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
2-(1,6-dihydro-1-methyl-6-oxo-3-pyridinyl)-4-Oxazolecarboxylic acid 2068126-83-8
Tert-butyl 2-amino-2-(thiophen-3-yl)acetate 1910805-11-6
tert-butyl 2-amino-3-(5-bromo-1H-indol-3-yl)propanoate 1922840-22-9
tert-butyl 4-amino-3,4-dihydro-2H-1-benzopyran-4-carboxylate 1993316-81-6
Tert-butyl 2-amino-2-[2-(trifluoromethoxy)phenyl]acetate 1922861-28-6
1-(2-Methoxy-5-methylbenzenesulfonyl)-4-(thiophen-3-yloxy)piperidine 2097857-11-7
Tert-butyl n-{octahydro-1h-cyclopenta[c]pyridin-5-yl}carbamate 1934530-47-8
tert-ButylN-{5-aminospiro[3.3]heptan-2-yl}carbamate 1935471-36-5
Tert-butyl (5-oxooctahydropentalen-2-YL)carbamate 1934426-37-5
Rel-tert-butyl (2S,3S)-3-amino-2-(trifluoromethyl)piperidine-1-carboxylate 1368341-01-8
8-Bromo-3-methyl-1H-pyrrolo[3,2-f]quinolin-2(3H)-one 2097993-95-6
3-(Pyridin-2-yl)-[1,2,4]triazolo[4,3-b]pyridazine-6-thiol 2097932-86-8
3-[6-(3-Nitrophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-3-yl]pyridine 2098117-38-3
2-(2-((6-(4-Fluorophenyl)pyridazin-3-yl)oxy)ethyl)isoindoline-1,3-dione 2097937-36-3
2-[(Tert-butoxy)carbonyl]-octahydropyrrolo[1,2-a]piperazine-1-carboxylic acid 2243503-41-3
4-amino-N-methylbut-2-enamide 1868921-77-0
4-[(Dimethylamino)methyl]-1-methyl-1H-pyrazole-3-carboxylic acid 2091368-80-6
ethyl 4-(2-aminoethyl)-1-methyl-1H-pyrazole-3-carboxylate 2106681-20-1
ethyl 4-(azidomethyl)-1-methyl-1H-pyrazole-3-carboxylate 1657020-85-3
4-[(9H-Fluoren-9-ylmethoxycarbonylamino)-methyl]-cyclohexa-1,5-dienecarboxylic acid 2565806-76-8
[5-Chloro-2-(2-dimethoxymethyl-phenylsulfanyl)-phenyl]-methanol 2565807-40-9
1-Tert-butyl 4-methyl 4-(prop-2-yn-1-yl)piperidine-1,4-dicarboxylate 2199503-30-3
tert-Butyl 3-(5-bromopyridin-2-yl)pyrrolidine-1-carboxylate 1245914-48-0
5-(2-Fluorophenyl)-1H-pyrrole-2-carboxylic acid 2092234-66-5
2-((3-(4-Hydroxytetrahydro-2H-pyran-4-yl)prop-2-yn-1-yl)oxy)benzaldehyde 2108806-22-8
3-Bromo-1-(methoxymethyl)-n,n-dimethyl-1h-1,2,4-triazol-5-amine 2090280-13-8
2-(3-Chloro-1h-1,2,4-triazol-1-yl)isonicotinic acid 2090414-76-7
4-(3-Azidopropoxy)-3,5-dimethoxybenzoic acid 2096986-74-0
(2,2-Dimethyltetrahydrofuran-3-yl)methanol 39161-14-3
2-(4-Methoxyphenyl)hexahydropyrrolo[3,4-c]pyrrol-1(2h)-one 2096987-47-0
1-Benzyl-7a-methylhexahydropyrrolo[3,4-d][1,3]oxazin-2(1H)-one 2104152-62-5
FC1=CC=C(CC2C(N(C(N(C2=O)C)=O)C)=O)C=C1 2027543-02-6
N-(2,6-difluorophenyl)-3-(quinoxalin-2-yloxy)pyrrolidine-1-carboxamide 2097916-76-0
1-(6-cyclopropylpyridazin-3-yl)-N-(6-methoxypyridin-3-yl)piperidine-3-carboxamide 2097888-30-5
4-nitro-N-[(1,2,3,4-tetrahydroisoquinolin-1-yl)methyl]benzene-1-sulfonamide 2031755-49-2
1-[1-(2-Nitrobenzenesulfonyl)pyrrolidin-3-yl]piperazine 2040733-73-9
(1r,3r)-3-[(5-Fluoropyridin-3-yl)oxy]cyclobutan-1-amine 2379587-42-3
2-Ethyl-4-(2,2,3,3-tetramethylcyclopropyl)-1,3-thiazole 2060062-83-9
tert-butyl (2S)-2-[3-(3,3-dimethylbutanesulfonyl)propyl]pyrrolidine-1-carboxylate 1670273-32-1
N-{[2-(methoxymethyl)pyrrolidin-2-yl]methyl}-2-nitrobenzene-1-sulfonamide 2030836-04-3
N-{[2-(methoxymethyl)pyrrolidin-2-yl]methyl}-4-nitrobenzene-1-sulfonamide 2037390-63-7
2,4-Dichloro-3-methylmandelic acid 1803779-89-6
3,4-Dichloro-5-methylmandelic acid 1803813-44-6
3,5-Dichloro-4-methylmandelic acid 1804896-70-5
3,6-Dichloro-2-methylmandelic acid 1806347-63-6
3,5-Dichloro-4-methylphenylacetic acid 1803780-33-7
Ethyl 2,3-dichloro-5-methylphenylacetate 1806304-59-5
3,4-Dichloro-5-methylphenylacetonitrile 1806284-83-2
3,4-Dichloro-5-nitroaniline 1806348-70-8
3,6-Dichloro-2-nitrobenzenesulfonamide 1806305-01-0

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