CAS Number Index

A CAS Registry Number,also referred to as CASRN or CAS Number, is a unique numerical identifier assigned by the Chemical Abstracts Service (CAS) to every chemical substance described in the open scientific literature (currently including all substances described from 1957 through the present, plus some substances from the early or mid 1900s), including organic and inorganiccompounds, minerals, isotopes, alloys and nonstructurable materials (UVCBs, of unknown, variable composition, or biological origin).The registry maintained by CAS is an authoritative collection of disclosed chemical substance information. It currently identifies more than 144 million unique organic and inorganic substances and 67 million protein and DNA sequences,plus additional information about each substance. It is updated with around 15,000 additional new substances daily.（information coming from wikipedia.org)

Name CAS Number
Tert-butyl ethyl adipate 52221-09-7
2-Propenal, 3-(4-methylphenyl)-3-(methylthio)-, (Z)- 66447-34-5
N1-(4-methoxybenzyl)-N2-(2-(1-propyl-1,2,3,4-tetrahydroquinolin-6-yl)ethyl)oxalamide 955594-46-4
(2S,3aR,4S)-4-hydroxy-2,4-dimethyl-3,3a-dihydro-2H-imidazo[1,2-a]indol-1-one 496961-88-7
Methyl 4-(2-methoxy-2-oxoacetyl)benzoate 52812-74-5
4-Hydrazinosalicylic acid 36366-86-6
N-(3-bromo-5-nitrophenyl)acetamide 231287-74-4
4-(Tert-butyl-dimethyl-silanyloxy)-3,3-dimethyl-butyronitrile 225245-20-5
2,6-Dimethyl-3,4-dihydro-2H-pyran-4-one 16000-13-8
1H-Indole-5,6-diyl dibutyrate 113370-34-6
N-(5-Chloro-2-nitrophenyl)thiourea 77185-82-1
1-(Bromomethyl)-2-(methoxymethoxy)benzene 73406-52-7
CID 10977313 181472-52-6
4-(4-Vinylbenzyl)morpholine 4072-76-8
N-((2-oxo-3-phenyloxazolidin-5-yl)methyl)benzamide 367925-78-8
Imidodicarbonic acid, 2-(5-oxopentyl)-, 1,3-bis(1,1-dimethylethyl) ester 177899-22-8
N-Phenyl-I+/--[(phenylthio)methyl]benzenemethanamine 193537-12-1
1-(3-Bromopropanesulfonyl)-4-fluorobenzene 1082893-80-8
3-(3-(Benzyloxy)-4-hydroxyphenyl)propanoic acid 263277-10-7
Methyl 2-(2-isobutoxyphenyl)acetate 268564-38-1
2-(4-Methoxyphenylthio)ethanamine hydrochloride 79270-77-2
6-Nitro-4-octyl-2H-1,4-benzothiazin-3(4H)-one 625090-38-2
2,5-Difluoro-4-iodobenzoic acid 501433-01-8
1-methyl 4-prop-2-en-1-yl (2R)-2-{[(tert-butoxy)carbonyl]amino}butanedioate 368443-50-9
2-[[1-(Phenylmethyl)-4-piperidinyl]amino]benzonitrile 115661-39-7
N-[3-[[(1,1-Dimethylethoxy)carbonyl]amino]propyl]glycine 1,1-dimethylethyl ester 367955-13-3
3-Benzenesulphonyl-5-methyl-2-methylsulphanyl-pyrazolo[1,5-a]pyrimidin-7-ol 1334498-24-6
1-(2,5-Dimethylphenyl)-4-methylpiperazine 180336-55-4
2-Chloromethyl-4-fluoro-phenylisocyanate 67098-96-8
4-Methyl-5-nitro-2,6-bis(phenylmethoxy)pyrimidine 30958-38-4
3-(4-Benzyloxyphenyl)-2-ethoxypropanoic acid ethyl ester 223126-28-1
Tris(3-fluorophenyl)antimony 53547-70-9
2-Amino-3-hydroxy-3-(4-methylthiophenyl)propionic acid 1465041-80-8
2-[[4-(4-morpholinyl)-1,2,5-thiadiazol-3-yl]oxy]Acetaldehyde 66492-32-8
Ethyl 5-(bromomethyl)picolinate 55876-86-3
Tert-butyl 3-(4-cyanophenyl)azetidine-1-carboxylate 206446-41-5
3-Phenyl-1,2,4-oxadiazole-5-undecanamine 41470-97-7
Trimethyl(2,3,4-trifluorophenyl)silane 363598-55-4
Methyl (R)-1-methyl-2-oxocyclohexane-1-carboxylate 89656-82-6
N,2-Dimethyl-8-nitropyrazolo[1,5-a]-1,3,5-triazin-4-amine 55457-64-2
1-Benzyl-6-bromo-1,2-dihydropyridin-2-one 173442-44-9
Methyl 20-methyl-heneicosanoate 91183-91-4
Methyl (1R,2S)-2-(hydroxymethyl)cyclopropane-1-carboxylate 31443-73-9
5-Isopropyl-1H-pyrazole-3-methanol 493038-56-5
3-(2-Methylthiazol-4-yl)acrylaldehyde 226940-34-7
2-Trimethylsilyloxy-1,3-cyclopentadiene 63559-16-0
benzyl N-(hex-5-en-3-yl)carbamate 441071-00-7
4,6-Dimethylisophthalaldehyde 25445-41-4
2,5-Dideoxy-2,5-iminogalactitol 158799-31-6
3-bromo-5-fluoro-1H-1,2,4-triazole 42297-30-3

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