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
2-(5-methyl-1H-tetrazol-1-yl)-N-(4-phenylbutan-2-yl)benzamide 1324069-18-2
ethyl 4-{[6-oxo-3-(thiomorpholin-4-yl)pyridazin-1(6H)-yl]acetyl}piperazine-1-carboxylate 1324073-05-3
[4-(3-Methoxyphenyl)piperazin-1-yl][3-methyl-6-(propan-2-yl)[1,2]oxazolo[5,4-b]pyridin-4-yl]methanone 1324055-96-0
3,4-dimethyl-N-[(2Z)-5-(tetrahydrofuran-2-yl)-1,3,4-thiadiazol-2(3H)-ylidene]-2-(1H-tetrazol-1-yl)benzamide 1310946-63-4
N-(bicyclo[2.2.1]hept-5-en-2-ylmethyl)-1-(1,1-dioxidotetrahydrothiophen-3-yl)-6-oxo-1,4,5,6-tetrahydropyridazine-3-carboxamide 1324076-87-0
N-{3-[(4-fluorophenyl)carbamoyl]phenyl}-4-phenylpiperazine-1-carboxamide 1324093-67-5
N-[2-(3,4-dimethoxyphenyl)ethyl]-3-(5-methyl-1H-tetrazol-1-yl)benzamide 1324088-75-6
4-[4-(4-fluorophenyl)piperazin-1-yl]-N-[2-(1H-indol-1-yl)ethyl]-4-oxobutanamide 1324068-65-6
2-[6-oxo-3-(thiomorpholin-4-yl)pyridazin-1(6H)-yl]-N-phenylacetamide 1324087-81-1
N-[2-(4-methoxyphenyl)ethyl]-3-(5-methyl-1H-tetrazol-1-yl)benzamide 1324075-84-4
2-(2-((4-Hydroxypyridin-3-yl)amino)-2-oxoethyl)benzoic acid 1324062-61-4
N-benzyl-3-[6-(3,5-dimethyl-1H-pyrazol-1-yl)[1,2,4]triazolo[4,3-b]pyridazin-3-yl]propanamide 1324059-79-1
4-(1,3-benzothiazol-2-yl)-N-[(2E)-5-(tetrahydrofuran-2-yl)-1,3,4-thiadiazol-2(3H)-ylidene]butanamide 1324081-56-2
2-(5-bromo-1H-indol-1-yl)-N-[(1-ethylpyrrolidin-2-yl)methyl]acetamide 1324095-02-4
Ethyl 2-({[1-(2,4-dimethoxyphenyl)-5-oxopyrrolidin-3-yl]carbonyl}amino)-1,3-thiazole-4-carboxylate 1310945-89-1
N-[2-oxo-2-(1H-1,2,4-triazol-3-ylamino)ethyl]-4-phenylpiperazine-1-carboxamide 1324056-01-0
4-chloro-3-(1,1-dioxido-1,2-thiazinan-2-yl)-N-[(2E)-5-(propan-2-yl)-1,3,4-thiadiazol-2(3H)-ylidene]benzamide 1310946-68-9
N-[2-(2-methoxyphenyl)ethyl]-2-(3-oxo-5,6,7,8-tetrahydrocinnolin-2(3H)-yl)acetamide 1310941-33-3
3-[6-(3,5-dimethyl-1H-pyrazol-1-yl)[1,2,4]triazolo[4,3-b]pyridazin-3-yl]-N-(3,4,5-trifluorophenyl)propanamide 1324085-38-2
2-[3-(3-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-[(2Z)-4-(pyridin-3-yl)-1,3-thiazol-2(3H)-ylidene]acetamide 1310945-70-0
N-{3-[(furan-2-ylmethyl)carbamoyl]phenyl}-4-phenylpiperazine-1-carboxamide 1324055-18-6
N-(2-methylpropyl)-4-(5-methyl-1H-tetrazol-1-yl)benzamide 1324074-99-8
4-chloro-3-(1,1-dioxido-1,2-thiazinan-2-yl)-N-(6-methoxypyridin-3-yl)benzamide 1216960-54-1
2-(3-(4-(3-chlorophenyl)piperazin-1-yl)-6-oxopyridazin-1(6H)-yl)-N-(pyridin-4-yl)acetamide 1324078-42-3
1-cyclopentyl-N-[2-(3,4-dimethoxyphenyl)ethyl]-6-methyl-1H-pyrazolo[3,4-b]pyridine-4-carboxamide 1324095-83-1
