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 4-amino-2-isobutoxybenzoate 1203448-95-6
Ethyl 2-(5-(((benzyloxy)carbonyl)amino)pyridin-2-yl)-2-methylpropanoate 1462288-92-1
4'-Chloro-2,6-dimethyl-[1,1'-biphenyl]-4-carbaldehyde 1462937-60-5
3,3-Diethyl-1-(4-methoxybenzyl)-5-methylpyrrolidin-2-one 1462286-48-1
1-(2-Chloro-4-pyrimidinyl)-3-methyl-2-oxo-3-pyrrolidinecarbonitrile 1462286-97-0
Ethyl 2-(4-(1,6-dihydro-6-oxopyrimidin-2-ylamino)-1h-pyrazol-1-yl)-2-methylpropanoate 1462289-91-3
1-(2-Chloro-4-pyrimidinyl)-3,3-diethyl-5-methyl-2-pyrrolidinone 1462286-51-6
Ethyl 2-methyl-2-(5-nitropyridin-2-yl)propanoate 1462288-87-4
N-(2-(4-nitro-1H-pyrazol-1-yl)ethyl)methanesulfonamide 1462289-94-6
Tert-butyl 2-isobutoxy-4-nitrobenzoate 1462288-52-3
1-(2-Chloropyrimidin-4-yl)-3-isopropyl-2-oxopyrrolidine-3-carbonitrile 1462286-16-3
Tert-butyl 4-amino-2-ethoxybenzoate 1462288-36-3
Tert-butyl 4-nitro-2-(2,2,2-trifluoroethoxy)benzoate 1462288-45-4
2-methyl-2-(4-nitro-1H-pyrazol-1-yl)propanamide 1462287-61-1
Ethyl 3-cyclopropyl-1-(2-((4-morpholinophenyl)amino)pyrimidin-4-yl)-2-oxopyrrolidine-3-carboxylate 1462285-67-1
1H-Pyrazole-1-acetic acid, 4-[[4-[(3R)-3-cyano-3-ethyl-2-oxo-1-pyrrolidinyl]-2-pyrimidinyl]amino]- 1462289-25-3
Tert-butyl 3-(ethoxycarbonyl)-3-cyano-3-cyclopropyl-2-methylpropylcarbamate 1462289-95-7
2-(4-((tert-butoxycarbonyl)amino)-1H-pyrazol-1-yl)-2-methylpropyl methanesulfonate 1462287-69-9
Ethyl 3-cyclopropyl-2-oxopyrrolidine-3-carboxylate 1462290-23-8
1-(4-Nitro-1H-pyrazol-1-yl)cyclobutanemethanol 1462287-97-3
(3R)-1-(2-chloropyrimidin-4-yl)-3-cyclopropyl-2-oxopyrrolidine-3-carbonitrile 1462287-41-7
tert-butyl 2-methyl-2-(4-nitro-1H-pyrazol-1-yl)propanoate 1462287-53-1
1-(4-Methoxybenzyl)-3-ethylpyrrolidin-2-one 1462286-36-7
1-(2-Chloro-4-pyrimidinyl)-3-ethyl-2-oxo-3-pyrrolidinecarbonitrile 1462286-09-4
1-(2-Chloro-4-pyrimidinyl)-3-methyl-2-pyrrolidinone 1462286-26-5
1-(4-Fluorobenzoyl)-3-methyl-2-oxo-3-pyrrolidinecarbonitrile 1462286-92-5
1-(2-Chloro-5-fluoro-4-pyrimidinyl)-3,3-dimethyl-2-pyrrolidinone 1462286-35-6
4-(4-Aminophenyl)tetrahydro-n-methyl-2h-pyran-4-carboxamide 1462288-79-4
tert-butyl 2-(4-amino-1H-pyrazol-1-yl)-2-methylpropanoate 1462287-54-2
Ethyl 4-((tert-butoxycarbonyl)amino)-2-cyano-2-cyclopropylbutanoate 1462287-21-3
2-methyl-2-(4-nitro-1H-pyrazol-1-yl)propyl methanesulfonate 1462287-76-8
1-(2-Chloro-4-pyrimidinyl)-3,3-diethyl-2-pyrrolidinone 1462286-30-1
2-(5-Aminopyridin-2-yl)-2-methylpropanamide 1462289-03-7
2-methyl-2-(4-nitro-1H-pyrazol-1-yl)propan-1-ol 1393100-44-1
1-(4-Fluorobenzoyl)-3-isopropyl-2-oxopyrrolidine-3-carbonitrile 1462286-12-9
Ethyl 4-((tert-butoxycarbonyl)amino)-2-cyano-2-cyclobutylbutanoate 1462289-88-8
Tert-butyl 2-cyclopropyl-4-nitrobenzoate 1462289-69-5
4-(4-aminophenyl)tetrahydro-2H-pyran-4-carboxamide 1462288-69-2
N-methyl-N-4-piperidinylCarbamic chloride 1391919-93-9
N-tert-butyl-2-(6-(3,5-dimethylisoxazol-4-yl)pyridin-3-yl)imidazo[1,2-a]pyrazin-3-amine 1635437-47-6
6-Chloro-N-(1,1-dimethylethyl)-2-[4-(3,5-dimethyl-4-isoxazolyl)phenyl]imidazo[1,2-a]pyridin-3-amine 1635437-40-9
N-tert-butyl-2-(4-(3,5-dimethylisoxazol-4-yl)phenyl)imidazo[1,2-a]pyrimidin-3-amine 1635437-38-5
4-Chloro-3-(3-fluorophenyl)pyridin-2-amine 1381941-71-4
2-(2,5-Dichlorophenyl)pyrimidin-4-amine 1596813-45-4
4-(Chloromethyl)-1,4-dimethylpiperidine hydrochloride 1803583-62-1
3-(2-Amino-1-hydroxypropan-2-yl)phenol hydrochloride 1803603-59-9
2-(2,2-Dimethylpropyl)butanedioic acid 1803601-15-1
2-Fluorocyclopentane-1-sulfonyl chloride 1803596-06-6
N-{imidazo[1,2-b]pyridazin-6-yl}pyrrolidin-3-amine 1804129-39-2
2-Amino-4,4-difluoro-4-phenylbutan-1-ol 1602449-28-4

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