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
N-(4,6-dihydrothieno[3,4-c]isoxazol-3-yl)-2-(2-oxo-1,3-benzoxazol-3-yl)acetamide 1207009-24-2
N-(4-(2-(4-(5-chloro-2-methylphenyl)piperazin-1-yl)-2-oxoethyl)thiazol-2-yl)pyrazine-2-carboxamide 1210246-07-3
6-(3-bromophenyl)-2-(2-(4-methoxyphenyl)-2-oxoethyl)pyridazin-3(2H)-one 1210022-12-0
N-(2-((3-phenyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)oxy)ethyl)-1-(thiophen-2-yl)cyclopentanecarboxamide 1209735-43-2
4-((4-Chlorophenyl)sulfonyl)-8-((3,5-dimethylisoxazol-4-yl)sulfonyl)-1-oxa-4,8-diazaspiro[4.5]decane 1208837-71-1
N1-(3-(1H-imidazol-1-yl)propyl)-N2-(2-(cyclohex-1-en-1-yl)ethyl)oxalamide 1211827-34-7
(2,5-Dimethylfuran-3-yl)(4-((4-methoxyphenyl)sulfonyl)-1-oxa-4,8-diazaspiro[4.5]decan-8-yl)methanone 1210646-52-8
2-((4-fluorophenyl)thio)-N-(1-(thiophene-2-carbonyl)-1,2,3,4-tetrahydroquinolin-6-yl)acetamide 1207021-55-3
N-(2-acetyl-1,2,3,4-tetrahydroisoquinolin-7-yl)pyridine-3-sulfonamide 1210860-41-5
N1-(2-fluorophenyl)-N2-(2-(2-methyl-1H-imidazol-1-yl)ethyl)oxalamide 1208951-28-3
4-[3-(2-Ethyl-6-methylanilino)-6-methylimidazo[1,2-a]pyridin-2-yl]-2-methoxyphenol 954239-04-4
1-(1,1-dioxidotetrahydrothiophen-3-yl)-N-(3-methylbutyl)-6-oxo-1,4,5,6-tetrahydropyridazine-3-carboxamide 1182325-47-8
2-Chloro-4-methyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-YL)pyrimidine 1310405-15-2
6-methyl-7H-imidazo[1,2-a]pyrazin-8-one 1124321-45-4
2-[5-(Propan-2-yl)-1,2,4-oxadiazol-3-yl]piperidine 1211390-05-4
(Z)-2-cyano-N-(2,3-dihydro-1,4-benzodioxin-6-yl)-3-(2-methylimidazo[1,2-a]pyridin-3-yl)prop-2-enamide 869633-82-9
N-[6-(1H-imidazol-1-yl)pyridin-3-yl]-4-sulfamoylbenzamide 1210352-57-0
2-methyl-N~1~-{[3-methyl-5-(4-methylpiperazino)-1-phenyl-1H-pyrazol-4-yl]methyl}-N~1~-propylbenzamide 1185100-64-4
3-tert-Butyl-1-(2,3-dimethylphenyl)-1H-pyrazol-5-amine 1193155-46-2
N-[2-[[1-(3,4-Dichlorophenyl)-3-(1,1-dimethylethyl)-1H-pyrazol-5-yl]amino]-2-oxoethyl]-N-pentylbenzenepropanamide 1189684-41-0
5-amino-1-(2,6-difluorophenyl)-1H-pyrazole-4-carbaldehyde 1080562-66-8
N-(2-acetamido-1,3-benzothiazol-6-yl)benzamide 1114604-21-5
(3,4-dimethoxyphenyl)[4-(4-isopropylphenyl)-1,1-dioxido-4H-1,4-benzothiazin-2-yl]methanone 1114853-25-6
4-{[3,5-Dimethyl-2-(3-methylphenyl)pyrazolo[1,5-a]pyrimidin-7-yl]amino}benzamide 1203111-77-6
