3-trifluoro-1-(2,2,2-
trifluoro-ethoxymethyl)-propenyl]-benzene 
III/35b 2.2:1212 
O CF3 
Cl 
35360 C12H9ClN2O 
232.67 O(-) 
Cl N-(4-Chloro-phenyl)-N'-phenyl-diazene N'-
oxide 
III/35e 2.2.3:3619 
N(+) 
Ph N 
35361 
244.68 
C12H9ClN4 NN 3-(4-Chloro-phenyl)-5-methyl-5H-
pyrazolo[3,4-d]pyridazine 
III/35c2 2.2:1284 
N 
ClN 
CH3 
35362 C12H9ClO 
204.65 
ClO 
CH3 
2-Methyl-naphthalene-1-carbonyl chloride III/35e 2.2.1:1407 
35363 C12H9ClO 
204.65 
Cl 
OCH3 1-Methyl-naphthalene-2-carbonyl chloride III/35e 2.2.1:1408 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35364 C12H9ClOS 
236.72 
1016-82-6 
S 
Ph 
Cl 
O Benzene, 1-chloro-4-(phenylsulfinyl)-; 
1-Benzenesulfinyl-4-chloro-benzene; 
p-Chlorophenyl phenyl sulfoxide; 
Sulfoxide, p-chlorophenyl phenyl 
III/35e 2.2.5:4302 
35365 C12H9Cl2OP 
271.08 
Cl 
PH 
O 
Cl 
C12H9Cl2OP III/35e 2.2.4:3816 
35366 C12H9Cl3N3O4V 
416.52 
O 
NV 
O 
ClCl 
Cl 
C12H9Cl3N3O4V III/35c4 2.2:1233 
NH 
NO2 
35367 
267.2 
C12H9CrNO3 CH3 CH3 C12H9CrNO3 III/35c4 2.2:1234 
CrCO 
C O 
C 
CN + 
O 
CrCO 
C O 
C 
CN 
O 
35368 C12H9CrNO3 
267.2 
C12H9CrNO3 III/35c4 2.2:1235 
N 
Cr C 
C 
H3C 
O C 
O 
O 
35369 
283.2 
C12H9CrNO4 
CN 
C12H9CrNO4 III/35c4 2.2:1236 
Cr 
C 
O 
C 
O 
CO CH3 
O 
35370 
283.2 
C12H9CrNO4 H3C 
CN 
O C12H9CrNO4 III/35c4 2.2:1237 
C 
C 
O 
CrCO 
O 
35371 C12H9CrO6P 
332.17 O OC 
O C12H9CrO6P III/35c4 2.2:1238 
Cr 
C 
O 
C 
C 
C 
O PH 
PhO 
CH3 
35372 C12H9F 
172.2 
321-60-8 
Ph 
F 1,1'-Biphenyl, 2-fluoro-; 
2-Fluorobiphenyl; 
2-Fluorodiphenyl 
III/35b 2.2:1213 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35373 C12H9FN2O4S 
296.27 NO2 
O CH3 
O 
4-(4-Fluoro-2-nitro-phenylamino)-
thiophene-3-carboxylic acid methyl ester 
III/35c2 2.2:1285 
NH 
F S 
35374 C12H9FO 
188.2 
O 
F 
2-Fluoro-1-naphthalen-2-yl-ethanone III/35b 2.2:1214 
35375 C12H9FO 
188.2 
CH3O 
F 
1-(4-Fluoro-naphthalen-1-yl)-ethanone III/35e 2.2.1:1409 
35376 C12H9FO2 
204.2 
O 
O 
CH3 
3-Fluoro-azulene-1-carboxylic acid methyl 
ester 
III/35b 2.2:1215 
F 
35377 C12H9F2P 
222.17 
F PH F Bis-(3-fluoro-phenyl)-phosphane III/35a 3.2:1025 
35378 C12H9F3N2O2 
270.21 
N 
O 
C2H5O 
CF3N 
2-Trifluoromethyl-[1,8]naphthyridine-3-
carboxylic acid ethyl ester 
III/35c2 2.2:1286 
35379 C12H9F3N2O4 
302.21 O2N 
C2H5 
CF3 
OO 
N 
5-Ethoxy-2-(4-nitro-phenyl)-4-
trifluoromethyl-oxazole 
III/35c2 2.2:1287 
35380 C12H9F11N2 
390.2 
C5F11 3-Undecafluoropentyl-4,5,6,7-tetrahydro-
1H-indazole 
III/35c2 2.2:1288 
N 
NH 
35381 
167.21 
C12H9N 
NH 
1H-Benzo[g]indole III/35b 3.2:1402 
35382 C12H9NO 
183.21 
Phenyl 2-pyridyl ketone; 
Phenyl-pyridin-2-yl-methanone 
III/35b 3.2:1403 
91-02-1 Ph 
N 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35383 C12H9NO 
183.21 
5961-55-7 
O CH3 
NC 
4-Methoxy-1-naphthonitrile; 
4-Methoxy-naphthalene-1-carbonitrile; 
1-Naphthalenecarbonitrile, 4-methoxy-
III/35e 2.2.2:3010 
35384 C12H9NO 
183.21 
NH 10H-Phenoxazine III/35e 2.2.2:3011 
135-67-1 
O 
35385 C12H9NOS 
215.27 
CN 
HO 
H3C S 
4-Hydroxy-3-(5-methyl-thiophen-2-yl)benzonitrile 
III/35c2 2.2:1289 
35386 C12H9NOS2 
247.34 
O 
C 
N 
SS 
5-Isocyanato-5,6-dihydro-4H-
cyclohepta[2,1-b;3,4-b']dithiophene 
III/35c2 2.2:1290 
35387 C12H9NO2 
199.21 Ph 
3-Phenyl-pyridine-2-carboxylic acid III/35c2 2.2:1291 
N 
COOH 
35388 C12H9NO2 
199.21 
O 
N(+) O(-) 
(1-Oxy-pyridin-4-yl)-phenyl-methanone III/35e 2.2.3:3620 
Ph 
35389 C12H9NO2S 
231.27 
NH 5-Oxo-5,10-dihydro-5.4-phenothiazin-3-ol III/35c2 2.2:1292 
OHS 
O 
35390 C12H9NO3S 
247.27 
OO 
OS 
CN 
5-(Toluene-4-sulfonyl)-furan-2-carbonitrile III/35c2 2.2:1293 
H3C 
35391 C12H9NO4 
231.2 
OH 
CH3 
O 
1-(1-Hydroxy-4-nitro-naphthalen-2-yl)ethanone 
III/35e 2.2.2:3012 
O2N 
35392 C12H9NO4 
231.2 
O O 
N 
O 
N 
O 2-((R,S)-2-Oxo-tetrahydro-furan-3-yl)-
benzo[d][1,3]oxazin-4-one 
III/35c2 2.2:1294 
+ 
O O 
O O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35393 C12H9NO5W 
431.04 
W(-) 
O 
C 
OC 
O 
OC 
C 
C 
O 
N(+)H3C 
W(-) 
O 
C 
OC 
O 
OC 
C 
C 
O 
N(+)H3C 
+ 
C12H9NO5W III/35c4 2.2:1239 
35394 C12H9NS 
199.27 CH3 
S 2-Methyl-thieno[3,2-b]quinoline III/35c2 2.2:1295 
N 
35395 C12H9N3 
195.22 Ph 
NH 
N 
N 
6-Phenyl-5H-pyrrolo[2,3-b]pyrazine III/35c2 2.2:1296 
35396 C12H9N3O 
211.22 
CH3O NH 3-Methyl-2H-pyrido[3,2-f]quinazolin-1-one III/35c2 2.2:1297 
N 
N 
35397 C12H9N3O2 
227.22 
O C12H9N3O2 III/35c2 2.2:1299 
N 
N 
N 
O 
35398 C12H9N3O3 
243.22 
Ph 
N(+)NO2N 
O(-) N-(4-Nitro-phenyl)-N'-phenyl-diazene N'-
oxide 
III/35b 3.2:1405; 
III/35e 2.2.3:3621 
35399 C12H9N3O3 
243.22 O 
O 2-Phenyl-[1,2,4]triazolo[1,2-a]pyridazine-
1,3,6-trione 
III/35c2 2.2:1300 
N 
PhN 
N 
O 
35400 C12H9N3O3 
243.22 
ONH Cyano-[3-oxo-3,4-dihydro-1H-quinoxalin-
(2Z)-ylidene]-acetic acid methyl ester 
III/35c2 2.2:1302 
CN 
NH 
CH3O O 
35401 C12H9N3O3 
243.22 
H3C OHO 
N 
5-Amino-8-hydroxy-1-methyl-1H-
benzo[f]indazole-4,9-dione 
III/35c2 2.2:1301 
N 
NH2O 
35402 C12H9N3O4 
259.22 
NO2 
NH 
O2N 
Bis-(4-nitro-phenyl)-amine III/35b 3.2:1406 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35403 C12H9N3O4 
259.22 
O 
O 
CH3 
O 
NN 
7-Cyano-pyrrolo[1,2-b]pyridazine-5,6-
dicarboxylic acid dimethyl ester 
III/35c2 2.2:1303 
CH3 
ONC 
35404 C12H9N3O6 
291.22 
CH3O 
O 
O 
O2N 
O 
NH 
N [3-(4-Nitro-phenyl)-5-oxo-4,5-dihydro-
[1,2,4]oxadiazin-(6E)-ylidene]-acetic acid 
methyl ester 
III/35c2 2.2:1304 
35405 C12H9N5O 
239.23 
CN 
N 
4,7-Dimethyl-3-oxo-3,4-dihydro-
benzo[4,5]imidazo[1,2-b][1,2,4]triazine-2-
III/35c2 2.2:1305 
carbonitrile 
H3C CH3 
O 
N 
N 
N 
35406 C12H9O3P 
232.17 
Tri-furan-2-yl-phosphane III/35c4 2.2:1240 
OO P 
O 
35407 C12H9O3P 
232.17 O 
O 
Tri-furan-3-yl-phosphane III/35c4 2.2:1241 
P 
O 
35408 C12H9O4P 
248.17 
181-85-1 
O 
O 
PH 
O 
O 2.5-2,2'-Spirobi[1,3,2-
benzodioxaphosphole] 
III/35a 3.2:1026 
35409 C12H9O6PW 
464.01 O OC 
O C12H9O6PW III/35c4 2.2:1242 
CC 
W 
O 
CC 
O PH 
PhO 
CH3 
35410 C12H10As2Mo6 
O24 
1263.68 
[(PhAs)2Mo6O24]4-III/35e 2.2.7:4738 
35411 C12H10BBr 
244.92 
PhPh 
B 
Br Diphenylbromoborane III/35a 2.2:1027 
35412 C12H10BNO 
195.03 
B 
O 
Ph 
2-Phenyl-2,3-dihydro-
benzo[1,3,2]oxazaborole 
III/35e 2.2.2:3013 
NH 
35413 C12H10BNO2S 
243.09 
SO C12H10BNO2S III/35a 2.2:1028 
B 
NH2O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35414 C12H10BrF 
253.11 
35415 C12H10BrNO2S 
312.18 
16468-97-6 
35416 C12H10BrNO3 
296.12 
33588-54-4 
35417 C12H10BrO7Re 
532.32 
35418 C12H10Br2Ni2O2 
Sn 
582.09 
35419 C12H10Br4Ga2 
613.27 
35420 C12H10ClF 
208.66 
35421 C12H10ClFO3S 
288.72 
35422 C12H10ClF3Ni 
305.35 
35423 C12H10ClNO2 
235.67 
Br 
F + 
S 
O O 
PhNH 
Br 
O 
O 
CH3 
CH3 
O 
Br 
N 
O 
Re 
O 
O 
OO 
O 
O Br 
H3C 
H3C 
(-)(-) 
Ni(+) 
Sn 
Ni(+) 
Br Br 
C 
O 
C 
O 
Br 
Br BrPh 
Ga 
Br 
Ga 
Ph 
Cl 
F + 
S 
O O 
F 
Cl 
O C2H5 
(-) 
(delocalized system) 
CH(-) 
Ni(2+) 
F 
F 
F 
Cl 
O 
CH3O 
ClN 
Br 
F 
1-((R,S)-2-Bromo-2-fluoro-ethyl)-
naphthalene 
III/35b 2.2:1216 
Benzenesulfonamide, N-(4-bromophenyl)-; 
Benzenesulfonanilide, 4'-bromo-; 
N-(4-Bromo-phenyl)-benzenesulfonamide; 
4'-Bromobenzenesulfonanilide 
III/35b 3.2:1407 
Acetic acid 1-acetyl-5-bromo-1H-indol-3-yl 
ester; 
N-Acetyl-5-bromoindolyl acetate 
III/35c2 2.2:1306 
C12H10BrO7Re III/35c4 2.2:1243 
C12H10Br2Ni2O2Sn III/35c4 2.2:1244 
C12H10Br4Ga2 III/35c4 2.2:1245 
Cl 
F 
1-((R,S)-2-Chloro-2-fluoro-ethyl)-
naphthalene 
III/35b 2.2:1217 
2-((Z)-2-Chloro-1-fluoro-vinyl)-3-ethoxy-
benzo[b]thiophene 1,1-dioxide 
III/35b 2.2:1218; 
III/35c2 2.2:1307 
C12H10ClF3Ni III/35c4 2.2:1246 
(2-Chloro-quinolin-4-yl)-acetic acid methyl 
ester 
III/35c2 2.2:1308 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35424 C12H10ClNO2S 
267.73 
O 7-Chloro-2-ethylsulfanyl-4-oxo-1,4-dihydro-
quinoline-3-carbaldehyde 
III/35c2 2.2:1309 
O 
C2H5 
SCl NH 
35425 C12H10ClNO4S 
299.73 O(-)O 
O 
Cl 
O 
CH3 
S 
N(+) 
3-Methylsulfanyl-pyrrolo[2,1,5-
de]quinolizinylium; perchlorate 
III/35c2 2.2:1310 
35426 C12H10ClO2PSe 
331.59 PhPh 
O 
P 
O 
Se Cl C12H10ClO2PSe III/35a 3.2:1027 
35427 C12H10ClO7Tc 
400.56 
O 
Tc 
O 
O 
OO 
O 
O Cl 
H3C 
H3C C12H10ClO7Tc III/35c4 2.2:1247 
35428 C12H10Cl2GeNi2 
O2 
447.14 
(-)(-) 
Ni(+) 
Ge 
Ni(+) 
Cl Cl 
C 
O 
C 
O 
C12H10Cl2GeNi2O2 III/35c4 2.2:1248 
35429 C12H10Cl2N2O2 
285.13 
Cl(-) 
NO2Cl 
N(+) 
Cl(-) 
NO2Cl 
N(+)+ 
1-[(R,S)-Chloro-(2-nitro-phenyl)-methyl]-
pyridinium chloride 
III/35c2 2.2:1313 
35430 C12H10Cl2N2O2 
285.13 Cl 
O 2-(2,3-Dichloro-2,3-dimethyl-aziridin-1-yl)-
isoindole-1,3-dione 
III/35c2 2.2:1311 
NN 
Cl 
O 
35431 C12H10Cl2N2O2 
285.13 
ee appendix No: 35431S(R,S)-6,8-Dichloro-3a-ethyl-3a,4-dihydro-
2H-chromeno[4,3-c]pyrazol-3-one 
III/35c2 2.2:1312 
35432 C12H10Cl2Sn 
343.8 
1135-99-5 Ph 
Sn 
Cl Cl 
Ph 
Dichlorobis(phenyl)tin; 
Dichlorodiphenylstannane; 
Diphenyltin dichloride; 
Stannane, dichlorodiphenyl- 
III/35c4 2.2:1250 
35433 C12H10Cl4Ga2 
435.47 
Cl 
Cl ClPh 
Ga 
Cl 
Ga 
Ph C12H10Cl4Ga2 III/35c4 2.2:1251 
35434 C12H10CrI2O6 
556.01 O 
CH3 C12H10CrI2O6 III/35c4 2.2:1252 
O O 
H3C CH3 
II 
Cr C O 
C 
C 
O 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35435 C12H10CrO3 
254.2 
95253-43-3 
OCH2 
C 
O 
O 
C 
CH2 
Cr 
C 
Chromium, tricarbonyl(5,6-dimethylene-2-
norbornene)-
III/35c4 2.2:1253 
35436 C12H10FNO2S 
251.28 S 
O O 
PhNH 
F 
N-(4-Fluoro-phenyl)-benzenesulfonamide III/35b 3.2:1408 
35437 C12H10FNO3 
235.21 
O 
C2H5O 
O 
F NH 
7-Fluoro-4-oxo-1,4-dihydro-quinoline-3-
carboxylic acid ethyl ester 
III/35c2 2.2:1314 
35438 C12H10FOP 
220.18 
1135-98-4 PhPh 
P 
O F Phosphinic fluoride, diphenyl- III/35a 3.2:1028 
35439 C12H10FO2P 
236.18 PhPh 
O 
P 
O 
F Phosphorofluoridous acid diphenyl ester III/35a 3.2:1029 
35440 C12H10FO2PS 
268.24 PhPh 
O 
P 
O 
FS C12H10FO2PS III/35a 3.2:1030 
35441 C12H10FP 
204.18 
PhPh 
P 
F Diphenylfluorophosphane III/35a 3.2:1031 
35442 C12H10FPS 
236.25 
PhPh 
P 
FS Diphenylfluorophosphane-sulfide III/35a 3.2:1032 
35443 C12H10FPS3 
300.38 PhPh 
S 
P 
S 
FS C12H10FPS3 III/35a 3.2:1033 
35444 C12H10F2NOP 
253.18 
Ph 
F 
Ph 
N 
P 
F 
O C12H10F2NOP III/35a 3.2:1034 
35445 C12H10F2O 
208.2 
(E/Z) 
F 
Ph 
O 
F 
6,6-Difluoro-1-phenyl-hexa-1,5-dien-3-one III/35b 2.2:1219 
35446 C12H10F2O 
208.2 
O 
F 
F 
O 
+ F 
F 
(R,S)-2-(2,2-Difluoro-vinyl)-3,4-dihydro-2H-
naphthalen-1-one 
III/35b 2.2:1220 
35447 C12H10F2O2P2 
286.15 
Ph 
Ph 
P 
O 
P 
O 
F 
F C12H10F2O2P2 III/35a 3.2:1035 
35448 C12H10F2O3P2 
302.15 
O 
Ph 
P 
O 
P 
F 
F 
O 
Ph C12H10F2O3P2 III/35a 3.2:1036, 
1037 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35449 C12H10F3N 
225.21 
CF3 
CH3N 
2-Methyl-4-(2,2,2-trifluoro-ethyl)-quinoline III/35c2 2.2:1315 
35450 C12H10F3NO 
241.21 
CF3 
CH3 
ON 
4-Methyl-2-(2,2,2-trifluoro-ethoxy)-quinoline III/35c2 2.2:1316 
35451 C12H10F3NO2 
257.21 
CF3 1-Trifluoromethyl-indolizine-3-carboxylic 
acid ethyl ester 
III/35c2 2.2:1317 
N 
O C2H5 
O 
35452 C12H10F4N3P3 
365.14 
N 
P 
N 
P 
N 
F 
FF 
F 
Ph 
P 
Ph 2,2,4,4-Tetrafluoro-6,6-diphenyl-
2.5,4.5,6.5-[1,3,5,2,4,6]triazatriphosphinine 
III/35a 3.2:1038 
35453 C12H10F4Ni 
288.89 
(-) 
(delocalized system) 
CH(-) 
Ni(2+) 
F 
F 
F 
F 
C12H10F4Ni III/35c4 2.2:1254 
35454 C12H10F4O3 
278.2 Ph 
O 
F CF3 
O 
O 
C2H5 Ph 
O 
F CF3 
O 
O 
C2H5+ 
(R,S)-2-Benzoyl-2,3,3,3-tetrafluoro-
propionic acid ethyl ester 
III/35b 2.2:1221 
35455 C12H10F5N 
263.21 
FF 
C2H5 
C2H5 
2-Ethyl-2-pentafluorophenyl-butyronitrile III/35b 2.2:1222 
F 
F F 
CN 
35456 C12H10F6O 
284.2 
CF3 [(Z)-3,3,3-Trifluoro-1-(2,2,2-trifluoro-
ethoxymethyl)-propenyl]-benzene 
III/35b 2.2:1223 
O CF3 
Ph 
35457 C12H10F6O4S 
364.26 
See appendix No: 35457 Trifluoro-methanesulfonic acid (R,S)-2-(4-
methoxy-phenyl)-1-trifluoromethyl-allyl 
ester 
III/35b 2.2:1224 
35458 C12H10Fe2O8 
393.89 
O OH3C 
C12H10Fe2O8 III/35c4 2.2:1255 
H3C 
FeFe C O 
C 
O 
C 
O 
C 
O 
C 
O 
CO 
35459 C12H10LiP 
192.12 
4541-02-0 PhPh 
P 
Li Lithio diphenylphosphine III/35a 3.2:1039 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35460 C12H10MnNO3 
271.15 
(delocalized system) 
CH3 
C12H10MnNO3 III/35c4 2.2:1256 
CH(-) 
CN 
O 
Mn(+) C O 
C 
O 
C 
35461 C12H10MoO3 
298.15 
O 
CH2 C 
C12H10MoO3 III/35c4 2.2:1257 
Mo 
C 
OCH2 C 
O 
35462 C12H10NO5PW 
463.02 C 
C 
O 
O 
C 
W 
O 
PH 
H3C 
NHPh 
C 
O 
C 
O 
C12H10NO5PW III/35c4 2.2:1258 
35463 C12H10N2 
182.22 
C2H5 
CNN 
4-Ethyl-quinoline-2-carbonitrile III/35c2 2.2:1318 
35464 C12H10N2 
182.22 
[2-Methyl-2H-isoquinolin-(1E)-ylidene]-
acetonitrile 
III/35c2 2.2:1319 
N 
CH3 
NC 
35465 C12H10N2 
182.22 
NNH CH3 
2-Methyl-9H-pyrido[2,3-b]indole III/35b 3.2:1410 
35466 C12H10N2 
182.22 
486-84-0 N 
NH 
CH3 
1-Methyl-9H--carboline; 
9H-Pyrido[3,4-b]indole, 1-methyl-
III/35b 3.2:1411 
35467 C12H10N2O 
198.22 
O 
H3C 
CN 4-Methyl-2-oxo-1-phenyl-2,5-dihydro-1H-
pyrrole-3-carbonitrile 
III/35c2 2.2:1320 
N 
Ph 
35468 C12H10N2O 
198.22 
86-30-6 
Ph 
Ph 
ON 
N 
Benzenamine, N-nitroso-N-phenyl-; 
N,N-Diphenyl-N-nitrosoamine; 
Diphenylamine, N-nitroso-; 
Diphenylnitrosamine 
III/35e 2.2.3:3623 
35469 C12H10N2O 
198.22 
Ph 
PhN(+) 
O(-) 
N 
N,N'-Diphenyl-diazene N-oxide III/35e 2.2.3:3624 
35470 C12H10N2O 
198.22 
Ph 
PhN(+) 
O(-) 
N 
N,N'-Diphenyl-diazene N-oxide III/35e 2.2.3:3625 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35471 C12H10N2OS 
230.29 
O 
S 
N 
Ph 
NH 
C12H10N2OS III/35e 2.2.5:4303 
35472 C12H10N2O2 
214.22 
OH 3-Ethoxy-1-hydroxy-isoquinoline-4-
carbonitrile 
III/35c2 2.2:1321 
N 
C2H5O 
CN 
35473 C12H10N2O3 
230.22 
NO2NH 
H3C 
O 
N-(4-Nitro-naphthalen-1-yl)-acetamide III/35e 2.2.3:3627 
35474 C12H10N2O3S 
262.28 
COOH 
O 
SN 
N 
COOH 
O 
SN 
N+ 
((R,S)-3-Oxo-2,3-dihydro-5H-thiazolo[2,3-
b]quinazolin-5-yl)-acetic acid 
III/35c2 2.2:1322 
35475 C12H10N2O4S 
278.28 
1829-81-8 
S 
O O 
PhNH 
O2N 
Benzenesulfonamide, N-(4-nitrophenyl)-; 
Benzenesulfonanilide, 4'-nitro-; 
N-(4-Nitro-phenyl)-benzenesulfonamide; 
4'-Nitrobenzenesulfonanilide 
III/35b 3.2:1413 
35476 C12H10N2O4S 
278.28 
NO2 1-(4-Nitro-benzenesulfonyl)-1H-azepine III/35c2 2.2:1323 
N 
S 
OO 
35477 C12H11N3O2 
229.24 
See appendix No: 35477 (R,S)-3-Methyl-1-oxy-3,10b-dihydro-1H-
naphtho[1,2-e][1,2,4]triazin-2-one 
III/35c2 2.2:1298 
35478 C12H10N4O 
226.23 
NH 
N 
NH 9H--Carboline-3-carboxylic acid hydrazide III/35c2 2.2:1324 
NH2 
O 
35479 C12H10N4O5 
290.23 
NO2O2N 
N 
6,6-Dinitro-6,7,8,9-tetrahydro-pyrido[2,1-
b]quinazolin-11-one 
III/35c2 2.2:1325 
N 
O 
35480 C12H10NiO 
228.9 (-) 
Cyclopentadienyl-phenyl-carbonyl-nickel III/35c4 2.2:1259 
Ni(+) 
CPh 
O 
35481 C12H10Ni2O2 
303.59 
(-)(-) Ni(+) Ni(+) 
O 
O 
C12H10Ni2O2 III/35c4 2.2:1260; 
III/35e 2.2.7:4803 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35482 C12H10O 
170.21 
O 
Ph 
2-((Z)-Styryl)-furan III/35c2 2.2:1326 
35483 C12H10OS 
202.27 
PhS 
O 
H3C 
1-(5-Phenyl-thiophen-2-yl)-ethanone III/35e 2.2.1:1412 
35484 C12H10OS2 
234.34 OH 
CH3 
SS SS+ OH 
CH3 
(R,S)-4-[2,2']Bithiophenyl-5-yl-but-3-yn-2-ol III/35c2 2.2:1327 
35485 C12H10O2 
186.21 
(E/Z) 
Ph 
O 
O 
2-(3-Phenyl-allylidene)-malonaldehyde III/35e 2.2.1:1413 
35486 C12H10O2 
186.21 
15971-29-6 
CH3O 
O 
4-Methoxy-1-naphthaldehyde; 
4-Methoxy-naphthalene-1-carbaldehyde; 
1-Naphthalenecarboxaldehyde, 4-methoxy-
III/35e 2.2.1:1420 
35487 C12H10O2S 
218.27 
98061-54-2 
O 
H3C 
S 
O 
3-p-Tolylsulfanyl-pyran-2-one III/35c2 2.2:1328 
35488 C12H10O2S2 
250.34 
1212-08-4 
O 
Ph 
S 
S 
O 
Ph 
Benzenesulfonic acid, thio-, S-phenyl ester; 
Benzenesulfonothioic acid, S-phenyl ester; 
Benzenethiosulfonic acid S-phenyl ester 
III/35e 2.2.5:4306 
35489 C12H10O3 
202.21 
132680-91-2 
O 
H5C2 
O 
O 
5-(4-Ethyl-phenyl)-furan-2,3-dione III/35e 2.2.1:1421 
35490 C12H10O3 
202.21 
CH3O 
Ph 
4-Methoxy-6-phenyl-pyran-2-one III/35c2 2.2:1330 
O 
O 
35491 C12H10O3 
202.21 
O 
CH3 
Acetic acid 1-oxo-indan-(2E)-ylidenemethyl 
ester 
III/35e 2.2.1:1422 
O 
O 
35492 C12H10O3 
202.21 
O 
O 
C2H5 
O 
(7-Ethyl-benzofuran-2-yl)-oxo-acetaldehyde III/35c2 2.2:1329 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35493 C12H10O3 
202.21 
O 
H3C 
CH3 
O 
O 
3-Acetyl-2-methyl-cyclohepta[b]furan-8-one III/35c2 2.2:1332 
35494 C12H10O3 
202.21 
40124-16-1 CH2 
OH 
OO 
3-Allyl-4-hydroxy-chromen-2-one; 
3-(3'-propylene)-4-hydroxycoumarin 
III/35c2 2.2:1331 
35495 C12H10O3W 
386.05 
94846-02-3 
O 
CH2 C 
Tungsten, tricarbonyl(5,6-dimethylene-2-
norbornene)-
III/35c4 2.2:1262 
W 
C 
OCH2 C 
O 
35496 C12H10O4 
218.21 
OO 
CH3H3C 
OO 
1-(5'-Acetyl-[2,2']bifuranyl-5-yl)-ethanone III/35c2 2.2:1334 
35497 C12H10O4 
218.21 
O 
CH3 
O 
O 
H3C O 
Acetic acid 4-methyl-2-oxo-2H-chromen-7-
yl ester 
III/35e 2.2.1:1423 
35498 C12H10O4 
218.21 
O 7-Hydroxymethyl-5-oxo-2,5-dihydro-
benzo[b]oxepine-3-carbaldehyde 
III/35c2 2.2:1333 
O 
HO 
O 
35499 C12H10O4 
218.21 
9-Methoxy-2,3-dihydro-furo[3,2-g]chromen-
7-one 
III/35e 2.2.1:1424 
OO O 
O 
H3C 
35500 C12H10O5 
234.21 
COOH 
OO 
CH3 
HO 
(7-Hydroxy-8-methyl-2-oxo-2H-chromen-4-
yl)-acetic acid 
III/35c2 2.2:1335 
35501 C12H10O6W 
434.04 OO 
C12H10O6W III/35c4 2.2:1261 
C C 
CO W 
C C CH3O 
O O 
35502 C12H11AsMo4O15 
853.89 
[Ph2AsMo4O15H]2-III/35e 2.2.7:4737 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35503 C12H11BN2O2 
226.04 
O NH C12H11BN2O2 III/35a 2.2:1029 
B 
O NH2 
35504 C12H11BN4 
222.05 
4280-48-2 N 
BH 
N 
NN 
Ph Ph 
1H-Tetrazaborole, 4,5-dihydro-1,4-
