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
3-(1H-1,2,3,4-tetrazol-5-yl)benzene-1-sulfonyl chloride 476362-71-7
6-(4-Iodophenyl)-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazole 1071415-66-1
3-(Cyclopropylmethylsulfamoyl)-4-methylbenzoic acid 1041539-33-6
1-(azocan-1-yl)-3-(1H-indol-3-yl)propan-1-one 98563-50-9
2-Chloro-5H,6H,7H,8H,9H,10H-cycloocta[B]pyridine-3,4-dicarbonitrile 1020244-32-9
6-bromo-2-(trifluoromethyl)-4H-chromen-4-one 365242-42-8
Benzyl 3-{[(benzyloxy)carbonyl]amino}phenyl carbonate 1020241-31-9
2-(Diethylamino)-4-methylthiazole-5-carboxylic acid 1071329-00-4
4-(5-Amino-2H-benzotriazol-2-yl)benzoic acid 123228-42-2
3-(3-Bromophenyl)-1,8-naphthyridin-2-ol 1082510-10-8
5-bromo-N-(2,6-difluorophenyl)pyridin-2-amine 475634-96-9
8-Chloroquinoline-2-carboxamide 1070370-89-6
2-Chloro-2,2-difluoroethan-1-amine 758638-01-6
tert-Butyl 3-(5-bromopyridin-2-yl)prop-2-ynylcarbamate 479400-92-5
2-chloro-N-(pyridin-4-yl)-5-(1H-tetrazol-1-yl)benzamide 1040690-32-1
2-[3-(4-Methylpiperazin-1-yl)propoxy]aniline 1082510-08-4
Methyl 6-bromo-2,2-dimethyl-3-oxo-1,2,3,4-tetrahydroquinoxaline-5-carboxylate 949891-56-9
3-Ethyl-5-hydroxybenzoic acid 744957-37-7
4-Chloro-6-(3,4-dihydro-2(1H)-isoquinolinyl)-5-pyrimidinamine 882767-88-6
4-(4-Fluorophenyl)bicyclo[2.2.2]octane-1-carboxylic acid 68756-19-4
3-Chloro-N-(2-(isopropylamino)-2-oxoethyl)benzamide 1090393-69-3
1-((5-(1,1-Dioxido-3-oxoisothiazolidin-2-yl)-2-methylphenyl)sulfonyl)piperidine-4-carboxamide 1007682-14-5
N-{3-[3-(4-methoxyphenyl)-6-oxo-1,6-dihydropyridazin-1-yl]propyl}-2,4-dimethyl-1,3-thiazole-5-carboxamide 1040668-88-9
N-(3-(3-(4-methoxyphenyl)-6-oxopyridazin-1(6H)-yl)propyl)-4-sulfamoylbenzamide 1021266-35-2
N-{3-[3-(4-methoxyphenyl)-6-oxo-1,6-dihydropyridazin-1-yl]propyl}pyridine-3-sulfonamide 1040669-49-5
3-[3-(6-Oxo-3-phenyl-1,6-dihydropyridazin-1-yl)propyl]-1-[3-(trifluoromethyl)phenyl]urea 1058199-39-5
3-[3-(6-Oxo-3-phenyl-1,6-dihydropyridazin-1-yl)propyl]-1-[2-(trifluoromethyl)phenyl]urea 1058376-00-3
1-(benzo[d][1,3]dioxol-5-yl)-3-(3-(6-oxo-3-(p-tolyl)pyridazin-1(6H)-yl)propyl)urea 1040671-93-9
2-(benzo[d][1,3]dioxol-5-yloxy)-N-(3-(3-(4-chlorophenyl)-6-oxopyridazin-1(6H)-yl)propyl)acetamide 1021254-08-9
2-(4-fluorophenyl)-N-{[1-(thiophen-2-yl)cyclopentyl]methyl}acetamide 1060214-31-4
3,4-dimethoxy-N-{[1-(thiophen-2-yl)cyclopentyl]methyl}benzamide 1060215-10-2
N'-[2-(cyclohex-1-en-1-yl)ethyl]-N-{[1-(thiophen-2-yl)cyclopentyl]methyl}ethanediamide 1058184-60-3
3-[2-Oxo-2-(1,2,3,4-tetrahydroisoquinolin-2-yl)ethyl]-6-phenyl-3,4-dihydropyrimidin-4-one 1058422-44-8
N-cyclopentyl-2-[4-(4-methylphenyl)-6-oxo-1,6-dihydropyrimidin-1-yl]acetamide 1058423-27-0
N-cyclohexyl-2-(4-(4-methoxyphenyl)-6-oxopyrimidin-1(6H)-yl)-N-methylacetamide 1058373-26-4
6-(4-Methoxyphenyl)-3-[2-oxo-2-(pyrrolidin-1-yl)ethyl]-3,4-dihydropyrimidin-4-one 1058436-95-5
6-(4-Methoxyphenyl)-3-[2-oxo-2-(piperidin-1-yl)ethyl]-3,4-dihydropyrimidin-4-one 1058373-27-5
2-[4-(4-methoxyphenyl)-6-oxo-1,6-dihydropyrimidin-1-yl]-N-[(pyridin-2-yl)methyl]acetamide 1058198-03-0
2-[4-(4-fluorophenyl)-6-oxo-1,6-dihydropyrimidin-1-yl]-N-[(4-fluorophenyl)methyl]acetamide 1058239-97-6
N-(2-ethylphenyl)-2-[4-(4-fluorophenyl)-6-oxo-1,6-dihydropyrimidin-1-yl]acetamide 1060206-13-4
2-[4-(4-fluorophenyl)-6-oxo-1,6-dihydropyrimidin-1-yl]-N-[(pyridin-4-yl)methyl]acetamide 1058501-15-7
2-[4-(4-fluorophenyl)-6-oxo-1,6-dihydropyrimidin-1-yl]-N-(2-phenylethyl)acetamide 1058240-01-9
Ethyl 4-{2-[4-(4-ethoxyphenyl)-6-oxo-1,6-dihydropyrimidin-1-yl]acetamido}benzoate 1060189-63-0
1-(Furan-2-ylmethyl)piperidin-4-ol 1044770-16-2
N-[2-({3-methyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)ethyl]-4-(trifluoromethoxy)benzene-1-sulfonamide 1021216-46-5
N-[2-({3-methyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)ethyl]-4-(trifluoromethyl)benzene-1-sulfonamide 1021263-40-0
3-Cyclopropyl-6-(4-((2,4-difluorophenyl)sulfonyl)piperazin-1-yl)-[1,2,4]triazolo[4,3-b]pyridazine 1040641-64-2
2-[4-(2,4-dimethoxybenzenesulfonamido)phenyl]-N,N-dimethylacetamide 1070964-49-6
2-[4-(5-ethyl-2-methoxybenzenesulfonamido)phenyl]-N-[(thiophen-2-yl)methyl]acetamide 1060246-11-8
4-chloro-N-(2-{[4-(2-methylpropanamido)phenyl]formamido}ethyl)benzamide 1021219-60-2

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