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
N-(2-(6-oxo-3-(pyridin-3-yl)pyridazin-1(6H)-yl)ethyl)-3-(1H-tetrazol-1-yl)benzamide 1207015-26-6
5-(furan-2-yl)-N-(2-(6-oxo-3-(pyridin-3-yl)pyridazin-1(6H)-yl)ethyl)isoxazole-3-carboxamide 1207046-22-7
N-(2-(6-oxo-3-(pyridin-3-yl)pyridazin-1(6H)-yl)ethyl)-2-(4-oxoquinazolin-3(4H)-yl)acetamide 1207046-62-5
N-(3-(6-oxo-3-(pyridin-4-yl)pyridazin-1(6H)-yl)propyl)benzofuran-2-carboxamide 1207046-40-9
2-[N-(cyclopropylmethyl)acetamido]acetic acid 1156279-35-4
5-methyl-N-(3-(6-oxo-3-(pyridin-4-yl)pyridazin-1(6H)-yl)propyl)isoxazole-3-carboxamide 1207046-72-7
4-fluoro-N-(4-(3-oxo-3-(((3-phenyl-1,2,4-oxadiazol-5-yl)methyl)amino)propyl)thiazol-2-yl)benzamide 1207050-41-6
4-fluoro-N-(4-(3-oxo-3-((2-(6-oxopyridazin-1(6H)-yl)ethyl)amino)propyl)thiazol-2-yl)benzamide 1206995-95-0
(4-([1,2,4]Triazolo[4,3-b]pyridazin-6-yl)piperazin-1-yl)(quinolin-2-yl)methanone 1203139-87-0
N-(2-methyl-2,4,5,6-tetrahydrocyclopenta[c]pyrazol-3-yl)-2-(4-(methylsulfonyl)phenyl)acetamide 1203113-11-4
2-(2,5-dioxopyrrolidin-1-yl)-N-(2-phenyl-2,4,5,6-tetrahydrocyclopenta[c]pyrazol-3-yl)acetamide 1203204-82-3
N-butyl-1-ethyl-1H-pyrazol-4-amine 1856092-94-8
(5-methyl-1-(1-methylpiperidin-3-yl)-3-(trifluoromethyl)-1H-pyrazol-4-yl)(3-methylpiperidin-1-yl)methanone 1203254-95-8
N-butyl-1-(1-isopropylpiperidin-3-yl)-5-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxamide 1203159-66-3
2-Azido-4-methylpyrimidine 133592-74-2
Ethyl 1-(2-((3-chlorophenyl)amino)thiazole-4-carbonyl)piperidine-4-carboxylate 1203153-65-4
(2-((3-Chlorophenyl)amino)thiazol-4-yl)(4-(furan-2-carbonyl)piperazin-1-yl)methanone 1202972-46-0
2-((3-chlorophenyl)amino)-N-(3,4-dimethoxyphenyl)thiazole-4-carboxamide 1202975-50-5
(2-((3-Chlorophenyl)amino)thiazol-4-yl)(4-(pyridin-2-yl)piperazin-1-yl)methanone 1203102-30-0
1-(indolin-1-yl)-2-((1-(o-tolyl)-5-(p-tolyl)-1H-imidazol-2-yl)thio)ethanone 1207006-97-0
N-(3-acetamidophenyl)-2-((3-chlorophenyl)amino)thiazole-4-carboxamide 1203364-15-1
Ethyl 1-(2-((4-(difluoromethoxy)phenyl)amino)thiazole-4-carbonyl)piperidine-4-carboxylate 1203417-46-2
2-(1H-benzo[d]imidazol-1-yl)-1-(4-((4-(4-fluorophenyl)thiazol-2-yl)methyl)piperazin-1-yl)ethanone 1206997-08-1
6-(4-((4-(4-chlorophenyl)thiazol-2-yl)methyl)piperazine-1-carbonyl)-2-methylpyridazin-3(2H)-one 1207021-30-4
4-ethyl-3-pentyl-1H-pyrazol-5-amine 1312598-29-0
2-((4-methyl-1-(p-tolyl)-1H-pyrazolo[3,4-d]pyridazin-7-yl)thio)-N-((tetrahydrofuran-2-yl)methyl)acetamide 1207028-21-4