diphenyl- 
III/35a 2.2:1030 
35505 C12H11BrGe 
307.76 GeH 
Br 
PhPh 
Diphenylbromogermane III/35c4 2.2:1263 
35506 C12H11BrN2O3 
311.13 
Br 
NH 
N 
O 
O 
C2H5 
O 
1-(4-Bromo-phenyl)-3-oxo-2,3-dihydro-1H-
pyrazole-4-carboxylic acid ethyl ester 
III/35c2 2.2:1336 
35507 C12H11BrO 
251.12 
Ph 
Br 
O 
3-Bromo-2-phenethyl-furan III/35c2 2.2:1337 
35508 C12H11BrO2 
267.12 
CH3 CH3 6-Bromo-4,5,7-trimethyl-chromen-2-one III/35e 2.2.1:1425 
Br 
H3C O O 
35509 C12H11BrO2 
267.12 
CH3 O 6-Bromo-2,5,7-trimethyl-chromen-4-one III/35e 2.2.1:1426 
Br 
OH3C CH3 
35510 C12H11BrO4S 
331.18 
H3C 
O 
Acetic acid 4-bromo-1,1-dioxo-2,3-dihydro-
1H-1.6-benzo[]thiepin-5-yl ester 
III/35c2 2.2:1338 
O Br 
S 
OO 
35511 C12H11Br2NO3 
377.03 
CH3 Br 
O 
Br 
NH O 
C2H5O 
3,4-Dibromo-5-methoxy-1H-indole-2-
carboxylic acid ethyl ester 
III/35c2 2.2:1339 
35512 C12H11Br2N3O2 
389.04 Br 
O (6S,7S)-6,7-Dibromo-2-phenyl-tetrahydro-
[1,2,4]triazolo[1,2-a]pyridazine-1,3-dione 
III/35c2 2.2:1340 
N 
N Ph 
N 
Br 
O 
35513 C12H11ClFNO2S 
287.74 
F 
N CH3 
H3C [2-((Z)-2-Chloro-1-fluoro-vinyl)-1,1-dioxo-
1H-1.6-benzo[]thiophen-3-yl]-dimethyl-
amine; 
[2-((Z)-2-Chloro-1-fluoro-vinyl)-1,1-dioxo-
1H-1.6-benzo[b]thiophen-3-yl]-dimethyl-
III/35b 2.2:1225; 
III/35c2 2.2:1341 
S 
O 
O 
Cl amine 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35514 C12H11ClGe 
263.31 GeH 
Cl 
PhPh 
Diphenylchlorogermane III/35c4 2.2:1264 
35515 C12H11ClN2O 
234.68 
OCl 
N 
NH Cl 
+ 
O 
N 
NH 
(R,S)-7-Chloro-3a-methyl-2,3,3a,5-
tetrahydro-pyrrolo[3,2-c]quinolin-4-one 
III/35c2 2.2:1342 
35516 C12H11ClN2OS 
266.75 
NH2 4-Amino-7-chloro-2-ethylsulfanyl-quinoline-
3-carbaldehyde 
III/35c2 2.2:1343 
O 
C2H5SCl N 
35517 C12H11ClO2 
222.67 
Cl 5-(4-Chloro-phenyl)-2,2-dimethyl-furan-3-
one 
III/35c2 2.2:1345 
O 
O 
35518 C12H11ClO2 
222.67 
O 
Cl 
C2H5 
O 
2-Chloro-1-(7-ethyl-benzofuran-2-yl)ethanone 
III/35c2 2.2:1344 
35519 C12H11ClO3 
238.67 H5C2 
O OO 3-Chloro-7-ethoxy-4-methyl-chromen-2-one III/35c2 2.2:1346 
Cl 
CH3 
35520 C12H11ClO5 
270.67 
ClCH3O 
4-Chloromethyl-7-hydroxy-5,8-dimethoxy-
chromen-2-one 
III/35c2 2.2:1347 
HO OO 
O 
CH3 
35521 C12H11Cl2NO2S 
304.19 
Ph 
Cl 
Cl 
S 
OO 
N 
Ph 
Cl 
Cl 
S 
OO 
N 
+ 
(R,S)-4-Benzylsulfanyl-2-dichloromethyl-4methyl-
4H-oxazol-5-one 
III/35c2 2.2:1348 
35522 C12H11CrIO6 
430.11 O 
CH3 
O 
C12H11CrIO6 III/35c4 2.2:1265 
O C 
H3C 
Cr 
O 
H3C 
C 
C 
OI 
O 
35523 C12H11CrIO6 
430.11 O 
CH3 
O 
C12H11CrIO6 III/35c4 2.2:1266 
O CI 
H3C 
Cr 
O 
H3C 
C 
C 
OO 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35524 C12H11FGe 
246.85 GeH 
F 
PhPh 
Diphenylfluorogermane III/35c4 2.2:1267 
35525 C12H11FO 
190.21 
F 
O C2H5 1-Ethoxy-2-fluoro-naphthalene III/35b 2.2:1226 
35526 C12H11F3 
212.21 Ph 
F3C 
CH3 
((1E,3E)-5,5,5-Trifluoro-4-methyl-penta-1,3-
dienyl)-benzene 
III/35b 2.2:1227 
35527 C12H11F3O 
228.21 
O 
CF3 
O 
CF3+ 
(R,S)-2-(2,2,2-Trifluoro-ethyl)-3,4-dihydro-
2H-naphthalen-1-one 
III/35b 2.2:1228 
35528 C12H11F5O 
266.21 CH2 
F F 
H3C 
HO CF3 (R,S)-1,1,1,3,3-Pentafluoro-2-p-tolyl-pent-
4-en-2-ol 
III/35b 2.2:1229 
+ 
HO CF3 
CH2 
F F 
H3C 
35529 C12H11F6NO4 
347.21 O 
C2H5 
OO 
H5C2 
O 
CF3 
F3C NH 
2,5-Bis-trifluoromethyl-1H-pyrrole-3,4-
dicarboxylic acid diethyl ester 
III/35c2 2.2:1349 
35530 C12H11GeI 
354.76 GeH 
I 
PhPh 
Diphenyliodogermane III/35c4 2.2:1268 
35531 C12H11N 
169.22 
Ph 2-Methyl-3-phenylpyridine III/35c2 2.2:1350 
3256-89-1 
CH3N 
35532 C12H11N 
169.22 
CH3 CH3 (R,S)-9-Methyl-9H-pyrrolo[1,2-a]indole III/35c2 2.2:1351 
+ 
N N 
35533 C12H11NO 
185.22 Ph 
OH 
N 
4-Benzyl-pyridin-3-ol III/35c2 2.2:1353 
35534 C12H11NO 
185.22 
581-97-5 
NH CH3 
O 
Acetamide, N-2-naphthalenyl-; 
Acetamide, N-2-naphthyl-; 
N-Naphthalen-2-yl-acetamide 
III/35e 2.2.1:1429 
35535 C12H11NO 
185.22 
OH 
N CH3 1-[Methyliminomethyl]-naphthalen-2-ol III/35e 2.2.2:3015 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35536 C12H11NO 
185.22 
NC 
O 
2,2-Dimethyl-2H-chromene-6-carbonitrile III/35c2 2.2:1354 
35537 C12H11NO 
185.22 
N 
O 
CH3 
CH2 
2-Methyl-4-vinyloxy-quinoline III/35e 2.2.2:3017 
35538 C12H11NO 
185.22 
CH3 4-Methyl-2-vinyloxy-quinoline III/35e 2.2.2:3016 
34672-78-1 CH2 
N O 
35539 C12H11NO 
185.22 
O 2-Methyl-1-vinyl-1H-quinolin-4-one III/35e 2.2.1:1427 
71314-93-7 
N CH3 
CH2 
35540 C12H11NO 
185.22 
2,3-Dihydro-1H-cyclopenta[c]quinoline 5oxide 
III/35c2 2.2:1352 
N(+) 
O(-) 
35541 C12H11NOS 
217.29 
HN O 
Ph 
S 
Ph 
C12H11NOS III/35b 3.2:1414 
35542 C12H11NOS 
217.29 
O 
PhS 
N 
2-Phenylmethanesulfinyl-pyridine III/35c2 2.2:1356 
35543 C12H11NOS 
217.29 
CN (7-Ethoxy-benzo[b]thiophen-3-yl)acetonitrile 
III/35c2 2.2:1355 
S 
O 
C2H5 
35544 C12H11NO2 
201.22 Ph 
O 2-Phenylaminomethylene-cyclopentane-
1,3-dione 
III/35e 2.2.1:1430 
NH 
O 
35545 C12H11NO2 
201.22 
O 1-Benzyl-3-methyl-pyrrole-2,5-dione III/35c2 2.2:1357 
Ph N 
O 
CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35546 C12H11NO2 
201.22 
28752-91-2 
O 
O 
H3C 
N CH3 
2-Dimethylaminomethylene-indan-1,3-
dione 
III/35e 2.2.1:1431 
35547 C12H11NO2 
201.22 
OH3C 4-Acetyl-2-methyl-2H-isoquinolin-1-one III/35b 3.2:1415 
N 
CH3 
O 
35548 C12H11NO2 
201.22 
CH3 
ON 
9-Methyl-3,9-dihydro-2H-furo[2,3-
b]quinolin-4-one 
III/35c2 2.2:1358 
O 
35549 C12H11NO2S 
233.29 
O 
C2H5ON 
Ph 
2-Phenyl-thiazole-4-carboxylic acid ethyl 
ester 
III/35c2 2.2:1360 
S 
35550 C12H11NO2S 
233.29 
1678-25-7 
S 
O O 
PhNH 
Ph 
Benzenesulfonamide, N-phenyl-; 
Benzenesulfonanilide; 
N-Benzenesulfonylaniline; 
N-Phenyl-benzenesulfonamide 
III/35b 3.2:1416 
35551 C12H11NO2S 
233.29 O 
O 
Ph 
SH3C 
N 
5-Benzenesulfonyl-2-methyl-pyridine III/35c2 2.2:1359 
35552 C12H11NO3 
217.22 
O 
CH3 
OH3C 
NO 
Ph 5-Methyl-4-phenyl-isoxazole-3-carboxylic 
acid methyl ester 
III/35c2 2.2:1363 
35553 C12H11NO3 
217.22 
H5C2 COOH 
O 
2-[2-Oxo-1,2-dihydro-indol-(3Z)-ylidene]-
butyric acid 
III/35c2 2.2:1361 
NH 
35554 C12H11NO3 
217.22 CH3 
O 
O 
N 
4-Methoxy-2-methyl-benzo[c]azepine-1,3-
dione 
III/35c2 2.2:1362 
CH3O 
35555 C12H11NO3S 
249.29 
O 1-(1-Benzenesulfonyl-1H-pyrrol-3-yl)ethanone 
III/35c2 2.2:1364 
O 
H3C O 
N S 
Ph 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35556 C12H11NO4 
233.22 OH 
OH 
NC 
O 
O 
3,3-Dihydroxy-2,2-dimethyl-4-oxo-chroman-
6-carbonitrile 
III/35c2 2.2:1365 
35557 C12H11NO4 
233.22 
ONH2 3-Acetyl-4-amino-7-methoxy-chromen-2-
one 
III/35c2 2.2:1367 
CH3 
H3C 
O OO 
35558 C12H11NO4 
233.22 
H2N 6-Amino-9-methoxy-2,3-dihydro-furo[3,2-
g]chromen-7-one 
III/35c2 2.2:1366 
O OO 
O 
CH3 
35559 C12H11NO5 
249.22 Ph 
O 
H3C 
O 
O 
O 
N 
O 
Ph 
O 
H3C 
O 
O 
O 
N 
O 
+ 
(R,S)-3-Benzoyl-2-oxo-oxazolidine-4-
carboxylic acid methyl ester 
III/35c2 2.2:1370 
35560 C12H11NO5 
249.22 
O 
C2H5O 
O 6-Hydroxy-1-methyl-4,7-dioxo-4,7-dihydro-
1H-indole-5-carboxylic acid ethyl ester 
III/35c2 2.2:1368 
OHN 
H3C O 
35561 C12H11NO5 
249.22 
O (6-Acetyl-3-oxo-2,3-dihydro-
benzo[1,4]oxazin-4-yl)-acetic acid 
III/35c2 2.2:1369 
O 
H3C 
N 
O 
COOH 
35562 C12H11NO5W 
433.06 
W(-) 
O 
C 
OC 
H3C 
OC 
C 
CO 
N(+) 
O 
W(-) 
O 
C 
OC 
H3C 
OC 
C 
CO 
N(+) 
O 
+ 
C12H11NO5W III/35c4 2.2:1269 
35563 C12H11NS 
201.29 
NH 
Ph 
S 
Ph 
C12H11NS III/35b 3.2:1417 
35564 C12H11NS 
201.29 
CH2S 
N 
1-Allylsulfanyl-isoquinoline III/35c2 2.2:1371 
35565 C12H11N2O2P 
246.2 
NH 
O 
PH 
NH 
O C12H11N2O2P III/35c4 2.2:1270 
35566 C12H11N3 
197.24 
CN 6,7,8,9-Tetrahydro-5H-pyrido[4,3-b]indole-
1-carbonitrile 
III/35c2 2.2:1372 
N 
NH 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35567 C12H11N3O 
213.24 
103-18-4 
H2N N 
N OH 
4-(4-Amino-phenylazo)-phenol; 
4-[(4-Aminophenyl)azo]phenol; 
Phenol, 4-[(4-aminophenyl)azo]- 
III/35b 3.2:1419 
35568 C12H11N3O 
213.24 
CH3O 3-Isopropyl-4-oxo-3,4-dihydro-quinazoline-
2-carbonitrile 
III/35c2 2.2:1373 
CH3N 
CNN 
35569 C12H11N3OS 
245.3 CH3 
N 
N 
Ph (R,S)-2-Methyl-6-phenyl-2,3-dihydro-
thiazolo[3,2-b][1,2,4]triazin-7-one 
III/35c2 2.2:1374 
SO N 
+ 
CH3 
N 
N 
Ph 
SO N 
35570 C12H11N3O2 
229.24 
O 
N 
N-(7-Methyl-quinolin-6-yl)-N-nitroso-
acetamide 
III/35c2 2.2:1375 
CH3N 
O 
CH3N 
35571 C12H11N3O2 
229.24 
O C12H11N3O2 III/35c2 2.2:1376 
N 
N 
N 
O 
35572 C12H11N3O4S 
293.3 
OOO O 
S 
1-(2-Benzenesulfonyl-2-diazo-acetyl)-
pyrrolidin-2-one 
III/35c2 2.2:1378 
PhN 
N(+) 
N(-) 
35573 C12H11N3O4S 
293.3 
O 
Ph 
O2N 
S 
N NH O 
C2H5 
(5-Nitro-4-phenyl-thiazol-2-yl)-carbamic 
acid ethyl ester 
III/35c2 2.2:1377 
35574 C12H11N3O4S 
293.3 
NO2 
NH 
4-Methyl-N-(3-nitro-pyridin-2-yl)-
benzenesulfonamide 
III/35e 2.2.3:3628 
N S 
O 
CH3 
O 
35575 C12H11N3O4S 
293.3 
NO2 
N NH 
S 
O 
O 
CH3 
4-Methyl-N-(3-nitro-pyridin-4-yl)-
benzenesulfonamide; 
4-Methyl-N-(3-nitro-pyridin-4-yl)-
benzenesulfonamide 
III/35e 2.2.3:3629 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35576 C12H11N3O5 
277.23 
CN 
OH3C 
H3C 
O 
O 
NO2 
NH 
(R,S)-6,7-Dimethoxy-5-nitro-2-oxo-1,2,3,4-
tetrahydro-quinoline-4-carbonitrile 
III/35c2 2.2:1379 
CN 
OH3C 
H3C 
O 
O 
NO2 
NH 
+ 
35577 C12H11N5O2 
257.25 
NN 
N Ph 5-(5-Methoxy-2-phenyl-oxazol-4-yl)-2-
methyl-2H-tetrazole 
III/35b 3.2:1420 
N 
N O 
H3C 
OH3C 
35578 C12H11OP 
202.19 
4559-70-0 Ph 
PH 
O 
Ph 
Diphenyl-phosphine oxide; 
Diphenylphosphane oxide; 
Diphenylphosphinit; 
Diphenylphosphonous acid 
III/35a 3.2:1041; 
III/35c4 2.4:3373; 
III/35e 2.2.4:3817 
35579 
373.42 
C12H11O2Re 
(-) 
Re(+) C O 
C12H11O2Re III/35c4 2.2:1271 
C 
O 
35580 C12H11P 
186.19 
829-85-6 
Ph 
PH 
Ph 
Diphenyl-phosphane; 
Phosphine, diphenyl- 
III/35a 3.2:1042; 
III/35c4 2.2:1273 
35581 C12H11PS 
218.25 
Ph 
PH 
Ph 
S Diphenyl-phosphine sulfide III/35a 3.2:1043; 
III/35c4 2.4:3374 
35582 C12H11PSe 
265.15 
Ph 
Se 
PH 
Ph 
Diphenyl-phosphine selenide III/35c4 2.4:3375 
35583 C12H12B 
167.03 Ph 
BH2(-) 
Ph 
C12H12B-III/35a 2.2:1031 
35584 C12H12BCl2N8O 
Re 
552.2 N N 
N N 
ReB 
O 
ClN 
N 
C12H12BCl2N8ORe III/35c4 2.2:1274 
N N Cl 
35585 
209.06 
C12H12BN3 C12H12BN3 III/35a 2.2:1032 
NHNH B 
HN 
35586 C12H12BN3 
209.06 
N 
N 
N 
B 
C12H12BN3 III/35b 3.2:1421 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35587 C12H12BN8O3Re 
513.29 
N N 
N N 
N N 
Re 
O 
B 
O 
ON 
N 
C12H12BN8O3Re III/35c4 2.2:1275 
35588 C12H12B2 
177.85 
H 
C12H12B2 III/35a 2.2:1033 
BH BH 
H 
35589 C12H12BrNO 
266.13 
NH 
O 
Br 
3-(4-Bromo-phenylamino)-cyclohex-2-
enone 
III/35e 2.2.1:1432 
35590 C12H12BrNO 
266.13 Br 
O 
N 
H3C 
CH3 
6-Bromo-2-[1-dimethylamino-meth-(E)-
ylidene]-indan-1-one 
III/35e 2.2.1:1433 
35591 C12H12BrNO 
266.13 
(E/Z) 
O N 
3-[3-Bromo-propylidene]-2-methyl-2,3-
dihydro-isoindol-1-one 
III/35c2 2.2:1380 
CH3 
Br 
35592 C12H12BrNO2 
282.13 
Br 
O 
N 
H3C 
CH3 
OH 4-Bromo-2-[1-dimethylamino-meth-(E)-
ylidene]-7-hydroxy-indan-1-one 
III/35e 2.2.1:1434 
35593 C12H12BrNO3 
298.13 
CH3 
O 
O 
C2H5O 
Br 
NH 
3-Bromo-5-methoxy-1H-indole-2-carboxylic 
acid ethyl ester 
III/35c2 2.2:1381 
35594 C12H12ClF3 
248.67 
F3C Cl 
H3C 
F3C Cl 
H3C 
+ 
(R,S)-1-Chloro-7-methyl-1-trifluoromethyl-
1,2,3,4-tetrahydro-naphthalene 
III/35b 2.2:1231 
35595 C12H12ClF3O 
264.67 
F3C Cl 
OH3C 
F3C Cl 
OH3C+ 
(R,S)-1-Chloro-7-methoxy-1-trifluoromethyl-
1,2,3,4-tetrahydro-naphthalene 
III/35b 2.2:1232 
35596 C12H12ClNO 
221.68 
NH 
O 
Cl 
3-(3-Chloro-phenylamino)-cyclohex-2-
enone 
III/35e 2.2.1:1435 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35597 C12H12ClNO 
221.68 
NH 
O 
Cl 
3-(4-Chloro-phenylamino)-cyclohex-2-
enone 
III/35e 2.2.1:1436 
35598 C12H12ClNS 
237.75 
N 4-Chloro-3-propylsulfanyl-quinoline III/35c2 2.2:1382 
C3H7S 
Cl 
35599 C12H12Cl2O2 
259.13 
Cl 
C2H5Cl 
O 
O 
Cl+ 
Cl 
C2H5 
O 
O (R,S)-6-Chloro-3-chloromethyl-3-ethyl-
chroman-4-one 
III/35c2 2.2:1383 
35600 C12H12Cl4N5P3 
460.99 P 
NHNHPh Ph C12H12Cl4N5P3 III/35b 3.2:1422 
NN 
Cl 
Cl P 
N Cl 
P Cl 
35601 C12H12Cl6N6P4 
576.88 P N 
PN 
ClNHPh 
Cl 
Cl 
2,4,4,6,8,8-Hexachloro-N,N'-diphenyl-
2.5,4.5,6.5,8.5-
[1,3,5,7,2,4,6,8]tetrazatetraphosphocine-
2,6-diamine 
III/35a 3.2:1044 
NPCl 
PNCl 
Cl NH Ph 
35602 C12H12CrO2 
240.22 
(delocalized system) C12H12CrO2 III/35c4 2.2:1276 
(-) 
Cr(2+)C O 
CH(-) C 
O 
35603 C12H12CrO4 
272.22 
Cr 
O 
CH3 
H5C2 
CO 
C12H12CrO4 III/35c4 2.2:1277 
C 
OC 
O 
35604 C12H12CrO6 
304.22 
CrCO 
O 
O 
O CH3 
CH3 
CH3 
C12H12CrO6 III/35c4 2.2:1278 
C 
OC 
O 
35605 C12H12CrO6 
304.22 
O CH3 C12H12CrO6 III/35c4 2.2:1279 
O 
CrCO 
H3C 
O CH3 
C 
OC 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35606 C12H12FNO 
205.23 
NH 
O 
F 
3-(3-Fluoro-phenylamino)-cyclohex-2-
enone 
III/35e 2.2.1:1437 
35607 C12H12FNO 
205.23 
NH 
O 
F 
3-(4-Fluoro-phenylamino)-cyclohex-2-
enone 
III/35e 2.2.1:1438 
35608 C12H12FNO2S 
253.29 
NH CH3 7-Fluoro-3-methyl-4H-benzo[1,4]thiazine-2-
carboxylic acid ethyl ester 
III/35b 2.2:1233 
O 
SF C2H5 
O 
35609 C12H12FNO2S 
253.29 
CH3 
CH3 
NH 
7-Fluoro-3,5-dimethyl-4H-
benzo[1,4]thiazine-2-carboxylic acid methyl 
ester 
III/35c2 2.2:1384 
O 
CH3F S 
O 
35610 C12H12FN3 
217.24 
(E/Z) 
N 
N 
F 
N 
1-[4-(4-Fluoro-phenyl)-but-3-enyl]-1H-
[1,2,4]triazole 
III/35c2 2.2:1385 
35611 C12H12F2O 
210.22 
(E/Z) 
Ph 
OH 
CH2 
F F 
(R,S)-4,4-Difluoro-1-phenyl-hexa-1,5-dien-
3-ol 
III/35b 2.2:1234 
+ 
F F 
Ph 
OH 
CH2 
35612 C12H12F2O2 
226.22 
F F 
Ph 
2,2-Difluoro-5-phenyl-hex-5-enoic acid III/35b 2.2:1086 
COOH 
CH2 
35613 C12H12F2O2 
226.22 
F 
CH3 4-(2,2-Difluoro-1-methyl-vinyl)-benzoic acid 
ethyl ester 
III/35b 2.2:1236 
FO 
H5C2 
O 
35614 C12H12F3NO 
243.22 
(Z)-4-(3-Trifluoromethyl-phenylamino)-pent-
3-en-2-one 
III/35e 2.2.1:1439 
O NH CF3 
H3C CH3 
35615 C12H12F3NO 
243.22 H3C 
O 
CH3 
NH CF3 
(Z)-4-(4-Trifluoromethyl-phenylamino)-pent-
3-en-2-one 
III/35e 2.2.1:1440 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35616 C12H12F3NO 
243.22 NH3C 
O 
F3C 
H3C+ N 
O 
F3C (R,S)-1-p-Tolyl-5-trifluoromethyl-pyrrolidin-
2-one 
III/35b 2.2:1238 
35617 C12H12F4O3 
280.21 
PhO 
H5C2 
O 
F3C F 
OH 2,3,3,3-Tetrafluoro-2-(hydroxy-phenyl-
methyl)-propionic acid ethyl ester 
III/35b 2.2:1239 
35618 C12H12F6N2 
298.23 
CF3 2,4-Bis-trifluoromethyl-5,6,7,8,9,10-
hexahydro-cyclooctapyrimidine 
III/35b 2.2:1240 
N 
N CF3 
35619 C12H12F6PRe 
487.39 
Re(+) 
F 
F 
F 
F 
F 
P(-) 
F 
C12H12F6PRe III/35c4 2.2:1280 
35620 C12H12F6PTc 
400.09 
Tc(+) 
F 
F 
F 
F 
F 
P(-) 
F 
C12H12F6PTc III/35c4 2.2:1281 
35621 C12H12F8Ni 
366.9 
F F 
F 
F 
Ni 
C12H12F8Ni III/35c4 2.2:1282 
F F 
F 
F 
35622 
340.06 
C12H12FeO8 
O 
H5C2 O 
O O 
H5C2 
C12H12FeO8 III/35c4 2.2:1283 
O 
O 
Fe 
C 
C 
O 
CO 
C 
35623 C12H12Ge 
228.86 Ph Ph 
GeH2 Diphenyl-germane III/35c4 2.2:1284 
35624 C12H12MoO4 
316.16 
C 
Mo 
C O 
O C12H12MoO4 III/35c4 2.2:1285 
C 
C O 
O 
35625 C12H12N2 
184.24 
525-41-7 N 
NH 
CH3 
Harmalane; 
1-Methyl-3,4-dihydro--carboline; 
1-Methyl-4,9-dihydro-3H--carboline 
III/35b 3.2:1425 
35626 
184.24 
C12H12N2 
NNH 
1,2,3,4-Tetrahydro-[1,10]phenanthroline III/35b 3.2:1426 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35627 C12H12N2 
184.24 
N 
NH 
1,4,5,6-Tetrahydro-1,2-diaza-
benzo[e]azulene 
III/35c2 2.2:1386 
35628 C12H12N2O 
200.24 
3-((Z)-1-Methyl-3-oxo-but-1-enylamino)-
benzonitrile 
III/35e 2.2.1:1441 
O NH CN 
H3C CH3 
35629 C12H12N2O 
200.24 H3C 
O 
CH3 
NH CN 
4-((Z)-1-Methyl-3-oxo-but-1-enylamino)-
benzonitrile 
III/35e 2.2.1:1442 
35630 C12H12N2O 
200.24 
O 1-Benzyl-5-imino-4-methyl-1,5-dihydro-
pyrrol-2-one 
III/35c2 2.2:1387 
Ph N 
HN CH3 
35631 C12H12N2O 
200.24 
Ph 
O 
N NH 
Pyrrole-1-carboxylic acid benzylamide III/35c2 2.2:1391 
35632 C12H12N2O 
200.24 H3C 
O 3,6-Dimethyl-1-phenyl-1H-pyridazin-4-one III/35c2 2.2:1390 
N 
CH3N 
Ph 
35633 C12H12N2O 
200.24 
CH3 
O 
N 
N 
CH3 
(R,S)-3-Quinoxalin-2-yl-butan-2-one III/35c2 2.2:1389 
+ 
ON 
CH3 
N CH3 
35634 C12H12N2O 
200.24 O 
CH3 
N 
NH 
1-(3,5-Dihydro-2H-pyrrolo[2,3-f]indol-1-yl)-
ethanone 
III/35c2 2.2:1388 
35635 C12H12N2O2 
216.24 H3C 
O 
O 
Ph 
N N H3C 
O 
O 
Ph 
N N+ 
(R,S)-2,5-Dimethyl-2-phenylazo-furan-3-
one 
III/35c2 2.2:1392 
35636 C12H12N2O2 
216.24 
CH3 O 3-Methoxy-1-methyl-8-oxo-5,6,7,8-
tetrahydro-isoquinoline-4-carbonitrile 
III/35c2 2.2:1393 
N 
H3C 
O 
CN 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35637 C12H12N2O2S 
248.3 
Ph 
O 
N N 
S 
O 
CH3 
4-(5-Phenyl-[1,3,4]oxadiazol-2-ylsulfanyl)-
butan-2-one 
III/35c2 2.2:1394 
35638 C12H12N2O2S 
248.3 
O 
O 
S 
4-Methanesulfonyl-1-methyl-1H-
pyrazolo[1,5-a]indole 
III/35c2 2.2:1395 
NN 
CH3 
35639 C12H12N2O3 
232.24 O 
O 
O 
3-Oxo-1-phenyl-2,3-dihydro-1H-pyrazole-4-
carboxylic acid ethyl ester 
III/35c2 2.2:1398 
H5C2 
NH 
N 
Ph 
35640 C12H12N2O3 
232.24 
O 
NH NO2 
3-(3-Nitro-phenylamino)-cyclohex-2-enone III/35e 2.2.1:1443; 
III/35e 2.2.3:3630 
35641 C12H12N2O3 
232.24 
O 
NH 
NO2 
3-(4-Nitro-phenylamino)-cyclohex-2-enone III/35e 2.2.1:1444; 
III/35e 2.2.3:3631 
35642 C12H12N2O3 
232.24 
H3C 
N 
O O CH3 4-Methoxy-2-(6-methoxy-pyrimidin-4-yl)phenol 
III/35e 2.2.2:3018 
N 
HO 
35643 C12H12N2O3 
232.24 
50-06-6 
O 
NH 
O 
Ph 
5-Ethyl-5-phenyl-pyrimidine-2,4,6-trione; 
5-Ethyl-5-phenylbarbituric acid 
III/35b 3.2:1427 
NH C2H5 
O 
35644 C12H12N2O3 
232.24 
O 
CH3 7-Methyl-2-oxo-1-(2-oxo-propyl)-1,2-
dihydro-pyrrolo[1,2-a]pyrimidine-6-
carbaldehyde 
III/35c2 2.2:1397 
O N 
CH3N 
O 
35645 C12H12N2O3 
232.24 
OH 
NOH 
4-Hydroxy-3-{1-[hydroxyimino]-ethyl}-1methyl-
1H-quinolin-2-one 
