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
2-(1-{5,6-Dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl}azetidin-3-yl)-6-(pyridin-4-yl)-2,3-dihydropyridazin-3-one	2-(1-{5,6-Dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl}azetidin-3-yl)-6-(pyridin-4-yl)-2,3-dihydropyridazin-3-one	分子量：374.4 密度：N/A 沸点：N/A 熔点：N/A	2380191-38-6	C₁₉H₁₈N₈O
3-(4-{5,6-Dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl}piperazin-1-yl)-6-(pyridin-4-yl)pyridazine	3-(4-{5,6-Dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl}piperazin-1-yl)-6-(pyridin-4-yl)pyridazine	分子量：387.4 密度：N/A 沸点：N/A 熔点：N/A	2380180-16-3	C₂₀H₂₁N₉
5,6-Dimethyl-7-[4-(6-pyridin-2-ylpyridazin-3-yl)piperazin-1-yl]-[1,2,4]triazolo[1,5-a]pyrimidine	5,6-Dimethyl-7-[4-(6-pyridin-2-ylpyridazin-3-yl)piperazin-1-yl]-[1,2,4]triazolo[1,5-a]pyrimidine	分子量：387.4 密度：N/A 沸点：N/A 熔点：N/A	2380187-49-3	C₂₀H₂₁N₉
3-(4-{1,6-dimethyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl}piperazin-1-yl)-6-(pyridin-2-yl)pyridazine	3-(4-{1,6-dimethyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl}piperazin-1-yl)-6-(pyridin-2-yl)pyridazine	分子量：387.4 密度：N/A 沸点：N/A 熔点：N/A	2380188-67-8	C₂₀H₂₁N₉
3-(4-{5,6-Dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl}piperazin-1-yl)-6-(pyridin-3-yl)pyridazine	3-(4-{5,6-Dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl}piperazin-1-yl)-6-(pyridin-3-yl)pyridazine	分子量：387.4 密度：N/A 沸点：N/A 熔点：N/A	2380180-18-5	C₂₀H₂₁N₉
3-(4-{1,6-dimethyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl}piperazin-1-yl)-6-(pyridin-3-yl)pyridazine	3-(4-{1,6-dimethyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl}piperazin-1-yl)-6-(pyridin-3-yl)pyridazine	分子量：387.4 密度：N/A 沸点：N/A 熔点：N/A	2380187-00-6	C₂₀H₂₁N₉
1-Cyclopropyl-3-[[1-[5-fluoro-6-(4-methoxyphenyl)pyrimidin-4-yl]azetidin-3-yl]-methylamino]pyrazin-2-one	1-Cyclopropyl-3-[[1-[5-fluoro-6-(4-methoxyphenyl)pyrimidin-4-yl]azetidin-3-yl]-methylamino]pyrazin-2-one	分子量：422.5 密度：N/A 沸点：N/A 熔点：N/A	2380187-02-8	C₂₂H₂₃FN₆O₂
1-(2-Methylpyrimidin-4-yl)-4-[3-(pyridin-4-yl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]-1,4-diazepane	1-(2-Methylpyrimidin-4-yl)-4-[3-(pyridin-4-yl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]-1,4-diazepane	分子量：387.4 密度：N/A 沸点：N/A 熔点：N/A	2380180-26-5	C₂₀H₂₁N₉
