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
4-(3-Fluoro-2-hydroxyphenyl)but-3-en-2-one 790720-63-7
4-Amino-2-(4-benzyl-1-piperazinyl)-5-pyrimidinecarbonitrile 1019017-12-9
5-Fluoro-1-pentyne 764-36-3
Ethyl 5-(4-(trifluoromethoxy)phenyl)-1,2,4-thiadiazole-3-carboxylate 851225-42-8
tert-Butyl 4,6-dibromo-2,3-dioxoindoline-1-carboxylate 927418-43-7
(S)-14-Methylhexadecanoic acid 5746-59-8
2-Nitro-5-(pyrrolidin-1-yl)phenol 884850-25-3
N-(4-chloro-2-fluorophenyl)-2-{[4-(3,5-dimethylphenyl)-3-oxo-3,4-dihydropyrazin-2-yl]sulfanyl}acetamide 899724-41-5
ethyl 2-(6-chloro-5-methyl-1-oxo-2,3-dihydro-1H-inden-2-yl)-2-oxoacetate 919078-01-6
(+/-)-trans-Nicotine-1'-oxide 1797884-23-1
3,3-Diethylpiperidine 37832-45-4
Cytopiloyne 927652-36-6
N-(2-chlorobenzyl)-N-(furan-2-ylmethyl)thiophene-2-carboxamide 879936-96-6
1-(Butane-1-sulfonyl)piperidin-4-amine 926231-89-2
8-chloro-6-(trifluoromethyl)-N-[3-(trifluoromethyl)phenyl]imidazo[1,2-a]pyridine-2-carboxamide 353258-67-0
Ethyl 2-((3-(4-methoxyphenyl)-4,5-dihydroisoxazol-5-yl)methyl)-3-oxobutanoate 890095-39-3
ethyl (2S,6S)-2,4-dimethyl-3,6-dihydro-2H-2,6-methano-1,3-benzoxazocine-5-carboxylate 1212138-74-3
6-Amino-5-((dimethylamino)methyl)-1-(furan-2-ylmethyl)pyrimidine-2,4(1H,3H)-dione 890095-70-2
1-(pyridin-2-yl)-1H-indole-3-carbaldehyde 890095-85-9
2-(4-((2,5-Dimethoxy-4-methylphenyl)sulfonyl)piperazin-1-yl)ethanol 942864-08-6
4,1'-Dihydroxy thalidomide 478785-10-3
4-(4-Chlorophenyl)-2-piperazinyl-1,3-thiazole 924843-35-6
Methyl (2-{2-[(cyclopentylcarbonyl)amino]-4,5-dimethoxyphenyl}ethyl)carbamate 924843-95-8
5-(1-adamantyl)-2-methyl-N-(2-{[(pyridin-3-ylmethyl)amino]carbonyl}phenyl)-3-furamide 924834-91-3
tert-Butyl (1R,6S)-8-((R)-1-phenylethyl)-3,8-diazabicyclo[4.2.0]octane-3-carboxylate 923956-65-4
Erlotinib Acetate 183320-24-3
N-(4-bromophenyl)-5-chloro-2-(methylsulfonyl)pyrimidine-4-carboxamide 902250-18-4
5-[[[2,3-Dihydro-1,1-dimethyl-3-(1-methylethyl)-1H-inden-5-yl]oxy]methyl]-2,1,3-benzothiadiazole 924846-11-7
N-(1,3-benzodioxol-5-yl)ethanediamide 890095-99-5
2-methoxy-5-(1H-tetrazol-5-yl)aniline 383870-78-8
1,3,4-Thiadiazol-2-amine, 5-[[5-(4-chlorophenyl)-2H-1,2,3,4-tetrazol-2-yl]methyl]- 924861-66-5
1H-imidazo[4,5-g]quinoxaline-6,7-diol 924871-19-2
6-(1H-tetrazol-1-yl)-1,3-benzodioxol-5-amine 924858-76-4
5-[(6,7-Dimethoxy-1,3-benzodioxol-5-yl)methyl]-4,5-dihydro-1,2-oxazole-3-carboxamide 924871-24-9
(5-oxo-2,5-dihydro-1H-pyrazol-3-yl)acetic acid 924858-85-5
3-(8-methoxy-3,4-dihydro-2H-1,5-benzodioxepin-7-yl)propanoic acid 924858-86-6
5-[[5-(3,4,5-Trimethoxyphenyl)-2H-tetrazol-2-yl]methyl]-1,3,4-thiadiazol-2-amine 924858-87-7
1-(2-methoxyphenyl)-3-(4-methoxyphenyl)-1H-pyrazol-5-ol 925052-60-4
5-Chloro-1-(phenylsulfonyl)-1h-indole-2-propanoic acid methyl ester 927960-02-9
3-[4-(4H-1,2,4-triazol-4-yl)phenyl]propanoic acid 924861-83-6
Ethyl 5-[bromo(4-chlorophenyl)methyl]-1,3,4-oxadiazole-2-carboxylate 924858-97-9
6-chloro-1-(1H-tetrazol-5-yl)-2,3,4,9-tetrahydro-1H-carbazole 924861-88-1
5-[3-(1H-pyrazol-1-yl)phenyl]-1H-tetrazole 1013764-30-1
Ethyl 5-(2-fluorobenzyl)-1,3,4-oxadiazole-2-carboxylate 924861-90-5
Ethyl 5-[(4,7-dimethoxy-1,3-benzodioxol-5-yl)methyl]-4,5-dihydro-3-isoxazolecarboxylate 924871-51-2
2-Amino-5-(4-pyridinyl)benzamide 928656-58-0
(5S)-5-[3-(4-methoxyphenyl)-5-methyl-4,5-dihydro-1,2-oxazol-5-yl]-2-methylcyclohex-2-en-1-one 1013764-35-6
N,N'-[(6-Fluoro-4-oxo-4H-1-benzopyran-3-yl)methylene]bis[acetamide] 924858-91-3
{5-[(4,7-Dimethoxy-2H-1,3-benzodioxol-5-YL)methyl]-4,5-dihydro-1,2-oxazol-3-YL}methanol 924859-07-4
N-(2-hydroxyethyl)-3-((phenylsulfonyl)methyl)-1,2,4-oxadiazole-5-carboxamide 924862-01-1

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