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
1-(3-fluorobenzoyl)-4-(4-fluorophenyl)-2,2-dimethyl-1H-imidazol-5(2H)-one 933196-69-1
1-(3-chlorobenzoyl)-4-(4-fluorophenyl)-2,2-dimethyl-1H-imidazol-5(2H)-one 933243-21-1
4-(4-chlorophenyl)-1-(3-fluorobenzoyl)-2,2-dimethyl-1H-imidazol-5(2H)-one 933196-73-7
1-((4-Isopropylphenyl)sulfonyl)piperidine-3-carboxylic acid 932976-67-5
N-(6-chloro-1,3-benzothiazol-2-yl)-1-ethyl-N-[(pyridin-2-yl)methyl]-1H-pyrazole-5-carboxamide 1172774-64-9
1-ethyl-3-methyl-N-(4-(thiophen-2-yl)thiazol-2-yl)-1H-pyrazole-5-carboxamide 1171759-50-4
N-[4-(2,5-dichlorothiophen-3-yl)-1,3-thiazol-2-yl]-1-ethyl-3-methyl-1H-pyrazole-5-carboxamide 1170586-90-9
N-(3-carbamoylthiophen-2-yl)-1-ethyl-3-methyl-1H-pyrazole-5-carboxamide 1172719-83-3
2-[4-(1-ethyl-3-methyl-1H-pyrazole-5-carbonyl)piperazin-1-yl]-4,7-dimethyl-1,3-benzothiazole 1171514-23-0
2-[4-(1-ethyl-3-methyl-1H-pyrazole-5-carbonyl)piperazin-1-yl]-4-(methylsulfanyl)-1,3-benzothiazole 1170800-77-7
N-benzyl-1-ethyl-N-(5-methoxybenzo[d]thiazol-2-yl)-3-methyl-1H-pyrazole-5-carboxamide 1170433-84-7
N-(2,4-difluorophenyl)-1-ethyl-3-methyl-1H-pyrazole-5-carboxamide 1172078-85-1
N-(3,5-dimethylphenyl)-1-ethyl-3-methyl-1H-pyrazole-5-carboxamide 1171360-51-2
4-(1-ethyl-3-methyl-1H-pyrazole-5-carbonyl)-1,2,3,4-tetrahydroquinoxalin-2-one 1171178-82-7
2-(2-Fluorophenoxy)-1-(4-{[1,2,4]triazolo[4,3-b]pyridazin-6-yl}piperazin-1-yl)ethan-1-one 1021263-49-9
4-([1,2,4]triazolo[4,3-b]pyridazin-6-yl)-N-(2,4-difluorophenyl)piperazine-1-carboxamide 1040639-62-0
2-Dodecyl-3-hydroxy-5-methyl-1,4-naphthoquinone 63968-28-5
N-(3,4-difluorophenyl)-4-{[1,2,4]triazolo[4,3-b]pyridazin-6-yl}piperazine-1-carboxamide 1060205-12-0
1-(3,4-Dimethoxyphenyl)-3-(3-(6-methoxyimidazo[1,2-b]pyridazin-2-yl)phenyl)urea 1060261-94-0
N-(3-fluoro-4-methylphenyl)-4-{[1,2,4]triazolo[4,3-b]pyridazin-6-yl}piperazine-1-carboxamide 1060205-51-7
N-cyclohexyl-4-{[1,2,4]triazolo[4,3-b]pyridazin-6-yl}piperazine-1-carboxamide 1040639-77-7
1-[3-(Trifluoromethoxy)phenyl]propan-2-one 52771-18-3
1-(3-(Trifluoromethylthio)phenyl)propan-1-one 1806418-20-1
N-(2H-1,3-benzodioxol-5-yl)-4-{3-methyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}piperazine-1-carboxamide 1058237-39-0
N-(2-ethylphenyl)-4-{3-methyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}piperazine-1-carboxamide 1058448-10-4
1-[2-(trifluoromethyl)phenyl]-1H-pyrazol-3-amine 1248322-84-0
N-(2,3-dimethylphenyl)-4-{3-methyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}piperazine-1-carboxamide 1058448-12-6
2-(4-Fluorophenoxy)-1-(4-(3-(furan-2-yl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)piperazin-1-yl)ethanone 1058228-92-4
N-(2,3-dimethylphenyl)-4-[3-(furan-2-yl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]piperazine-1-carboxamide 1060177-63-0
N-cyclohexyl-4-[3-(furan-2-yl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]piperazine-1-carboxamide 1058256-25-9
N-benzyl-4-[3-(furan-2-yl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]piperazine-1-carboxamide 1058487-88-9
1-(4-(3-Cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)piperazin-1-yl)-2-(2-fluorophenoxy)ethanone 1058200-24-0
4-{3-cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-N-phenylpiperazine-1-carboxamide 1058200-35-3
4-{3-cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-N-(3,4-difluorophenyl)piperazine-1-carboxamide 1058234-74-4
4-{3-cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-N-(2,4-dimethoxyphenyl)piperazine-1-carboxamide 1058234-75-5
N-(benzo[d][1,3]dioxol-5-yl)-4-(3-cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)piperazine-1-carboxamide 1058234-76-6
N-benzyl-4-{3-cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}piperazine-1-carboxamide 1058444-51-1
2-(2-Chlorophenyl)-1-(4-(3-cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)piperazin-1-yl)ethanone 1058234-87-9
1,5-dimethyl-N-(3-methyl-1-phenyl-1H-pyrazol-5-yl)-1H-pyrazole-3-carboxamide 1171948-24-5
2-[(2-Hydroxyethyl)(pyridin-2-yl)amino]ethan-1-ol 4439-34-3
6-(4-((2-Fluorophenyl)sulfonyl)piperazin-1-yl)-3-(furan-2-yl)-[1,2,4]triazolo[4,3-b]pyridazine 1060226-89-2
1-Piperazinecarboxamide, 4-methyl-n-(1-methylethyl)- 347908-41-2
N-{4-[2-(morpholin-4-yl)-2-oxoethyl]phenyl}thiophene-2-sulfonamide 1060254-89-8
1-(2-Chloroethoxy)-4-(methylsulfanyl)benzene 34334-21-9
1-Chloro-3-[4-(1-methylethylthio)phenoxy]propane 70551-47-2
7H-Purin-6-amine, 2,7,8-trimethyl- 1367865-94-8
N-(6-((2-(indolin-1-yl)-2-oxoethyl)thio)pyridazin-3-yl)-4-methylbenzamide 1021226-62-9
4-methyl-N-(6-((2-((4-methylthiazol-2-yl)amino)-2-oxoethyl)thio)pyridazin-3-yl)benzamide 1021226-69-6
4-methyl-N-{6-[({[(thiophen-2-yl)methyl]carbamoyl}methyl)sulfanyl]pyridazin-3-yl}benzamide 1021227-13-3
2-(2-Fluorobenzyloxy)-butane-1,4-diol 68363-61-1

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