III/35c2 2.2:1396 
CH3 
ON 
CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35646 C12H12N2O4 
248.24 
O 
NH 
2-(2,4-Dioxo-4H-benzo[e][1,3]oxazin-3-yl)-
N-ethyl-acetamide 
III/35c2 2.2:1399 
C2H5N 
O 
OO 
35647 C12H12N2S 
216.3 
HN NH 
Ph 
S 
Ph 
C12H12N2S III/35b 3.2:1428 
35648 C12H12N2S2 
248.37 
C12H12N2S2 III/35c2 2.2:1400 
S 
SN 
N 
35649 C12H12N3O2PS2 
325.35 S 
NH 
S 
5,5-Diphenoxy-4H-5.5-
[1,3,2,4,6,5]dithiatriazaphosphinine 
III/35a 3.2:1040 
N NH 
P 
PhO OPh 
35650 C12H12N4 
212.25 
CH3 
CN 
N 
N 
Ph NH 
5-Benzylamino-3-methyl-3H-imidazole-4-
carbonitrile 
III/35c2 2.2:1401 
35651 C12H12N4O 
228.25 
C12H12N4O III/35b 3.2:1429 
NH NH NH 
N Ph 
O 
35652 C12H12N4O 
228.25 
OH2N 3-Benzylamino-pyrazine-2-carboxylic acid 
amide 
III/35c2 2.2:1402 
Ph NH 
N 
N 
35653 C12H12N4O 
228.25 
CH3 
O 
NN 
4-Ethyl-1-methyl-1,4-dihydro-imidazo[4,5-
b]quinoxalin-2-one 
III/35c2 2.2:1403 
NN 
C2H5 
35654 C12H12N4O3 
260.25 
O 
Ph 
NH 
NO2 
H3C 
NHN 
5-Methyl-4-nitro-2H-pyrazole-3-carboxylic 
acid benzylamide 
III/35c2 2.2:1404 
35655 C12H12N4O4 
276.25 NH 
NO2 Ph 
O 
5-Methoxy-4-nitro-2H-pyrazole-3-carboxylic 
acid benzylamide 
III/35c2 2.2:1405 
H3C 
NH O 
N 
35656 C12H12O 
172.22 
(E/Z) 
Ph 
O 
2-[1-Phenyl-methylidene]-cyclopentanone III/35e 2.2.1:1445 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35657 C12H12O 
172.22 
10345-87-6 
O Ph 2-Cyclohexen-1-one, 3-phenyl-; 
3-Phenyl-cyclohex-2-enone; 
3-Phenylcyclohex-2-en-1-one 
III/35e 2.2.1:1404 
35658 C12H12O 
172.22 
24821-54-3 
O 
CH3 
CH3 
4-Methoxy-1-methylnaphthalene; 
1-Methoxy-4-methyl-naphthalene; 
Methyl-(4-methyl-(1)naphthyl)-ether 
III/35e 2.2.2:3019 
35659 C12H12OS 
204.29 
C2H5 
O 
S 
Ph 
2-Ethoxy-4-phenyl-thiophene III/35c2 2.2:1407 
35660 C12H12OS 
204.29 O 
CH3 1-Methoxy-4-methylsulfanyl-naphthalene; 
Methyl-(4-methoxy-1-naphthyl)-sulfid 
III/35e 2.2.2:3020 
95332-87-9 
S 
H3C 
35661 C12H12OS 
204.29 CH3 
O 
S 
4-Eth-(E)-ylidene-3,4-dihydro-2H-
benzo[b]thiepin-5-one 
III/35c2 2.2:1406 
35662 C12H12O2 
188.22 
36150-58-0 Ph 
O 
O 
+ Ph 
O 
O 2-Benzoyl-cyclopentanone; 
(R,S)-2-Benzoyl-cyclopentanone 
III/35e 2.2.1:1446 
35663 C12H12O2 
188.22 
CH3O 
Ph 
O 
Ph+ 
CH3 (R,S)-2,4-Dimethyl-5-phenyl-furan-3-one III/35c2 2.2:1410 
O O 
H3C H3C 
35664 C12H12O2 
188.22 O 
(S)-5-Ethyl-5-phenyl-5H-furan-2-one III/35c2 2.2:1411 
Ph O 
H5C2 
35665 C12H12O2 
188.22 
CH3 
O 
C2H5 
O 
1-(7-Ethyl-benzofuran-2-yl)-ethanone III/35c2 2.2:1408 
35666 C12H12O2 
188.22 O 
CH3 1,4-Dimethoxy-naphthalene; 
1,4-Dimethoxynaphthalene; 
III/35e 2.2.2:3021 
10075-62-4 Naphthalene, 1,4-dimethoxy-
O 
H3C 
35667 C12H12O2 
188.22 
O O 
CH3 
O 
+ 
O 
CH3 
(R,S)-2-Acetyl-3,4-dihydro-2H-naphthalen-
1-one 
III/35e 2.2.1:1447 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35668 C12H12O2 
188.22 
C3H7 3-Propyl-isochromen-1-one III/35c2 2.2:1409 
O 
O 
35669 C12H12O2S 
220.29 
O 
C2H5 
O 
S 
Naphthalene-1-sulfinic acid ethyl ester III/35e 2.2.5:4307 
35670 C12H12O2S 
220.29 
O 
O 
S C2H5 
Naphthalene-2-sulfinic acid ethyl ester III/35e 2.2.5:4308 
35671 C12H12O3 
204.22 
C3H7 
COOH 
3-Propyl-benzofuran-2-carboxylic acid III/35c2 2.2:1412 
O 
35672 C12H12O3 
204.22 
O 4-tert-Butyl-isobenzofuran-1,3-dione III/35e 2.2.1:1448 
O 
O 
35673 C12H12O3 
204.22 
137059-99-5 
OH 
CH3 
OH 
OO 
+ 
3-(2-Hydroxy-propyl)-chromen-2-one; 
3-((R,S)-2-Hydroxy-propyl)-chromen-2-one 
III/35c2 2.2:1413 
CH3OO 
35674 C12H12O3 
204.22 
OH O OH O (R,S)-7-Hydroxy-3,3a,4,5-tetrahydro-2H-
benzo[de]chromen-6-one 
III/35c2 2.2:1414 
+ 
O O 
35675 C12H12O4Si 
248.31 
HC CH Tetrakis(prop-2-inyloxy)silane III/35e 2.2.2:3022 
O O 
Si 
OO 
HC CH 
35676 C12H12O6W 
436.06 OO 
CH2 C12H12O6W III/35c4 2.2:1286 
C C 
CO W 
C C O CH3 
O O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35677 C12H12Pb 
363.41 
CH3H3C Tetrakis-(1-propinyl)-plumbane III/35c4 2.4:3376 
Pb 
H3C CH3 
35678 C12H12Si 
184.31 
775-12-2 
Ph Ph 
SiH2 Diphenylsilan; 
Diphenylsilane; 
Silane, diphenyl-; 
TSL 8224 
III/35c4 2.2:1287 
35679 C12H12Sn 
274.91 
CH3H3C Tetrakis-(1-propinyl)-stannane III/35c4 2.4:3377 
Sn 
H3C CH3 
35680 C12H12Sn 
274.91 Ph Ph 
SnH2 Diphenyl-stannane III/35c4 2.2:1288 
35681 
320.26 
C12H13BN4S3 
B 
N N C SCS C12H13BN4S3 III/35a 2.2:1034 
Ph N N 
C 
S 
35682 C12H13BrO2 
269.13 
Br 6-Bromo-7-phenyl-oxepan-2-one III/35e 2.2.1:1449 
Ph 
O 
O 
35683 C12H13BrO2 
269.13 
CH3 6-Bromo-5-methoxy-4-((E)-propenyl)-2,3-
dihydro-benzofuran 
III/35c2 2.2:1415 
O 
H3C 
Br O 
35684 
320.76 
C12H13ClCrO3Si 
Cr 
Si 
ClCO 
C12H13ClCrO3Si III/35c4 2.2:1289 
O 
C 
OC 
35685 C12H13ClN4 
248.71 NH2 
Cl 5-(4-Chloro-phenyl)-6-ethyl-pyrimidine-2,4-
diamine; 
III/35b 3.2:1430 
58-14-0 
N 
2,4-Diamino-5-(4-chlorophenyl)-6-
ethylpyrimidine; 
N NH2H5C2 
Pyrimidine, 2,4-diamino-5-(p-chlorophenyl)-
6-ethyl-; 
2,4-Pyrimidinediamine, 5-(4-chlorophenyl)-
6-ethyl- 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35686 C12H13ClN4O 
264.71 
O 2-(4-Chloro-benzyl)-5-(N-methyl-
hydrazino)-2H-pyridazin-3-one 
III/35c2 2.2:1416 
N 
NH2 
N 
N 
Cl 
CH3 
35687 C12H13ClO3 
240.68 
HO 
C2H5 
O 
O 
Cl 
HO 
C2H5 
O 
O 
Cl+ 
(R,S)-6-Chloro-3-ethyl-3-hydroxymethyl-
chroman-4-one 
III/35c2 2.2:1417 
35688 C12H13CrNO4 
287.23 
Cr(-) 
N(+) CH2 
C 
O 
C 
O 
C O 
C 
OH3C 
H2C 
C12H13CrNO4 III/35c4 2.2:1290 
35689 C12H13CrNO5 
303.23 
Cr 
C 
O 
CO 
O 
C N 
C12H13CrNO5 III/35c4 2.2:1291 
C C CH3 
O O 
35690 C12H13CrNO5 
303.23 
Cr 
C 
O 
CO 
O 
C N 
C12H13CrNO5 III/35c4 2.2:1292 
C C 
O O 
35691 C12H13CrO3 
257.23 (-) 
Tetramethylcyclopentadienyl-tricarbonyl-
chromium-
III/35e 2.2.7:4608 
OO 
CC 
C 
Cr 
O 
35692 C12H13F 
176.23 
Ph 
F 
Ph 
F 
+ 
((R,S)-2-Fluoro-cyclohex-2-enyl)-benzene III/35b 2.2:1241 
35693 C12H13FO 
192.23 
Ph 
O 
F 
(E)-1-Fluoro-6-phenyl-hex-5-en-2-one III/35b 2.2:1242 
35694 C12H13FO 
192.23 Ph CH3 
F (E)-(R,S)-3-Fluoro-6-phenyl-hex-5-en-2-
one 
III/35b 2.2:1243 
O 
+ 
F 
Ph CH3 
O 
35695 C12H13FO4 
240.23 Ph 
C2H5 
O 
O 
COOHF 
Ph 
C2H5 
O 
O 
COOHF 
+ 
(R,S)-2-Benzyl-2-fluoro-malonic acid 
monoethyl ester 
III/35b 2.2:1245 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35696 C12H13FO5S 
288.29 Ph 
S 
F O 
O 
O 
C2H5 
O O 
Ph 
S 
F O 
O 
O 
C2H5 
O O 
+ 
(R,S)-2-Benzenesulfonyl-2-fluoro-3-oxo-
butyric acid ethyl ester 
III/35b 2.2:1246 
H3C H3C 
35697 C12H13F3 
214.23 
H3C 
CF3 
H3C 
CF3 
+ 
(R,S)-7-Methyl-1-trifluoromethyl-1,2,3,4-
tetrahydro-naphthalene 
III/35b 2.2:1247 
35698 C12H13F3N2 
242.24 
Ph N CF3 
H3C CN 
Ph N CF3 
H3C CN 
+ 
(R,S)-2-[Benzyl-(2,2,2-trifluoro-ethyl)-
amino]-propionitrile 
III/35b 2.2:1249 
35699 C12H13F3O 
230.23 
Ph 
O 
CF3 
6,6,6-Trifluoro-1-phenyl-hexan-3-one III/35b 2.2:1250 
35700 C12H13F3O 
230.23 
CH3 1-Methyl-4-[1-(2,2,2-trifluoro-ethoxymethyl)-
vinyl]-benzene 
III/35b 2.2:1251 
OF3C 
CH2 
35701 C12H13F3O 
230.23 
Ph CF3 
O 
C2H5 
((Z)-3-Ethoxy-4,4,4-trifluoro-but-2-enyl)-
benzene 
III/35b 2.2:1252 
35702 C12H13F3O 
230.23 
73471-97-3 
O 
CF3 
1-(4-tert-Butyl-phenyl)-2,2,2-trifluoro-
ethanone 
III/35e 2.2.1:1450 
35703 C12H13F3O2 
246.23 
CH2 
OF3C 
O 
CH3 
1-Methoxy-4-[1-(2,2,2-trifluoro-
ethoxymethyl)-vinyl]-benzene 
III/35b 2.2:1254 
35704 C12H13F3O2 
246.23 Ph 
C2H5O 
CF3 
O 
Ph 
C2H5O 
CF3 
O 
+ 
(R,S)-2-Benzyl-3,3,3-trifluoro-propionic acid 
ethyl ester 
III/35b 2.2:1256 
35705 C12H13F3O2 
246.23 
Ph O 
O 
CF3 (S)-2-(3-Phenyl-propoxy)-2-trifluoromethyl-
oxirane 
III/35b 2.2:1255 
35706 C12H13F3O3 
262.23 
Ph O 
CF3 3,3,3-Trifluoro-2-(methoxy-phenyl-methyl)propionic 
acid methyl ester 
III/35b 2.2:1257 
CH3 
OO 
H3C 
35707 C12H13FeO3 
261.07 
Tetramethylcyclopentadienyl-tricarbonyl-
iron+ 
III/35e 2.2.7:4635 
(-) 
Fe(2+) 
C 
C O 
O C 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35708 C12H13IN2O 
328.15 
H3C N(+) 
I(-) 
CH3 
O 
N 
1,1'-Dimethyl-2'-oxo-1',2'-dihydro-
[4,4']bipyridinyl-1-ium iodide 
III/35c2 2.2:1418 
35709 C12H13IN2O2 
344.15 CN 
C2H5H3C (E)-2-Cyano-3-(3-ethyl-5-iodo-4-methyl-1H-
pyrrol-2-yl)-acrylic acid methyl ester 
III/35c2 2.2:1419 
O 
I NH CH3 
O 
35710 C12H13MnO4 
276.17 
(delocalized system) 
CH3 
C12H13MnO4 III/35c4 2.2:1293 
CH(-) OH 
Mn(+) C O 
O C 
C 
O 
35711 C12H13MoO3 
301.17 
O 
C 
O 
C 
C12H13MoO3 III/35e 2.2.7:4739 
Mo(+) 
C 
(-)O 
35712 C12H13N 
171.24 H5C2 PhNH 2-Ethyl-5-phenyl-1H-pyrrole III/35c2 2.2:1422 
35713 C12H13N 
171.24 
C2H5 
PhN 
1-Ethyl-2-phenyl-1H-pyrrole III/35c2 2.2:1424 
35714 C12H13N 
171.24 
C2H5 
CH3 
4-Ethyl-3-methyl-isoquinoline III/35c2 2.2:1421 
N 
35715 C12H13N 
171.24 
CH3 2-Ethyl-4-methyl-quinoline; 
Lepidine, 2-ethyl-; 
III/35c2 2.2:1423 
33357-44-7 Quinoline, 2-ethyl-4-methyl-
C2H5N 
35716 C12H13N 
171.24 
8-Isopropyl-quinoline III/35c2 2.2:1420 
6457-30-3 
N 
CH3H3C 
35717 C12H13NO 
187.24 
Ph 
NH 
O 
2-[1-Phenylamino-meth-(Z)-ylidene]-
cyclopentanone 
III/35e 2.2.1:1451 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35718 C12H13NO 
187.24 
O 
Ph 
NH 
2-[1-Phenylamino-meth-(E)-ylidene]-
cyclopentanone 
III/35e 2.2.1:1452 
35719 C12H13NO 
187.24 
O NH 
Ph 
3-Phenylamino-cyclohex-2-enone III/35e 2.2.1:1453 
35720 C12H13NO 
187.24 
O 
N CH3 
H3C 
2-[1-Dimethylamino-meth-(E)-ylidene]-
indan-1-one 
III/35e 2.2.1:1454 
35721 C12H13NO 
187.24 NH 
CH3 1-[1-Methylamino-meth-(Z)-ylidene]-3,4-
dihydro-1H-naphthalen-2-one 
III/35e 2.2.1:1455 
O 
35722 C12H13NO 
187.24 
O 
CH3 6-Methoxy-1,4-dimethyl-isoquinoline III/35c2 2.2:1426 
H3C 
N 
CH3 
35723 C12H13NO 
187.24 
2-Ethyl-8-methoxy-quinoline III/35c2 2.2:1428 
C2H5N 
O 
CH3 
35724 C12H13NO 
187.24 
OH 
C2H5N + N 
OH 
C2H5 
(R,S)-1-Quinolin-2-yl-propan-1-ol III/35c2 2.2:1427 
35725 C12H13NO 
187.24 
H3C 5,8-Dimethyl-1,3-dihydro-benzo[b]azepin-2-
one 
III/35c2 2.2:1425 
H3C NH 
O 
35726 C12H13NOS 
219.3 
Ph 
CH3 
S 
N Ph+ 
S 
N 
CH3 
(R,S)-1-Isopropyl-3-phenyl-4-thioxo-
azetidin-2-one 
III/35c2 2.2:1430 
CH3 CH3 
O O 
35727 C12H13NOS 
219.3 
SO 2-Phenyl-1-(2-thioxo-pyrrolidin-1-yl)-
ethanone 
III/35c2 2.2:1429 
Ph 
N 
35728 C12H13NO2 
203.24 
O 
Ph 
3-Phenylaminomethylene-pentane-2,4-
dione 
III/35e 2.2.1:1456 
H3C NH 
H3C O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35729 C12H13NO2 
203.24 
H3C 
N 
CH3 
O 
O 
2-(4-Dimethylamino-benzylidene)-
malonaldehyde 
III/35e 2.2.1:1457 
35730 C12H13NO2 
203.24 
O 
O 
NH Ph 
3-[1-Benzylamino-meth-(E)-ylidene]-
dihydro-furan-2-one 
III/35e 2.2.1:1458 
35731 C12H13NO2 
203.24 CH3 
O 
ON 
Ph 
CH3 
O 
ON 
Ph 
+ 
(R,S)-2-Phenyl-4,5-dihydro-3H-pyrrole-3-
carboxylic acid methyl ester 
III/35c2 2.2:1432 
35732 C12H13NO2 
203.24 
O 1-Benzyl-piperidine-2,4-dione III/35c2 2.2:1431 
NPh 
O 
35733 C12H13NO2 
203.24 
O N-Benzoyl-4-piperidone; 
1-Benzoyl-piperidin-4-one; 
III/35e 2.2.1:1459 
24686-78-0 PhN 4-Piperidinone, 1-benzoyl- 
O 
35734 C12H13NO2 
203.24 
OH 
O 
N CH3 
H3C 
2-[1-Dimethylamino-meth-(E)-ylidene]-7-
hydroxy-indan-1-one 
III/35e 2.2.1:1460 
35735 C12H13NO2 
203.24 
O 
(3,3-Dimethyl-2-oxo-2,3-dihydro-indol-1-yl)-
acetaldehyde 
III/35c2 2.2:1434 
O 
N 
35736 C12H13NO2 
203.24 
O C2H5 
O 
NH 
(1H-Indol-2-yl)-acetic acid ethyl ester III/35c2 2.2:1435 
35737 C12H13NO2 
203.24 
O 2-tert-Butyl-isoindole-1,3-dione III/35e 2.2.1:1461 
N 
O 
35738 C12H13NO2 
203.24 O 
4-tert-Butyl-isoindole-1,3-dione III/35e 2.2.1:1462 
NH 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35739 C12H13NO2 
203.24 
CH3 
OH 
N CH3 
OH 
N 
+ 
(R,S)-3-Cyclopropyl-3-hydroxy-2-methyl-
2,3-dihydro-isoindol-1-one 
III/35c2 2.2:1433 
O O 
35740 C12H13NO2 
203.24 
CH3 7-Dimethylamino-4-methyl-chromen-2-one III/35e 2.2.1:1463 
ON 
H3C 
O 
CH3 
35741 C12H13NO2S 
235.3 
O 
PhO 
S 
NH 
5,6-Dihydro-4H-[1,4]thiazine-2-carboxylic 
acid benzyl ester 
III/35c2 2.2:1436 
35742 C12H13NO2S 
235.3 
NH2 
O 
C2H5 
O 
S 
2-Amino-4H-thiochromene-3-carboxylic 
acid ethyl ester 
III/35c2 2.2:1437 
35743 C12H13NO3 
219.24 
CH3 
H3C 
H3C 
O 
O 
N 
O 
3-(3,4-Dimethoxy-phenyl)-5-methyl-
isoxazole 
III/35c2 2.2:1438 
35744 C12H13NO3 
219.24 
CH3 
O 
O 
NC 
CH3 
O 
6-Cyano-4-methyl-4,5,6,7-tetrahydro-
benzofuran-2-carboxylic acid methyl ester 
III/35c2 2.2:1442 
35745 C12H13NO3 
219.24 O 
NH 
O 
NH+ 
(R,S)-4,4-Dimethyl-3-oxo-1,2,3,4-
tetrahydro-isoquinoline-1-carboxylic acid 
III/35c2 2.2:1440 
COOH COOH 
35746 C12H13NO3 
219.24 
O 6-Acetyl-4-ethyl-4H-benzo[1,4]oxazin-3-one III/35c2 2.2:1439 
H3C 
ON 
C2H5O 
35747 C12H13NO3 
219.24 
CH3 
O 
CH3 
O 
(R,S)-8-Acetyl-1,5-dimethyl-1,5-dihydro-
pyrano[4,3-b]pyridin-7-one 
III/35c2 2.2:1441 
+ 
ON ON 
CH3 CH3 
O CH3 O CH3 
35748 C12H13NO3S 
251.3 O 
C2H5 
O 
O 
N 
S 
(3-Oxo-2,3-dihydro-benzo[1,4]thiazin-4-yl)acetic 
acid ethyl ester 
III/35c2 2.2:1443 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35749 C12H13NO3S 
251.3 
CH3 
OS 
2-(3-Oxo-3,4-dihydro-2H-benzo[1,4]thiazin-
2-yl)-propionic acid methyl ester 
III/35c2 2.2:1444 
CH3 
O 
ONH 
35750 C12H13NO4 
235.24 
H3C 
O 
O 
O 
CH3 
(Z)-2-Phenylamino-but-2-enedioic acid 
dimethyl ester 
III/35e 2.2.1:1464 
O NH 
Ph 
35751 C12H13NSi 
199.32 
Ph 
N 
H3Si 
Ph Diphenyl-silanyl-amine III/35c4 2.2:1294 
35752 C12H13N3 
199.25 
(E/Z) 
N 
N 
Ph 
N 
1-(-4-Phenyl-but-3-enyl)-1H-[1,2,4]triazole III/35c2 2.2:1445 
35753 C12H13N3O 
215.25 
CH2 3-Allyl-2-phenylamino-3,5-dihydro-imidazol-
4-one 
III/35c2 2.2:1449 
O N 
NH 
PhN 
35754 C12H13N3O 
215.25 
NC 
O 
NN 
[3-(4,4-Dimethyl-4,5-dihydro-oxazol-2-yl)-
pyridin-4-yl]-acetonitrile 
III/35c2 2.2:1448 
35755 C12H13N3O 
215.25 
H2N 
CH3O 
Ph 
N 
4-Methoxy-6-methyl-5-phenyl-pyrimidin-2-
ylamine 
III/35c2 2.2:1446 
N 
CH3 
35756 C12H13N3O 
215.25 
Ph 
ON 
NH 
NH 
3a-Methyl-3-phenyl-3a,4,6,6a-tetrahydro-
1H-pyrrolo[3,2-c]pyrazol-5-one 
III/35c2 2.2:1447 
35757 C12H13N3O2 
231.25 
NH2 
NOH 
3-(1-Hydrazono-ethyl)-4-hydroxy-1-methyl-
1H-quinolin-2-one 
III/35c2 2.2:1450 
CH3 
ON 
CH3 
35758 C12H13N3O3 
247.25 
N 
3-Nitro-7,8,9,10-tetrahydro-6H-
benzo[4,5]imidazo[1,2-a]azepine 5-oxide 
III/35c2 2.2:1451 
O2N N(+) 
O(-) 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35759 C12H13N3S 
231.32 
Ph 
H3C 
N 
3-Methylsulfanyl-1-((E)-1-phenyl-propenyl)-
1H-[1,2,4]triazole 
III/35c2 2.2:1453 
N 
N 
CH3 
S 
35760 C12H13N3S 
231.32 
C2H5S 
N 
N 
N 
C2H5S 
N 
N 
N+ 
(R,S)-5-Ethylsulfanyl-1,10b-dihydro-
pyrazolo[1,5-c]quinazoline 
III/35c2 2.2:1452 
35761 C12H13N5 
227.26 
(E/Z) 
NH2 
C12H13N5 III/35b 3.2:1432 
N 
H2N 
Ph 
N NH2 
35762 C12H13O 
173.23 
C2H5 3-Ethyl-1-methyl-isochromenylium III/35e 2.2.1:1465 
O(+) 
CH3 
35763 C12H13O3W 
389.07 
O 
C 
O 
C 
Tetramethylcyclopentadienyl-tricarbonyl-
tungsten -
III/35e 2.2.7:4957 
W 
C 
(-)O 
35764 C12H14B2N8 
291.92 
N N NN 
C12H14B2N8 III/35a 2.2:1035 
B 
N N 
N N 
BH2 
35765 C12H14B12Cl6 
500.69 
[1,7-(m,p,m-Cl3C6H2)2B12H10]2-III/35a 2.2:1036 
35766 C12H14BrNOS 
300.21 
Br(-) 
O 
CH3 
CH3 
N(+) 
S 
2-Methyl-3-(3-oxo-butyl)-benzothiazol-3-
ium bromide 
III/35c2 2.2:1454 
35767 C12H14ClN3O 
251.71 
CH3 N-(6-Chloro-1H-benzo[d][1,2]oxazin-4-yl)-
N'-isopropylidene-N-methyl-hydrazine 
III/35c2 2.2:1455 
CH3H3C N 
N 
Cl 
N 
O 
35768 C12H14Cl2SiTi 
305.1 
(-) (-) 
Ti(2+) 
Cl Cl 
Si 
C12H14Cl2SiTi III/35c4 2.2:1296 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35769 C12H14Cl2Ti 
277.01 
(-) (-) 
Ti(2+) 
Cl Cl Methylcyclopentadienyl-titanium dichloride III/35c4 2.2:1295 
35770 C12H14Cl2Zr 
320.37 Zr(2+) 
Cl Cl Methylcyclopentadienyl-zirconium 
dichloride 
III/35c4 2.2:1297 
(-) (-) 
35771 C12H14CrO3Si 
286.32 Si 
Cr C O 
C12H14CrO3Si III/35c4 2.2:1298 
C 
O C 
O 
35772 C12H14FNO 
207.24 
F 
CH3 
N-[2-((Z)-1-Fluoro-propenyl)-phenyl]-
propionamide 
III/35b 2.2:1258 
NH 
OH5C2 
35773 C12H14F2O 
212.24 Ph 
OH 
CH2 
F FCH3 
4,4-Difluoro-2-phenyl-hex-5-en-3-ol III/35b 2.2:1259 
35774 C12H14F2O3Se 
323.19 Ph 
SeO 
F F 
OH3C 
O 
Acetic acid 3-(difluoro-phenylselanyl-
methoxy)-propyl ester 
III/35b 2.2:1261 
35775 C12H14F2O3Se 
323.19 
Ph 
SeO 
F F 
CH3 
O 
O 
H3C 
Acetic acid (R,S)-2-(difluoro-phenylselanyl-
methoxy)-1-methyl-ethyl ester 
III/35b 2.2:1260 
+ 
Ph 
SeO 
F F 
CH3 
O 
O 
H3C 
35776 C12H14F3NO3 
277.24 
OO 
H5C2 
O 
CH3 
(R,S)-3,3,3-Trifluoro-2-(4-methoxy-
phenylamino)-propionic acid ethyl ester 
III/35b 2.2:1264 
NHF3C 
+ 
OO 
H5C2 
O 
CH3 
NHF3C 
35777 C12H14F3NO3S 
309.31 
O 
N 
CH3 
H3C 
(3R,4R,5S)-4-Benzenesulfonyl-2,3-
dimethyl-5-trifluoromethyl-isoxazolidine 
III/35b 2.2:1265 
CF3SPh 
O 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35778 C12H14FeS2 
278.21 (-) 
S 
CH3 
C12H14FeS2 III/35c4 2.2:1299 
Fe(2+) 
S 
(-) CH3 
35779 C12H14Ge2 
303.52 Ph 
GeH2 
GeH2 
Ph 1,2-Diphenyl-digermane III/35c4 2.2:1300 
35780 C12H14Ge2O 
319.52 Ph 
GeH2 
O 
GeH2 
Ph 
C12H14Ge2O III/35c4 2.2:1301 
35781 C12H14N 
172.25 NH(+) 
CH3H3C Dimethyl-naphthalen-1-yl-ammonium III/35b 3.2:1433 
35782 C12H14NPS 
235.28 
SN 
P Ph 
3-tert-Butyl-5-phenyl-
[1,2,4]thiazaphosphole 
III/35a 3.2:1045 
35783 C12H14N2 
186.25 
H3C PhN 
N 
3-Methyl-1-phenethyl-1H-pyrazole III/35c2 2.2:1458 
35784 C12H14N2 
186.25 
H3C 
N 
1,5-Dimethyl-1,2,3,5-tetrahydro-pyrrolo[2,3-
f]indole 
III/35c2 2.2:1457 
N 
CH3 
35785 C12H14N2 
186.25 
2506-10-7 NH NH 
CH3 
NH NH 
CH3 
+ 
(R,S)-1-Methyl-2,3,4,9-tetrahydro-1H--
carboline; 
1H-Pyrido[3,4-b]indole, 2,3,4,9-tetrahydro-
1-methyl-; 
III/35b 3.2:1434 
2,3,4,9-Tetrahydro-1-methyl-1H-pyrido[3,4-
b]indole; 
Tetrahydroharman 
35786 C12H14N2 
186.25 