1-(3-Methyl-1,2,4-thiadiazol-5-yl)-4-[3-(pyridin-4-yl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]-1,4-diazepane	1-(3-Methyl-1,2,4-thiadiazol-5-yl)-4-[3-(pyridin-4-yl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]-1,4-diazepane	分子量：393.5 密度：N/A 沸点：N/A 熔点：N/A	2380192-41-4	C₁₈H₁₉N₉S
N'-(3,4-Dimethylphenyl)-N-[(1-morpholin-4-ylcyclobutyl)methyl]oxamide	N'-(3,4-Dimethylphenyl)-N-[(1-morpholin-4-ylcyclobutyl)methyl]oxamide	分子量：345.4 密度：N/A 沸点：N/A 熔点：N/A	2380177-83-1	C₁₉H₂₇N₃O₃
3-(2H-1,3-benzodioxol-5-yl)-1-{[4-(morpholin-4-yl)thian-4-yl]methyl}urea	3-(2H-1,3-benzodioxol-5-yl)-1-{[4-(morpholin-4-yl)thian-4-yl]methyl}urea	分子量：379.5 密度：N/A 沸点：N/A 熔点：N/A	2380192-52-7	C₁₈H₂₅N₃O₄S
3-(4-Fluorophenyl)-6-(4-{[5-(oxan-4-yl)-1,3,4-oxadiazol-2-yl]methyl}piperazin-1-yl)pyridazine	3-(4-Fluorophenyl)-6-(4-{[5-(oxan-4-yl)-1,3,4-oxadiazol-2-yl]methyl}piperazin-1-yl)pyridazine	分子量：424.5 密度：N/A 沸点：N/A 熔点：N/A	2380190-62-3	C₂₂H₂₅FN₆O₂
6-[3-(2-Methylbenzimidazol-1-yl)azetidin-1-yl]-[1,2,4]triazolo[4,3-b]pyridazine	6-[3-(2-Methylbenzimidazol-1-yl)azetidin-1-yl]-[1,2,4]triazolo[4,3-b]pyridazine	分子量：305.34 密度：N/A 沸点：N/A 熔点：N/A	2380192-48-1	C₁₆H₁₅N₇
N'-(2,6-dimethylphenyl)-N-{[1-(morpholin-4-yl)cyclobutyl]methyl}ethanediamide	N'-(2,6-dimethylphenyl)-N-{[1-(morpholin-4-yl)cyclobutyl]methyl}ethanediamide	分子量：345.4 密度：N/A 沸点：N/A 熔点：N/A	2380179-91-7	C₁₉H₂₇N₃O₃
Tert-butyl 4-[(4-oxo-3,4-dihydroquinazolin-3-yl)methyl]piperidine-1-carboxylate	Tert-butyl 4-[(4-oxo-3,4-dihydroquinazolin-3-yl)methyl]piperidine-1-carboxylate	分子量：343.4 密度：N/A 沸点：N/A 熔点：N/A	2380180-90-3	C₁₉H₂₅N₃O₃
tert-butyl 3-(2-methyl-1H-1,3-benzodiazol-1-yl)azetidine-1-carboxylate	tert-butyl 3-(2-methyl-1H-1,3-benzodiazol-1-yl)azetidine-1-carboxylate	分子量：287.36 密度：N/A 沸点：N/A 熔点：N/A	2380180-19-6	C₁₆H₂₁N₃O₂
2-{4-[6-(pyridin-4-yl)pyridazin-3-yl]piperazin-1-yl}-4H-pyrido[1,2-a]pyrimidin-4-one	2-{4-[6-(pyridin-4-yl)pyridazin-3-yl]piperazin-1-yl}-4H-pyrido[1,2-a]pyrimidin-4-one	分子量：385.4 密度：N/A 沸点：N/A 熔点：N/A	2380176-31-6	C₂₁H₁₉N₇O
2-[4-(6-Pyridin-2-ylpyridazin-3-yl)piperazin-1-yl]pyrido[1,2-a]pyrimidin-4-one	2-[4-(6-Pyridin-2-ylpyridazin-3-yl)piperazin-1-yl]pyrido[1,2-a]pyrimidin-4-one	分子量：385.4 密度：N/A 沸点：N/A 熔点：N/A	2380190-72-5	C₂₁H₁₉N₇O
2-{4-[6-(pyridin-3-yl)pyridazin-3-yl]piperazin-1-yl}-4H-pyrido[1,2-a]pyrimidin-4-one	2-{4-[6-(pyridin-3-yl)pyridazin-3-yl]piperazin-1-yl}-4H-pyrido[1,2-a]pyrimidin-4-one	分子量：385.4 密度：N/A 沸点：N/A 熔点：N/A	2380187-55-1	C₂₁H₁₉N₇O
