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-Methyl-2-[3''-(methylsulfonyl)biphenyl-3-yl]-5-(trifluoromethyl)quinoxaline 1221265-40-2
2-(1H-Benzimidazol-2-ylthio)-N-(4-oxo-2-phenyl-3-thiazolidinyl)acetamide 1226777-29-2
2'-(2-methoxyethyl)-N-(4-methoxyphenyl)-1'-oxo-1',4'-dihydro-2'H-spiro[cyclopentane-1,3'-isoquinoline]-4'-carboxamide 1212437-65-4
1-benzyl-5-oxo-N-[(2E)-5-(2-phenylethyl)-1,3,4-thiadiazol-2(3H)-ylidene]pyrrolidine-3-carboxamide 1144472-41-2
3-[2-(5-bromothiophen-2-yl)-2-oxoethyl]-7-chloro-3-hydroxy-1,3-dihydro-2H-indol-2-one 1144487-08-0
N-cyclopentyl-3-{[(1,1-dioxidotetrahydrothiophen-3-yl)carbamoyl]amino}benzamide 1144457-73-7
N-(3-methoxyphenyl)-1-[3-(trifluoromethyl)[1,2,4]triazolo[4,3-b]pyridazin-6-yl]piperidine-3-carboxamide 1144435-95-9
methyl N-[(2'-benzyl-1'-oxo-1',4'-dihydro-2'H-spiro[cyclopentane-1,3'-isoquinolin]-4'-yl)carbonyl]-beta-alaninate 1212439-27-4
1-(2-bromophenyl)-5-oxo-N-(2-oxo-2H-chromen-6-yl)pyrrolidine-3-carboxamide 1144483-37-3
N-(4-chlorobenzyl)-2'-(2-methoxyethyl)-1'-oxo-1',4'-dihydro-2'H-spiro[cyclopentane-1,3'-isoquinoline]-4'-carboxamide 1212480-36-8
(2E)-2-(acetylimino)-N-(bicyclo[2.2.1]hept-5-en-2-ylmethyl)-2,3-dihydro-1,3-benzothiazole-6-carboxamide 1212301-64-8
N-(3-chloro-4-fluorophenyl)-1-[3-(trifluoromethyl)[1,2,4]triazolo[4,3-b]pyridazin-6-yl]piperidine-3-carboxamide 1144469-23-7
1-(2,3-dihydro-1,4-benzodioxin-6-yl)-N-[(2E)-5-(methoxymethyl)-1,3,4-thiadiazol-2(3H)-ylidene]-5-oxopyrrolidine-3-carboxamide 1144476-24-3
N-(4-fluorobenzyl)-2'-(2-methoxyethyl)-1'-oxo-1',4'-dihydro-2'H-spiro[cyclopentane-1,3'-isoquinoline]-4'-carboxamide 1212475-42-7
N-[4-(acetylamino)phenyl]-1-[3-(trifluoromethyl)[1,2,4]triazolo[4,3-b]pyridazin-6-yl]piperidine-3-carboxamide 1144430-44-3
1-(2-methoxybenzyl)-N-[(2E)-5-(methoxymethyl)-1,3,4-thiadiazol-2(3H)-ylidene]-5-oxopyrrolidine-3-carboxamide 1144455-86-6
1-(3-chlorophenyl)-N-[(2E)-5-(methoxymethyl)-1,3,4-thiadiazol-2(3H)-ylidene]-5-oxopyrrolidine-3-carboxamide 1144496-16-1
1-(4-fluorobenzyl)-N-(4-hydroxyphenyl)-5-oxopyrrolidine-3-carboxamide 1144440-24-3
1-(3-chlorophenyl)-3-(6-fluoro-1,3,4,9-tetrahydro-2H-beta-carbolin-2-yl)pyrrolidine-2,5-dione 1144459-95-9
N-(4-chlorophenyl)-N~3~-[(1,1-dioxidotetrahydrothiophen-3-yl)carbamoyl]-beta-alaninamide 1144465-11-1
3-(1,3-benzodioxol-5-ylmethyl)-1-(4-fluorophenyl)-7,8-dimethyl-1,2,3,4-tetrahydro-6H-pyrimido[1,2-a][1,3,5]triazin-6-one 1144482-47-2
N-cyclohexyl-2'-(2-methoxyethyl)-1'-oxo-1',4'-dihydro-2'H-spiro[cyclopentane-1,3'-isoquinoline]-4'-carboxamide 1212491-36-5
