CAS号查询库

CAS号是公开的化学物质信息的最权威的集合。CAS号涵盖从1957年至今的科学文献中确定的物质，其他物质可追溯到20世纪初。它也称CAS编号(CAS Registry Number，或称CAS Number，CAS Rn，CAS #)，又称CAS登录号或CAS登记号码，是某种物质(化合物、高分子材料、生物序列(Biological sequences)、混合物或合金)的唯一的数字识别号码。美国化学会的下设组织化学文摘社(Chemical Abstracts Service，简称CAS)负责为每一种出现在文献中的物质分配一个CAS编号，其目的是为了避免化学物质有多种名称的麻烦，使数据库的检索更为方便。如今几乎所有的化学数据库都允许用CAS编号检索。

名称	英文名	物理化学性质	CAS号	分子式
Ethyl 1-(4-amino-2-chlorophenyl)piperidine-4-carboxylate	Ethyl 1-(4-amino-2-chlorophenyl)piperidine-4-carboxylate	分子量：282.76 密度：N/A 沸点：N/A 熔点：N/A	1354751-64-6	C₁₄H₁₉ClN₂O₂
Indolin-1-yl(6-methoxypyrimidin-4-yl)methanone	Indolin-1-yl(6-methoxypyrimidin-4-yl)methanone	分子量：255.27 密度：N/A 沸点：N/A 熔点：N/A	2034256-11-4	C₁₄H₁₃N₃O₂
6-methoxy-N-(4,5,6,7-tetrahydrobenzo[d]thiazol-2-yl)pyrimidine-4-carboxamide	6-methoxy-N-(4,5,6,7-tetrahydrobenzo[d]thiazol-2-yl)pyrimidine-4-carboxamide	分子量：290.34 密度：N/A 沸点：N/A 熔点：N/A	2034362-23-5	C₁₃H₁₄N₄O₂S
N-(4-(2-amino-2-oxoethyl)thiazol-2-yl)-6-methoxypyrimidine-4-carboxamide	N-(4-(2-amino-2-oxoethyl)thiazol-2-yl)-6-methoxypyrimidine-4-carboxamide	分子量：293.30 密度：N/A 沸点：N/A 熔点：N/A	2034282-58-9	C₁₁H₁₁N₅O₃S
6-methoxy-N-(4-methyl-1,2,5-oxadiazol-3-yl)pyrimidine-4-carboxamide	6-methoxy-N-(4-methyl-1,2,5-oxadiazol-3-yl)pyrimidine-4-carboxamide	分子量：235.20 密度：N/A 沸点：N/A 熔点：N/A	2034248-79-6	C₉H₉N₅O₃
N-(3-([1,2,4]triazolo[4,3-b]pyridazin-6-yl)phenyl)-6-methoxypyrimidine-4-carboxamide	N-(3-([1,2,4]triazolo[4,3-b]pyridazin-6-yl)phenyl)-6-methoxypyrimidine-4-carboxamide	分子量：347.3 密度：N/A 沸点：N/A 熔点：N/A	2034226-91-8	C₁₇H₁₃N₇O₂
N-([1,1'-biphenyl]-2-yl)-6-(pyrrolidin-1-yl)pyrimidine-4-carboxamide	N-([1,1'-biphenyl]-2-yl)-6-(pyrrolidin-1-yl)pyrimidine-4-carboxamide	分子量：344.4 密度：N/A 沸点：N/A 熔点：N/A	2034283-50-4	C₂₁H₂₀N₄O
N-(2-(methylthio)phenyl)-6-(pyrrolidin-1-yl)pyrimidine-4-carboxamide	N-(2-(methylthio)phenyl)-6-(pyrrolidin-1-yl)pyrimidine-4-carboxamide	分子量：314.4 密度：N/A 沸点：N/A 熔点：N/A	2034474-67-2	C₁₆H₁₈N₄OS