N N 
+ 
(R,S)-3a-Methyl-3,3a,4,5-tetrahydro-2H-
pyrrolo[3,2-c]quinoline 
III/35c2 2.2:1456 
NH NH 
35787 C12H14N2NaO7V 
372.18 
N 
V(-) 
NC 
H3C O 
OH 
O 
OO 
Na(+) 
CH3 
CH3 
OHO 
C12H14N2NaO7V III/35c4 2.2:1302 
35788 C12H14N2O 
202.25 
N(+) 
O 
N(-) 
1-(4-tert-Butyl-phenyl)-2-diazo-ethanone III/35e 2.2.1:1466 
35789 C12H14N2O 
202.25 
Ph 3-[1-Amino-1-phenyl-meth-(Z)-ylidene]-1-
methyl-pyrrolidin-2-one 
III/35c2 2.2:1460 
N 
H3C 
NH2 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35790 C12H14N2O 
202.25 
CH3 
CH3 
H3C 
N 
ON 
5-Isopropyl-3-p-tolyl-[1,2,4]oxadiazole III/35c2 2.2:1461 
35791 C12H14N2O 
202.25 
1016-47-3 
O 
CH3NH 
NH 
Acetamide, N-[2-(1H-indol-3-yl)ethyl]-; 
Acetamide, N-(2-indol-3-ylethyl)-; 
Acetotryptamide; 
N-[2-(1H-Indol-3-yl)-ethyl]-acetamide 
III/35c2 2.2:1459 
35792 C12H14N2O 
202.25 O 
CN 3-Ethoxy-5,6,7,8-tetrahydro-isoquinoline-4-
carbonitrile 
III/35c2 2.2:1462 
C2H5 
N 
35793 C12H14N2OS 
234.32 H3C 
CH3 
O 
S 
N 
4-(4-Methoxy-benzylsulfanyl)-1-methyl-1H-
imidazole 
III/35c2 2.2:1463 
N 
35794 C12H14N2OS2 
266.38 
See appendix No: 35794 1-((R,S)-5-Methylsulfanyl-2-p-tolyl-
[1,3,4]thiadiazol-3-yl)-ethanone 
III/35c2 2.2:1464 
35795 C12H14N2O2 
218.25 
H5C2 
CH3 
O 
O 
CN 
H3C 
NH 
(E)-2-Cyano-3-(3-ethyl-4-methyl-1H-pyrrol-
2-yl)-acrylic acid methyl ester 
III/35c2 2.2:1466 
35796 C12H14N2O2 
218.25 O 
Ph (3R,4R)-3-Methyl-4-phenyl-3,4-dihydro-2H-
pyrazole-3-carboxylic acid methyl ester 
III/35c2 2.2:1465 
CH3ONHN 
35797 C12H14N2O2 
218.25 
CH3H3C C12H14N2O2 III/35c2 2.2:1468 
N(+) 
OC(-) 
C2H5NC 
O 
35798 C12H14N2O2 
218.25 
H3C 
O 
C2H5 
O 
N 
N 
(5-Methyl-imidazo[1,2-a]pyridin-2-yl)-acetic 
acid ethyl ester 
III/35c2 2.2:1470 
35799 C12H14N2O2 
218.25 CH3 
OH 3-Dimethylaminomethyl-4-hydroxy-1H-
quinolin-2-one 
III/35c2 2.2:1467 
N 
CH3 
ONH 
35800 C12H14N2O2 
218.25 C2H5 
ON 2,3-Diethoxyquinoxaline III/35c2 2.2:1469 
57050-66-5 C2H5 
ON 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35801 C12H14N2O2S 
250.32 
O CH3 
O 
CNS 
N 
(E)-3-Cyano-4,4-dimethyl-2-thiazol-2-yl-
pent-2-enoic acid methyl ester 
III/35c2 2.2:1471 
35802 C12H14N2O3 
234.25 
See appendix No: 35802 ((R,S)-2-Methyl-3-oxo-1,2,3,4-tetrahydro-
isoquinolin-4-yl)-carbamic acid methyl ester 
III/35c2 2.2:1472 
35803 C12H14N2O3S 
266.32 
See appendix No: 35803 (R,S)-3-Ethoxy-4-methyl-1-oxo-1-phenyl-
4H-1.6-[1,2,4]thiadiazin-5-one 
III/35c2 2.2:1473 
35804 C12H14N2O4 
250.25 
O 9-Formyl-4-oxo-1,6,7,8-tetrahydro-4H-
pyrido[1,2-a]pyrimidine-3-carboxylic acid 
III/35b 3.2:1435 
NH ethyl ester 
N O 
C2H5 
OO 
35805 C12H14N4 
214.27 
N 
NC 
N 
N 
C12H14N4 III/35b 3.2:1436 
35806 C12H14N4O2 
246.26 
O O CH3 
NH 
3-Methyl-1-(5-methyl-3-oxo-2,3-dihydro-1H-
pyrazol-4-yl)-1-phenyl-urea 
III/35c2 2.2:1475 
NH 
N 
NH 
Ph 
CH3 
35807 C12H14N4O2 
246.26 O 
(2-Ethyl-quinazolin-4-yloxy)-acetic acid 
hydrazide 
III/35c2 2.2:1474 
NH2NH 
O 
N N 
C2H5 
35808 C12H14N4O4 
278.26 
NO2Ph 
NO2 
NH 
NH 
NO2Ph 
NO2 
NH 
NH 
+ 
2-((R,S)-1,3-Dinitro-2-phenyl-propylidene)-
imidazolidine 
III/35c2 2.2:1476 
35809 C12H14O 
174.24 
H2C CH3 
O 
H3C 
Ph 
H2C CH3 
O 
H3C 
Ph 
+ 
(2R*,3S*)-2-Isopropenyl-3-methyl-2-phenyl-
oxirane 
III/35e 2.2.2:3023 
35810 C12H14O 
174.24 
H2C CH3 
O 
H3C 
Ph 
H2C CH3 
O 
H3C 
Ph 
+ 
(2S*,3S*)-2-Isopropenyl-3-methyl-2-phenyl-
oxirane 
III/35e 2.2.2:3024 
35811 C12H14O 
174.24 OCH3 3,3,7-Trimethyl-indan-1-one III/35e 2.2.1:1469 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35812 C12H14O 
174.24 
CH3 O 4,5,7-Trimethyl-indan-1-one III/35e 2.2.1:1472 
H3C 
CH3 
35813 C12H14O 
174.24 
O O (R,S)-3-Ethyl-4-methyl-indan-1-one III/35e 2.2.1:1468 
+ 
C2H5CH3 CH3 
C2H5 
35814 C12H14O 
174.24 
CH3 
O 
H3C 
CH3 
+ 
H3C 
CH3 
CH3 
O (R,S)-3,4,5-Trimethyl-indan-1-one III/35e 2.2.1:1470 
35815 C12H14O 
174.24 
CH3 
O 
CH3 
CH3 
+ 
CH3 
CH3 
CH3 
O (R,S)-3,4,7-Trimethyl-indan-1-one III/35e 2.2.1:1471 
35816 C12H14O 
174.24 
H3C 
CH3 
O 5,7-Dimethyl-3,4-dihydro-2H-naphthalen-1-
one 
III/35e 2.2.1:1474 
35817 C12H14O 
174.24 
O 
H3C 
H3C 
6,7-Dimethyl-3,4-dihydro-2H-naphthalen-1-
one 
III/35e 2.2.1:1476 
35818 C12H14O 
174.24 
OCH3 5,8-Dimethyl-3,4-dihydro-2H-naphthalen-1-
one 
III/35e 2.2.1:1475 
5037-63-8 
CH3 
35819 C12H14O 
174.24 
22531-06-2 H5C2 
O 7-Ethyl-1,2,3,4-tetrahydronaphthalin-1-one; 
7-Ethyl-3,4-dihydro-2H-naphthalen-1-one; 
III/35e 2.2.1:1473 
35820 C12H14O2 
190.24 H3C 
O 
CH3 
CH3 
O 
CH3 
1-(4-Acetyl-3,5-dimethyl-phenyl)-ethanone III/35e 2.2.1:1478 
35821 C12H14O2 
190.24 
CH3 
O 
H3C 
Ph 
O 1-(3-Methyl-2-phenyl-oxiranyl)-propan-2-
one 
III/35c2 2.2:1478 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35822 C12H14O2 
190.24 Ph 
(R,S)-6-Benzyl-tetrahydro-pyran-2-one III/35e 2.2.1:1477 
OO 
+ 
Ph 
OO 
35823 C12H14O2 
190.24 
O 4-tert-Butyl-3H-isobenzofuran-1-one III/35e 2.2.1:1479 
O 
35824 C12H14O2 
190.24 O 
7-tert-Butyl-3H-isobenzofuran-1-one III/35e 2.2.1:1480 
O 
35825 C12H14O2 
190.24 
C3H7 
O 
O + 
C3H7 
O 
O 
(R,S)-3-Propyl-isochroman-1-one III/35c2 2.2:1477 
35826 C12H14O2S2 
254.37 
O 
O 
PhS 
CH3 
S 
O 
O 
PhS 
CH3 
S 
+ 
3-((R,S)-1-Phenylsulfanyl-ethyl)-2,5-
dihydro-thiophene 1,1-dioxide 
III/35c2 2.2:1479 
35827 C12H14O3 
206.24 CH3 
CH3 
O 
O 
O 
Ph 
2,2-Dimethoxy-5-phenyl-2,3-dihydro-furan III/35c2 2.2:1480 
35828 C12H14O3 
206.24 
O 2,2-Dimethyl-7-methoxy-4-chromanone; 
7-Methoxy-2,2-dimethyl-chroman-4-one 
III/35e 2.2.1:1481 
20321-73-7 
OO 
H3C 
35829 C12H14O4 
222.24 
O 
O 
O 
H3C 
OH 5-Hydroxy-7-methoxy-2,2-dimethyl-
chroman-4-one 
III/35e 2.2.1:1482 
35830 C12H14O5W 
422.08 
W 
CH2 
O C2H5 
CO 
C 
O 
C 
O 
C 
O 
C12H14O5W III/35c4 2.2:1303 
35831 C12H14O7W 
454.07 
O 
CO 
C 
O 
C 
O 
W 
C 
O 
C 
O CH3 
O CH3 
C12H14O7W III/35c4 2.2:1304 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35832 C12H14Se 
237.2 
Se 
Ph 
(Cyclohex-1-enylselanyl)-benzene III/35c4 2.2:1305 
35833 C12H14Se 
237.2 
Se 
Ph 
Se 
Ph 
+ 
((R,S)-Cyclohex-2-enylselanyl)-benzene III/35c4 2.2:1306 
35834 C12H14Se 
237.2 
Se 
Ph 
Se 
Ph 
+ 
((R,S)-Cyclohex-3-enylselanyl)-benzene III/35c4 2.2:1307 
35835 C12H14Si 
186.32 
Ph 
SiH2C 
CH2 
CH2 
Phenyl-trivinyl-silane III/35c4 2.2:1308 
35836 C12H14Sn 
276.93 (-)(-) Sn(2+) 
Bis-(Methylcyclopentdienyl)-stannane III/35c4 2.2:1309 
35837 C12H15B3Co2 
309.55 
C12H15B3Co2 III/35a 2.2:1037 
35838 C12H15BrN2OS 
315.23 
Br(-) 
Ph 
OH2N 
N(+) 
S 
3-(2-Amino-ethyl)-3-methyl-2-oxo-4-phenyl-
2,3-dihydro-thiazol-3-ium bromide 
III/35c2 2.2:1481 
35839 C12H15BrO2 
271.15 Ph 
Br 
O 
O 
Ph 
Br 
O 
O+ 
(R,S)-Bromo-phenyl-acetic acid tert-butyl 
ester 
III/35e 2.2.1:1483 
35840 C12H15BrO6 
335.15 
O C2H5 
O 
O 5-Bromo-6-methyl-4-oxo-4H-pyran-3,3-
dicarboxylic acid diethyl ester 
III/35c2 2.2:1482 
O 
C2H5O 
H3C 
Br 
O 
35841 C12H15FO2 
210.25 
Ph 
H3C 
O O 
F 
((E)-4-Fluoro-3-methoxymethoxy-but-3-
enyl)-benzene 
III/35b 2.2:1266 
35842 C12H15FO2 
210.25 PhH5C2 O 
O 
F C2H5 
PhH5C2 O 
O 
F C2H5 
+ 
(R,S)-2-Fluoro-2-phenyl-butyric acid ethyl 
ester 
III/35b 2.2:1267 
35843 C12H15FO2 
210.25 
F 
COOH 
H3C 
CH3 
F 
COOH 
H3C 
CH3+ 
(R,S)-Fluoro-(4-isobutyl-phenyl)-acetic acid III/35b 2.2:1268 
35844 C12H15F3O 
232.24 
OH 
CF3 
CH3 
H3C 
OH 
CF3 
CH3 
H3C 
+ 
(R,S)-2,2,2-Trifluoro-1-(2,3,5,6-tetramethyl-
phenyl)-ethanol 
III/35b 2.2:1269 
CH3 CH3 
CH3 CH3 
35845 C12H15F3O2 
248.24 
PhF3C 
OH OH (2R,4R)-1,1,1-Trifluoro-6-phenyl-hexane-
2,4-diol 
III/35b 2.2:1270 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35846 C12H15F3O2 
248.24 
PhF3C 
OH OH (2S,4S)-1,1,1-Trifluoro-6-phenyl-hexane-
2,4-diol 
III/35b 2.2:1271 
35847 C12H15F3O2 
248.24 
O 
O 
CF3 Trifluoro-acetic acid adamantan-2-yl ester III/35b 2.2:1272 
35848 C12H15F3O3 
264.24 
O 2-Methyl-2-(5,5,5-trifluoro-3-oxo-pentyl)-
cyclohexane-1,3-dione 
III/35b 2.2:1273 
OO 
CF3 
35849 C12H15F6NO3S 
367.31 Ph N(+) CF3 O(-) S 
CF3 
O O Trifluoro-methanesulfonatebenzyl-dimethyl-
(2,2,2-trifluoro-ethyl)-ammonium; 
III/35b 2.2:1275 
35850 C12H15FeNO3 
277.1 (-) 
Fe(+) 
C 
O 
C O 
O 
N 
C2H5 
C2H5 
C12H15FeNO3 III/35c4 2.2:1310 
35851 C12H15FeO2 
247.09 
(Tetramethylcyclopentadienyl)-dicarbonyl-
iron(1+) 
III/35e 2.2.7:4636 
(-) 
Fe(2+) 
C C 
O O 
35852 C12H15IN2O5 
394.16 
O 
O 
I 
N 
NH 
O 
O 
1-((4R,6S)-6-Iodomethyl-2,2-dimethyl-
tetrahydro-furo[3,4-d][1,3]dioxol-4-yl)-1H-
pyrimidine-2,4-dione 
III/35e 2.2.1:1484 
O 
35853 C12H15N 
173.25 Ph N 
C12H15N III/35b 3.2:1437 
35854 C12H15N 
173.25 
CH2 
CH3 
N 
CH2 
CH3 
N+ 
(R,S)-2-Methyl-1-vinyl-1,2,3,4-tetrahydro-
isoquinoline 
III/35c2 2.2:1483 
35855 C12H15NO 
189.25 
(E/Z) 
CH3 
2-Methyl-1-phenylamino-pent-1-en-3-one III/35e 2.2.1:1485 
H5C2 
Ph 
NH 
O 
35856 C12H15NO 
189.25 
(E/Z) 
CH3 
4-Benzylamino-3-methyl-but-3-en-2-one III/35e 2.2.1:1486 
H3C 
NH Ph 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35857 C12H15NO 
189.25 
35858 C12H15NO 
189.25 
35859 C12H15NO 
189.25 
35860 C12H15NO 
189.25 
35861 C12H15NO 
189.25 
35862 C12H15NO 
189.25 
35863 C12H15NO 
189.25 
35864 C12H15NO 
189.25 
35865 C12H15NO 
189.25 
35866 C12H15NO 
189.25 
35867 C12H15NO 
189.25 
3612-20-2 
35868 C12H15NO 
189.25 
776-75-0 
H3C 
O NH 
CH3 
H3C 
O NH 
CH3 
H3C 
O NH Ph 
CH3 
H5C2 
O NH Ph 
Ph 
O NH CH3 
CH3 
Ph 
O NH 
CH3 
C2H5 
Ph O 
N 
CH3 
H3C CH3 
Ph O 
N 
CH3 
CH3 
CH3 
O 
Ph 
N 
O N 
Ph 
O 
N 
Ph 
O 
N 
CH3 
CH3 
CH3 
(Z)-4-m-Tolylamino-pent-3-en-2-one 
(Z)-4-p-Tolylamino-pent-3-en-2-one 
(Z)-4-Benzylamino-pent-3-en-2-one 
(Z)-1-Benzylamino-pent-1-en-3-one 
(Z)-3-Isopropylamino-1-phenyl-propenone 
(Z)-3-Ethylamino-1-phenyl-but-2-en-1-one 
(Z)-3-Dimethylamino-2-methyl-1-phenyl-
propenone 
(Z)-3-Dimethylamino-1-phenyl-but-2-en-1-
one 
2-Phenyl-1-pyrrolidin-1-yl-ethanone 
1-p-Tolyl-piperidin-4-one 
1-Benzyl-4-oxopiperidine; 
1-Benzyl-piperidin-4-one; 
4-Piperidinone, 1-(phenylmethyl)-; 
4-Piperidone, 1-benzyl-
Phenyl-piperidin-1-yl-methanone; 
Piperidine, 1-benzoyl- 
III/35e 2.2.1:1487 
III/35e 2.2.1:1488 
III/35e 2.2.1:1489 
III/35e 2.2.1:1490 
III/35e 2.2.1:1491 
III/35e 2.2.1:1492 
III/35e 2.2.1:1493 
III/35e 2.2.1:1494 
III/35c2 2.2:1485 
III/35c2 2.2:1484 
III/35e 2.2.1:1496 
III/35e 2.2.1:1495 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35869 C12H15NO 
189.25 
N 
O 2-tert-Butyl-2,3-dihydro-isoindol-1-one III/35e 2.2.1:1497 
35870 C12H15NO 
189.25 
H3C 
H3C 
CH3 
NH 
H3C 
H3C 
+ CH3 
NH (R,S)-3,6,7-Trimethyl-2,3-dihydro-1H-
quinolin-4-one 
III/35c2 2.2:1486 
O O 
35871 C12H15NOS 
221.32 
CH3S 
Ph 
3-Ethyl-2-methyl-5-phenyl-thiazolidin-4-one III/35c2 2.2:1487 
N 
C2H5 
O 
35872 C12H15NO2 
205.25 
O CH3 (Z)-4-(3-Methoxy-phenylamino)-pent-3-en-
2-one 
III/35e 2.2.1:1498 
ONH 
CH3 
CH3 
35873 C12H15NO2 
205.25 
O CH3 (Z)-4-(4-Methoxy-phenylamino)-pent-3-en-
2-one 
III/35e 2.2.1:1499 
NH 
O 
CH3 CH3 
35874 C12H15NO2 
205.25 
O (2-Hydroxy-phenyl)-piperidin-1-yl-
methanone 
III/35e 2.2.1:1500 
N 
OH 
35875 C12H15NO2 
205.25 
O C2H5 
O 
(R,S)-(2,3-Dihydro-1H-indol-2-yl)-acetic 
acid ethyl ester 
III/35c2 2.2:1490 
NH 
+ 
O C2H5 
O 
NH 
35876 C12H15NO2 
205.25 
NH 
HO 
O 
+ 
NH 
HO 
O 
(R,S)-3-tert-Butyl-3-hydroxy-1,3-dihydro-
indol-2-one 
III/35c2 2.2:1489 
35877 C12H15NO2 
205.25 
HO 1-(7-Hydroxy-2,3,4,5-tetrahydro-
benzo[b]azepin-1-yl)-ethanone 
III/35c2 2.2:1488 
N 
O CH3 
35878 C12H15NO3 
221.25 N 
Ph 
H3C 
HOOC 
O 
(Acetyl-phenethyl-amino)-acetic acid III/35b 3.2:1438 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35879 C12H15NO3 
221.25 
Ph 
OH5C2 O O 
N (R,S)-5-Ethoxymethyl-3-phenyl-oxazolidin-
2-one 
III/35c2 2.2:1492 
+ 
Ph 
OH5C2 O O 
N 
35880 C12H15NO3 
221.25 
CH3 
O 
H3C 
H3C 
O 
O 
N 
6,7-Dimethoxy-2-methyl-3,4-dihydro-2H-
isoquinolin-1-one 
III/35c2 2.2:1491 
35881 C12H15NO5 
253.25 
CH3 
O 
H5C2 
O 
O 
CH3 3-Methoxy-4-methyl-pyridine-2,5-
dicarboxylic acid 5-ethyl ester 2-methyl 
ester 
III/35c2 2.2:1493 
O 
CH3N 
O 
35882 C12H15N2P 
218.24 
NHN 
P Ph 
3-tert-Butyl-5-phenyl-1H-
[1,2,4]diazaphosphole 
III/35a 3.2:1046 
35883 C12H15N3S 
233.33 
C2H5 
C2H5 
N 
N 
N 
S 
Ph 
Diethyl-(5-phenyl-[1,3,4]thiadiazol-2-yl)-
amine 
III/35c2 2.2:1494 
35884 C12H15N3S 
233.33 
CH3 
CH3 
C2H5 
NN 
N 
S N-[3-Methyl-3H-benzothiazol-2-ylidene]-N'-
[1-methyl-propylidene]-hydrazine 
III/35c2 2.2:1495 
35885 C12H15N5S 
261.35 
CH3 
S 
5-Methylsulfanyl-2-pentyl-
[1,2,4]triazolo[1,5-c]pyrimidine-8-
III/35c2 2.2:1496 
carbonitrile 
NNN 
C5H11 
N 
CN 
35886 C12H15OPS 
238.29 P 
O 
S 
H3C 
H3C 
Ph P 
O 
S 
H3C 
H3C 
Ph+ 
(R,S)-3,4-Dimethyl-1-phenoxy-2,3-dihydro-
phosphole 1-sulfide 
III/35a 3.2:1047 
35887 C12H15P 
190.22 
P 
1-tert-Butyl-1H-phosphindole III/35a 3.2:1048 
35888 C12H16BNO3S 
265.14 
N 
B 
O CH2 
S 
O 
CH3 
C12H16BNO3S III/35a 2.2:1038 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35889 C12H16B2CdN8 
406.33 
NNNN 
C12H16B2CdN8 III/35c4 2.2:1311 
NNN N 
BH2CdH2B 
35890 C12H16B2CrO4S 
329.94 
H5C2 C2H5 C12H16B2CrO4S III/35a 2.2:1039 
BB 
S O 
C 
CrCO 
C 
OC 
O 
35891 C12H16B2N2 
209.89 NHC CH C12H16B2N2 III/35a 2.2:1040 
BB 
N 
HC CH 
35892 C12H16B2N8Pb 
501.12 
NNNN 
C12H16B2N8Pb III/35c4 2.2:1312 
NNN N 
BH2PbH2B 
35893 C12H16B4 
203.5 
C12H16B4 III/35a 2.2:1041 
35894 C12H16B12Br4 
609.6 
[1,12-(m,m-Br2C6H3)2B12H10]2-III/35a 2.2:1042 
35895 C12H16B12Cl4 
431.8 
[1,7-(p,m-Cl2C6H3)2B12H10]2-III/35a 2.2:1043 
35896 C12H16ClLaO 
350.62 
(delocalized system) 
CH(-) 
C12H16ClLaO III/35c4 2.2:1313 
Cl(-) 
CH(-) 
OLa(3+) 
35897 C12H16ClLuO 
386.68 
(delocalized system) 
CH(-) 
C12H16ClLuO III/35c4 2.2:1314 
Cl(-) 
CH(-) 
OLu(3+) 
35898 C12H16Cl2O2Te 
390.76 
Ph 
Te 
Cl O C12H16Cl2O2Te III/35c4 2.2:1315 
O 
Cl 
C2H5 
35899 C12H16Cl2Te 
358.76 Ph 
Te 
Cl C12H16Cl2Te III/35c4 2.2:1316 
Cl 
35900 C12H16FNOS 
241.32 Ph 
S 
F 
O 
C2H5 
C2H5 
N Ph 
S 
F 
O 
C2H5 
C2H5 
N+ 
(R,S)-N,N-Diethyl-2-fluoro-2-
phenylsulfanyl-acetamide 
III/35b 2.2:1276 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35901 C12H16F2O 
214.25 
Ph 
F 
O 
F 
C2H5 
[1-Fluoro-2-(2-fluoro-butoxy)-ethyl]benzene 
III/35b 2.2:1277 
35902 C12H16F2OSi 
242.34 
Ph (1-Benzyl-2,2-difluoro-vinyloxy)-trimethyl-
silane 
III/35b 2.2:1278 
F Si 
O 
F 
35903 C12H16F2O2Te 
357.85 
Ph 
Te 
F O C12H16F2O2Te III/35c4 2.2:1317 
O 
F 
C2H5 
35904 C12H16F2Te 
325.85 Ph 
Te 
F C12H16F2Te III/35c4 2.2:1318 
F 
35905 C12H16F3NO 
247.26 
PhF3C 
OH NH2 (2R,4R)-4-Amino-1,1,1-trifluoro-6-phenyl-
hexan-2-ol 
III/35b 2.2:1279 
35906 C12H16F3NO 
247.26 
PhF3C 
OH NH2 (2R,4S)-4-Amino-1,1,1-trifluoro-6-phenyl-
hexan-2-ol 
III/35b 2.2:1280 
35907 C12H16NOP 
221.24 
CH3 
H3C 
(3,5-Dimethyl-1-oxo-1H-1.5-phosphindol-1-
yl)-dimethyl-amine 
III/35a 3.2:1049 
P 
N 
CH3 
O 
CH3 
35908 C12H16N2 
188.27 
Ph 1-Benzyl-2-ethyl-4,5-dihydro-1H-imidazole III/35c2 2.2:1497 
N 
C2H5 
N 
35909 C12H16N2 
188.27 
CH3 
CH3 
Ph 
N 
N 
2-Isopropyl-1-phenyl-4,5-dihydro-1H-
imidazole 
III/35c2 2.2:1498 
35910 C12H16N2O 
204.27 
O 
PhNHN 
Pyrrolidine-1-carboxylic acid benzylamide III/35c2 2.2:1500 
35911 C12H16N2O 
204.27 
O 
N 
N 
4-(4,4-Dimethyl-4,5-dihydro-oxazol-2-yl)-3-
ethyl-pyridine 
III/35c2 2.2:1499 
C2H5 
35912 C12H16N2O2 
220.27 
O 3-Ethoxy-1-oxo-1,2,4a,5,6,7,8,8a-
octahydro-isoquinoline-4-carbonitrile 
III/35c2 2.2:1501 
NH 
C2H5 
O 
CN 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35913 C12H16N2O2S 
252.33 
OO 
CH3 
N N 
S 
4,4-Dimethyl-1-(toluene-4-sulfonyl)-4,5-
dihydro-1H-imidazole 
III/35c2 2.2:1502 
35914 C12H16N2O3 
236.27 
N(-) 
N(+) 
C12H16N2O3 III/35c2 2.2:1503 
O 
C2H5 
H3C O 
O 
CH3 
35915 C12H16N2O4 
252.27 
CH3 
NH 
4-Methylamino-pyridine-2,6-dicarboxylic 
acid diethyl ester 
III/35c2 2.2:1504 
O O 
H5C2 C2H5N 
OO 
35916 C12H16N2O5 
268.27 O 
O 
H3C 
ON 
NH 
O 1-((4R,6R)-2,2,6-Trimethyl-tetrahydro-
furo[3,4-d][1,3]dioxol-4-yl)-1H-pyrimidine-
2,4-dione 
III/35e 2.2.1:1501 
O 
35917 C12H16N2O6 
284.26 
O 
O 
OH 
N 
NH 
O 
O 
1-((4R,6R)-6-Hydroxymethyl-2,2-dimethyl-
tetrahydro-furo[3,4-d][1,3]dioxol-4-yl)-1H-
pyrimidine-2,4-dione 
III/35e 2.2.1:1502 
O 
35918 C12H16N2O7 
300.26 
CH3O 1-(1-Ethoxy-2-methoxycarbonyl-2-nitro-
ethyl)-1H-pyrrole-2-carboxylic acid methyl 
III/35c2 2.2:1505 
ON ester 
NO2 
O 
O 
CH3 
OH5C2 
35919 C12H16N2O8S2Zn 
445.8 
N 
S 
O 
Zn N 
H3C CH3SO 
O 
OO O C12H16N2O8S2Zn III/35c4 2.2:1319 
H2O H2O 
35920 C12H16N2S 
220.33 
Diethyl-(8H-thieno[2,3-d]azepin-7-yl)-amine III/35c2 2.2:1506 
N 
S 
H5C2 N 
C2H5 
35921 C12H16N4O3 
264.28 
See appendix No: 35921 (R,S)-2-(9-Methoxymethyl-9H-purin-6-yl)-
propionic acid ethyl ester 
III/35c2 2.2:1507 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35922 C12H16Ni 
218.95 
See appendix No: 35922 C12H16Ni III/35c4 2.2:1320 
35923 C12H16O 
176.25 
O 
CH3 
CH3 
H3C 
1-(2,3,5,6-Tetramethyl-phenyl)-ethanone III/35e 2.2.1:1503 
CH3 
CH3 
35924 C12H16O 
176.25 Ph 
OH Cyclohexanol, 1-phenyl-; 
1-Phenyl-1-cyclohexanol; 
III/35e 2.2.2:3026 
1589-60-2 1-Phenylcyclohexan-1-ol; 
1-Phenylcyclohexanol 
35925 C12H16OS 
208.32 
O 
S 
CH3 
CH3H3C 
C2H5 
2,4,6-Trimethyl-thiobenzoic acid S-ethyl 
ester; 
2,4,6-Trimethyl-thiobenzoic acid S-ethyl 
ester 
III/35e 2.2.1:1504 
35926 C12H16OS 
208.32 
O 
S 
Cyclohexanesulfinyl-benzene III/35e 2.2.5:4309 
Ph 
35927 C12H16O2 
192.25 
16537-09-0 Ph 
O 
O Phenyl-acetic acid tert-butyl ester III/35e 2.2.1:1505 
35928 C12H16O2S 
224.32 O 
S 
O Cyclohexanesulfonyl-benzene III/35e 2.2.5:4310 