N-[(2Z)-1,3-benzothiazol-2(3H)-ylidene]-1-(2-fluorophenyl)-5-oxopyrrolidine-3-carboxamide 1144466-74-9
methyl 3-(4-(2,5-difluorophenyl)-4,5,6,7-tetrahydro-3H-imidazo[4,5-c]pyridine-5-carboxamido)propanoate 1040704-39-9
4-Ethyl-2-methyl-4H-thieno[3,2-b]pyrrole-5-carboxylic acid 1051362-36-7
Ethyl 2-[5-amino-6-(5-phenyl-1,3,4-oxadiazol-2-yl)pyrazin-2-yl]cyclopropanecarboxylate 1225063-34-2
N-Propylphenylalanine ethyl ester 1220703-75-2
2-[4-(5-cyano-4-{[(dimethylamino)methylene]amino}-2-methoxyphenoxy)piperidin-1-yl]-N-methylacetamide 1196531-32-4
Tert-butyl 2-amino-5-methyl-4-phenylthiophene-3-carboxylate 944578-53-4
(2R,3S)-1-(2-Chlorobenzoyl)-2-(4-(cyclopentylamino)phenyl)-N-(4-methyl-3-(trifluoromethyl)phenyl)piperidine-3-carboxamide 1346623-19-5
3-Pyrrolidinol, 1-[2-(2,3-dihydro-5-benzofuranyl)ethyl]-, (3R)- 1190695-09-0
4-Fluoro-2-iodo-6-methylphenol 1228093-53-5
(R)-tert-butyl 3-(2-iodoethyl)pyrrolidine-1-carboxylate 1228312-22-8
N-(2,6-Diethylphenyl)-5-(4-fluorophenyl)-6-methyl-4-oxothieno[2,3-d]pyrimidine-3(4H)-acetamide 877041-48-0
(2S,3R,4R,5S,6R)-5-Fluoro-6-(hydroxymethyl)-2-((4-((4-methoxyphenyl)methyl)-5-(trifluoromethyl)-1H-pyrazol-3-yl)oxy)tetrahydropyran-3,4-diol 702638-25-3
(4-(3'-Methoxy-3,4'-bipyridin-2-yloxy)phenyl)(1-methyl-1h-benzo[d]imidazol-2-yl)methanone 1227173-36-5
2-Bromo-N-hydroxy-6-methylnicotinimidamide 923288-61-3
1-[4-(2,3-dihydro-1,4-benzodioxin-2-ylcarbonyl)piperazin-1-yl]-2-(5-methoxy-1H-indol-1-yl)ethanone 1081122-89-5
N-(4-chlorobenzyl)-2'-(2-methoxyethyl)-1'-oxo-1',4'-dihydro-2'H-spiro[cyclohexane-1,3'-isoquinoline]-4'-carboxamide 1212430-87-9
1-(4-fluorophenyl)-3-(2-methoxybenzyl)-7,8-dimethyl-1,2,3,4-tetrahydro-6H-pyrimido[1,2-a][1,3,5]triazin-6-one 1144485-20-0
4-{[(1,1-dioxidotetrahydrothiophen-3-yl)carbamoyl]amino}-N-phenylbenzamide 1144429-76-4
N-(1,3-dihydro-2H-benzimidazol-2-ylidene)-1-(2-methoxybenzyl)-5-oxopyrrolidine-3-carboxamide 1144486-10-1
Methyl 3-({[2-(1,3-benzothiazol-2-yl)pyrrolidin-1-yl]carbonyl}amino)benzoate 1144467-22-0
2-[(2-Hydroxyethyl)sulfanyl]-1-(3-methylphenyl)ethan-1-one 1157306-41-6
1-(3,4-Dimethylphenyl)-2-((2-hydroxyethyl)thio)ethan-1-one 1157217-99-6
1-(3-Chlorophenyl)-2-(ethylsulfanyl)ethan-1-one 1157221-56-1
1-(3-Bromophenyl)-2-(ethylthio)ethan-1-one 1157204-81-3
1-(Ethylsulfanyl)-3-(2-fluorophenyl)propan-2-one 1157205-63-4
1-(3,4-Dihydroxyphenyl)-2-(propylthio)ethan-1-one 1157365-61-1
2-(4-Chlorophenyl)-2-(dimethylamino)propanoic acid 1157479-33-8

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