2-methyl-1-(1-{3-methyl-3H-imidazo[4,5-b]pyridin-2-yl}azetidin-3-yl)-1H-1,3-benzodiazole	2-methyl-1-(1-{3-methyl-3H-imidazo[4,5-b]pyridin-2-yl}azetidin-3-yl)-1H-1,3-benzodiazole	分子量：318.4 密度：N/A 沸点：N/A 熔点：N/A	2380190-69-0	C₁₈H₁₈N₆
1-(4,6-Dimethylpyrimidin-2-yl)-4-[3-(pyridin-4-yl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]-1,4-diazepane	1-(4,6-Dimethylpyrimidin-2-yl)-4-[3-(pyridin-4-yl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]-1,4-diazepane	分子量：401.5 密度：N/A 沸点：N/A 熔点：N/A	2380192-72-1	C₂₁H₂₃N₉
1-(1-{2-methylpyrazolo[1,5-a]pyrazin-4-yl}azetidin-3-yl)-1H-1,3-benzodiazole	1-(1-{2-methylpyrazolo[1,5-a]pyrazin-4-yl}azetidin-3-yl)-1H-1,3-benzodiazole	分子量：304.3 密度：N/A 沸点：N/A 熔点：N/A	2380193-32-6	C₁₇H₁₆N₆
3-(Pyridin-2-yl)-6-(4-{thieno[3,2-d]pyrimidin-4-yl}piperazin-1-yl)pyridazine	3-(Pyridin-2-yl)-6-(4-{thieno[3,2-d]pyrimidin-4-yl}piperazin-1-yl)pyridazine	分子量：375.5 密度：N/A 沸点：N/A 熔点：N/A	2380192-76-5	C₁₉H₁₇N₇S
1-{1-[3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]azetidin-3-yl}-1H-1,3-benzodiazole	1-{1-[3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]azetidin-3-yl}-1H-1,3-benzodiazole	分子量：359.31 密度：N/A 沸点：N/A 熔点：N/A	2380193-78-0	C₁₆H₁₂F₃N₇
2-methyl-1-(1-{pyrido[2,3-d]pyrimidin-4-yl}azetidin-3-yl)-1H-1,3-benzodiazole	2-methyl-1-(1-{pyrido[2,3-d]pyrimidin-4-yl}azetidin-3-yl)-1H-1,3-benzodiazole	分子量：316.4 密度：N/A 沸点：N/A 熔点：N/A	2380179-22-4	C₁₈H₁₆N₆
N'-(3-methoxyphenyl)-N-{[1-(morpholin-4-yl)cyclobutyl]methyl}ethanediamide	N'-(3-methoxyphenyl)-N-{[1-(morpholin-4-yl)cyclobutyl]methyl}ethanediamide	分子量：347.4 密度：N/A 沸点：N/A 熔点：N/A	2380193-82-6	C₁₈H₂₅N₃O₄
2-[3-(2-Methylbenzimidazol-1-yl)azetidin-1-yl]pyrido[1,2-a]pyrimidin-4-one	2-[3-(2-Methylbenzimidazol-1-yl)azetidin-1-yl]pyrido[1,2-a]pyrimidin-4-one	分子量：331.4 密度：N/A 沸点：N/A 熔点：N/A	2380194-06-7	C₁₉H₁₇N₅O
1-(5-Fluoropyrimidin-2-yl)-4-[3-(pyridin-4-yl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]-1,4-diazepane	1-(5-Fluoropyrimidin-2-yl)-4-[3-(pyridin-4-yl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]-1,4-diazepane	分子量：391.4 密度：N/A 沸点：N/A 熔点：N/A	2380193-02-0	C₁₉H₁₈FN₉
1-(5-Fluoropyrimidin-4-yl)-4-[3-(pyridin-4-yl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]-1,4-diazepane	1-(5-Fluoropyrimidin-4-yl)-4-[3-(pyridin-4-yl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]-1,4-diazepane	分子量：391.4 密度：N/A 沸点：N/A 熔点：N/A	2380191-72-8	C₁₉H₁₈FN₉