N-(2-(6-oxo-3-(thiophen-2-yl)pyridazin-1(6H)-yl)ethyl)-6-(pyrrolidin-1-yl)pyrimidine-4-carboxamide	N-(2-(6-oxo-3-(thiophen-2-yl)pyridazin-1(6H)-yl)ethyl)-6-(pyrrolidin-1-yl)pyrimidine-4-carboxamide	分子量：396.5 密度：N/A 沸点：N/A 熔点：N/A	2034365-44-9	C₁₉H₂₀N₆O₂S
5-(1,2-Dithiolan-3-yl)-1-(3-((3-(o-tolyl)-1,2,4-oxadiazol-5-yl)methyl)piperidin-1-yl)pentan-1-one	5-(1,2-Dithiolan-3-yl)-1-(3-((3-(o-tolyl)-1,2,4-oxadiazol-5-yl)methyl)piperidin-1-yl)pentan-1-one	分子量：445.6 密度：N/A 沸点：N/A 熔点：N/A	2034434-15-4	C₂₃H₃₁N₃O₂S₂
1-(3-((3-(o-Tolyl)-1,2,4-oxadiazol-5-yl)methyl)piperidin-1-yl)-2-(3-(trifluoromethyl)phenyl)ethanone	1-(3-((3-(o-Tolyl)-1,2,4-oxadiazol-5-yl)methyl)piperidin-1-yl)-2-(3-(trifluoromethyl)phenyl)ethanone	分子量：443.5 密度：N/A 沸点：N/A 熔点：N/A	2034362-74-6	C₂₄H₂₄F₃N₃O₂
3-((1-(3-(1H-tetrazol-1-yl)benzoyl)piperidin-4-yl)methyl)-4-(2-fluorophenyl)-1H-1,2,4-triazol-5(4H)-one	3-((1-(3-(1H-tetrazol-1-yl)benzoyl)piperidin-4-yl)methyl)-4-(2-fluorophenyl)-1H-1,2,4-triazol-5(4H)-one	分子量：448.5 密度：N/A 沸点：N/A 熔点：N/A	2034434-22-3	C₂₂H₂₁FN₈O₂
3-((1-(4-(1H-pyrrol-1-yl)benzoyl)piperidin-4-yl)methyl)-4-(2-fluorophenyl)-1H-1,2,4-triazol-5(4H)-one	3-((1-(4-(1H-pyrrol-1-yl)benzoyl)piperidin-4-yl)methyl)-4-(2-fluorophenyl)-1H-1,2,4-triazol-5(4H)-one	分子量：445.5 密度：N/A 沸点：N/A 熔点：N/A	2034474-55-8	C₂₅H₂₄FN₅O₂
3-((1-(3,5-dimethylisoxazole-4-carbonyl)piperidin-4-yl)methyl)-4-(2-fluorophenyl)-1H-1,2,4-triazol-5(4H)-one	3-((1-(3,5-dimethylisoxazole-4-carbonyl)piperidin-4-yl)methyl)-4-(2-fluorophenyl)-1H-1,2,4-triazol-5(4H)-one	分子量：399.4 密度：N/A 沸点：N/A 熔点：N/A	2034363-46-5	C₂₀H₂₂FN₅O₃
3-(2-(4-((4-(2-fluorophenyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-3-yl)methyl)piperidin-1-yl)-2-oxoethyl)oxazolidin-2-one	3-(2-(4-((4-(2-fluorophenyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-3-yl)methyl)piperidin-1-yl)-2-oxoethyl)oxazolidin-2-one	分子量：403.4 密度：N/A 沸点：N/A 熔点：N/A	2034226-60-1	C₁₉H₂₂FN₅O₄