Ph 
35929 C12H16O2Sn 
310.94 Ph 
O 
Sn 
O C12H16O2Sn III/35e 2.2.1:1506 
35930 C12H16O3 
208.25 
CH3 2-Methyl-benzenecarboperoxoic acid tertbutyl 
ester 
III/35e 2.2.1:1507 
O 
O 
O 
35931 C12H16O3 
208.25 
CH3 
O 
6-Methyl-4-pentyl-3H-furo[3,4-c]furan-1-one III/35c2 2.2:1508 
O 
H11C5 
O 
35932 C12H16O3S 
240.32 
O 
S 
Ph 
OOH (1S,2S)-2-Benzenesulfonyl-cyclohexanol III/35e 2.2.5:4311 
35933 C12H16O5 
240.25 
H3C 
CH3 
O 
HO 
CH3 
O 
OO 
CH3 2,2,6-Trimethoxy-7-methyl-2,3-dihydro-
benzofuran-5-ol 
III/35c2 2.2:1509 
35934 C12H16Se 
239.22 
Ph 
Se 
CH3 
C3H7 
((E)-1-Methyl-pent-1-enylselanyl)-benzene III/35c4 2.2:1321 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35935 C12H16Se 
239.22 
Ph 
CH3 ((Z)-1-Methyl-pent-1-enylselanyl)-benzene III/35c4 2.2:1322 
Se 
C3H7 
35936 C12H16Se 
239.22 
Se 
Ph 
Cyclohexylselanyl-benzene III/35c4 2.2:1323 
35937 C12H16Ti 
208.12 
(-)(-) 
Ti(2+) 
H3C CH3 Dicyclopentadienyl-dimethyl-titanium III/35c4 2.2:1324 
35938 C12H17BClN6O2V 
374.51 NN N 
BH C12H17BClN6O2V III/35c4 2.2:1325 
NN 
V 
N 
O O 
Cl 
CH3H3C 
35939 C12H17B2CoTl 
446.2 
C12H17B2CoTl III/35a 2.2:1044 
35940 C12H17BrO2 
273.17 
O C12H17BrO2 III/35e 2.2.2:3027 
O 
Br 
35941 C12H17BrO2 
273.17 
O C12H17BrO2 III/35e 2.2.2:3028 
O 
Br 
35942 C12H17ClF4O2 
304.71 
C4H9O 
O 
F3C 
F 
Cl 
H7C3 
F3C 
H7C3 
+ 
C4H9O 
OF 
Cl 
Pentanoic acid 1-((R,S)-1-chloro-1,2,2,2-
tetrafluoro-ethyl)-pent-1-enyl ester 
III/35b 2.2:1281 
35943 C12H17ClN2OPtS 
467.87 Pt 
Cl 
NS 
O C12H17ClN2OPtS III/35c4 2.2:1326 
NH2 
35944 C12H17FN2O2 
240.27 
O 
H5C2 
C2H5 
N 
CH3 
OF 
N 
2-Diethylamino-5-fluoro-3H-azepine-4-
carboxylic acid methyl ester 
III/35c2 2.2:1510 
35945 C12H17FO 
196.26 
CH3F ((R,S)-2-Fluoro-1-isopropoxy-1-methyl-
ethyl)-benzene 
III/35b 2.2:1282 
Ph O CH3 
+ 
CH3F 
Ph O CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35946 C12H17F2O4P 
294.23 Ph 
OH 
P 
O 
C2H5 
O C2H5O 
Ph 
OH 
P 
O 
C2H5 
O C2H5O 
+ 
((R,S)-1,1-Difluoro-2-hydroxy-2-phenyl-
ethyl)-phosphonic acid diethyl ester 
III/35b 2.2:1283 
F F F F 
35947 C12H17F3O2 
250.26 
OO 
CF3 
OO 
CF3 
+ 
(R,S)-2-Methyl-2-(5,5,5-trifluoro-3-oxo-
pentyl)-cyclohexanone 
III/35b 2.2:1284 
35948 C12H17GeNO3 
295.91 
GeO O 
O 
Ph C12H17GeNO3 III/35b 3.2:1439 
N 
35949 C12H17GeNO3 
295.91 O N 
O 
Ge O 
Ph 
1-Phenyl-2,8,9-trioxa-5-aza-1-germa-
bicyclo[3.3.3]undecane 
III/35e 2.2.2:3029 
35950 C12H17GeNO4 
311.91 
GeO O 
O 
Ph O C12H17GeNO4 III/35b 3.2:1440 
N 
35951 C12H17N 
175.27 
(E/Z) C12H17N III/35b 3.2:1441 
N 
Ph 
35952 C12H17N 
175.27 
(E/Z) 
Ph 
N C2H5 
C12H17N III/35b 3.2:1442 
35953 C12H17N 
175.27 Ph 
2-Methyl-3-phenyl-piperidine III/35c2 2.2:1511 
NH 
CH3 
35954 C12H17NO 
191.27 
OCH3 1-(4-Dimethylamino-2,6-dimethyl-phenyl)-
ethanone 
III/35e 2.2.1:1508 
CH3 
H3C 
CH3N 
CH3 
35955 C12H17NO 
191.27 N 
H3C 
H7C3 
O 
CH2 Methyl-propyl-(4-vinyloxy-phenyl)-amine III/35e 2.2.2:3030 
35956 C12H17NO2 
207.27 
C2H5 
NH O 
(2,6-Diethyl-phenyl)-carbamic acid methyl 
ester 
III/35e 2.2.1:1510 
CH3 
O 
C2H5 
35957 C12H17NO2 
207.27 O 
H3C 
O 
2-Acetyl-3-pyrrolidin-1-yl-cyclohex-2-enone III/35e 2.2.1:1509 
N 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35958 C12H17NO2 
207.27 
CH3 
O 
C2H5 
O 
N 
3-Methyl-5,6,7,8-tetrahydro-indolizine-1-
carboxylic acid ethyl ester 
III/35c2 2.2:1512 
35959 C12H17NO2 
207.27 H3C 
H3C 
O 
O 
CH3 
NH H3C 
H3C 
O 
O 
CH3 
NH+ 
(R,S)-6,7-Dimethoxy-1-methyl-1,2,3,4-
tetrahydro-isoquinoline 
III/35c2 2.2:1513 
35960 C12H17NO2S 
239.33 
3237-31-8 
NH 
S 
O O 
Ph 
N-Cyclohexyl-benzenesulfonamide III/35b 3.2:1443 
35961 C12H17NO3 
223.27 
O 
HO 
2,2-Dimethyl-propionic acid 5-hydroxy-6-
methyl-pyridin-3-ylmethyl ester 
III/35c2 2.2:1514 
O 
H3C N 
35962 C12H17NO3Si 
251.35 
N 
SiO O 
O 
Ph C12H17NO3Si III/35b 3.2:1444; 
III/35c4 2.2:1327 
35963 C12H17NO3Si 
251.35 
2097-19-0 
O N 
O 
Si O 
Ph 
1-Phenyl-2,8,9-trioxa-5-aza-1-sila-
bicyclo[3.3.3]undecane; 
2,8,9-Trioxa-5-aza-1-
silabicyclo[3.3.3]undecane, 1-phenyl- 
III/35e 2.2.2:3031 
35964 C12H17NO6S2 
335.4 H3C 
O O 
O 
H3C S 
O(-) 
C2H5O 
S 
N(+) 
O 
H3C 
C12H17NO6S2 III/35c2 2.2:1515 
35965 C12H17NSn 
293.96 
CH3 
2-Methyl-1-trimethylstannanyl-1H-indole III/35c4 2.2:1328 
N 
Sn 
35966 C12H17N3 
203.28 
NHN 
N 3-(3-Isopropylidene-5,5-dimethyl-4,5-
dihydro-3H-pyrrol-2-yl)-1H-pyrazole 
III/35c2 2.2:1516 
CH3 
H3C 
35967 C12H17N3O 
219.28 
N 
O 
N 
N 
H3C 
C12H17N3O III/35b 3.2:1445 
35968 C12H17N3O3 
251.28 
O 
N 
CH3 N-(2-Dimethylamino-ethyl)-3-methyl-2-nitro-
benzamide 
III/35e 2.2.3:3632 
NH CH3 
NO2 
CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35969 C12H17N3O5 
283.28 HOOC NH 
O 
N 
(1-Cyclohexyl-4-nitro-2-oxo-2,5-dihydro-1H-
pyrrol-3-ylamino)-acetic acid 
III/35c2 2.2:1517 
O2N 
35970 C12H17N3S 
235.35 
C4H9 
NHN 
S N-Butyl-N'-[3-methyl-3H-benzothiazol-2-
ylidene]-hydrazine 
III/35c2 2.2:1518 
N 
CH3 
35971 C12H17OP 
208.24 
Ph 
P 
O 
H3C 
Ph 
P 
O 
H3C 
+ 
(R,S)-2,2,3-Trimethyl-1-phenyl-
phosphetane 1-oxide 
III/35e 2.2.4:3818 
35972 C12H17OP 
208.24 
Ph 
PH 
O Cyclohexylphosphinoyl-benzene III/35a 3.2:1050 
35973 C12H17O2P 
224.24 
O 
H3C 
P 
O 1-(4-Methoxy-phenyl)-2-(trimethyl-.5-
phosphanylidene)-ethanone 
III/35e 2.2.1:1511 
35974 C12H17O3PSe 
319.19 P 
OH5C2 O 
CH2 
Se 
Ph 
H5C2 
O 
(1-Phenylselanyl-vinyl)-phosphonic acid 
diethyl ester 
III/35a 3.2:1051 
35975 C12H17O4P 
256.24 
CH3 O 
O 
(2,4,6-Trimethyl-benzoyl)-phosphonic acid 
dimethyl ester 
III/35e 2.2.4:3820 
P CH3 
H3C 
O 
CH3 
O CH3 
35976 C12H17O4P 
256.24 
25944-71-2 P 
O 
O 
C2H5 
O C2H5H3C 
O (4-Acetyl-phenyl)-phosphonic acid diethyl 
ester; 
Diethyl 4-acetylphenylphosphonate 
III/35e 2.2.4:3819 
35977 C12H17O5P 
272.23 
See appendix No: 35977 (2S*,4S*,6R*)-2-(4-Methoxy-phenoxy)-4,6-
dimethyl-[1,3,2]dioxaphosphinane 2-oxide 
III/35e 2.2.4:3821 
35978 C12H17O5P 
272.23 
See appendix No: 35978 (2R*,4S*,6R*)-2-(4-Methoxy-phenoxy)-4,6-
dimethyl-[1,3,2]dioxaphosphinane 2-oxide 
III/35e 2.2.4:3822 
35979 C12H17O5PS 
304.3 H5C2 P 
O 
S 
OH5C2 
Ph 
O C12H17O5PS III/35c4 2.2:1329 
O O 
CH2 
35980 C12H17PSi 
220.32 Si 
Ph 
CH2H2C 
PH2 Diallyl-phenyl-silanyl-phosphane III/35a 3.2:1053 
35981 C12H17PSi 
220.32 Si 
P 6a-Phenyl-hexahydro-3a-phospha-6a-sila-
pentalene 
III/35a 3.2:1052 
Ph 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35982 C12H18BF2N2 
239.09 
NN 
B(+) 
F F C12H18BF2N2 
+ III/35a 2.2:1045 
35983 C12H18B2F2FeN6 
O6 
457.77 
See appendix No: 35983 C12H18B2F2FeN6O6 III/35a 2.2:1046 
35984 C12H18ClNO6 
307.73 
See appendix No: 35984 1-((R,S)-1-tert-Butoxycarbonyl-ethyl)-
pyridinium; perchlorate 
III/35c2 2.2:1519 
35985 C12H18Cl2Pd2 
445.98 
(delocalized system) 
Pd(+) 
Cl 
Pd(+) 
Cl 
CH(-) 
CH2CH(-) 
CH2 
C12H18Cl2Pd2 III/35c4 2.2:1330 
35986 C12H18Cl2Pd2 
445.98 
(delocalized system) 
Pd(+) 
Cl 
Pd(+) 
Cl CH(-) 
CH(-) 
C12H18Cl2Pd2 III/35c4 2.2:1331 
35987 C12H18Cl2Te 
360.78 Ph 
Te C6H13 
Cl C12H18Cl2Te III/35c4 2.2:1332 
Cl 
35988 C12H18CoN3O3 
311.22 O 
CH3H3C 
N 
O 
O 
C12H18CoN3O3 III/35b 3.2:1446 
Co 
N N 
CH3H3C 
35989 C12H18FNO2 
227.28 
O 
CH3 
(3-Fluoro-adamantan-1-yl)-carbamic acid 
methyl ester 
III/35b 2.2:1285 
NH O 
F 
35990 C12H18FO3P 
260.24 Ph 
C2H5 
C2H5P 
O O 
O 
F 
Ph 
C2H5 
C2H5P 
O O 
O 
F 
+ 
((R,S)-1-Fluoro-1-phenyl-ethyl)-phosphonic 
acid diethyl ester 
III/35a 3.2:1054 
35991 C12H18F3NO6S 
361.33 
See appendix No: 35991 2-[(R,S)-2,2,2-Trifluoro-1-(pyrrolidine-1-
sulfonylmethyl)-ethyl]-malonic acid dimethyl 
ester 
III/35b 2.2:1286 
35992 C12H18F14NO2P 
Si2 
561.4 
O 
P 
O F 
F 
N 
Si 
Si 
CF3 
F3C 
CF3 
F3C 
2,2-Difluoro-2-(1,1,1,3,3,3-hexamethyl-
disilazan-2-yl)-4,4,5,5-tetrakis-
trifluoromethyl-2.5-[1,3,2]dioxaphospholane 
III/35a 3.2:1055 
35993 C12H18Ge2 
307.55 
H2C Ge 
Ge CH2 
H2C CH2 
H2C CH2 1,1,1,2,2,2-Hexavinyl-digermane III/35c4 2.2:1333 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
35994 C12H18MnO5P 
328.18 
C 
O 
C 
O 
OH3C C12H18MnO5P III/35e 2.2.7:4681 
Mn 
C P 
C2H5 
O CH5C2 C2H5 
O 
35995 C12H18NO2P 
239.25 
3-tert-Butyl-2-phenoxy-
[1,3,2]oxazaphospholidine 
III/35a 3.2:1057 
PhN 
O 
P O 
35996 C12H18NO2P 
239.25 
CH3 8-(3,4-Dimethyl-phenyl)-tetrahydro-8.5-
[1,3,2]oxazaphospholo[2,3-
III/35a 3.2:1056 
O b][1,3,2]oxazaphosphole 
OPH CH3 
N 
35997 C12H18N2 
190.28 
NH 
C2H5 
N 
1-(5-Ethyl-pyridin-2-yl)-2,2-dimethyl-
propylideneamine 
III/35c2 2.2:1520 
35998 C12H18N2OS 
238.35 
O 
CH3 
S 
NHN 
2,2-Dimethyl-N-(3-methylsulfanylmethyl-
pyridin-2-yl)-propionamide 
III/35c2 2.2:1521 
35999 C12H18N2O5 
270.28 O 
CH3 
O 
O 
H2N CH3O 
N 
1-(2-Amino-1-ethoxy-2-methoxycarbonyl-
ethyl)-1H-pyrrole-2-carboxylic acid methyl 
ester 
III/35c2 2.2:1522 
C2H5O 
36000 C12H18N2S 
222.35 
N 
(3,8-Dihydro-2H-thieno[2,3-d]azepin-7-yl)-
diethyl-amine 
III/35c2 2.2:1523 
S 
H5C2 N 
C2H5 
36001 C12H18N3P 
235.26 
N 
P 
NH 
N 
C4H9 
CH3 
Ph 3-Butyl-2-methyl-5-phenyl-3,4-dihydro-2H-
[1,2,4,3]triazaphosphole 
III/35a 3.2:1058 
36002 C12H18Ni 
220.97 
(delocalized system) 
C(-) 
C12H18Ni III/35c4 2.2:1334 
(-)Ni(2+) 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36003 C12H18Ni 
220.97 
(delocalized system) 
H3C 
C12H18Ni III/35c4 2.2:1335 
CH(-) 
(-)Ni(2+) 
36004 C12H18Ni 
220.97 
(-) 
(delocalized system) 
Ni(2+) 
CH(-) CH3 
C12H18Ni III/35c4 2.2:1336 
36005 C12H18O 
178.27 
O 
CH3 
CH3 1-tert-Butyl-2-methoxy-3-methyl-benzene III/35e 2.2.2:3034 
36006 C12H18O 
178.27 
88-40-4 
O 
CH3 
H3C 1-tert-Butyl-2-methoxy-4-methyl-benzene; 
2-tert-Butyl-5-methylanisole 
III/35e 2.2.2:3033 
36007 C12H18O2P2 
256.22 
CH3 
H3C 
3,5,8,10-Tetramethyl-3,10-diphospha-
tricyclo[5.2.1.02,6]deca-4,8-diene 3,10-
III/35a 3.2:1059 
PO dioxide 
P 
O 
36008 C12H18O2P2 
256.22 P CH3 
O (1S,2S,3S,6S,7S)-3,5,8,10-Tetramethyl-
3,10-diphospha-tricyclo[5.2.1.02,6]deca-4,8-
III/35e 2.2.4:3823 
H3C diene 3,10-dioxide 
P 
O 
36009 C12H18O2P2 
256.22 
P 
P CH3 
O 
H3C 
O 
(1S,2S,3R,6S,7S)-3,5,8,10-Tetramethyl-
3,10-diphospha-tricyclo[5.2.1.02,6]deca-4,8-
diene 3,10-dioxide 
III/35e 2.2.4:3824 
36010 C12H18O2P2S2 
320.35 
O 
P 
O 
P 
S 
S 
Ph 
2-tert-Butyl-5-phenyl-
[1,3,2,5]dioxadiphosphinane 2,5-disulfide 
III/35a 3.2:1060 
36011 C12H18O2S 
226.34 
16823-63-5 H13C6 
O O 
S 
Ph 
Benzene, (hexylsulfonyl)-; 
(Hexane-1-sulfonyl)-benzene; 
Hexyl phenyl sulfone 
III/35e 2.2.5:4312 
36012 C12H18P2 
224.22 P 
Ph 
CH3 
P 
CH3 P 
Ph 
+ 
CH3 
P 
CH3 
(R,S)-2-Dimethylphosphanyl-1-phenyl-
phospholane 
III/35a 3.2:1061 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36013 C12H18P2S2 
288.35 
CH3 
H3C 
3,5,8,10-Tetramethyl-3,10-diphospha-
tricyclo[5.2.1.02,6]deca-4,8-diene 3,10-
III/35a 3.2:1062 
PS disulfide 
P 
S 
36014 C12H18Se 
241.23 Ph 
Se 
(3,3-Dimethyl-butylselanyl)-benzene III/35c4 2.2:1338 
36015 C12H18Te 
289.87 
Te 
1-(3,3-Dimethyl-but-1-ynyltellanyl)-3,3-
dimethyl-but-1-yne 
III/35c4 2.2:1339 
36016 C12H18Te 
289.87 Ph 
Te 
C6H13 
Hexyltellanyl-benzene III/35c4 2.2:1340 
36017 C12H19BClN 
223.55 
C3H7 
Ph 
H7C3 
Cl 
B 
N 
C12H19BClN III/35c4 2.2:1341 
36018 C12H19BClN 
223.55 
ClCH3 
B 
C12H19BClN III/35c4 2.2:1342 
H3C PhN 
H3C CH3 
36019 C12H19BFeO3Se 
Si 
384.98 
H5C2 C12H19BFeO3SeSi III/35c4 2.4:3378 
SeH5C2 
SiB 
Fe C O 
C CO 
O 
36020 C12H19BO3RuSe 
Si 
430.2 
H5C2 C12H19BO3RuSeSi III/35c4 2.4:3379 
SeH5C2 
SiB 
Ru C O 
C CO 
O 
36021 
265.31 
C12H19BZr 
(-)(-) 
Zr(3+) 
BH3H3C CH3(-) C12H19BZr III/35a 2.2:1047 
36022 C12H19B4P 
237.5 BHP 
BH BH 
BH 
C2H5 
C2H5 
Ph 
C12H19B4P III/35c4 2.2:1343 
36023 C12H19BrS 
275.25 
C8H17 2-Bromo-3-octyl-thiophene III/35c2 2.2:1524 
BrS 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36024 C12H19ClIrNO2 
436.95 (-) (-) 
C12H19ClIrNO2 III/35c4 2.2:1344 
+ 
Cl 
O 
NH2 
Ir(+)O 
Cl 
O 
NH2 
Ir(+)O 
36025 C12H19ClNP 
243.71 P 
Cl 
C3H7 
C12H19ClNP III/35b 3.2:1447 
Ph N 
C3H7 
36026 C12H19ClNP 
243.71 
CH3 
P 
Cl C12H19ClNP III/35b 3.2:1448 
Ph N CH3 
CH3H3C 
36027 C12H19ClOSi 
242.82 
O 
Si 
Cl 
C2H5 
H5C2 C2H5 
(4-Chloro-phenoxy)-triethyl-silane III/35e 2.2.2:3035 
36028 C12H19ClO3Si 
274.82 
Cl 
O 
C2H5 
O 
3-Chlorophenyltriethoxysilane III/35e 2.2.2:3036 
Si C2H5 
O C2H5 
36029 C12H19Cl2NSi 
276.28 
CH3 
Si 
Cl Cl (Dichloro-phenyl-silanyl)-diisopropyl-amine III/35b 3.2:1449 
Ph N CH3 
CH3H3C 
36030 C12H19FO2 
214.28 
F 
O 
(2E,4E)-4-Fluoro-undeca-2,4-dienoic acid 
methyl ester 
III/35b 2.2:1288 
CH3 
C6H13 O 
36031 C12H19FO2 
214.28 
F 
OH13C6 
(2E,4Z)-4-Fluoro-undeca-2,4-dienoic acid 
methyl ester 
III/35b 2.2:1289 
CH3 
O 
36032 C12H19F3O2 
252.27 
F3C 
C4H9 O 
O (E)-3-Trifluoromethyl-hept-2-enoic acid tertbutyl 
ester 
III/35b 2.2:1291 
36033 C12H19N 
177.29 
2909-79-7 CH3 
N 
CH3 4-tert-Butyl-N,N-dimethylaniline; 
(4-tert-Butyl-phenyl)-dimethyl-amine 
III/35b 3.2:1450 
36034 C12H19NO 
193.28 
C6H13 
CH3 
ON 
3-Hexyl-2-methoxy-pyridine III/35c2 2.2:1525 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36035 C12H19NOSi 
221.37 
O (4-Dimethylamino-phenyl)-trimethylsilanylmethanone 
III/35e 2.2.1:1513 
Si 
N 
H3C 
CH3 
36036 C12H19NO2 
209.28 
O 3-Cyclohexylaminomethylene-pentane-2,4-
dione 
III/35e 2.2.1:1514 
H3C NH 
O CH3 
36037 C12H19NO2 
209.28 
O 
H5C2 O 
N 
4-tert-Butyl-4H-pyridine-1-carboxylic acid 
ethyl ester 
III/35c2 2.2:1526 
36038 C12H19NO2 
209.28 
O CH3 3-Azepan-1-ylmethylene-pentane-2,4-dione III/35e 2.2.1:1515 
NH3C 
O 
36039 C12H19NO2P2 
271.23 
CH3 
O 
H3C 
N CH3 
P 
O 
PH 
(5,8-Dimethyl-3,10-dioxo-3.5,10.5-
diphospha-tricyclo[5.2.1.02,6]deca-4,8-dien-
3-yl)-dimethyl-amine 
III/35a 3.2:1063 
H3C 
36040 C12H19NO2S 
241.35 
23705-46-6 
CH3 
Ph 
S 
O 
N CH3 
O Benzenesulfonamide, N,N-bis(1-
methylethyl)-; 
Benzenesulfonamide, N,N-diisopropyl-; 
N,N-Diisopropyl-benzenesulfonamide 
III/35b 3.2:1451 
CH3H3C 
36041 C12H19NO2S 
241.35 S 
O 
C3H7 
O N,N-Dipropyl-benzenesulfonamide III/35b 3.2:1452 
Ph N 
C3H7 
36042 C12H19NO2Si 
237.37 O O 
Ph 
N 
Si 
H3C 
C12H19NO2Si III/35b 3.2:1453 
36043 C12H19NO2Si 
237.37 
O 
Si 
2,2-Dimethyl-6-phenyl-
[1,3,6,2]dioxazasilocane 
III/35b 3.2:1454; 
III/35e 2.2.2:3037 
ON 
Ph 
36044 C12H19NO3 
225.28 
H5C2 
O 
C2H5 
O 
C2H5 
O 
N 
2,6-Diethoxy-3-ethoxymethyl-pyridine III/35c2 2.2:1527 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36045 C12H19N2O3P 
270.26 P 
O O CH3 
CH3 
(4-Phenyl-piperazin-1-yl)-phosphonic acid 
dimethyl ester 
III/35b 3.2:1455 
N O 
N 
Ph 
36046 C12H19N2P 
222.27 
N 
CH3 
Ph 
C12H19N2P III/35c4 2.2:1345 
H3C P 
N 
CH3H3C 
36047 C12H19N3 
205.3 N 
H3C CH3 N''-Benzyl-N,N,N',N'-tetramethyl-guanidine III/35b 3.2:1456 
N 
CH3Ph N 
CH3 
36048 C12H19OReS2 
429.62 
C12H19OReS2 III/35e 2.2.7:4851 
(-) 
S 
Re(+) 
O 
S 
36049 C12H19O3PS 
274.32 P 
O O C2H5 
O 
C2H5H3C 
S 
Ph 
P 
O O C2H5 
O 
C2H5H3C 
S 
Ph 
+ 
((R,S)-Methylsulfanyl-phenyl-methyl)phosphonic 
acid diethyl ester 
III/35c4 2.2:1346 
36050 C12H19O3PS2 
306.38 P 
O O C2H5 
O 
C2H5Ph 
S 
S 
CH3 
P 
O O C2H5 
O 
C2H5Ph 
S 
S 
CH3 
+ 
((R,S)-Methylsulfanyl-phenylsulfanyl-
methyl)-phosphonic acid diethyl ester 
III/35c4 2.2:1347 
36051 C12H19O3Re 
397.48 
C12H19O3Re III/35e 2.2.7:4852 
(-) 
O 
Re(+) 
O 
O 
36052 C12H19P 
194.25 PH2 
C2H5 
C2H5H5C2 
2,4,6-Triethyl-phenyl-phosphane III/35a 3.2:1064 
36053 C12H20BBr3 
414.81 
Br 
H9C4 
Br 
B 
C4H9 
Br C12H20BBr3 III/35a 2.2:1048 
36054 C12H20BN 
189.1 
Ph 
BH3 
N 
C12H20BN III/35c4 2.2:1348 
C4H9 
CH3 
36055 C12H20ClO2P 
262.71 
C12H20ClO2P III/35e 2.2.4:3826 
O 
P C2H5 
Cl O 
36056 C12H20FN 
197.29 N 
F 
N 
F 
+ 
Cyclohexyl-[(R,S)-2-fluoro-cyclohex-(E)-
ylidene]-amine 
III/35b 2.2:1292 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36057 C12H20F2O 
218.28 
H9C4 
FA 
FB 
HO 
1-((E)-1,2-Difluoro-hex-1-enyl)-
cyclohexanol 
III/35b 2.2:1293 
36058 C12H20F2O2 
234.28 
F 
H13C6 
O 
O 
CH3 
F 
((1S,3S)-2,2-Difluoro-3-hexyl-cyclopropyl)-
acetic acid methyl ester 
III/35b 2.2:1294 
36059 C12H20F2O2 
234.28 
F 
H13C6 
O 
O 
CH3 
F 
((1R,3S)-2,2-Difluoro-3-hexyl-cyclopropyl)-
acetic acid methyl ester 
III/35b 2.2:1295 
36060 C12H20F2O4 
266.28 
H3C 
O 
O 
F F 
O 
O CH3 
CH3 7-Acetoxy-2,2-difluoro-heptanoic acid 
isopropyl ester 
III/35b 2.2:1296 
36061 C12H20F2O4 
266.28 O 
O 
C2H5 
O 
OH5C2 
(R,S)-2,2-Difluoro-6-methyl-heptanedioic 
acid diethyl ester 
III/35b 2.2:1297 
F FCH3 
+ 
OO 
O 
C2H5OH5C2 
F FCH3 
36062 C12H20F8O6P2 
474.22 P 
O 
H5C2 
O OH5C2 
P 
F F 
F F 
F F 
F F 
O 
C2H5 
O O C2H5 
[4-(Diethoxy-phosphoryl)-1,1,2,2,3,3,4,4-
octafluoro-butyl]-phosphonic acid diethyl 
ester 
III/35b 2.2:1298 
36063 C12H20GeO 
252.93 Ph 
O 
Ge 
C2H5 
H5C2 C2H5 C12H20GeO III/35e 2.2.2:3038 
36064 C12H20GeO3 
284.93 
Ph 
Ge 
O 
C2H5 
O C2H5OH5C2 C12H20GeO3 III/35e 2.2.2:3039 
36065 C12H20IP 
322.17 
3040-69-5 H5C2 
P(+) 
C2H5 
H5C2 Ph 
I(-) 
Phenyltriethylphosphonium iodide; 
Triethyl-phenyl-phosphonium iodide 
III/35a 3.2:1065 
36066 C12H20NO3P 
257.27 H5C2 O 
P 
OH5C2 O (4-Ethylamino-phenyl)-phosphonic acid 
diethyl ester 
III/35a 3.2:1066 
C2H5 
NH 
36067 C12H20N2 
192.3 
CH3 CH3 2,6,N,N,N',N'-Hexamethyl-benzene-1,4-
diamine 
III/35b 3.2:1457 
N 
CH3 
N CH3 
H3C 
CH3 
36068 C12H20N2 
192.3 
H5C2 C2H5N Pyrazine, tetraethyl-; 
2,3,5,6-Tetraethyl-pyrazine 
III/35c2 2.2:1528 
38325-19-8 
H5C2 C2H5N 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36069 C12H20N2O2 
224.3 N 
ON 
2',2'-Dimethyl-2,3,4,5,2',5'-hexahydro-