6-(3-fluorophenyl)-2-{1-[(1-methyl-1H-imidazol-2-yl)sulfonyl]azetidin-3-yl}-2,3-dihydropyridazin-3-one	6-(3-fluorophenyl)-2-{1-[(1-methyl-1H-imidazol-2-yl)sulfonyl]azetidin-3-yl}-2,3-dihydropyridazin-3-one	分子量：389.4 密度：N/A 沸点：N/A 熔点：N/A	2380186-02-5	C₁₇H₁₆FN₅O₃S
6-(3-fluorophenyl)-2-{1-[(1-methyl-1H-pyrazol-4-yl)sulfonyl]azetidin-3-yl}-2,3-dihydropyridazin-3-one	6-(3-fluorophenyl)-2-{1-[(1-methyl-1H-pyrazol-4-yl)sulfonyl]azetidin-3-yl}-2,3-dihydropyridazin-3-one	分子量：389.4 密度：N/A 沸点：N/A 熔点：N/A	2380185-45-3	C₁₇H₁₆FN₅O₃S
N-[(thiophen-2-yl)methyl]-4-[6-(trifluoromethyl)pyridazin-3-yl]piperazine-1-carboxamide	N-[(thiophen-2-yl)methyl]-4-[6-(trifluoromethyl)pyridazin-3-yl]piperazine-1-carboxamide	分子量：371.4 密度：N/A 沸点：N/A 熔点：N/A	2380179-62-2	C₁₅H₁₆F₃N₅OS
5-bromo-2-chloro-N-{[1-(morpholin-4-yl)cyclobutyl]methyl}benzamide	5-bromo-2-chloro-N-{[1-(morpholin-4-yl)cyclobutyl]methyl}benzamide	分子量：387.7 密度：N/A 沸点：N/A 熔点：N/A	2380178-62-9	C₁₆H₂₀BrClN₂O₂
N'-[2-(cyclohex-1-en-1-yl)ethyl]-N-{[4-(morpholin-4-yl)thian-4-yl]methyl}ethanediamide	N'-[2-(cyclohex-1-en-1-yl)ethyl]-N-{[4-(morpholin-4-yl)thian-4-yl]methyl}ethanediamide	分子量：395.6 密度：N/A 沸点：N/A 熔点：N/A	2380188-02-1	C₂₀H₃₃N₃O₃S
2-{1-[2-(2,3-Dihydro-1,4-benzodioxin-2-yl)acetyl]azetidin-3-yl}-6-(pyridin-4-yl)-2,3-dihydropyridazin-3-one	2-{1-[2-(2,3-Dihydro-1,4-benzodioxin-2-yl)acetyl]azetidin-3-yl}-6-(pyridin-4-yl)-2,3-dihydropyridazin-3-one	分子量：404.4 密度：N/A 沸点：N/A 熔点：N/A	2380192-86-7	C₂₂H₂₀N₄O₄
1-(1-{pyrido[3,4-d]pyrimidin-4-yl}azetidin-3-yl)-1H-1,3-benzodiazole	1-(1-{pyrido[3,4-d]pyrimidin-4-yl}azetidin-3-yl)-1H-1,3-benzodiazole	分子量：302.33 密度：N/A 沸点：N/A 熔点：N/A	2380188-04-3	C₁₇H₁₄N₆
2,5-Dimethyl-7-[3-(2-methylbenzimidazol-1-yl)azetidin-1-yl]pyrazolo[1,5-a]pyrimidine	2,5-Dimethyl-7-[3-(2-methylbenzimidazol-1-yl)azetidin-1-yl]pyrazolo[1,5-a]pyrimidine	分子量：332.4 密度：N/A 沸点：N/A 熔点：N/A	2380193-30-4	C₁₉H₂₀N₆
N-(oxan-4-yl)-4-[3-(pyridin-4-yl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]-1,4-diazepane-1-carboxamide	N-(oxan-4-yl)-4-[3-(pyridin-4-yl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]-1,4-diazepane-1-carboxamide	分子量：422.5 密度：N/A 沸点：N/A 熔点：N/A	2380182-24-9	C₂₁H₂₆N₈O₂
N'-[2-(methylsulfanyl)phenyl]-N-{[1-(morpholin-4-yl)cyclobutyl]methyl}ethanediamide	N'-[2-(methylsulfanyl)phenyl]-N-{[1-(morpholin-4-yl)cyclobutyl]methyl}ethanediamide	分子量：363.5 密度：N/A 沸点：N/A 熔点：N/A	2380183-58-2	C₁₈H₂₅N₃O₃S