1-methyl-3-(4-((5-oxo-4-(o-tolyl)-4,5-dihydro-1H-1,2,4-triazol-3-yl)methyl)piperidine-1-carbonyl)pyridin-2(1H)-one	1-methyl-3-(4-((5-oxo-4-(o-tolyl)-4,5-dihydro-1H-1,2,4-triazol-3-yl)methyl)piperidine-1-carbonyl)pyridin-2(1H)-one	分子量：407.5 密度：N/A 沸点：N/A 熔点：N/A	2034475-07-3	C₂₂H₂₅N₅O₃
4-(o-tolyl)-3-((1-(3-(trifluoromethyl)benzoyl)piperidin-4-yl)methyl)-1H-1,2,4-triazol-5(4H)-one	4-(o-tolyl)-3-((1-(3-(trifluoromethyl)benzoyl)piperidin-4-yl)methyl)-1H-1,2,4-triazol-5(4H)-one	分子量：444.4 密度：N/A 沸点：N/A 熔点：N/A	2034232-97-6	C₂₃H₂₃F₃N₄O₂
(Z)-3-((1-(3-(benzo[d][1,3]dioxol-5-yl)acryloyl)piperidin-4-yl)methyl)-4-(o-tolyl)-1H-1,2,4-triazol-5(4H)-one	(Z)-3-((1-(3-(benzo[d][1,3]dioxol-5-yl)acryloyl)piperidin-4-yl)methyl)-4-(o-tolyl)-1H-1,2,4-triazol-5(4H)-one	分子量：446.5 密度：N/A 沸点：N/A 熔点：N/A	2035035-94-8	C₂₅H₂₆N₄O₄
N-(2-(2-cyclopropyl-1H-imidazol-1-yl)ethyl)-1-methyl-6-oxo-1,6-dihydropyridazine-3-carboxamide	N-(2-(2-cyclopropyl-1H-imidazol-1-yl)ethyl)-1-methyl-6-oxo-1,6-dihydropyridazine-3-carboxamide	分子量：287.32 密度：N/A 沸点：N/A 熔点：N/A	2034478-04-9	C₁₄H₁₇N₅O₂
2-bromo-N-(2-(2-cyclopropyl-1H-imidazol-1-yl)ethyl)-5-methoxybenzamide	2-bromo-N-(2-(2-cyclopropyl-1H-imidazol-1-yl)ethyl)-5-methoxybenzamide	分子量：364.24 密度：N/A 沸点：N/A 熔点：N/A	2034587-68-1	C₁₆H₁₈BrN₃O₂
2-chloro-N-(2-(2-cyclopropyl-1H-imidazol-1-yl)ethyl)-6-fluorobenzamide	2-chloro-N-(2-(2-cyclopropyl-1H-imidazol-1-yl)ethyl)-6-fluorobenzamide	分子量：307.75 密度：N/A 沸点：N/A 熔点：N/A	2034634-13-2	C₁₅H₁₅ClFN₃O
N-(2-(2-cyclopropyl-1H-imidazol-1-yl)ethyl)benzofuran-2-carboxamide	N-(2-(2-cyclopropyl-1H-imidazol-1-yl)ethyl)benzofuran-2-carboxamide	分子量：295.34 密度：N/A 沸点：N/A 熔点：N/A	2034452-03-2	C₁₇H₁₇N₃O₂
N-(2-(2-cyclopropyl-1H-imidazol-1-yl)ethyl)-4,5,6,7-tetrahydrobenzo[d]isoxazole-3-carboxamide	N-(2-(2-cyclopropyl-1H-imidazol-1-yl)ethyl)-4,5,6,7-tetrahydrobenzo[d]isoxazole-3-carboxamide	分子量：300.36 密度：N/A 沸点：N/A 熔点：N/A	2034452-25-8	C₁₆H₂₀N₄O₂
