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
methyl [3-(2-fluoro-4-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]acetate 1232794-01-2
(4-Hydroxy-6-methoxyquinolin-3-yl)(4-phenylpiperazin-1-yl)methanone 1232808-33-1
N-[5-(acetylamino)-2-methoxyphenyl]-4-oxo-1,4-dihydroquinoline-3-carboxamide 873052-64-3
6-fluoro-4-hydroxy-N-(4-sulfamoylphenyl)quinoline-3-carboxamide 1224169-72-5
4-(3-ethyl-1,2,4-oxadiazol-5-yl)quinolin-2(1H)-one 1325306-30-6
4-(3-cyclopropyl-1,2,4-oxadiazol-5-yl)quinolin-2(1H)-one 1325304-16-2
N-(3-chloro-4-methoxyphenyl)-2-([1,2,4]triazolo[4,3-b]pyridazin-6-ylsulfanyl)acetamide 1224168-82-4
N-(2-carbamoylphenyl)-4-hydroxy-8-methoxyquinoline-3-carboxamide 1232801-54-5
N-cycloheptyl-2-(3-(3,4-dimethoxyphenyl)-6-oxopyridazin-1(6H)-yl)acetamide 1232801-12-5
2-(3-(4-(3-chlorophenyl)piperazin-1-yl)-6-oxopyridazin-1(6H)-yl)-N-(pyridin-3-yl)acetamide 1232808-59-1
1-(2-methoxyphenyl)-5-(pyridin-2-yl)-1H-1,2,3-triazole-4-carboxylic acid 1326927-55-2
2-(3-(4-fluorophenyl)-6-oxopyridazin-1(6H)-yl)-N-(4-phenoxyphenyl)acetamide 1232786-87-6
N-[5-(acetylamino)-2-methoxyphenyl]-6-chloro-4-oxo-1,4-dihydroquinoline-3-carboxamide 1232790-62-3
5-(1H-pyrrol-1-yl)-1-[4-(trifluoromethoxy)phenyl]-1H-pyrazole-4-carboxylic acid 1232794-76-1
2-[acetyl(tetrahydro-2-furanylmethyl)amino]-N-[2-(1H-imidazol-4-yl)ethyl]-4-methyl-1,3-thiazole-5-carboxamide 1224156-95-9
2-[3-(4-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-[(2E)-1,3,4-thiadiazol-2(3H)-ylidene]acetamide 1232822-40-0
1-({2-[Acetyl(tetrahydrofuran-2-ylmethyl)amino]-4-methyl-1,3-thiazol-5-yl}carbonyl)piperidine-4-carboxamide 1224162-44-0
6-(3-methoxyphenyl)-2-(2-oxopropyl)pyridazin-3(2H)-one 1232788-80-5
6-(2-chlorophenyl)-2-[2-(2,3-dihydro-1,4-benzodioxin-6-yl)-2-oxoethyl]pyridazin-3(2H)-one 1224166-28-2
N-[3-(acetylamino)phenyl]-2-(benzylamino)-1,3-thiazole-4-carboxamide 1232792-51-6
(6-Fluoro-4-hydroxyquinolin-3-yl)(4-phenylpiperazin-1-yl)methanone 1224168-09-5
3-[3-(2,5-dimethoxyphenyl)-6-oxopyridazin-1(6H)-yl]propanoic acid 1225973-06-7
N-(3-chloro-4-fluorophenyl)-2-(3-(2-fluorophenyl)-6-oxopyridazin-1(6H)-yl)acetamide 1232792-38-9
3,5-dimethoxy-N-[2-(methoxymethyl)-1H-benzimidazol-5-yl]benzamide 1224169-96-3
N-(1H-benzimidazol-2-yl)-4-{4-[(4-fluorophenyl)sulfonyl]piperazin-1-yl}-4-oxobutanamide 1232784-17-6
3-(3,4-Dimethylphenyl)-1-(morpholin-4-yl)propane-1-thione 1326878-07-2
6-(4-fluoro-2-methoxyphenyl)-2-[2-oxo-2-(1-pyrrolidinyl)ethyl]-3(2H)-pyridazinone 1232795-25-3