4-(5-methyl-1H-tetrazol-1-yl)-N-(propan-2-yl)benzamide 1324097-16-6
N-[3-(1,1-dioxido-1,2-thiazinan-2-yl)phenyl]-4-methyl-2-(1H-pyrrol-1-yl)-1,3-thiazole-5-carboxamide 1324085-56-4
2-[3-(3,4-dimethoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-[(2Z)-4-(pyridin-3-yl)-1,3-thiazol-2(3H)-ylidene]acetamide 1310946-07-6
N-{[3-(2-chlorophenyl)-6-oxopyridazin-1(6H)-yl]acetyl}-beta-alanine 1324078-30-9
N-[2-(5-chloro-1H-indol-3-yl)ethyl]-2-[3-(2-chlorophenyl)-6-oxopyridazin-1(6H)-yl]acetamide 1324085-21-3
1-cyclopentyl-6-methyl-N-(2-methylpropyl)-1H-pyrazolo[3,4-b]pyridine-4-carboxamide 1324094-05-4
2-[3-(2-chlorophenyl)-6-oxopyridazin-1(6H)-yl]-N-[(2E)-5-(methoxymethyl)-1,3,4-thiadiazol-2(3H)-ylidene]acetamide 1324098-39-6
Methyl 3-(cyanomethyl)-4-fluorobenzoate 878741-80-1
N-[3-(1,1-dioxido-1,2-thiazinan-2-yl)phenyl]-1-methyl-1H-indole-6-carboxamide 1324069-89-7
3-(1,3-benzothiazol-2-yl)-N-(3,4,5-trifluorophenyl)propanamide 1324059-51-9
2'-(sec-butyl)-1'-oxo-N-(1,3,4-thiadiazol-2-yl)-2',4'-dihydro-1'H-spiro[cyclopentane-1,3'-isoquinoline]-4'-carboxamide 1310946-34-9
6-({[3-(2-chlorophenyl)-6-oxopyridazin-1(6H)-yl]acetyl}amino)hexanoic acid 1324078-03-6
2-[3-(4-fluoro-2-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-[(2Z)-4-(pyridin-3-yl)-1,3-thiazol-2(3H)-ylidene]acetamide 1310945-98-2
[1-(Diphenylmethyl)azetidin-3-yl](thiomorpholin-4-yl)methanone 1324077-59-9
2-[3-(2-chlorophenyl)-6-oxopyridazin-1(6H)-yl]-N-(3,4,5-trimethoxyphenyl)acetamide 1324087-36-6
1-benzhydryl-N~3~-(3,4-dimethoxyphenethyl)-3-azetanecarboxamide 1324093-81-3
4-chloro-3-(1,1-dioxido-1,2-thiazinan-2-yl)-N-[(2Z)-4-(pyridin-2-yl)-1,3-thiazol-2(3H)-ylidene]benzamide 1310946-17-8
3,4-dimethyl-N-(5-methyl-1,3,4-thiadiazol-2-yl)-2-(1H-tetrazol-1-yl)benzamide 1324097-03-1
N-(1H-indol-5-yl)-1,3,6-trimethyl-1H-pyrazolo[3,4-b]pyridine-4-carboxamide 1324058-06-1
[4-(4-Chlorophenyl)piperazino](3,6-dimethylisoxazolo[5,4-b]pyridin-4-yl)methanone 1299107-49-5
2-(1,1-dioxidotetrahydrothiophen-3-yl)-6-(thiomorpholin-4-ylcarbonyl)-4,5-dihydropyridazin-3(2H)-one 1324062-91-0
N-{2-oxo-2-[(2-phenylethyl)amino]ethyl}-4-phenylpiperazine-1-carboxamide 1324089-95-3
2-{3-[4-(methylsulfanyl)phenyl]-6-oxopyridazin-1(6H)-yl}-N-(1,3-thiazol-2-yl)acetamide 1324095-14-8
4-phenyl-N-[4-(propan-2-ylcarbamoyl)phenyl]piperazine-1-carboxamide 1324073-49-5
N-[2-(6-chloro-1H-indol-1-yl)ethyl]-2-[3-(4-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]acetamide 1324096-73-2

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