[1,3']bipyrrolyl-1'-carboxylic acid methyl 
ester 
III/35c2 2.2:1529 
O 
CH3 
36070 C12H20N5P 
265.29 
N 
P 
N 
N N 
CH3 
CH3 
N 
CH3 
CH3 
H3C 
Ph 
C12H20N5P III/35a 3.2:1067 
36071 C12H20O 
180.29 
OH 
CH 
4-tert-Butyl-1-ethynyl-cyclohexanol III/35e 2.2.2:3041 
36072 C12H20O 
180.29 
OH 
CH 
4-tert-Butyl-1-ethynyl-cyclohexanol III/35e 2.2.2:3042 
36073 C12H20OSi 
208.37 SiH3C 
O 
(4-Isopropyl-phenoxy)-trimethyl-silane III/35e 2.2.2:3044 
36074 C12H20OSi 
208.37 
5888-66-4 
H3C 
Ph 
O 
Si 
C2H5 
H5C2 C2H5 Phenyl triethylsilyl ether; 
Triethyl-phenoxy-silane 
III/35e 2.2.2:3043 
36075 C12H20OSn 
298.98 Ph Sn 
H5C2 C2H5 Phenyl triethylstannyl ether III/35e 2.2.2:3045 
O C2H5 
36076 C12H20O2 
196.29 
OH 
O 
OH 
O 
+ 
Cyclohexyl-(5,6-dihydro-4H-pyran-2-yl)methanol; 
(R,S)-Cyclohexyl-(5,6-dihydro-4H-pyran-2-
yl)-methanol 
III/35c2 2.2:1530 
36077 C12H20O2 
196.29 O 
Cyclododecane-1,2-dione III/35e 2.2.1:1516 
3008-41-1 
O 
36078 C12H20O3 
212.28 
O 
OO 
7,14,15-Trioxa-dispiro[5.1.5.2]pentadecane III/35e 2.2.2:3046 
36079 C12H20O4 
228.28 
OO 
O 
3-Isopropenyl-6-(3-methyl-[1,2,4]trioxolan-
3-yl)-hexanal 
III/35e 2.2.2:3048 
H3C CH2 
O 
OO 
36080 C12H20O4 
228.28 
O 
O 
7,8,15,16-Tetraoxa-
dispiro[5.2.5.2]hexadecane 
III/35e 2.2.2:3049 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36081 C12H20O4Sn 
346.98 Sn 
C4H9H9C4 C12H20O4Sn III/35e 2.2.7:4884 
O 
O 
O 
O 
36082 C12H20O6 
260.28 
C2H5 
O 
O 
2,2-Dimethyl-[1,3]dioxane-5,5-dicarboxylic 
acid diethyl ester 
III/35c2 2.2:1531 
OO 
C2H5O 
O 
36083 C12H20O6 
260.28 
O 
O O 
O 
O 
HO 
(3aR*,5S*,6S*,6aR*)-5-(2,2-Dimethyl-
[1,3]dioxolan-4-yl)-2,2-dimethyl-tetrahydro-
furo[2,3-d][1,3]dioxol-6-ol 
III/35e 2.2.2:3051 
+ 
O 
O O 
O 
O 
HO 
36084 C12H20O6 
260.28 
O 
O O 
O 
O 
HO 
(3aR*,5S*,6R*,6aR*)-5-(2,2-Dimethyl-
[1,3]dioxolan-4-yl)-2,2-dimethyl-tetrahydro-
furo[2,3-d][1,3]dioxol-6-ol 
III/35e 2.2.2:3052 
+ 
O 
O O 
O 
O 
HO 
36085 C12H20P2 
226.24 
PP 
H3C 
H3C 
CH3 
CH3 
3,4,3',4'-Tetramethyl-2,5,2',5'-tetrahydro-
[1,1']biphospholyl 
III/35a 3.2:1069 
36086 C12H20Pt2 
554.44 CH3 
CH3 
PtPt 
H3C 
H3C 
C12H20Pt2 III/35c4 2.2:1349 
36087 C12H20S 
196.35 
S 
3,4-Di-tert-butyl-thiophene III/35c2 2.2:1532 
36088 C12H20Sn 
282.98 
1522-03-8 
Sn 
CH3 
H3C 
CH3 
CH3 Stannane, tetra-1-propenyl-, (all-Z)-; 
Stannane, tetrapropenyl-, cis-; 
Tetrakis-((Z)-propenyl)-stannane; 
cis-tetrapropenylstannane 
III/35c4 2.2:1350 
36089 C12H20Sn 
282.98 
CH3H3C Tetrakis-((E)-propenyl)-stannane III/35c4 2.2:1351 
Sn 
H3C CH3 
36090 C12H21B 
176.11 B 
C2H5 
C12H21B III/35a 2.2:1050 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36091 C12H21B 
176.11 
B 
B 
+ 
C12H21B III/35a 2.2:1049 
36092 C12H21BCoN 
249.05 B(-) 
N 
Co(+) 
CH2H2C 
C12H21BCoN III/35a 2.2:1051 
36093 C12H21BN2 
204.12 
N 
N 
CH3 
BH3 
Ph 
N 
N 
CH3 
BH3 
Ph 
+ 
C12H21BN2 III/35a 2.2:1052 
36094 C12H21BO3 
224.1 O 
B 
O 
O 
O 
B 
O 
O 
+ 
C12H21BO3 III/35a 2.2:1053 
36095 C12H21B3Fe 
253.57 
(C6H6)Fe(Et2C2B3H5) III/35a 2.2:1054 
36096 C12H21ClNOP 
261.73 
P 
NH 
Cl O 
C2H5 
C12H21ClNOP III/35e 2.2.4:3827 
36097 C12H21F 
184.29 
F F 
+ 
III/35b 2.2:1299 
36098 C12H21FO 
200.29 H3C 
F 
OH 
(8E,10Z)-10-Fluoro-dodeca-8,10-dien-1-ol III/35b 2.2:1300 
36099 C12H21FO 
200.29 
H2C 
F 
OH 
(E)-11-Fluoro-dodeca-9,11-dien-1-ol III/35b 2.2:1301 
36100 C12H21FO2 
216.29 
O 
CH2 
F 
O 
H3C 
10-Fluoro-undec-10-enoic acid methyl 
ester 
III/35b 2.2:1302 
36101 C12H21FO3 
232.29 
O 
O 
O 
H3C 
F 
11-Fluoro-10-oxo-undecanoic acid methyl 
ester 
III/35b 2.2:1304 
36102 C12H21FO3 
232.29 
O 
F 
O 
H3C 
O 
O 
F 
O 
H3C 
O 
+ 
methyl ester 
III/35b 2.2:1303 
(E)-(R,S)-3-Fluoro-cyclododecene 
9-((R,S)-2-Fluoro-oxiranyl)-nonanoic acid 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36103 C12H21F3O 
238.29 
(E/Z) 
H17C8 
OH 
(E,Z)-(R,S)-1,1,1-Trifluoro-dodec-3-en-2-ol III/35b 2.2:1305 
CF3 
+ 
OH 
H17C8 
CF3 
36104 C12H21GeO2P 
300.91 
Ph 
PH 
O 
O 
Ge 
C2H5 
H5C2 C2H5 C12H21GeO2P III/35c4 2.2:1352 
36105 C12H21N 
179.3 
N 
CH3 
N 
CH3 
+ 
1-((R,S)-6-Methyl-cyclohex-1-enyl)-
piperidine 
III/35b 3.2:1458 
36106 C12H21NOS2 
259.43 
S 
N 
S 
CH3 
CH3 
O 
S 
N 
S 
CH3 
CH3 
O 
+ 
1-((R,S)-4-Isobutyl-2-thioxo-thiazolidin-3-
yl)-2,2-dimethyl-propan-1-one 
III/35e 2.2.1:1517 
36107 C12H21NOSi 
223.39 
Ph 
Si 
O 
N 
CH3 
CH3 [2-(Dimethyl-phenyl-silanyloxy)-ethyl]dimethyl-
amine 
III/35b 3.2:1459 
36108 C12H21NO2 
211.3 
O 
O CH3 
H3C N CH3 
CH3 
CH3 
H3C 
3-[(Diisopropylamino)-methylene]-pentane-
2,4-dione 
III/35e 2.2.1:1518 
36109 C12H21NO2 
211.3 
CH3O 
O 
N 
4,4-Di-tert-butyl-1-methyl-azetidine-2,3-
dione 
III/35c2 2.2:1533 
36110 C12H21NO2 
211.3 
NO 
H3C 
O (2S,4R)-1-Cyclohexyl-4-methyl-azetidine-2-
carboxylic acid methyl ester 
III/35b 3.2:1460 
CH3 
36111 C12H21NO2 
211.3 
N 
H3C 
O 
O (2S,4S)-1-Cyclohexyl-4-methyl-azetidine-2-
carboxylic acid methyl ester 
III/35b 3.2:1461 
CH3 
36112 C12H21NSi 
207.39 Si C2H5 
(Dimethyl-phenyl-silanyl)-diethyl-amine III/35b 3.2:1462 
Ph N 
C2H5 
36113 C12H21N2OPt 
404.39 
N 
Pt(+) 
N 
H2O 
C12H21N2OPt (1+) III/35e 2.2.7:4823 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36114 C12H21ORe 
367.5 
C12H21ORe III/35e 2.2.7:4853 
(-) 
CH3 
Re(+) 
O 
CH3 
36115 C12H21O3P 
244.27 
37516-07-7 P 
O 
O O 
CH3 
CH3 
Adamantan-1-yl-phosphonic acid dimethyl 
ester; 
Dimethyl 1-adamantylphosphonate 
III/35e 2.2.4:3828 
36116 C12H21O4PSi 
288.35 P 
Si 
O 
Ph 
O 
CH3 
((R,S)-Phenyl-trimethylsilanyloxy-methyl)-
phosphonic acid dimethyl ester 
III/35e 2.2.4:3829 
O O CH3 
+ 
Ph 
P 
O 
Si 
O 
O 
CH3 
O CH3 
36117 C12H22BCl 
212.57 B 
Cl C12H22BCl III/35a 2.2:1055 
36118 C12H22BClO 
228.57 
O 
B 
Cl C12H22BClO III/35a 2.2:1056 
36119 C12H22BN 
191.12 
N B 
1-(Di-tert-butyl-boranyl)-1H-pyrrole III/35b 3.2:1463 
36120 C12H22BN 
191.12 Ph 
BH2 
N 
C2H5 
H5C2 C2H5 C12H22BN III/35a 2.2:1057 
36121 C12H22BP 
208.09 P 
BH3 
C12H22BP III/35a 2.2:1058 
36122 C12H22F2O2 
236.3 
H15C7 
O CH3 2,2-Difluoro-nonanoic acid isopropyl ester III/35b 2.2:1306 
O CH3 
F F 
36123 C12H22F2O3 
252.3 H13C6 
OH 
F F 
O 
O 
C2H5 
H13C6+ 
OH 
F F 
O 
O 
C2H5 (R,S)-2,2-Difluoro-3-hydroxy-3-methyl-
nonanoic acid ethyl ester 
III/35b 2.2:1307 
36124 C12H22N2O2 
226.31 
O 
2-Butyl-4,5-dihydro-imidazole-1-carboxylic 
acid tert-butyl ester 
III/35c2 2.2:1534 
O 
N 
C4H9 
N 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36125 C12H22N3O6P3 
397.24 
O 
OO 
O P 
N 
P 
N 
P 
N 
O O 
H3C 
H3C 
H3C 
H3C CH3 
CH3 2,2,4,4,6-Pentamethoxy-6-p-tolyloxy-
2.5,4.5,6.5-[1,3,5,2,4,6]triazatriphosphinine 
III/35a 3.2:1070 
36126 C12H22O2 
198.3 
O 4-tert-Butyl-cyclohexanecarboxylic acid 
methyl ester 
III/35e 2.2.1:1520 
O CH3 
+ 
O 
O CH3 
36127 C12H22O2 
198.3 
O 4-tert-Butyl-cyclohexanecarboxylic acid 
methyl ester 
III/35e 2.2.1:1521 
O CH3 
+ 
O 
O CH3 
36128 C12H22O2 
198.3 
OH 
C6H13 
O 
OH 
C6H13 
O 
+ 
(R,S)-1-(5,6-Dihydro-4H-pyran-2-yl)-
heptan-1-ol 
III/35c2 2.2:1535 
36129 C12H22O3 
214.3 O 
(1R,12S)-13,14,15-Trioxa-
bicyclo[10.2.1]pentadecane 
III/35e 2.2.2:3053 
O 
O 
36130 C12H22O3 
214.3 O 
(1S,12S)-13,14,15-Trioxa-
bicyclo[10.2.1]pentadecane 
III/35e 2.2.2:3054 
O 
O 
36131 C12H22Pt 
361.38 
(-) Pt(+) 
C3H7 
CH3 
C12H22Pt III/35c4 2.2:1353 
C3H7 
36132 C12H23AsBMoO2 
P 
411.96 
(-) Mo(+) 
P 
C 
O 
C 
O 
As 
BH3 
C12H23AsBMoO2P III/35a 2.2:1059 
36133 C12H23B 
178.12 
42928-43-8 B 
9-Borabicyclo[3.3.1]nonane, 9-(1,1-
dimethylethyl)- 
III/35a 2.2:1061 
36134 C12H23B 
178.12 
B 
B 
+ 
C12H23B III/35a 2.2:1060 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36135 C12H23B3N4S2Si2 
376.07 
B 
Si 
S 
Si 
N 
S 
N 
B 
NB 
N 
Ph 
H3C CH3 
C12H23B3N4S2Si2 III/35a 2.2:1062 
36136 C12H23B5Mo2 
413.25 
bicapped closo-[{Mo(h-C5H4Me)}2B5H9] III/35a 2.2:1063 
36137 C12H23F 
186.31 H21C10 
F (E)-1-Fluoro-dodec-1-ene III/35b 2.2:1309 
36138 C12H23F 
186.31 
H21C10 CH2 
F 2-Fluoro-dodec-1-ene III/35b 2.2:1310 
36139 C12H23F2I 
332.21 
97211-56-8 
H21C10 
FF 
I 
2,2-Difluoro-1-iodo-dodecane III/35b 2.2:1311, 
1312 
36140 C12H23F2O5P 
316.28 O 
O 
H3C 
P 
F F 
O 
C2H5 
O O C2H5 
Acetic acid 6-(diethoxy-phosphoryl)-6,6-
difluoro-hexyl ester 
III/35b 2.2:1313 
36141 C12H23GePSn 
389.62 Ge Sn 
C12H23GePSn III/35a 3.2:1071 
P 
Ph 
36142 C12H23N 
181.32 
N 
CH3 
CH3 
CH3 
+ 
N 
CH3 
CH3 
CH3 
(1,2S*,8R*)-Trimethyl-8aS*-
decahydroquinolin 
III/35b 3.2:1464 
36143 C12H23N 
181.32 
N 
CH3 
CH3 
CH3 
+ 
N 
CH3 
CH3 
CH3 
(1,2R*,8R*)-Trimethyl-8aS*-
decahydroquinolin 
III/35b 3.2:1465 
36144 C12H23N 
181.32 
N 
CH3 
CH3 
CH3 
+ 
N 
CH3 
CH3 
CH3 
(1,2S*,8S*)-Trimethyl-8aS*-
decahydroquinolin 
III/35b 3.2:1466 
36145 C12H23N 
181.32 
N 
CH3 
CH3 
CH3 
+ 
N 
CH3 
CH3 
CH3 
(1,2R*,8S*)-Trimethyl-8aS*-
decahydroquinolin 
III/35b 3.2:1467 
36146 C12H23N 
181.32 
CH3 
+ 
CH3 C12H23N III/35b 3.2:1468 
N N 
CH3 CH3 
36147 C12H23N 
181.32 
C12H23N III/35b 3.2:1469 
+ 
N N 
CH3 CH3 CH3 CH3 
36148 C12H23NO 
197.32 
NH 
O 
CH3 
C12H23NO III/35b 3.2:1471 
+ 
O 
NH 
CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36149 C12H23NO 
197.32 
NH 
O 
CH3 
C12H23NO III/35b 3.2:1472 
+ 
O 
NH 
CH3 
36150 C12H23NO 
197.32 
1-(2,2,6,6-Tetramethyl-piperidin-1-yl)-
propan-1-one 
III/35c2 2.2:1536 
C2H5N 
O 
36151 C12H23NO 
197.32 O 
1-Methyl-azacyclododecan-7-one III/35e 2.2.1:1522 
N 
H3C 
36152 C12H23NO 
197.32 
947-04-6 NH 
O 
Azacyclotridecan-2-one III/35b 3.2:1470; 
III/35e 2.2.1:1523 
36153 C12H23NO6P2Ru 
440.33 (-)H3C 
C12H23NO6P2Ru III/35c4 2.2:1354 
O 
O 
Ru(+) 
P 
P 
OH3C NC 
H3C O 
CH3 
O O CH3 
CH3 
36154 C12H23NSn2 
418.7 
Ph 
N 
Sn Sn 
C12H23NSn2 III/35b 3.2:1473 
36155 C12H23OP 
214.28 
14717-29-4 PH 
O Phosphine oxide, dicyclohexyl-III/35a 3.2:1072; 
III/35c4 2.2:1355 
36156 C12H23O3PSi2 
302.45 P 
O 
Si 
O O 
Si 
Ph C12H23O3PSi2 III/35e 2.2.4:3830 
36157 C12H23PS 
230.35 PH 
S C12H23PS III/35a 3.2:1073; 
III/35c4 2.2:1356 
36158 C12H23PSiSn 
345.06 Si Sn 
C12H23PSiSn III/35a 3.2:1074 
P 
Ph 
36159 C12H24BCl 
214.58 B 
Cl Chloro-cyclohexyl-phenyl-borane III/35a 2.2:1064 
C6H13 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36160 C12H24BN 
193.14 
H3C B 
N CH3 
H3C Dimethyl-(3-methyl-3-bora-
bicyclo[3.3.1]non-7-ylmethyl)-amine; 
3-methyl-7-dimethylaminomethyl-3-bora-
III/35a 2.2:1065 
+ 
bicyclo[3.3.1]-nonane 
H3C 
H3C B 
N CH3 
36161 C12H24BNO 
209.14 N CH3 
H3C C12H24BNO III/35a 2.2:1067 
O B 
H3C 
+ 
H3C 
N CH3 
O B 
H3C 
36162 C12H24BN3 
221.15 NN 
C12H24BN3 III/35a 2.2:1066 
B 
N 
36163 C12H24B2 
189.94 
B 
B 
C12H24B2 III/35a 2.2:1068 
36164 C12H24B2Cl2 
260.85 H3C 
CH3 
B 
C12H24B2Cl2 III/35a 2.2:1069 
B Cl 
Cl 
36165 C12H24B2O4 
253.94 
O 
O 
B 
O 
B 
O 4,4,5,5,4',4',5',5'-Octamethyl-
[2,2']bi[[1,3,2]dioxaborolanyl] 
III/35e 2.2.2:3055 
36166 C12H24B4O8Si 
367.64 
O B 
O O 
B O 
C12H24B4O8Si III/35a 2.2:1070 
OO Si 
BB 
OO 
36167 C12H24BrF 
267.22 
H21C10 
Br 
F 
H21C10 
Br 
+ F 
(R,S)-2-Bromo-1-fluoro-dodecane III/35b 2.2:1314 
36168 C12H24Cl2N10P4 
503.19 
P N 
P 
N 
PN 
P 
N 
NH 
NH 
Cl NH 
CH2 
CH2 
NH 
NH 
Cl NH 
CH2 
CH2 
H2C 
H2C 
C12H24Cl2N10P4 III/35a 3.2:1075 
36169 C12H24Cl2O25W3 
1190.73 
See appendix No: 36169 C12H24Cl2O25W3 III/35c4 2.2:1357 
36170 C12H24FI 
314.22 
H21C10 
F 
I 
H21C10 
F+ I 
(R,S)-2-Fluoro-1-iodo-dodecane III/35b 2.2:1315 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36171 C12H24FI 
314.22 
H19C9 I 
F 
H19C9+ 
F 
I 
(R,S)-2-Fluoro-1-iodo-2-methyl-undecane III/35b 2.2:1316 
36172 C12H24F2IO3P 
412.19 
133827-37-9 
I F F 
P 
O 
O 
C2H5 
O C2H5 
H11C5 
+ 
Diethyl 1,1-difluoro-3-
iodooctylphosphonate; 
((R,S)-1,1-Difluoro-3-iodo-octyl)-
phosphonic acid diethyl ester 
III/35a 3.2:1076; 
III/35b 2.2:1318 
I F F 
O 
P C2H5H11C5O O C2H5 
36173 C12H24F2Si 
234.4 Si 
H5C2 
H5C2 C2H5 
F 
F 
C4H9 
((Z)-1,2-Difluoro-hex-1-enyl)-triethyl-silane III/35b 2.2:1319 
36174 C12H24GaN 
252.05 
CH3 
N 
C12H24GaN III/35c4 2.2:1358 
GaH2C 
H2C CH2H3C 
CH3 
36175 C12H24GaN 
252.05 
CH3 C12H24GaN III/35c4 2.2:1359 
N 
GaH3C 
H3C 
36176 C12H24GaN 
252.05 
Ga 
H3C 
CH3 
N 
H3C 
C12H24GaN III/35c4 2.2:1360 
36177 C12H24NO7P 
325.3 
See appendix No: 36177 (2R*,4aR*,6R*,7R*,8R*,8aR*)-2-Ethoxy-
6,7,8-trimethoxy-3-methyl-hexahydro-
III/35a 3.2:1077 
pyrano[2,3-e][1,3,2]oxazaphosphinine 2oxide 
36178 C12H24NO7P 
325.3 
See appendix No: 36178 (2S*,4aR*,6R*,7R*,8R*,8aR*)-2-Ethoxy-
6,7,8-trimethoxy-3-methyl-hexahydro-
III/35a 3.2:1078 
pyrano[2,3-e][1,3,2]oxazaphosphinine 2oxide 
36179 C12H24O 
184.32 O 
CH3 
4-tert-Butyl-1-methoxy-1-methyl-
cyclohexane 
III/35e 2.2.2:3056 
36180 C12H24O 
184.32 O 
CH3 
4-tert-Butyl-1-methoxy-1-methyl-
cyclohexane 
III/35e 2.2.2:3057 
36181 C12H24O2 
200.32 
H5C2 
H5C2 
O O 
C2H5 
C2H5 3-[(Z)-2-(1-Ethyl-propoxy)-vinyloxy]-
pentane 
III/35e 2.2.2:3058 
36182 C12H24O2 
200.32 
O 
O 
CH3 
CH3 
4-tert-Butyl-1,1-dimethoxy-cyclohexane III/35e 2.2.2:3059 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36183 C12H24O4S 
264.38 
(cis) 
O 
O 
S 
O 
O 
2-tert-Butyl-5-(2-methyl-propane-2-
sulfonyl)-[1,3]dioxane 
III/35e 2.2.5:4313 
36184 C12H24O4S 
264.38 
(trans) 
O 
O 
S 
O 
O 
C12H24O4S III/35e 2.2.5:4314 
36185 C12H24O4Sn 
351.01 
1067-33-0 H3C 
O 
O 
Sn 
O 
O 
CH3 
H9C4 C4H9 Dibutyltin diacetate; 
Stannane, bis(acetyloxy)dibutyl-
III/35e 2.2.1:1524; 
III/35e 2.2.7:4885 
36186 C12H24O4Te 
359.92 
Te 
O 
O 
O 
O 
2,2,3,3,7,7,8,8-Octamethyl-1,4,6,9-
tetraoxa-5.4-tellura-spiro[4.4]nonane 
III/35c4 2.2:1361 
36187 C12H24O6 
264.31 O 1,4,7,10,13,16-Hexaoxacyclooctadecane III/35e 2.2.2:3060 
17455-13-9 O O 
OO 
O 
36188 C12H24Sn 
287.01 Sn 
(3-tert-Butyl-bicyclo[1.1.1]pent-1-yl)-
trimethyl-stannane 
III/35c4 2.2:1362 
36189 C12H25B3W2 
569.44 
closo-[{W(h-C5H4Me)H2}2B3H7] III/35a 2.2:1071 
36190 C12H25F2O3P 
286.3 
F F 
O 
(1,1-Difluoro-octyl)-phosphonic acid diethyl 
ester 
III/35b 2.2:1320 
PH15C7 C2H5 
O O C2H5 
36191 C12H25F3O2Si 
286.41 Si 
O OH (R,S)-4-(tert-Butyl-dimethyl-silanyloxy)-
5,5,5-trifluoro-2-methyl-pentan-2-ol 
III/35b 2.2:1321 
CF3 
+ 
Si 
O OH 
CF3 
36192 C12H25F3O2Si 
286.41 F3C O 
Si 
(R,S)-4-(tert-Butyl-dimethyl-silanyloxy)-
1,1,1-trifluoro-4-methyl-pentan-2-ol 
III/35b 2.2:1322 
OH 
+ 
F3C O 
Si 
OH 
36193 C12H25N2O3P 
276.31 
N N P 
O 
O 
CH3 
O CH3 
(4-Cyclohexyl-piperazin-1-yl)-phosphonic 
acid dimethyl ester 
III/35b 3.2:1474 
36194 C12H26BBr 
261.05 
H13C6 
B 
C6H13 
Br Dihexylbromoborane III/35a 2.2:1072 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36195 C12H26BNOSi 
239.24 
CH2 
CH3 
C2H5 
H5C2 
B 
Si 
O 
NH2 
H3C 
5-Methylamine-(4,5-diethyl-2,5-dihydro-3-
isopropenyl-2,2-dimethyl-1,2,5-
oxasilaborole) 
III/35e 2.2.6:4471 
36196 C12H26BPS 
244.19 
B 
S 
H3C 
P 
C12H26BPS III/35a 2.2:1073 
36197 C12H26B9Rh 
370.54 
3-Cp-3,1,2-closo-RhC2B9H11 III/35a 2.2:1074 
36198 C12H26Cl2N2Ru 
370.32 NH2 
NH2 
Ru 
Cl 
Cl 
C2H5 
C2H5 
C12H26Cl2N2Ru III/35c4 2.2:1363 
36199 C12H26NOP 
231.31 O 
CH3 
((S)-2,2-Dimethyl-1-oxo-1.5-phospholan-1-
yl)-diisopropyl-amine 
III/35a 3.2:1079 
P 
N CH3 
H3C CH3 
36200 C12H26NO4P 
279.31 
NH 
HO 
P 
O O C2H5 
O 
C2H5 
(4-Hydroxymethyl-2,5,5-trimethyl-pyrrolidin-
2-yl)-phosphonic acid diethyl ester 
III/35a 3.2:1080 
36201 C12H26O4P2 
296.28 O O 
H5C2 [1-(Diethyl-phosphinoyl)-cyclobutyl]phosphonic 
acid diethyl ester 
III/35a 3.2:1081 
O 
O C2H5 
P 
P 
C2H5H5C2 
36202 C12H27BSi 
210.24 B 
C2H5H5C2 C12H27BSi III/35a 2.2:1075 
Si 
C2H5 
CH3 
36204 C12H27B9N2 
296.65 
See appendix No: 36204 (Bn)NB9H11 
.CNt-Bu III/35a 2.2:1076; 
III/35c4 2.2:1364 
36205 C12H27BrMnN3 
348.2 NBr 
C12H27BrMnN3 III/35c4 2.2:1365 
Mn 
N N 
36206 C12H27ClMnN3 
303.75 NCl 
C12H27ClMnN3 III/35c4 2.2:1366 
Mn 
N N 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36207 C12H27F2P 
240.31 P 
F 
H9C4 
C4H9 C12H27F2P III/35a 3.2:1083 
F 
C4H9 
36208 C12H27F2P 
240.31 
(unknown relative positions) 
P 
F 
H9C4 
C4H9 
C4H9 
Tributyldifluorophosphorane III/35b 2.2:1323 
F 
36209 C12H27NO3Si 
261.43 
Si 
O 
C2H5N 
O 
C2H5 
O C2H5 
(N-piperidino-methyl)triethoxysilane III/35e 2.2.2:3063 
36210 C12H27N2PSSe 
341.36 Se 
C12H27N2PSSe III/35c4 2.2:1367 
P S 
N N 
36211 C12H27O3PSe 
329.27 
Se 
P 
O 
H9C4 
O 
C4H9 
O C4H9 C12H27O3PSe III/35a 3.2:1084 
36212 C12H27PSe 
281.28 
Se 
P 
H9C4 C4H9 
C4H9 C12H27PSe III/35a 3.2:1086 
36213 C12H28AsI 
374.18 
H7C3 
C3H7H7C3 
As(+) 
C3H7 
I(-) 
Tetrapropyl-arsonium iodide III/35c4 2.2:1368 
36214 C12H28B 
183.16 
H9C4 
BH(-) 
C4H9 
C4H9 
C12H28B-III/35a 2.2:1077 
36215 C12H28BClN3P 
291.61 
Cl 
N 
B 
N 
C12H28BClN3P III/35a 2.2:1078 
P 
N 
H5C2 C2H5 
36216 C12H28BNP2 
259.12 
C12H28BNP2 III/35a 2.2:1079 
P 
C2H5 
P 
B N 
C2H5 
36217 C12H28BNSi2 
253.34 
B 
N 
Si Si 
C2H5H5C2 
H3C 
4,5-Diethyl-2,2,3-trimethyl-1-
trimethylsilanyl-2,5-dihydro-1H-
[1,2,5]azasilaborole 
III/35b 3.2:1475 
36218 C12H28B4 
215.59 
(i-Pent)2C2B4H6 III/35a 2.2:1080 
36219 C12H28ClN2P 
266.79 
56183-63-2 H3C 
CH3 
N 
H3C CH3 
P 
N CH3 
CH3Cl 
CH3H3C 
Bis(diisopropylamino)phosphanyl chloride; 
Bis(N,N-diisopropylamino)chlorophosphine; 
Chloro(bis(diisopropylamino))phosphane; 
Chloro-di-N-(diisopropyl)-phosphite 
III/35b 3.2:1476 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36220 C12H28FN2OP 
266.34 
O 
C2H5 C12H28FN2OP III/35b 2.2:1324 
N 
PH5C2 
FNH5C2 
C2H5 
36221 C12H28Li2O 
202.23 
Li 