N-(bicyclo[2.2.1]hept-5-en-2-ylmethyl)-2-(3-(4-fluorophenyl)-6-oxopyridazin-1(6H)-yl)acetamide 1224160-43-3
N-[2-(methoxymethyl)-1H-benzimidazol-5-yl]-2-phenoxyacetamide 1232794-85-2
6-(2-fluoro-4-methoxyphenyl)-2-(2-(4-(4-methoxyphenyl)piperazin-1-yl)-2-oxoethyl)pyridazin-3(2H)-one 1232802-77-5
1-[4-(1,2-Benzothiazol-3-yl)piperazin-1-yl]-4-(thiomorpholin-4-yl)butane-1,4-dione 1232790-68-9
N-[(2E)-5-benzyl-1,3,4-thiadiazol-2(3H)-ylidene]-2-[3-(4-fluorophenyl)-6-oxopyridazin-1(6H)-yl]acetamide 1224173-28-7
2-(3-(2-fluoro-4-methoxyphenyl)-6-oxopyridazin-1(6H)-yl)-N-(3-methoxypropyl)acetamide 1232770-94-3
3,4-dichloro-N-[2-(methoxymethyl)-1H-benzimidazol-5-yl]benzamide 1232785-23-7
2-(3-(3-methoxyphenyl)-6-oxopyridazin-1(6H)-yl)-N-(6-methylpyridin-2-yl)acetamide 1232806-33-5
2-(3-(4-fluorophenyl)-6-oxopyridazin-1(6H)-yl)-N-(3-methylpyridin-2-yl)acetamide 1232785-67-9
N-[4-(acetylamino)phenyl]-2-[(3-ethyl[1,2,4]triazolo[4,3-b]pyridazin-6-yl)sulfanyl]acetamide 1232782-94-3
2-[3-(2-fluorophenyl)-6-oxopyridazin-1(6H)-yl]-N-(1,3-thiazol-2-yl)acetamide 1224169-54-3
2-[6-oxo-3-(4-phenylpiperazin-1-yl)pyridazin-1(6H)-yl]-N-[(2E)-5-(propan-2-yl)-1,3,4-thiadiazol-2(3H)-ylidene]acetamide 1224173-31-2
ethyl 4-{[3-(4-fluoro-2-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]acetyl}piperazine-1-carboxylate 1232800-06-4
N-(2-fluorobenzyl)-3-[2-(4-fluorophenyl)-4-oxopyrazolo[1,5-a]pyrazin-5(4H)-yl]propanamide 1326822-55-2
5-{4-[(4-fluorophenyl)sulfonyl]piperazin-1-yl}-N-[(2E)-5-methyl-1,3,4-thiadiazol-2(3H)-ylidene]-5-oxopentanamide 1224173-10-7
N-benzyl-2-[6-oxo-3-(4-phenylpiperazin-1-yl)pyridazin-1(6H)-yl]acetamide 1215790-77-4
2-[3-(2-fluoro-4-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]-N-(pyridin-3-ylmethyl)acetamide 1232805-28-5
N-(4-fluorobenzyl)-3-[2-(4-fluorophenyl)-4-oxopyrazolo[1,5-a]pyrazin-5(4H)-yl]propanamide 1326845-64-0
N-[1-(4-fluorophenyl)ethyl]-3-[2-(4-fluorophenyl)-4-oxopyrazolo[1,5-a]pyrazin-5(4H)-yl]propanamide 1326845-74-2
N~1~-[2-(1H-indol-3-yl)ethyl]-4-oxo-4-[4-(2-pyridyl)piperazino]butanamide 1232782-34-1
2-[2-(1-acetyl-2,3-dihydro-1H-indol-5-yl)-2-oxoethyl]-6-(thiophen-2-yl)pyridazin-3(2H)-one 1232806-50-6
3-[2-(4-fluorophenyl)-4-oxopyrazolo[1,5-a]pyrazin-5(4H)-yl]-N-[2-(thiophen-2-yl)ethyl]propanamide 1326905-03-6
2-[6-oxo-3-(4-phenylpiperazin-1-yl)pyridazin-1(6H)-yl]-N-(pyridin-3-ylmethyl)acetamide 1189467-28-4

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