N-(2-(2-cyclopropyl-1H-imidazol-1-yl)ethyl)-2-(trifluoromethoxy)benzamide	N-(2-(2-cyclopropyl-1H-imidazol-1-yl)ethyl)-2-(trifluoromethoxy)benzamide	分子量：339.31 密度：N/A 沸点：N/A 熔点：N/A	2034581-73-0	C₁₆H₁₆F₃N₃O₂
1-(2-(2-cyclopropyl-1H-imidazol-1-yl)ethyl)-3-(3,4-dimethylphenyl)urea	1-(2-(2-cyclopropyl-1H-imidazol-1-yl)ethyl)-3-(3,4-dimethylphenyl)urea	分子量：298.4 密度：N/A 沸点：N/A 熔点：N/A	2034581-91-2	C₁₇H₂₂N₄O
(4-(3-cyclopropyl-1-methyl-1H-pyrazol-5-yl)piperazin-1-yl)(2-phenyl-2H-1,2,3-triazol-4-yl)methanone	(4-(3-cyclopropyl-1-methyl-1H-pyrazol-5-yl)piperazin-1-yl)(2-phenyl-2H-1,2,3-triazol-4-yl)methanone	分子量：377.4 密度：N/A 沸点：N/A 熔点：N/A	2034448-49-0	C₂₀H₂₃N₇O
(4-(3-cyclopropyl-1-methyl-1H-pyrazol-5-yl)piperazin-1-yl)(1-methyl-3-phenyl-1H-pyrazol-5-yl)methanone	(4-(3-cyclopropyl-1-methyl-1H-pyrazol-5-yl)piperazin-1-yl)(1-methyl-3-phenyl-1H-pyrazol-5-yl)methanone	分子量：390.5 密度：N/A 沸点：N/A 熔点：N/A	2034502-83-3	C₂₂H₂₆N₆O
2-phenyl-N-(2-(trifluoromethyl)pyrazolo[1,5-a]pyrimidin-6-yl)-2H-1,2,3-triazole-4-carboxamide	2-phenyl-N-(2-(trifluoromethyl)pyrazolo[1,5-a]pyrimidin-6-yl)-2H-1,2,3-triazole-4-carboxamide	分子量：373.29 密度：N/A 沸点：N/A 熔点：N/A	2034503-67-6	C₁₆H₁₀F₃N₇O
1-methyl-2-oxo-N-(2-(trifluoromethyl)pyrazolo[1,5-a]pyrimidin-6-yl)-1,2-dihydropyridine-3-carboxamide	1-methyl-2-oxo-N-(2-(trifluoromethyl)pyrazolo[1,5-a]pyrimidin-6-yl)-1,2-dihydropyridine-3-carboxamide	分子量：337.26 密度：N/A 沸点：N/A 熔点：N/A	2034582-98-2	C₁₄H₁₀F₃N₅O₂
2-(4-fluorophenoxy)-N-(pyrazolo[1,5-a]pyrimidin-6-yl)acetamide	2-(4-fluorophenoxy)-N-(pyrazolo[1,5-a]pyrimidin-6-yl)acetamide	分子量：286.26 密度：N/A 沸点：N/A 熔点：N/A	2034583-92-9	C₁₄H₁₁FN₄O₂
1-(4-methoxyphenyl)-5-oxo-N-{pyrazolo[1,5-a]pyrimidin-6-yl}pyrrolidine-3-carboxamide	1-(4-methoxyphenyl)-5-oxo-N-{pyrazolo[1,5-a]pyrimidin-6-yl}pyrrolidine-3-carboxamide	分子量：351.4 密度：N/A 沸点：N/A 熔点：N/A	2034234-83-6	C₁₈H₁₇N₅O₃
N-(pyrazolo[1,5-a]pyrimidin-6-yl)-2-(trifluoromethoxy)benzamide	N-(pyrazolo[1,5-a]pyrimidin-6-yl)-2-(trifluoromethoxy)benzamide	分子量：322.24 密度：N/A 沸点：N/A 熔点：N/A	2034504-48-6	C₁₄H₉F₃N₄O₂