OH9C4 
Li 
C2H5 
C4H9 
H5C2 C12H28Li2O III/35c4 2.2:1369 
36222 C12H28N2OS 
248.43 
H3C 
CH3 
N 
S 
N CH3 
CH3O C12H28N2OS III/35b 3.2:1478 
H3C CH3 CH3H3C 
36223 C12H28N2S 
232.43 
CH3 CH3 C12H28N2S III/35b 3.2:1479 
S 
H3C N N CH3 
H3C CH3H3C CH3 
36224 C12H28N2Si 
228.45 N 
CH3 
NSi 
H5C2 
H5C2 C2H5 
1-Methyl-4-triethylsilanylmethyl-piperazine III/35b 3.2:1480 
36225 C12H28N2Si3 
284.62 
N 
N 
Si 
Si 
Si 
1,3,4-Tris-trimethylsilanyl-1H-pyrazole III/35c4 2.2:1370 
36226 C12H28O4Te 
363.95 
O 
Te 
O O 
O 
H3C CH3 
CH3H3C 
CH3H3C 
H3C CH3 
C12H28O4Te III/35c4 2.2:1371 
36227 C12H28O6P2Se2 
488.21 
OCH3 
CH3 
O 
C12H28O6P2Se2 III/35a 3.2:1087 
P Se O 
CH3 
CH3 
OH3C Se P 
O 
H3C 
O CH3 
H3C 
36228 C12H28P2 
234.3 
H3C CH3 
CH3 
1,1,2,2-Tetraisopropyl-diphosphane III/35c4 2.2:1372 
P 
PH3C 
CH3 
CH3 
H3C CH3 
36229 C12H28P2S2 
298.43 
H3C 
CH3 
C12H28P2S2 III/35a 3.2:1088 
S CH3 
PH3C 
P CH3 
CH3 CH3S 
H3C 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36230 C12H28P2S3 
330.49 S SH3C CH3 
H3CCH3 C12H28P2S3 III/35a 3.2:1089 
S 
H3C P P CH3 
CH3 CH3 
36231 C12H28P4 
296.25 
P P 
1,2,3-Tri-tert-butyl-tetraphosphetane III/35a 3.2:1090 
PH P 
36232 C12H29BN2 
212.18 
91533-35-6 H5C2 
C2H5 
NH 
B 
N 
Boranediamine, 1-butyl-N'-(1,1-
dimethylethyl)-N,N-diethyl-
III/35a 2.2:1081 
C4H9 
36233 C12H29N2P 
232.35 CH3H3C 
CH3H3C C12H29N2P III/35a 3.2:1091 
H3C N 
PH 
N CH3 
CH3 CH3 
36234 C12H29PSi2 
260.5 
2-Cyclohexyl-1,1,1,3,3,3-hexamethyl-
disilaphosphane; 
III/35a 3.2:1092 
60820-21-5 
P 
Si Phosphine, cyclohexylbis(trimethylsilyl)- 
Si 
36235 C12H30AlB4N 
258.6 
6-AlHNEt3-3,4-Et2C2B4H4 III/35a 2.2:1082 
36236 C12H30Al2O2 
260.33 Al 
C12H30Al2O2 III/35c4 2.2:1375 
OO 
Al 
36237 C12H30BN3 
227.2 
C12H30BN3 III/35a 2.2:1083 
NH 
B 
NHNH 
36238 C12H30BN3O3 
275.2 
CH3 
N 
C12H30BN3O3 III/35a 2.2:1084 
CH3 
O CH3CH3 
B NN 
CH3OOH3C 
36239 C12H30B2 
195.99 HH3C 
CH3 C12H30B2 III/35a 2.2:1085 
BH BH 
HCH3 
CH3 
36240 C12H30B2N4 
252.01 
H3C 
N 
CH3 C12H30B2N4 III/35a 2.2:1086 
B 
N N 
B 
H3C CH3 
N 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36241 C12H30B8 
260.86 
EtCB4H6C(CH2)4CB4H6CEt III/35a 2.2:1087 
36242 C12H30BeN2 
211.39 N 
C12H30BeN2 III/35c4 2.2:1376 
Be 
N 
36243 C12H30Cl2N2Pt 
468.36 
Cl 
NH2 
C6H13 
NH2 
H13C6 Pt 
Cl C12H30Cl2N2Pt III/35b 3.2:1481 
36244 C12H30FN3P 
266.36 
N 
C2H5 
P(+) 
N 
C2H5 
NH5C2 
C2H5 
C2H5 
F 
H5C2 
C12H30FN3P (1+) III/35a 3.2:1093 
36245 C12H30F3Ga3 
440.53 Ga 
F 
Ga 
H5C2 
H5C2 
C2H5 
C2H5 
C12H30F3Ga3 III/35c4 2.2:1377 
FF 
Ga 
H5C2 C2H5 
36246 C12H30Ga2O2 
345.81 Ga 
C12H30Ga2O2 III/35c4 2.2:1378 
OO 
Ga 
36247 C12H30In2O2 
436.0 In 
C12H30In2O2 III/35c4 2.2:1379 
OO 
In 
36248 C12H30NP3 
281.3 N 
H5C2 C2H5 C12H30NP3 III/35a 3.2:1094 
H3C P 
P 
CH3 
P 
CH3 CH3 
36249 C12H30N2Sn2 
439.76 Sn 
N 
Sn 
N 
1,3-Di-tert-butyl-2,2,4,4-tetramethyl-
[1,3,2,4]diazadistannetidine 
III/35b 3.2:1482 
36250 C12H30N3O6P3 
405.3 
C2H5OH5C2 
O 
C2H5 
O 
H5C2 
P 
N 
P 
N 
P 
O 2,2,4,4,6,6-Hexaethoxy-2.5,4.5,6.5-
[1,3,5,2,4,6]triazatriphosphinine 
III/35b 3.2:1483 
OO N 
H5C2C2H5 
36251 C12H30N3P 
247.36 N 
C2H5H5C2 Tris(diethylamino)phosphine III/35b 3.2:1484 
2283-11-6 H5C2 
N 
P 
N 
C2H5 
C2H5C2H5 
36252 C12H30N3PSe 
326.32 NH5C2 
C2H5 
Se 
C12H30N3PSe III/35a 3.2:1095 
P C2H5H5C2 
N N 
C2H5 C2H5 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36253 C12H30N3P3S6 
501.7 
C2H5SH5C2 
S 
C2H5 
S 
H5C2 
P 
N 
P 
N 
P 
S 2,2,4,4,6,6-Hexakis-ethylsulfanyl-
2.5,4.5,6.5-[1,3,5,2,4,6]triazatriphosphinine 
III/35b 3.2:1485 
SS N 
H5C2C2H5 
36254 C12H30N4O3PRe 
495.57 
Re 
O 
O 
O 
N 
C2H5H5C2 
P 
N 
N 
C2H5 
C2H5 
N C2H5 
H5C2 
C12H30N4O3PRe III/35e 2.2.7:4854 
36255 C12H30Ni2O4P2 
417.7 
O CH3 C12H30Ni2O4P2 III/35c4 2.2:1380 
O PP 
Ni Ni 
O 
O CH3 
36256 C12H30P4 
298.26 P 
CH3H3C 
P 
CH3 1-[Bis-(2-dimethylphosphanyl-ethyl)-
phosphanyl]-2-dimethylphosphanyl-ethane 
III/35a 3.2:1096 
P CH3 
H3C 
P 
CH3 
36257 C12H30P4 
298.26 
C12H30P4 III/35a 3.2:1097 
PH 
P 
PH PH 
36258 C12H31AlNP 
247.34 
P 
H5C2 C2H5H5C2 
H5C2 NH 
C2H5 
Al 
C2H5 
C12H31AlNP III/35c4 2.2:1381 
36259 C12H31BrP2Pt 
512.3 PH5C2 
H5C2 C2H5 
PtH Br 
P 
H5C2 C2H5 
C2H5 
C12H31BrP2Pt III/35c4 2.2:1382 
36260 C12H31ClP2Pt 
467.85 PH5C2 
H5C2 C2H5 
C12H31ClP2Pt III/35c4 2.2:1383 
PtH Cl 
P 
H5C2 C2H5 
C2H5 
36261 C12H31Cl3P2PtSn 
657.45 PH5C2 
H5C2 C2H5 
PtH Sn 
Cl 
Cl 
C12H31Cl3P2PtSn III/35c4 2.2:1384 
P 
H5C2 
H5C2 
Cl 
C2H5 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36262 C12H31IP2Pt 
559.3 PH5C2 
H5C2 C2H5 
C12H31IP2Pt III/35c4 2.2:1385 
PtH I 
P 
H5C2 C2H5 
C2H5 
36263 C12H31MnN2O2 P2 
352.27 PH5C2 
H5C2 C2H5 
N 
C12H31MnN2O2P2 III/35c4 2.2:1386 
Mn H 
P 
H5C2 C2H5 
C2H5N 
O 
O 
36264 C12H31NO2Si3 
305.64 N 
C12H31NO2Si3 III/35e 2.2.6:4473 
Si Si 
O O 
Si 
36265 C12H31N3O3Si 
293.48 
C2H5C2H5 O 
N 
C2H5 Tris(N,N-diethylhydroxylamino)silane III/35e 2.2.3:3633 
SiH 
OH5C2 
N 
O 
H5C2 
N 
C2H5 
36266 C12H32AlB4N 
260.62 
4,5--AlH2NEt3-2,3-Et2C2B4H5 III/35a 2.2:1088 
36267 C12H32AlOSi2 
275.53 H5C2 Si 
C12H32AlOSi2 III/35c4 2.2:1387 
AlO 
H5C2 Si 
36268 C12H32BNSn2 
438.58 
H3C CH3 C12H32BNSn2 III/35c4 2.2:1388 
B 
NSn CH3 
Sn CH3 
36269 C12H32CdN2P4 
440.69 
(delocalized system) 
P(-)P 
C12H32CdN2P4 III/35c4 2.2:1389 
NN Cd(2+) 
PP(-) 
36270 C12H32Cl2N7P3 
438.26 
N 
P 
N 
P NHNH 
Cl 
P 
Cl 
H3C 
CH3H3C 
CH3 
C12H32Cl2N7P3 III/35a 3.2:1098 
N NHNH 
CH3H3CH3C CH3 
36271 C12H32NO2Si3 
306.64 NH(+) C12H32NO2Si3 (1+) III/35e 2.2.6:4474 
Si Si 
O O 
Si 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36272 C12H32N2NiP4 
386.98 
(delocalized system) 
P(-)P 
C12H32N2NiP4 III/35c4 2.2:1390 
NN Ni(2+) 
PP(-) 
36273 C12H32N2P4Pt 
523.37 
(delocalized system) 
P(-)P 
C12H32N2P4Pt III/35c4 2.2:1391 
NN Pt(2+) 
PP(-) 
36274 C12H32N2P4Zn 
393.7 
(delocalized system) 
P(-)P 
C12H32N2P4Zn III/35c4 2.2:1392 
NN Zn(2+) 
PP(-) 
36275 C12H32P2Pt 
433.41 
PtP 
H5C2 
H5C2 
C2H5 
P 
C2H5 
C2H5 
C2H5 
H 
H 
C12H32P2Pt III/35c4 2.2:1393 
36276 C12H32P2Pt 
433.41 
PtP 
H5C2 
C2H5 
H 
H C12H32P2Pt III/35c4 2.2:1394 
H5C2 
H5C2 C2H5 
C2H5P 
36277 C12H33ClO3Si4 
373.18 Si 
3-Chloropropyltris(trimethylsilyl)silane III/35e 2.2.6:4475 
O 
SiCl 
O 
O 
Si 
Si 
36278 C12H33Cl2NbSi3 
425.46 Nb 
Si Cl 
Cl 
Si 
Si 
C12H33Cl2NbSi3 III/35c4 2.2:1395 
36279 C12H33Cl2Si3Ta 
513.5 Ta 
Si Cl 
Cl 
Si 
Si 
C12H33Cl2Si3Ta III/35c4 2.2:1396 
36280 C12H34BN2PSi2 
304.37 
CH3 PH2 C12H34BN2PSi2 III/35a 3.2:1205 
B Si 
H3C N N 
Si 
H3C CH3 
36281 C12H34FeP4 
358.14 P 
HP 
C12H34FeP4 III/35c4 2.2:1397 
Fe 
HP 
P 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36282 C12H34Ni2O2P2 
389.73 
Ni 
O 
Ni 
PP 
C2H5 C12H34Ni2O2P2 III/35c4 2.2:1398 
O 
C2H5 
36283 C12H36AuB2P4 
522.9 PP 
C12H36AuB2P4 III/35a 2.2:1089 
BH2AuH2B 
PP 
36284 C12H36BNSi5 
345.66 Si B 
C12H36BNSi5 III/35a 2.2:1090 
Si N 
SiSi Si 
36285 C12H36BSi4 
303.57 Si Si 
C12H36BSi4 (1-) III/35a 2.2:1091 
B(-) 
SiSi 
36286 C12H36B6N6 
329.32 N 
H3C CH3CH3CH3 
C12H36B6N6 III/35a 2.2:1092 
B B 
B N 
CH3 
N 
H3C 
B 
B 
B 
N 
CH3N 
H3C 
CH3N 
H3C CH3 
CH3 
36287 C12H36ClN2PSi4 
387.2 Si P Si 
Cl C12H36ClN2PSi4 III/35b 3.2:1486 
N N 
Si Si 
36288 C12H36Cl6P4W2 
884.71 Cl P 
C12H36Cl6P4W2 III/35c4 2.2:1399 
Cl ClP 
Cl 
W W 
ClP 
PCl 
36289 C12H36HgP2Si4 
555.29 
Hg P 
Si 
Si 
P 
Si 
Si 
C12H36HgP2Si4 III/35c4 2.2:1400 
36290 C12H36LiN7Si2 
341.57 
NH3C 
Li 
N Si 
CH3 
CH3 
H3C 
N 
CH3 
N 
C12H36LiN7Si2 III/35c4 2.2:1401 
Si 
N 
H3C 
N 
CH3 
CH3CH3N 
H3C 
CH3 CH3 
36291 C12H36N2Sn4 
683.19 Sn 
C12H36N2Sn4 III/35c4 2.2:1402 
NSn 
SnN 
Sn 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36292 C12H36N9P3 
399.4 
C2H5NHH5C2 
NH 
C2H5 
NH 
H5C2 
P 
N 
P 
N 
P 
NH C12H36N9P3 III/35b 3.2:1487 
NHHN N 
H5C2C2H5 
36293 C12H36N9P3 
399.4 
CH3NH3C N 
CH3H3C 
C12H36N9P3 III/35b 3.2:1488 
CH3H3C N 
P 
N 
N 
N 
H3C 
N 
CH3 
N P P 
N CH3 
CH3H3C 
H3C 
36294 C12H36NiO12P4 
555.0 
P 
O 
H3C 
H3C 
H3C 
O 
CH3 
CH3 
O 
O 
Ni 
P 
O 
O CH3 
PO 
H3C 
O 
CH3 
O 
H3C 
P 
O 
CH3 
O 
CH3O 
CH3 
C12H36NiO12P4 III/35c4 2.2:1403 
36295 C12H36NiP4 
363.0 PP 
C12H36NiP4 III/35c4 2.2:1404 
Ni 
PP 
36296 C12H36Sn6 
892.55 Sn Sn 
1,1,2,2,3,3,4,4,5,5,6,6-Dodecamethyl-
hexastanninane 
III/35c4 2.2:1405 
SnSn 
SnSn 
36297 C12H37AlB6 
273.27 
B6H10 
.Al(i-Bu)3 III/35a 2.2:1093 
36298 C12H38B18O2Sm 
559.38 
[3,3-(THF)2-commo-3,3'-Sm(3,1,2-
SmC2B8H11)2]-
III/35a 2.2:1094 
36299 C12H38B18O2Yb 
582.07 
[3,3-(THF)2 -commo-3,3'-Yb(3,1,2-
YbC2B8H11)2]-
III/35a 2.2:1095 
36300 C12H38FeP4 
362.17 P 
HP 
C12H38FeP4 III/35c4 2.2:1406 
Fe 
HP 
P 
36301 C12H38NiO4P4S 
461.08 
H 
P 
HO O C12H38NiO4P4S III/35c4 2.2:1407 
Ni(+)P S 
P O(-) O 
P 
36302 C12H38NiO16P4S 
653.07 
See appendix No: 36302 C12H38NiO16P4S III/35c4 2.2:1408 
36303 C12H38O5Si6 
430.94 Si Si 
C12H38O5Si6 III/35e 2.2.6:4477 
O O 
SiHSi SiH Si 
OO O 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - new compounds C12 
36304 C12H38O12P4Ru 
599.39 
See appendix No: 36304 C12H38O12P4Ru III/35c4 2.2:1409 
36305 C12H41B2N5Si4 
389.45 
B 
NH2 
B Si 
NH2 
Si 
C12H41B2N5Si4 III/35a 2.2:1096 
NH NN 
Si Si 
36306 C12H66B6P4Zr3 
673.07 
See appendix No: 36306 C12H66B6P4Zr3 III/35a 2.2:1097 
Landolt-Brnstein 
Index of Organic Compounds H 

500 Index by molecular formula and chemical structure - registered compounds C8 
2.2 Compounds registered in Subvolumes B or E 
19273 
Vol. E 
C8H5F13O 
647-42-7 
3,3,4,4,5,5,6,6,7,7,8,8,8-
Tridecafluorooctan-1-ol 
III/35e 2.2.2:2656 
19274 
Vol. E 
C8H5NO 
613-90-1 
Phenylglyoxylo-nitrile III/35e 2.2.1:619 
19275 
Vol. E 
C8H5NO2 
85-41-6 
Phthalimide III/35e 2.2.1:625 
19277 
Vol. E 
C8H6BrFO 
403-30-5 
1-(4-Bromo-phenyl)-2-fluoro-ethanone III/35b 2.2:481 
19278 
Vol. E 
C8H6BrF3 1-Bromo-4-(2,2,2-trifluoro-ethyl)-
benzene 
III/35b 2.2:482 
19281 
Vol. E 
C8H6Br2F2 (2,2-Dibromo-1,1-difluoro-ethyl)-
benzene 
III/35b 2.2:483 
19283 
Vol. E 
C8H6ClF2NO2 1-(2-Chloro-2,2-difluoro-ethyl)-4-nitro-
benzene 
III/35b 2.2:486 
19284 
Vol. E 
C8H6ClF3 1-Chloro-3-(2,2,2-trifluoro-ethyl)-
benzene 
III/35b 2.2:488 
19285 
Vol. E 
C8H6ClF3O (R,S)-1-(4-Chloro-phenyl)-2,2,2-
trifluoro-ethanol 
III/35b 2.2:490 
19286 
Vol. E 
C8H6ClF3S (R,S)-(2-Chloro-1,2,2-trifluoro-
ethylsulfanyl)-benzene 
III/35b 2.2:492 
19288 
Vol. E 
C8H6F2O Difluoro-phenyl-acetaldehyde III/35b 2.2:501 
19289 
Vol. E 
C8H6F2O 
395-01-7 
2,2-Difluoro-1-phenyl-ethanone III/35b 2.2:499 
19290 
Vol. E 
C8H6F3NO 
23516-79-2 
1-(4-Amino-phenyl)-2,2,2-trifluoro-
ethanone 
III/35e 2.2.1:636 
19292 
Vol. E 
C8H6F3NO2 1-Nitro-4-(2,2,2-trifluoro-ethyl)-
benzene 
III/35b 2.2:506 
19293 
Vol. E 
C8H6F3NO3 1-Nitro-4-(2,2,2-trifluoro-ethoxy)-
benzene 
III/35b 2.2:507 
19305 
Vol. E 
C8H6O2 
553-86-6 
3H-Benzofuran-2-one III/35e 2.2.1:644 
19307 
Vol. E 
C8H6O2 
87-41-2 
3H-Isobenzofuran-1-one III/35e 2.2.1:643 
19318 
Vol. E 
C8H7ClO2 
1126-46-1 
4-Chloro-benzoic acid methyl ester III/35e 2.2.1:663 
19321 
Vol. E 
C8H7FO2 Benzoic acid fluoromethyl ester III/35b 2.2:519 
19322 
Vol. E 
C8H7FO3 3-Fluoro-4-hydroxy-5-methoxy-
benzaldehyde 
III/35b 2.2:523 
19329 
Vol. E 
C8H7F5O 1-Cyclobutylidene-3,3,4,4,4-
pentafluoro-butan-2-one 
III/35b 2.2:534 
19333 
Vol. E 
C8H7NO 
3173-56-6 
Benzyl isocyanate III/35e 2.2.1:685 
19336 
Vol. E 
C8H7NO2 (2-Nitro-vinyl)-benzene III/35e 2.2.3:3490 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - registered compounds C8 
19356 
Vol. E 
C8H8F2 (2,2-Difluoro-ethyl)-benzene III/35b 2.2:542 
19363 
Vol. E 
C8H8N2O2 
614-22-2 
Benzoyl-urea III/35b 3.2:875; III/35e 2.2.1:710 
19369 
Vol. E 
C8H8O2 
137-18-8 
p-Xyloquinone III/35e 2.2.1:722 
19374 
Vol. E 
C8H8O3 
586-38-9 
3-Methoxy benzoic acid III/35e 2.2.1:738 
19381 
Vol. E 
C8H9ClO2 
7051-16-3 
1-Chloro-3,5-dimethoxy-benzene III/35e 2.2.2:2697 
19388 
Vol. E 
C8H9FS (R,S)-(1-Fluoro-ethylsulfanyl)-
benzene 
III/35b 2.2:561 
19390 
Vol. E 
C8H9F3O2 Trifluoro-acetic acid cyclohex-1-enyl 
ester 
III/35b 2.2:563 
19396 
Vol. E 
C8H9N 
496-15-1 
2,3-Dihydro-1H-indole III/35b 3.2:889 
19398 
Vol. E 
C8H9NO 
99-92-3 
Acetophenone, 4'-amino-III/35b 3.2:894; III/35e 2.2.1:753 
19401 
Vol. E 
C8H9NO 
613-93-4 
N-Methyl-benzamide III/35b 3.2:892, 896; III/35e 2.2.1:750 
19406 
Vol. E 
C8H9NO2 
83-41-0 
1,2-Dimethyl-3-nitrobenzene III/35e 2.2.3:3508 
19407 
Vol. E 
C8H9NO2 
2439-77-2 
2-Methoxy-benzamide III/35e 2.2.1:767 
19418 
Vol. E 
C8H10F2O3 3,3-Difluoro-2-oxo-hex-5-enoic acid 
ethyl ester 
III/35b 2.2:573 
19423 
Vol. E 
C8H10N2O 
138-89-6 
N,N-Dimethyl-4-nitroso-aniline III/35b 3.2:921; III/35e 2.2.3:3517 
19448 
Vol. E 
C8H10Se 
17774-38-8 
Ethyl-phenyl-selenide III/35c4 2.2:744 
19452 C8H11FO 2-Fluoro-4,4-dimethyl-cyclohex-2-III/35b 2.2:578 
Vol. E enone 
19456 
Vol. E 
C8H11F3O3 (R,S)-4-Oxo-2-trifluoromethyl-
pentanoic acid ethyl ester 
III/35b 2.2:593 
19457 
Vol. E 
C8H11F5O2 
127258-54-2 
1,1-Difluoro-4-methyl-1-(2,2,2-
trifluoro-ethoxy)-pentan-3-one 
III/35b 2.2:595 
19478 
Vol. E 
C8H12BrF 5-Bromo-6-fluoro-cyclooctene III/35b 2.2:596 
19503 
Vol. E 
C8H12O 
19740-90-0 
5,6-Epoxy-cis-cyclooctene III/35e 2.2.2:2725 
19514 
Vol. E 
C8H12O2 
5323-87-5 
3-Ethoxy-cyclohex-2-enone III/35e 2.2.1:797 
19572 
Vol. E 
C8H14F2O2 2,2-Difluoro-octanoic acid III/35b 2.2:637 
19728 
Vol. E 
C8H16O2 
5340-78-3 
Ethyl 3,3-dimethylbutanoate III/35e 2.2.1:856 
19804 
Vol. E 
C8H18O 
628-55-7 
Diisobutyl ether III/35e 2.2.2:2780 
19807 
Vol. E 
C8H18O 
6163-66-2 
2-tert-Butoxy-2-methyl-propane III/35e 2.2.2:2781 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - registered compounds C8 
19881 
Vol. E 
C8H18O2S 2-Methyl-2-(2-methyl-propane-2-
sulfonyl)-propane 
III/35e 2.2.5:4215 
19903 
Vol. E 
C8H20N2O2S 
2832-49-7 
Tetraethyl-sulfamide III/35b 3.2:1030 
19909 
Vol. E 
C8H23ClO2Si3 
17201-87-5 
3-Chloromethyl-1,1,1,3,5,5,5-
heptamethyl-trisiloxane 
III/35e 2.2.6:4452 
19933 
Vol. E 
C9H5F2NO2 4-Cyano-benzoic acid difluoromethyl 
ester 
III/35b 2.2:675 
19934 
Vol. E 
C9H5F13O 
38565-52-5 
2-(1H,1H-Tridecafluoro-heptyl)oxirane 
III/35e 2.2.2:2791 
19943 
Vol. E 
C9H6F4 (Z)-(2,3,3,3-Tetrafluoro-propenyl)-
benzene 
III/35b 2.2:690 
19959 
Vol. E 
C9H7F3O 
394-59-2 
(Trifluoromethyl)-p-tolyl ketone III/35e 2.2.1:897 
19983 
Vol. E 
C9H8F2 7,7-Difluoro-3,4-dimethyl-
bicyclo[4.1.0]hepta-1,3,5-triene 
III/35b 2.2:720 
19984 
Vol. E 
C9H8F2 (1-Difluoromethyl-vinyl)-benzene III/35b 2.2:718 
19986 
Vol. E 
C9H8F2O 
703-17-3 
2,2-Difluoro-1-phenyl-propan-1-one III/35b 2.2:721 
19988 
Vol. E 
C9H8F2O2 2,2-Difluoro-1-(4-methoxy-phenyl)-
ethanone 
III/35b 2.2:729 
19989 
Vol. E 
C9H8F2O2 2,2-Difluoro-3-phenyl-propionic acid III/35b 2.2:726 
19990 C9H8F2O2 Phenyl-acetic acid difluoromethyl III/35b 2.2:727 
Vol. E ester 
19994 
Vol. E 
C9H8F4OS (R,S)-1-Methoxy-4-(1,2,2,2-
tetrafluoro-ethylsulfanyl)-benzene 
III/35b 2.2:732 
19996 C9H8FeO3 1,3-Cyclohexadienyl-iron-tricarbonyl III/35c4 2.2:851 
Vol. E 
20021 
Vol. E 
C9H9ClF2 1-(2-Chloro-2,2-difluoro-ethyl)-4-
methyl-benzene 
III/35b 2.2:739 
20036 
Vol. E 
C9H9FO 
21120-36-5 
(R,S)-2-Fluoro-1-phenyl-propan-1-one III/35b 2.2:745 
20038 
Vol. E 
C9H9FO 1-Fluoro-3-phenyl-propan-2-one III/35b 2.2:743 
20039 
Vol. E 
C9H9FOS (R,S)-1-Fluoro-1-phenylsulfanyl-
propan-2-one 
III/35b 2.2:748 
20040 
Vol. E 
C9H9FO2 2-Fluoro-1-(4-methoxy-phenyl)-
ethanone 
III/35b 2.2:751 
20042 C9H9FO3 2-Fluoro-3-hydroxy-benzoic acid ethyl III/35b 2.2:753 
Vol. E ester 
20043 
Vol. E 
C9H9FO3 (1-Fluoro-4-oxo-cyclohexa-2,5-dienyl)-
acetic acid methyl ester 
III/35b 2.2:754 
20045 
Vol. E 
C9H9FO3S (R,S)-1-Benzenesulfonyl-1-fluoro-
propan-2-one 
III/35b 2.2:755 
20046 
Vol. E 
C9H9F3 1-Methyl-3-(2,2,2-trifluoro-ethyl)-
benzene 
III/35b 2.2:757 
20049 
Vol. E 
C9H9F3OS (R,S)-(2,2,2-Trifluoro-1-methoxy-
ethylsulfanyl)-benzene 
III/35b 2.2:762 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - registered compounds C9 
20080 
Vol. E 
C9H10FI (R,S)-(1-Fluoro-2-iodo-1-methyl-
ethyl)-benzene 
III/35b 2.2:769 
20081 C9H10FNO2 Benzyl-carbamic acid fluoromethyl III/35b 2.2:772 
Vol. E ester 
20082 
Vol. E 
C9H10F2 2,4-Difluoro-1,3,5-trimethyl-benzene III/35b 2.2:776 
20086 
Vol. E 
C9H10N2 
1197-19-9 
4-Dimethylamino-benzonitrile III/35b 3.2:1069 
20102 
Vol. E 
C9H10OS 
1484-17-9 
Thiobenzoic acid S-ethyl ester III/35e 2.2.1:962 
20106 
Vol. E 
C9H10O2 
99-36-5 
3-Methylbenzoic acid methyl ester III/35e 2.2.1:974 
20108 
Vol. E 
C9H10O2 
603-79-2 
2,3-Dimethyl-benzoic acid III/35e 2.2.1:976 
20114 
Vol. E 
C9H10O2 
632-46-2 
2,6-Dimethyl-benzoic acid III/35e 2.2.1:977 
20122 
Vol. E 
C9H10O3 
121-98-2 
4-Methoxybenzoic acid methyl ester III/35e 2.2.1:986 
20133 
Vol. E 
C9H10O5 
613-75-2 
2-Furanyl-methanediol diacetate III/35e 2.2.1:996 
20147 
Vol. E 
C9H11F3O3 (R,S)-4-Oxo-2-trifluoromethyl-hex-5-
enoic acid ethyl ester 
III/35b 2.2:800 
20153 
Vol. E 
C9H11NO 
588-46-5 
N-Benzyl-acetamide III/35b 3.2:1091 
20154 
Vol. E 
C9H11NO 
103-89-9 
N-(4-Methyl-phenyl)acetamide III/35b 3.2:1098; III/35e 2.2.1:998 
20155 
Vol. E 
C9H11NO 
120-66-1 
N-(2-Methyl-phenyl)acetamide III/35e 2.2.1:997 
20210 
Vol. E 
C9H12Se 
22351-63-9 
Phenyl-propyl-selenide III/35c4 2.2:883 
20222 
Vol. E 
C9H13N 
88-05-1 
2,4,6-Trimethyl-aniline III/35b 3.2:1122 
20298 
Vol. E 