N'-(2H-1,3-benzodioxol-5-yl)-N-{[1-(morpholin-4-yl)cyclobutyl]methyl}ethanediamide	N'-(2H-1,3-benzodioxol-5-yl)-N-{[1-(morpholin-4-yl)cyclobutyl]methyl}ethanediamide	分子量：361.4 密度：N/A 沸点：N/A 熔点：N/A	2380188-21-4	C₁₈H₂₃N₃O₅
4-(3,5-Dimethylpyrazol-1-yl)-6-[[1-(1-methylimidazol-2-yl)sulfonylpiperidin-4-yl]methoxy]pyrimidine	4-(3,5-Dimethylpyrazol-1-yl)-6-[[1-(1-methylimidazol-2-yl)sulfonylpiperidin-4-yl]methoxy]pyrimidine	分子量：431.5 密度：N/A 沸点：N/A 熔点：N/A	2380193-71-3	C₁₉H₂₅N₇O₃S
1-(5-Ethylpyrimidin-2-yl)-4-[3-(pyridin-4-yl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]-1,4-diazepane	1-(5-Ethylpyrimidin-2-yl)-4-[3-(pyridin-4-yl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]-1,4-diazepane	分子量：401.5 密度：N/A 沸点：N/A 熔点：N/A	2380181-72-4	C₂₁H₂₃N₉
2-{1-[4-(Morpholin-4-yl)benzoyl]azetidin-3-yl}-6-(pyridin-4-yl)-2,3-dihydropyridazin-3-one	2-{1-[4-(Morpholin-4-yl)benzoyl]azetidin-3-yl}-6-(pyridin-4-yl)-2,3-dihydropyridazin-3-one	分子量：417.5 密度：N/A 沸点：N/A 熔点：N/A	2380189-31-9	C₂₃H₂₃N₅O₃
N-{[1-(morpholin-4-yl)cyclobutyl]methyl}-N'-(2-phenylethyl)ethanediamide	N-{[1-(morpholin-4-yl)cyclobutyl]methyl}-N'-(2-phenylethyl)ethanediamide	分子量：345.4 密度：N/A 沸点：N/A 熔点：N/A	2380181-55-3	C₁₉H₂₇N₃O₃
N'-(3-chloro-4-methylphenyl)-N-{[1-(morpholin-4-yl)cyclobutyl]methyl}ethanediamide	N'-(3-chloro-4-methylphenyl)-N-{[1-(morpholin-4-yl)cyclobutyl]methyl}ethanediamide	分子量：365.9 密度：N/A 沸点：N/A 熔点：N/A	2380189-36-4	C₁₈H₂₄ClN₃O₃
N'-(2-Cyanophenyl)-N-[(4-morpholin-4-ylthian-4-yl)methyl]oxamide	N'-(2-Cyanophenyl)-N-[(4-morpholin-4-ylthian-4-yl)methyl]oxamide	分子量：388.5 密度：N/A 沸点：N/A 熔点：N/A	2380189-46-6	C₁₉H₂₄N₄O₃S
Tert-butyl 3-[(4-chlorophenyl)methyl]-2,4-dioxo-1,3,7-triazaspiro[4.5]decane-7-carboxylate	Tert-butyl 3-[(4-chlorophenyl)methyl]-2,4-dioxo-1,3,7-triazaspiro[4.5]decane-7-carboxylate	分子量：393.9 密度：N/A 沸点：N/A 熔点：N/A	2379953-76-9	C₁₉H₂₄ClN₃O₄
3-[4-(5-Methylpyrimidin-2-yl)piperazin-1-yl]-6-phenylpyridazine	3-[4-(5-Methylpyrimidin-2-yl)piperazin-1-yl]-6-phenylpyridazine	分子量：332.4 密度：N/A 沸点：N/A 熔点：N/A	2380178-76-5	C₁₉H₂₀N₆
3-[3-[1,3-Benzoxazol-2-yl(methyl)amino]azetidin-1-yl]pyrazine-2-carbonitrile	3-[3-[1,3-Benzoxazol-2-yl(methyl)amino]azetidin-1-yl]pyrazine-2-carbonitrile	分子量：306.32 密度：N/A 沸点：N/A 熔点：N/A	2380178-42-5	C₁₆H₁₄N₆O
N-Benzyl-3-oxo-4-[2-(trifluoromethyl)pyridin-4-yl]piperazine-1-carboxamide	N-Benzyl-3-oxo-4-[2-(trifluoromethyl)pyridin-4-yl]piperazine-1-carboxamide	分子量：378.3 密度：N/A 沸点：N/A 熔点：N/A	2380178-49-2	C₁₈H₁₇F₃N₄O₂