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-(2-Fluorophenyl)-1-(piperidin-1-YL)propan-1-one 1197972-23-8
2-Chloro-6-(trifluoromethyl)benzene-1-sulfonamide 874814-71-8
2-(benzyloxy)-N-{[6-(dimethylamino)pyridin-3-yl]methyl}propanamide 1208389-31-4
Ethanone, 1-[(1S,2S)-1,2-dihydroxy-3-cyclohexen-1-yl]- 1932159-97-1
1-(3A,7a-dihydro-1H-indol-1-yl)ethanone 411219-93-7
1-Benzyl-3-(6-methoxypyridin-3-yl)urea 1378233-16-9
4-(1H-imidazol-4-yl)benzene-1-sulfonamide 1099660-80-6
8-(2-Phenylethenesulfonyl)-1,3,8-triazaspiro[4.5]decane-2,4-dione 1198065-85-8
(E)-N-[1-(5-methyl-1,2,4-oxadiazol-3-yl)cyclohexyl]-2-phenylethenesulfonamide 1198068-24-4
Methyl 2,4-difluoro-5-sulfamoylbenzoate 1099660-82-8
3-(4-Methylphenyl)-2,4-dioxo-1,3-thiazolidine-5-carboxamide 452368-71-7
1-{3-[3-(3-Chlorophenyl)-1,2,4-oxadiazol-5-yl]pyridin-2-yl}piperidine-4-carboxylic acid 1260934-87-9
3-[3-(3-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]propanoic acid 1255784-94-1
2-Nitro-4-[(E)-({4-[(1E)-2-phenyldiazen-1-YL]phenyl}imino)methyl]phenyl 2,4-dichlorobenzoate 327990-78-3
2,6-Dibromo-4-[(E)-({4-[(1E)-2-phenyldiazen-1-YL]phenyl}imino)methyl]phenyl 3,5-dinitrobenzoate 327990-89-6
3-[1-(4-fluorophenyl)-1H-1,2,3-triazol-4-yl]-1,2,4-oxadiazole-5-carbohydrazide 1255779-12-4
4-Methyl-2-(piperidin-3-yloxy)pyridine 1185538-95-7
9-(3,4-dimethylphenyl)pyrazolo[1,5-a][1,2,4]triazolo[3,4-c]pyrazin-3(2H)-one 1255785-56-8
9-(4-butoxyphenyl)pyrazolo[1,5-a][1,2,4]triazolo[3,4-c]pyrazin-3(2H)-one 1255777-64-0
5-{[5-(chloromethyl)-1,2,4-oxadiazol-3-yl]methyl}-2-(4-methylphenyl)pyrazolo[1,5-a]pyrazin-4(5H)-one 1260953-54-5
(1Z)-N'-hydroxy-2-[2-(4-methylphenyl)-4-oxopyrazolo[1,5-a]pyrazin-5(4H)-yl]ethanimidamide 1255791-15-1
(1Z)-N'-hydroxy-2-(4-oxo-2-phenylpyrazolo[1,5-a]pyrazin-5(4H)-yl)ethanimidamide 1255790-96-5
(1Z)-2-[2-(2,4-dimethylphenyl)-4-oxopyrazolo[1,5-a]pyrazin-5(4H)-yl]-N'-hydroxyethanimidamide 1255790-95-4
(1Z)-N'-hydroxy-2-[2-(4-methoxyphenyl)-4-oxopyrazolo[1,5-a]pyrazin-5(4H)-yl]ethanimidamide 1255790-87-4
5-((4-(pyrrolidin-1-yl)phenyl)sulfonyl)-2-thioxo-2,3-dihydropyrimidin-4(1H)-one 1260921-18-3
2-Oxo-2-[4-(thiophene-2-carbonyl)piperazin-1-yl]ethyl 2-(furan-2-yl)-4-methyl-6-(methylsulfanyl)pyrimidine-5-carboxylate 1197881-51-8
N-(1-(furan-2-yl)propan-2-yl)pivalamide 1210193-14-8
N-(1-cyanocycloheptyl)-2-[(3-acetamidophenyl)amino]acetamide 1210176-30-9
2-[(4-benzyl-5-methyl-1H-imidazol-2-yl)sulfanyl]-N-(1-cyanocycloheptyl)acetamide 1197872-56-2
N-[(4-ethoxyphenyl)methyl]-1-ethyl-1H-pyrazol-4-amine 1855948-90-1
2-{[(4-chlorophenyl)methyl]sulfanyl}-N-(1-cyanocycloheptyl)acetamide 1208921-02-1
2-[(4-butyl-5-oxo-4,5-dihydro-1H-1,2,4-triazol-3-yl)sulfanyl]-N-(1-cyanocycloheptyl)acetamide 1197970-63-0
N-(1-cyanocyclopentyl)-2-({2-[(2,2,2-trifluoroethyl)sulfanyl]phenyl}amino)acetamide 1197481-94-9
(E)-N-[1-oxo-1-[4-[(3-thiophen-3-yl-1,2,4-oxadiazol-5-yl)methyl]piperazin-1-yl]propan-2-yl]-2-phenylethenesulfonamide 1214874-29-9
n4-(2-Bromobenzyl)-n4,6-dimethylpyrimidine-2,4-diamine 1209911-51-2
4-[4-(Prop-2-yn-1-yl)piperazin-1-yl]-2-(pyridin-4-yl)quinazoline 1209684-84-3
(E)-N-benzyl-N,2-diphenylethenesulfonamide 1181478-54-5
N-methoxy-N,6-dimethylpyridine-2-carboxamide 476471-33-7
N-Ethyl-2-[[4-ethyl-5-(2-furanyl)-4H-1,2,4-triazol-3-yl]thio]-N-[2-[(1-methylethyl)amino]-2-oxoethyl]acetamide 1209796-84-8
(Z)-4-(((1-(4-fluorobenzyl)-2,2-dioxido-4-oxo-1H-thieno[3,2-c][1,2]thiazin-3(4H)-ylidene)methyl)amino)benzenesulfonamide 894684-82-3
(3R,5R)-7-[5-[(4-carbamoylphenyl)carbamoyl]-3-(4-fluorophenyl)-4-phenyl-1-propan-2-ylpyrrol-2-yl]-3,5-dihydroxyheptanoic acid 950645-16-6
3,5-dichloro-N-(4-hexylphenyl)-2-hydroxybenzenesulfonamide 943962-48-9
3,5-dichloro-2-hydroxy-N-(3-phenoxyphenyl)benzenesulfonamide 943962-50-3
Methyl 3-[(2,5-dioxo-4,4-diphenylimidazolidin-1-yl)methyl]benzoate 887913-59-9
Ribofuranose 2'-phosphonate 802592-69-4
(S)-2-(5-(2-(5-methyl-2-phenylthiazol-4-yl)ethoxy)-2,3-dihydro-1H-inden-1-yl)acetic acid 496062-21-6
6,7-dimethoxy-4-((1R,2S)-2-phenylcyclopropylamino)quinoline-3-carbonitrile 958648-91-4
[(1-cyanocyclohexyl)carbamoyl]methyl 3-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)propanoate 1210334-38-5
1-[(1-cyanocyclohexyl)carbamoyl]ethyl 3-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)propanoate 1209307-35-6
[(1-cyanocyclohexyl)(methyl)carbamoyl]methyl 3-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)propanoate 1211627-61-0

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