2-(2,4-difluorophenyl)-N-(pyrazolo[1,5-a]pyrimidin-6-yl)acetamide	2-(2,4-difluorophenyl)-N-(pyrazolo[1,5-a]pyrimidin-6-yl)acetamide	分子量：288.25 密度：N/A 沸点：N/A 熔点：N/A	2034621-36-6	C₁₄H₁₀F₂N₄O
4-methoxy-N-(pyrazolo[1,5-a]pyrimidin-6-yl)benzenesulfonamide	4-methoxy-N-(pyrazolo[1,5-a]pyrimidin-6-yl)benzenesulfonamide	分子量：304.33 密度：N/A 沸点：N/A 熔点：N/A	2034234-87-0	C₁₃H₁₂N₄O₃S
2,5-dimethyl-N-(pyrazolo[1,5-a]pyrimidin-6-yl)benzenesulfonamide	2,5-dimethyl-N-(pyrazolo[1,5-a]pyrimidin-6-yl)benzenesulfonamide	分子量：302.35 密度：N/A 沸点：N/A 熔点：N/A	2034584-43-3	C₁₄H₁₄N₄O₂S
2-ethoxy-N-(pyrazolo[1,5-a]pyrimidin-6-yl)benzenesulfonamide	2-ethoxy-N-(pyrazolo[1,5-a]pyrimidin-6-yl)benzenesulfonamide	分子量：318.35 密度：N/A 沸点：N/A 熔点：N/A	2034504-94-2	C₁₄H₁₄N₄O₃S
N-(pyrazolo[1,5-a]pyrimidin-6-yl)-4-(trifluoromethyl)benzenesulfonamide	N-(pyrazolo[1,5-a]pyrimidin-6-yl)-4-(trifluoromethyl)benzenesulfonamide	分子量：342.30 密度：N/A 沸点：N/A 熔点：N/A	2034474-60-5	C₁₃H₉F₃N₄O₂S
5-bromo-N-(pyrazolo[1,5-a]pyrimidin-6-yl)thiophene-2-sulfonamide	5-bromo-N-(pyrazolo[1,5-a]pyrimidin-6-yl)thiophene-2-sulfonamide	分子量：359.2 密度：N/A 沸点：N/A 熔点：N/A	2034621-93-5	C₁₀H₇BrN₄O₂S₂
3,3,3-trifluoro-N-(pyrazolo[1,5-a]pyrimidin-6-yl)propane-1-sulfonamide	3,3,3-trifluoro-N-(pyrazolo[1,5-a]pyrimidin-6-yl)propane-1-sulfonamide	分子量：294.26 密度：N/A 沸点：N/A 熔点：N/A	2034450-32-1	C₉H₉F₃N₄O₂S
1-methyl-N-(2-(5-methyl-3-(pyridin-4-yl)-1H-pyrazol-1-yl)ethyl)-3-phenyl-1H-pyrazole-5-carboxamide	1-methyl-N-(2-(5-methyl-3-(pyridin-4-yl)-1H-pyrazol-1-yl)ethyl)-3-phenyl-1H-pyrazole-5-carboxamide	分子量：386.4 密度：N/A 沸点：N/A 熔点：N/A	2034450-44-5	C₂₂H₂₂N₆O
N-(2-(5-cyclopropyl-3-(thiophen-3-yl)-1H-pyrazol-1-yl)ethyl)-2-ethoxyacetamide	N-(2-(5-cyclopropyl-3-(thiophen-3-yl)-1H-pyrazol-1-yl)ethyl)-2-ethoxyacetamide	分子量：319.4 密度：N/A 沸点：N/A 熔点：N/A	2034633-50-4	C₁₆H₂₁N₃O₂S