2-Fluoro-6-(4-fluorophenyl)benzoyl chloride 1214364-26-7
N-(azetidin-3-yl)-N-methyl-acetamide 935730-59-9
2-((2-benzyl-3-oxo-2,3-dihydroimidazo[1,2-c]quinazolin-5-yl)thio)-N-(4-methoxybenzyl)acetamide 1173764-02-7
3-(3,5-Dimethylphenyl)-1-[3-({8-methyl-4-oxo-4H-pyrido[1,2-A]pyrimidin-2-YL}methoxy)phenyl]urea 932962-66-8
5-(4-fluorophenyl)-3-(3,4,5-trimethoxyphenyl)-1H-1,2,4-triazole 1216593-94-0
N-(2H-1,3-benzodioxol-5-yl)-2-({8-fluoro-5H-pyrimido[5,4-b]indol-4-yl}sulfanyl)acetamide 1115997-48-2
2-Bromo-5-(2,2-dimethyl-1,3-dioxolan-4-yl)pyridine 1080060-14-5
2-(4H-3,1-Benzothiazin-2-ylthio)-N-methyl-N-(phenylmethyl)propanamide 1008387-96-9
5-chloro-N-(4-methylpyrimidin-2-yl)-4-(1H-pyrazol-4-yl)-1,3-thiazol-2-amine 1235313-13-9
1-(4-Chloro-3-propoxybenzenesulfonyl)piperidine-4-carboxylic acid 1206092-45-6
2-[4-(4-Tert-butylphenyl)-4-methyl-2,5-dioxoimidazolidin-1-YL]-N-(1-cyanocyclopentyl)acetamide 1240817-41-7
N-(1-cyanocycloheptyl)-2-{[2-(4-hydroxypiperidin-1-yl)phenyl]amino}acetamide 1241619-34-0
4-Chloro-2-{[(1-cyano-1,2-dimethylpropyl)carbamoyl]methoxy}benzamide 1241286-03-2
1-(2-phenylethenesulfonyl)-N-(2-propyl-2,3-dihydro-1H-isoindol-5-yl)piperidine-4-carboxamide 1241700-78-6
3-Chloro-2-(propan-2-ylsulfanyl)-5-(trifluoromethyl)pyridine 1881292-85-8
3-[(5-bromothiophen-2-yl)methylsulfanyl]-4-methyl-1H-1,2,4-triazol-5-one 1248942-93-9
2-(6-Chloropyridine-3-sulfonamido)-6-fluorobenzoic acid 1356680-53-9
N-neopentyl-N-(pyridin-4-yl)furan-2-carboxamide 1226431-31-7
2-chloro-N-({3-[2-(morpholin-4-yl)ethoxy]phenyl}methyl)pyridine-4-carboxamide 1290291-80-3
1H-Pyrazole-3-carboxamide, 1-(2-chlorophenyl)-N-(2,3-difluorophenyl)- 1376352-13-4
2-(cyclopropylamino)-N-(2-hydroxyphenyl)-1,3-thiazole-4-carboxamide 1219551-66-2
N-(1H-benzimidazol-5-yl)-3-bromobenzamide 1219569-90-0
(4-((3-(4-Methylpiperidin-1-yl)pyrazin-2-yl)oxy)phenyl)(4-phenylpiperazin-1-yl)methanone 1189707-83-2
3-((4-(2-chlorophenyl)piperazin-1-yl)sulfonyl)-1-propyl-N-((tetrahydrofuran-2-yl)methyl)-1H-pyrazole-4-carboxamide 1251707-48-8
3-{[4-(4-chlorophenyl)piperazin-1-yl]sulfonyl}-1-methyl-N-(4-methylcyclohexyl)-1H-pyrazole-4-carboxamide 1251586-57-8
N-(4-isopropylbenzyl)-4-methyl-2-(phenylamino)thiazole-5-carboxamide 1243022-51-6

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