N-(3,4-dimethoxyphenyl)-2-((4-isopropyl-1-(p-tolyl)-1H-pyrazolo[3,4-d]pyridazin-7-yl)thio)acetamide 1207039-89-1
ethyl 2-((1-(2-methoxyphenyl)-4-methyl-1H-pyrazolo[3,4-d]pyridazin-7-yl)thio)butanoate 1203107-60-1
(3-(5-(4-Methoxyphenyl)-1,3,4-thiadiazol-2-yl)piperidin-1-yl)(thiophen-2-yl)methanone 1203215-94-4
Cyclopentyl(3-(5-(4-methoxyphenyl)-1,3,4-thiadiazol-2-yl)piperidin-1-yl)methanone 1203218-38-5
Ethyl 4-(3-(5-(4-methoxyphenyl)-1,3,4-thiadiazol-2-yl)piperidin-1-yl)-4-oxobutanoate 1203195-84-9
3-(5-Benzyl-1,3,4-thiadiazol-2-yl)-1-(furan-2-carbonyl)piperidine 1203325-65-8
(3-(5-Benzyl-1,3,4-thiadiazol-2-yl)piperidin-1-yl)(5-methylisoxazol-3-yl)methanone 1203040-02-1
2-Benzyl-5-(1-((4-methoxyphenyl)sulfonyl)piperidin-3-yl)-1,3,4-thiadiazole 1203192-69-1
(4-(5-Cyclopropyl-1,3,4-thiadiazol-2-yl)piperidin-1-yl)(2-methoxyphenyl)methanone 1203423-85-1
1-(2-Chloro-4-fluorobenzoyl)-4-(5-cyclopropyl-1,3,4-thiadiazol-2-yl)piperidine 1203245-85-5
Ethyl 4-(4-(5-cyclopropyl-1,3,4-thiadiazol-2-yl)piperidin-1-yl)-4-oxobutanoate 1203004-50-5
2-((5-(4-(cyclopropanecarbonyl)piperazin-1-yl)-1,3,4-thiadiazol-2-yl)thio)-N-(furan-2-ylmethyl)acetamide 1206988-88-6
2-((5-(4-(2-chloro-4-fluorobenzoyl)piperazin-1-yl)-1,3,4-thiadiazol-2-yl)thio)-N-isopropylacetamide 1203191-90-5
1-(6-(furan-2-yl)pyridazin-3-yl)-N-(furan-2-ylmethyl)piperidine-3-carboxamide 1202997-94-1
1-Cyclohexyl-3-(1-(methylsulfonyl)-1,2,3,4-tetrahydroquinolin-7-yl)urea 1203145-72-5
1-Cyclohexyl-3-(1-isobutyryl-1,2,3,4-tetrahydroquinolin-6-yl)urea 1203320-68-6
1-(2-(1-Methyl-1,2,3,4-tetrahydroquinolin-6-yl)-2-(pyrrolidin-1-yl)ethyl)-3-(thiophen-2-yl)urea 1203402-84-9
1-(2-Ethoxyphenyl)-3-(11-oxo-10,11-dihydrodibenzo[b,f][1,4]oxazepin-2-yl)urea 1203352-49-1
1-Benzyl-3-(8,10-dimethyl-11-oxo-10,11-dihydrodibenzo[b,f][1,4]oxazepin-2-yl)urea 1203083-17-3
(4-(2-methyl-6-(1H-pyrazol-1-yl)pyrimidin-4-yl)piperazin-1-yl)(tetrahydrofuran-2-yl)methanone 1203018-56-7
(4-(6-(3,5-dimethyl-1H-pyrazol-1-yl)pyrimidin-4-yl)piperazin-1-yl)(2,4-dimethylthiazol-5-yl)methanone 1207030-95-2
2-(4-chlorophenoxy)-N-(2-((2-methyl-6-(1H-pyrazol-1-yl)pyrimidin-4-yl)amino)ethyl)acetamide 1203348-45-1
(2,6-Dimethyl-4-morpholinyl)(1-hydroxy-2-naphthalenyl)methanone 1019353-56-0
1-(3-chlorophenyl)-3-(2-((6-(3,5-dimethyl-1H-pyrazol-1-yl)-2-methylpyrimidin-4-yl)amino)ethyl)urea 1203022-37-0

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