N-(2-(5-cyclopropyl-3-(thiophen-3-yl)-1H-pyrazol-1-yl)ethyl)-2-(methylthio)benzamide	N-(2-(5-cyclopropyl-3-(thiophen-3-yl)-1H-pyrazol-1-yl)ethyl)-2-(methylthio)benzamide	分子量：383.5 密度：N/A 沸点：N/A 熔点：N/A	2034633-56-0	C₂₀H₂₁N₃OS₂
1-methyl-N-(2-(6-methyl-1H-imidazo[1,2-b]pyrazol-1-yl)ethyl)-3-phenyl-1H-pyrazole-5-carboxamide	1-methyl-N-(2-(6-methyl-1H-imidazo[1,2-b]pyrazol-1-yl)ethyl)-3-phenyl-1H-pyrazole-5-carboxamide	分子量：348.4 密度：N/A 沸点：N/A 熔点：N/A	2034262-98-9	C₁₉H₂₀N₆O
ethyl 4-((2-(6-methyl-1H-imidazo[1,2-b]pyrazol-1-yl)ethyl)amino)-4-oxobutanoate	ethyl 4-((2-(6-methyl-1H-imidazo[1,2-b]pyrazol-1-yl)ethyl)amino)-4-oxobutanoate	分子量：292.33 密度：N/A 沸点：N/A 熔点：N/A	2034263-13-1	C₁₄H₂₀N₄O₃
N-(2-(6-methyl-1H-imidazo[1,2-b]pyrazol-1-yl)ethyl)furan-3-carboxamide	N-(2-(6-methyl-1H-imidazo[1,2-b]pyrazol-1-yl)ethyl)furan-3-carboxamide	分子量：258.28 密度：N/A 沸点：N/A 熔点：N/A	2034634-51-8	C₁₃H₁₄N₄O₂
N-(2-(6-methyl-1H-imidazo[1,2-b]pyrazol-1-yl)ethyl)quinoxaline-6-carboxamide	N-(2-(6-methyl-1H-imidazo[1,2-b]pyrazol-1-yl)ethyl)quinoxaline-6-carboxamide	分子量：320.3 密度：N/A 沸点：N/A 熔点：N/A	2034238-40-7	C₁₇H₁₆N₆O
N-(2-(6-methyl-1H-imidazo[1,2-b]pyrazol-1-yl)ethyl)-2-(trifluoromethoxy)benzamide	N-(2-(6-methyl-1H-imidazo[1,2-b]pyrazol-1-yl)ethyl)-2-(trifluoromethoxy)benzamide	分子量：352.31 密度：N/A 沸点：N/A 熔点：N/A	2034263-60-8	C₁₆H₁₅F₃N₄O₂
N-(2-(6-methyl-1H-imidazo[1,2-b]pyrazol-1-yl)ethyl)-2-oxoimidazolidine-1-carboxamide	N-(2-(6-methyl-1H-imidazo[1,2-b]pyrazol-1-yl)ethyl)-2-oxoimidazolidine-1-carboxamide	分子量：276.29 密度：N/A 沸点：N/A 熔点：N/A	2034239-02-4	C₁₂H₁₆N₆O₂
N-(2-(6-methyl-1H-imidazo[1,2-b]pyrazol-1-yl)ethyl)-2-(trifluoromethoxy)benzenesulfonamide	N-(2-(6-methyl-1H-imidazo[1,2-b]pyrazol-1-yl)ethyl)-2-(trifluoromethoxy)benzenesulfonamide	分子量：388.4 密度：N/A 沸点：N/A 熔点：N/A	2034364-45-7	C₁₅H₁₅F₃N₄O₃S
2-(2,4-dichlorophenoxy)-N-(2-(3,5-dimethyl-1-(pyridin-2-yl)-1H-pyrazol-4-yl)ethyl)acetamide	2-(2,4-dichlorophenoxy)-N-(2-(3,5-dimethyl-1-(pyridin-2-yl)-1H-pyrazol-4-yl)ethyl)acetamide	分子量：419.3 密度：N/A 沸点：N/A 熔点：N/A	2034336-91-7	C₂₀H₂₀Cl₂N₄O₂