C9H15FO3 (R,S)-2-Fluoro-4,4-dimethyl-3-oxo-
pentanoic acid ethyl ester 
III/35b 2.2:833 
20322 
Vol. E 
C9H16FN Cyclohexyl-(2-fluoro-1-methyl-
ethylidene)-amine 
III/35b 2.2:836 
20323 
Vol. E 
C9H16F2O (R,S)-3,3-Difluoro-non-1-en-4-ol III/35b 2.2:838 
20324 C9H16F2O2 2,2-Difluoro-octanoic acid methyl III/35b 2.2:840 
Vol. E ester 
20325 
Vol. E 
C9H16F2O3 (R,S)-2,2-Difluoro-3-hydroxy-4,4-
dimethyl-pentanoic acid ethyl ester 
III/35b 2.2:842 
20663 
Vol. E 
C9H27BO3Si3 
4325-85-3 
Boric acid tris(
trimethylsilyl) ester III/35e 2.2.6:4458 
20672 
Vol. E 
C10H5F5O Pentafluorobut-1-ynyloxy-benzene III/35b 2.2:863 
20681 
Vol. E 
C10H6F5N (R,S)-2-Pentafluorophenyl-
butyronitrile 
III/35b 2.2:868 
20685 
Vol. E 
C10H6N2O4 
605-71-0 
1,5-Dinitro-naphthalene III/35e 2.2.3:3573 
Landolt-Brnstein 
Index of Organic Compounds H 

504 Index by molecular formula and chemical structure - registered compounds C10 
20686 
Vol. E 
C10H6N2O4 
602-38-0 
1,8-Dinitro-naphthalene III/35b 3.2:1172; III/35e 2.2.3:3574 
20687 
Vol. E 
C10H6O2 
130-15-4 
1,4-Naphthaquinone III/35e 2.2.1:1068 
20688 
Vol. E 
C10H6O4 
475-38-7 
5,8-Dihydroxy-[1,4]naphthoquinone III/35e 2.2.1:1073 
20695 
Vol. E 
C10H7F5O2 3-Pentafluorophenyl-propionic acid 
methyl ester 
III/35b 2.2:877 
20706 
Vol. E 
C10H8F2O 2,2-Difluoro-3,4-dihydro-2H-
naphthalen-1-one 
III/35b 2.2:889 
20707 
Vol. E 
C10H8F2O 4,4-Difluoro-1-phenyl-but-3-en-1-one III/35b 2.2:887 
20710 
Vol. E 
C10H8F6O3 (R,S)-4-Oxo-1-trifluoromethyl-
cyclohex-2-enecarboxylic acid 2,2,2-
III/35b 2.2:897 
trifluoro-ethyl ester 
20733 
Vol. E 
C10H9FO2S (Z)-2-Fluoro-3-methoxy-thioacrylic 
acid S-phenyl ester 
III/35b 2.2:908 
20735 
Vol. E 
C10H9F3 (4,4,4-Trifluoro-but-1-enyl)-benzene III/35b 2.2:914 
20736 
Vol. E 
C10H9F3N2 2-[Methyl-(2,2,2-trifluoro-ethyl)-
amino]-benzonitrile 
III/35b 2.2:917 
20739 
Vol. E 
C10H9F3O2 1-[4-(2,2,2-Trifluoro-ethoxy)-phenyl]-
ethanone 
III/35b 2.2:925 
20740 
Vol. E 
C10H9F3O2S (R,S)-Acetic acid 2,2,2-trifluoro-1-
phenylsulfanyl-ethyl ester 
III/35b 2.2:926 
20741 
Vol. E 
C10H9F3O3 Acetic acid 4-(2,2,2-trifluoro-ethoxy)-
phenyl ester 
III/35b 2.2:928 
20762 
Vol. E 
C10H10ClFO2S (R,S)-(4-Chloro-phenylsulfanyl)-fluoro-
acetic acid ethyl ester 
III/35b 2.2:933 
20772 
Vol. E 
C10H10F2 (R,S)-(E)-(3,4-Difluoro-but-1-enyl)-
benzene 
III/35b 2.2:936 
20773 
Vol. E 
C10H10F2O (R,S)-2,2-Difluoro-1-phenyl-but-3-en-
1-ol 
III/35b 2.2:937 
20774 
Vol. E 
C10H10F2O2 1-(2,2-Difluoro-1-methoxy-vinyl)-4-
methoxy-benzene 
III/35b 2.2:940 
20776 
Vol. E 
C10H10F4 (1,1,2,2-Tetrafluoro-butyl)-benzene III/35b 2.2:944 
20790 
Vol. E 
C10H10O2 
1009-61-6 
1,4-Diacetylbenzene III/35e 2.2.1:1131 
20802 
Vol. E 
C10H10O4 
24262-66-6 
4-Acetoxy-benzoic acid methyl ester III/35e 2.2.1:1142 
20819 
Vol. E 
C10H11F (Z)-(4-Fluoro-but-3-enyl)-benzene III/35b 2.2:951 
20820 
Vol. E 
C10H11FO2 (R,S)-Fluoro-phenyl-acetic acid ethyl 
ester 
III/35b 2.2:962 
20821 
Vol. E 
C10H11FO2 1-Fluoro-3-(4-methoxy-phenyl)-
propan-2-one 
III/35b 2.2:961 
20822 
Vol. E 
C10H11FO2 (R,S)-Acetic acid 2-fluoro-1-phenyl-
ethyl ester 
III/35b 2.2:963 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - registered compounds C10 505 
20824 
Vol. E 
C10H11FO2S (R,S)-Fluoro-phenylsulfanyl-acetic 
acid ethyl ester 
III/35b 2.2:964, 965 
20825 
Vol. E 
C10H11F3O2 4,4,4-Trifluoro-1-phenyl-butane-
(1S,3R)-diol 
III/35b 2.2:970 
20826 
Vol. E 
C10H11F3O3 (R,S)-4-Oxo-2-trifluoromethyl-
cyclohex-2-enecarboxylic acid ethyl 
III/35b 2.2:972 
ester 
20865 
Vol. E 
C10H12F3NO (R,S)-Methyl-phenyl-(2,2,2-trifluoro-1-
methoxy-ethyl)-amine 
III/35b 2.2:982 
20897 
Vol. E 
C10H12O2 
480-63-7 
2,4,6-Trimethyl-benzoic acid III/35e 2.2.1:1174 
20945 
Vol. E 
C10H13F3O 6,6-Dimethyl-2-trifluoromethyl-
cyclohex-1-enecarbaldehyde 
III/35b 2.2:990 
20954 
Vol. E 
C10H13NO 
2124-31-4 
1-(4-Dimethylamino-phenyl)-ethanone III/35e 2.2.1:1193 
20968 
Vol. E 
C10H13NO2 
7291-34-1 
N,N-Dimethyl-(2-methoxy-phenyl)-
formamide 
III/35e 2.2.2:2896 
21013 
Vol. E 
C10H14O2S 
16823-62-4 
(Butane-1-sulfonyl)-benzene III/35e 2.2.5:4269 
21027 
Vol. E 
C10H14Se 
28622-61-9 
Butyl-phenyl-selenide III/35c4 2.2:1036 
21043 
Vol. E 
C10H15NO2 
120-07-0 
N,N-Bis(2-hydroxyethyl)-aniline III/35b 3.2:1265 
21051 
Vol. E 
C10H15O3P 
1754-49-0 
Phenylphosphonic acid diethyl ester III/35e 2.2.4:3796 
21112 
Vol. E 
C10H17NO 
6837-24-7 
1-Cyclohexyl-pyrrolidin-2-one III/35e 2.2.1:1245 
21218 
Vol. E 
C10H20F2 2,2-Difluoro-decane III/35b 2.2:1029 
21313 
Vol. E 
C10H22O 
56762-00-6 
Bis(1-methylbutyl) ether III/35e 2.2.2:2945 
21417 
Vol. E 
C10H24N4 
295-37-4 
1,4,8,11-Tetraaza-cyclotetradecane III/35b 3.2:1323 
21436 
Vol. E 
C10H30O3Si4 
17928-28-8 
1,1,1,3,5,5,5-Heptamethyl-3-
trimethylsilanyloxy-trisiloxane 
III/35e 2.2.6:4464 
21447 
Vol. E 
C11H6F5NO2 (R,S)-Cyano-pentafluorophenyl-acetic 
acid ethyl ester 
III/35b 2.2:1049 
21452 
Vol. E 
C11H7F3O2 (R,S)-4-Hydroxy-4-trifluoromethyl-4H-
naphthalen-1-one 
III/35b 2.2:1057 
21454 
Vol. E 
C11H7NO 
86-84-0 
1-Isocyanato-naphthalene III/35e 2.2.1:1270 
21497 
Vol. E 
C11H11ClF2O (Z)-(3-Chloro-2-ethoxy-3,3-difluoro-
propenyl)-benzene 
III/35b 2.2:1089 
21498 
Vol. E 
C11H11ClF3NO2 (R)-2-(3-Chloro-phenylamino)-3,3,3-
trifluoro-propionic acid ethyl ester 
III/35b 2.2:1091 
21506 
Vol. E 
C11H11FO3 
1479-22-7 
(R,S)-2-Fluoro-3-oxo-3-phenyl-
propionic acid ethyl ester 
III/35b 2.2:1095, 1098 
21507 
Vol. E 
C11H11FO4 (R,S)-Benzoic acid ethoxycarbonyl-
fluoro-methyl ester 
III/35b 2.2:1099 
Landolt-Brnstein 
Index of Organic Compounds H 

506 Index by molecular formula and chemical structure - registered compounds C11 
21508 
Vol. E 
C11H11F3N2 2-[Ethyl-(2,2,2-trifluoro-ethyl)-amino]-
benzonitrile 
III/35b 2.2:1100 
21532 
Vol. E 
C11H12FI (Z)-(1-Fluoro-2-iodo-pent-1-enyl)-
benzene 
III/35b 2.2:1110 
21535 
Vol. E 
C11H12F2O3 (R,S)-2,2-Difluoro-3-hydroxy-3-phenyl-
propionic acid ethyl ester 
III/35b 2.2:1124 
21538 
Vol. E 
C11H12F3NO2 (R)-3,3,3-Trifluoro-2-phenylamino-
propionic acid ethyl ester 
III/35b 2.2:1125 
21600 
Vol. E 
C11H13F (E)-(4-Fluoro-3-methyl-but-3-enyl)-
benzene 
III/35b 2.2:1130 
21601 
Vol. E 
C11H13FO2 (R,S)-2-Fluoro-2-phenyl-propionic 
acid ethyl ester 
III/35b 2.2:1132, 1133 
21603 
Vol. E 
C11H13FO2S (R,S)-Fluoro-p-tolylsulfanyl-acetic acid 
ethyl ester 
III/35b 2.2:1135 
21604 
Vol. E 
C11H13FO2S (R,S)-2-Fluoro-2-phenylsulfanyl-
propionic acid ethyl ester 
III/35b 2.2:1137 
21613 
Vol. E 
C11H13NO 
1201-93-0 
3-Dimethylamino-1-phenyl-propenone III/35e 2.2.1:1348 
21631 
Vol. E 
C11H14F3NO (R,S)-Ethyl-phenyl-(2,2,2-trifluoro-1-
methoxy-ethyl)-amine 
III/35b 2.2:1150 
21707 
Vol. E 
C11H15FOS (R,S)-4-Fluoro-2-methyl-3-
phenylsulfanyl-butan-2-ol 
III/35b 2.2:1155 
21832 
Vol. E 
C11H20OSi2 
14920-92-4 
1,1,3,3,3-Pentamethyl-1-phenyl-
disiloxane 
III/35e 2.2.6:4466 
22116 
Vol. E 
C12H8N2 
230-17-1 
Benzo[c]cinnoline III/35b 3.2:1399 
22118 
Vol. E 
C12H8O2 
262-12-4 
Dibenzo[b,e][1,4]dioxin III/35e 2.2.2:3009 
22127 
Vol. E 
C12H9N3O3 
81944-71-0 
4-Nitro-4'-hydroxyazobenzene III/35b 3.2:1404 
22128 
Vol. E 
C12H9N3O4 
961-68-2 
(2,4-Dinitro-phenyl)-phenyl-amine III/35e 2.2.3:3622 
22139 
Vol. E 
C12H10N2O2 
119-75-5 
(2-Nitro-phenyl)-phenyl-amine III/35e 2.2.3:3626 
22152 
Vol. E 
C12H10O2 
830-81-9 
Acetic acid naphthalen-1-yl ester III/35e 2.2.1:1414 
22153 
Vol. E 
C12H10O2 
1523-11-1 
Acetic acid naphthalen-2-yl ester III/35e 2.2.1:1415 
22161 
Vol. E 
C12H11F5O2 (R,S)-2-Pentafluorophenyl-butyric acid 
ethyl ester 
III/35b 2.2:1230 
22164 
Vol. E 
C12H11N3 
60-09-3 
4-Amino-azobenzene III/35b 3.2:1418 
22168 
Vol. E 
C12H12F2O 1-(2,2-Difluoro-1-methyl-3-phenyl-
cyclopropyl)-ethanone 
III/35b 2.2:1235 
22174 
Vol. E 
C12H12N2 
530-50-7 
1,1-Diphenyl-hydrazine III/35b 3.2:1424 
22197 
Vol. E 
C12H13FO3S (R,S)-2-Fluoro-3-oxo-2-
phenylsulfanyl-butyric acid ethyl ester 
III/35b 2.2:1244 
22198 
Vol. E 
C12H13F3N2 (R,S)-[Ethyl-(2,2,2-trifluoro-ethyl)-
amino]-phenyl-acetonitrile 
III/35b 2.2:1248 
Landolt-Brnstein 
Index of Organic Compounds H 

Index by molecular formula and chemical structure - registered compounds C12 507 
22201 
Vol. E 
C12H13F3O2 (R,S)-6,6,6-Trifluoro-5-hydroxy-1-
phenyl-hexan-3-one 
III/35b 2.2:1253 
22228 
Vol. E 
C12H14F3IN2O2 
127635-95-4 
4-(N',N'-Diethyl-hydrazino)-2,3,5-
trifluoro-6-iodo-benzoic acid methyl 
III/35b 2.2:1262 
ester 
22229 
Vol. E 
C12H14F3NO2 (R)-3,3,3-Trifluoro-2-p-tolylaminopropionic 
acid ethyl ester 
III/35b 2.2:1263 
22291 
Vol. E 
C12H15FO3 2R-Fluoro-3S-hydroxy-2-methyl-3-
phenyl-propionic acid ethyl ester 
III/35b 2.2:1201 
22296 
Vol. E 
C12H15F3O3 (R,S)-3-[5-Methyl-6-oxo-2-(2,2,2-
trifluoro-ethyl)-cyclohex-1-enyl]-
III/35b 2.2:1274 
propionic acid 
22395 
Vol. E 
C12H18F4O4 4,4,5,5-Tetrafluoro-octanedioic acid 
diethyl ester 
III/35b 2.2:1287 
22442 
Vol. E 
C12H18Se 
63866-88-6 
Hexyl-phenyl-selenide III/35c4 2.2:1337 
22445 
Vol. E 
C12H19F3O2 (Z)-3-Trifluoromethyl-hept-2-enoic 
acid tert-butyl ester 
III/35b 2.2:1290 
22451 
Vol. E 
C12H19O3P 
7237-16-3 
Phenyl-phosphonic acid diisopropyl 
ester 
III/35e 2.2.4:3825 
22523 
Vol. E 
C12H23BrF2 1-Bromo-2,2-difluoro-dodecane III/35b 2.2:1308 
22533 
Vol. E 
C12H24F2 2,2-Difluoro-dodecane III/35b 2.2:1317 
22657 
Vol. E 
C12H27O3P 
78-46-6 
Butyl-phosphonic acid dibutyl ester III/35e 2.2.4:3832 
22665 
Vol. E 
C12H28O8Si 
2157-45-1 
Silicic acid tetrakis(
2-methoxy-ethyl) 
ester 
III/35e 2.2.2:3066 
22679 
Vol. E 
C12H36O4Si5 
3555-47-3 
1,1,1,5,5,5-Hexamethyl-3,3-bis-
(trimethylsilanyloxy)-trisiloxane 
III/35e 2.2.6:4476 
Landolt-Brnstein 
Index of Organic Compounds H 

Appendix: large drawings 
Appendix: Large Drawings 
30984 31040 
H3C CH3 OO OO 
S(-)S(-) 
O O O 
Cl 
CH3OO 
H3C 
+ 
H3C 
O 
Cl 
CH3OO 
Fe(+) Fe(+) 
CC 
O 
CO 
C 
O 
C 
C 
O 
Cl3C ONH Cl3C ONH 
31604 31755 
Ph 
SS 
BH 
CH N 
Tc CH BH 
S 
SS 
S BH BH 
Tc BH BH 
BH 
S S 
BH 
31814 
(mixture of isomers (open chain)) 
CH3 
31934 
P 
O O C2H5 
OH3C H3C P 
O O C2H5 
O 
O + O 
C(+) 
O O 
S C2H5CH3 
O S C2H5CH3 
O 
O 
B(-) B(-)H5C2 C2H5 
O O 
C(+) 
CH3 
32059 32140 
CH3 
O CH3 
O 
O P O B 
C H 
Fe 
C H 
CH3 
CH3 
B 
O P O 
BH BH 
H 
O 
CH3 
CH3O BH BH 
H H H 
Landolt-Brnstein 
Index of Organic Compounds H 

Appendix: large drawings 
32141 32631 
O 
O O 
CH3 CH3 
N N 
+ 
BH 
BH 
BH 
BH 
HN(+) 
BH 
C(-) 
CH 
O 
CH3 
CH3S 
S 
NH 
P 
CH3S 
S 
NH 
P 
BH BH 
BH 
BH 
32636 32656 
OO 
O 
OO 
O F 
N(-) 
N(+) 
C2H5ONH 
+ 
N(-) 
N(+) 
C2H5ONH 
N 
Fe(2+) 
N 
O 
B(-) 
OO 
NH3C H3C CH3 
NN N 
O 
B(-) 
OO 
F 
32957 
CH 
BH 
CH 
BH 
N Ph 
33042 
P 
O O C2H5 
O 
C2H5 
S 
NH 
H5C2 P 
O O C2H5 
O 
C2H5 
S 
NH 
H5C2 
+ 
S S 
CH3 CH3 
BH BH 
BH BH 
BH 
BH 
33098 
C2H5 C2H5 
33101 
OH5C2 O OH5C2 O 
O O O O PH5C2 Si PH5C2 Si 
PH5C2 Si PH5C2 Si+ 
O O+ 
O O S S 
S S 
O CH3 O CH3 
CH3 CH3 
33102 
OH5C2 O OH5C2 O 
33114 
NC 
PH5C2 Si PH5C2 Si 
O O+ BH 
SO SO CHCH(-) 
O O 
BH BH 
BHBH 
H 
N(+) 
H 
BHBH 
Landolt-Brnstein 
Index of Organic Compounds H 

Appendix: large drawings 
33132 33137 
H 
BH 
N(+) S BH 
BH 
C(-) 
BH 
BH 
BH 
BH 
BH BH 
BH BH 
N(-) BH 
BH 
H 
H 
N(+) 
BH BHBH 
BH 
BH 
33151 33152 
O O 
O O 
C 
C 
C C O O 
Fe Fe 
Fe 
C 
O 
C 
O 
H 
O 
Os 
Os Os 
B 
C 
C 
CO 
C 
C 
C O 
H 
H 
H 
C 
C 
O 
C 
CH BH O 
O 
O 
C 
O 
CC 
O 
O O O 
33159 
Os 
B 
HC 
O 
CO Os 
H C 
O 
C O 
33685 
O 
O 
O(-) 
O 
P 
O 
O 
P 
O(-)O 
P 
O(-)O 
O(-) 
N 
N 
NH2 
OsC H 
C N N 
O C 
C HO 
O 
C O 
O 
O 
33804 33867 
NH2 NH2 O CH2 O CH2 
N N N N CH3 
NH NH CH3 
N NO 
HO 
HO 
+ NO 
HO 
HO 
N NH 
O 
O 
OH 
O+ 
NH 
O 
OH 
Landolt-Brnstein 
Index of Organic Compounds H 

Appendix: large drawings 
34053 
H11C5 
O 
F 
O 
O 
C2H5 
H11C5 
O 
F 
O 
O 
C2H5+ 
34085 
(-)(-) 
Co(+) Co(+)As As 
BH 
BHBH 
BH 
BH 
BH BH 
BH 
34108 34109 
OH O OH O F F 
H11C5 
F F 
O 
C2H5 
H11C5 
F F 
O 
C2H5+ F 
O O 
O 
CH3 
OH 
H3C 
CH3 
F 
O O 
O 
CH3 
OH 
H3C 
CH3 
+ 
34114 
H5C2 
O O 
CH3 
H5C2 O 
P 
CH3 
NO 
H5C2 
O O 
CH3 
H5C2 O 
P 
CH3 
NO 
+ 
34190 
O 
O 
P CH3O 
CH3 
O 
O 
O 
CH3 
O 
O 
O 
P CH3O 
CH3 
O 
O 
O 
CH3 
O 
+ 
34191 
O 
O CH3 
O O 
O CH3 
O 
34199 
H3C 
CH3 
H3C 
CH3 
P CH3OO O 
CH3 
O 
P CH3OO O 
CH3 
O 
+ 
P 
O 
OO 
H3C 
CH3 
CH2 P 
O 
OO 
H3C 
CH3 
CH2 
+ 
F F 
34271 
O O C2H5 
S O O C2H5 
S 
34314 
P 
O 
C2H5NH 
H7C3 P 
O 
C2H5NH 
H7C3 
+ 
S S 
(-) 
H3C H3C 
Co(+) H 
HB 
BH 
H 
BH2 
H 
H 
BH2 
34365 34634 
O O O H3CO O H3CO 
C C N CH3 C C N CH3 
C CO O CrCO CrCO+ 
O OC C C C C C 
OsC C 
O O O O 
H 
OsOs 
PHC 
CO C O 
C 
O O 
CF3 
Landolt-Brnstein 
Index of Organic Compounds H 

Appendix: large drawings 
34707 34728 
Cl CF3 
N 
CH3SN 
N 
H3C O CF3 
CH3 O 
+ + 
Cl 
N 
CF3 
CH3SN 
N 
H3C O CF3 
CH3 O 
34799 
Cr(-) 
NH(+) 
O 
O 
C 
C 
O 
C 
O 
C O 
H3C 
C 
H5C2 
H3C Cr(-) 
NH(+) 
O 
O 
C 
C 
O 
C 
O 
C O 
H3C 
C 
H5C2 
H3C+ 
34844 
NO2 
NO2 
O 
P 
O 
O 
O 
H3C 
H3C 
+ 
H3C 
H3C 
NO2 
NO2 
O 
P 
O 
O 
O 
34854 34885 
N SS H3C H3C 
N P 
NHN 
O 
O 
P 
O 
+ O 
O 
P 
O 
H5C2 
CH3 
O NO2H3C 
O 
H3C NO2 
O 
+ 
N SS 
N P 
NHN 
H5C2 
CH3 
O 
34886 34887 
H3C H3C H3C H3C 
OO 
OO 
OO 
OO 
OP OP+ OP + OP 
O O O O 
NO2H3C NO2H3C NO2H3C H3C NO2 
34984 
Ph 
S 
F 
P 
O C2H5 
O 
C2H5 
O 
Ph 
S 
F 
P 
O C2H5 
O 
C2H5 
O 
+ 
34985 
Ph 
S 
O O 
F 
P 
O 
C2H5 
O C2H5O 
+ Ph 
O 
S 
O 
F 
P 
O 
C2H5 
O C2H5O 
34995 
N 
CH3 
H3C 
O 
COOH 
N 
CH3 
H3C 
O 
COOH 
+ 
35100 
O 
Si 
CH2 
Br + Si 
O 
CH2 
Br 
N CH3O 
CH3 
N CH3O 
CH3 
O CH3 O CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Appendix: large drawings 
35127 35128 
OH O(-) OH O(-) 
NN(+) CH3H3C CH3 H3C 
NN(+) CH3 CH3 
Co Co 
N(+)NH3C N CH3 H3C 
N(+)N 
C(-) CH3 
OHO(-) OHO(-) 
N(+) 
CH3 CH3 
35129 
H3C 
I F F 
P 
O 
O 
OO 
C2H5 
C2H5 
35161 
H15C7 
S 
F 
O 
O 
C2H5 + 
H15C7 
S 
F 
O 
O 
C2H5 
+ 
I F F 
H3CO 
P C2H5 
O OO 
C2H5 
35185 
CH2 
O 
CH3P 
O 
O 
H5C2 
O C2H5 
35195H9C4 
I F F 
P 
O 
O 
C2H5 
O C2H5 
+ + 
CH2 I F F 
CH3P 
O 
H5C2 H9C4P 
O 
C2H5 
OO O C2H5 O O C2H5 
35197 35198 
H3C O O 
CH3N 
H3C 
N 
O O 
CH3 
H3C 
N 
O O 
CH3 
H3C 
N 
O O 
CH3 
S 
O 
CH3O 
P + S P 
O O 
CH3 S P 
O O 
CH3 + S P 
O O 
CH3 
O O O O 
CH3 CH3 CH3 CH3 
35199 35200 
H3C O O 
CH3N 
H3C 
N 
O O 
CH3 
H3C 
N 
O O 
CH3 
H3C 
N 
O O 
CH3 
O 
O 
CH3O 
P + O P 
O O 
CH3 O P 
O O 
CH3 + O P 
O O 
CH3 
O O O O 
CH3 CH3 CH3 CH3 
Landolt-Brnstein 
Index of Organic Compounds H 

Appendix: large drawings 
35202 
CH3 
H3C 
N 
CH3 
N 
CH3 
CH3 
N 
N 
S 
CH3 
H3C 
CH3 
H3C 
N 
CH3 
N 
CH3 
CH3 
N 
N 
S 
CH3 
H3C 
+ 
35230 
H5C2 O 
P 
O O 
H5C2 
O 
O 
Si 
C2H5 
F 
H5C2 O 
P 
O O 
H5C2 
O 
O 
Si 
C2H5 
F 
+ 
35274 
Co 
Co 
Co 
Fe 
C 
O 
C 
O 
C 
O 
C 
O 
C 
O 
O 
O O 
C 
O 
C 
O 
C 
O 
C 
O 
H 
35312 
F3C 
CH2 
O 
CF3 
S 
CF3 
O O 
F3C 
CH2 
O 
CF3 
S 
CF3 
O O 
+ 
35217 
BH BH 
BH 
BH 
BH 
BH 
BH 
BHC(-) BH 
BH 
BH 
F 
F 
N(+) 
35265 
Co Co 
Co 
Co 
C 
O C 
O 
C 
O 
C 
O 
C 
O 
C 
O 
C 
O 
C 
O 
C 
O 
O O 
O 
35283 
Os Os 
Os 
C 
O 
C 
O 
C 
O 
C 
O 
C 
O C 
O 
NH 
H3C 
P 
CF3 
C 
O 
C 
O 
C 
O 
H 
35323 
Fe 
B 
Fe 
BBH 
Fe 
Fe 
BH 
C 
O 
C 
O 
C 
O 
H 
HH 
C 
O 
C 
O 
C 
O 
H 
C O 
C 
O 
C 
OH 
H 
C 
O 
C 
O 
C 
O 
F 
F 
F 
Landolt-Brnstein 
Index of Organic Compounds H 

Appendix: large drawings 
35324 35325 
O O 
O O 
C O C O 
Fe 
HC 
H 
C 
C O Fe 
HC 
H 
C 
C OH 
BH 
B 
BFe 
BH OH 
O 
C 
C H B 
B 
BFe 
B OH 
O 
C 
C H 
Fe 
Fe 
C 
C 
O 
C 
H 
O 
C 
C C 
H 
O Fe 
Fe 
C 
C 
O 
C 
H 
O 
C 
C C 
H 
O H 
O O O O 
O O 
35431 35457 
Cl Cl CH2 
O O O CF3 
S 
OCl 
C2H5 
Cl 
+ 
O 
C2H5 
O 
CF3H3C 
O O 
NHN NHN + 
CH2 
O CF3 
S 
O 
CF3H3C 
O O 
35477 35794 
O O O O 
O(-) CH3 
NH(+) N 
N 
O(-) 
NH(+) N 
N+ 
CH3 
CH3S 
H3C 
H3C 
N N 
S 
CH3S 
H3C 
H3C 
N N 
S 
+ 
35802 35803 
CH3 CH3 O O 
O 
ON 
O 
ON CH3 
N 
CH3 
N 
CH3ONH ONH 
+ CH3 O C2H5S O C2H5S 
+ 
ON ON 
Ph Ph 
35921 
CH3O 
O 
H3C 
H5C2 
O 
NN 
N 
N 
O 
O 
H3C 
H5C2 
O 
NN 
N 
N 
+ 
CH3 
35922 
(-) 
(delocalized system) 
CH3 
CH(-) 
Ni(2+) 
+ 
CH(-) 
(-) 
CH3 
Ni(2+) 
Landolt-Brnstein 
Index of Organic Compounds H 

Appendix: large drawings 
35977 35978 
H3C H3C 
OO 
OO 
OP OP 
O 
CH3O 
H3C O 
CH3O 
H3C 
+ + 
H3C H3C 
OO 
OO 
OP OP 
O 
CH3O 
H3C O 
CH3O 
H3C 
35983 35984 
F 
O 
B(-) 
OO 
OO 
O(-)Cl 
O 
O 
O 
N(+) 
NN NH3C H3C CH3 CH3 
Fe(2+) + 
NN 
O 
B(-) 
O 
F 
N 
O 
H3C H3C CH3 OO 
O(-)Cl 
O 
CH3 
O 
O 
N(+) 
35991 36169 
(delocalized system) 
NF3C 
OO 
H3C 
S 
O O 
F3C 
O 
H3C 
+ 
N 
O 
S 
O O W O CH3 
H2O 
O CH3 
OH3C 
OH3C O 
Cl 
O 
O 
CH3 
O O O 
CH3 W W 
O(+)O(+) 
O 
O 
O 
O 
O(-) 
O 
O 
O 
H2O H2OO O 
O O Cl 
O(-) O 
CH3 
CH3 
36177 36178 
H3C O O 
CH3NH5C2 
H3C 
NH5C2 
O O 
CH3 
H3C O O 
CH3NH5C2 
H3C 
NH5C2 
O O 
CH3 
O 
O 
O 
CH3O 
P 
O 
O 
O 
CH3O 
P+ 
O 
O 
O 
CH3O 
P 
O 
O P+ O 
CH3O 
O O O O 
CH3 CH3 CH3 CH3 
36204 
BH 
BH 
BHBH 
BH 
N(-) BH 
BH 
BH 
BH 
H 
H 
Ph 
N(+) 
36302 
H 
O 
O 
O 
O 
O 
O 
O 
O 
O 
Ni(+) 
P 
P 
P 
P 
O 
O 
O 
H3C 
H3C 
H3C 
H3C 
CH3 
CH3 
CH3 
CH3 
CH3 
CH3 
H3C CH3 
S 
O(-) 
HO O 
O 
Landolt-Brnstein 
Index of Organic Compounds H 

Appendix: large drawings 
36304 
Ru 
H 
P 
P 
H 
P 
O 
O 
OO 
O 
O 
PO 
O 
O 
O 
O O 
CH3 
CH3 
CH3 
H3C 
H3C 
H3C 
H3C 
H3C 
H3C 
CH3 
CH3 
CH3 
36306 
Zr(3+) 
P 
P 
H4B(-) 
H4B(-) 
H 
Zr(3+) 
H 
H 
H4B(-) 
P 
P 
H 
Zr 
H 
H 
BH4(-) 
BH4(-) 
BH4(-) 
Landolt-Brnstein 
Index of Organic Compounds H 

