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
4-(4-Chlorophenyl)-1-(5-methylpyrimidin-2-yl)piperidin-4-ol	4-(4-Chlorophenyl)-1-(5-methylpyrimidin-2-yl)piperidin-4-ol	分子量：303.78 密度：N/A 沸点：N/A 熔点：N/A	2770611-15-7	C₁₆H₁₈ClN₃O
4-(4-Chlorophenyl)-1-(3-cyclopropyl-1,2,4-thiadiazol-5-yl)piperidin-4-ol	4-(4-Chlorophenyl)-1-(3-cyclopropyl-1,2,4-thiadiazol-5-yl)piperidin-4-ol	分子量：335.9 密度：N/A 沸点：N/A 熔点：N/A	2770643-71-3	C₁₆H₁₈ClN₃OS
7-[(3-chlorophenyl)methyl]-3-(trifluoromethyl)-5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyrazine	7-[(3-chlorophenyl)methyl]-3-(trifluoromethyl)-5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyrazine	分子量：316.71 密度：N/A 沸点：N/A 熔点：N/A	2770643-72-4	C₁₃H₁₂ClF₃N₄
4-Methyl-2-(methylsulfanyl)-6-[4-(2,2,2-trifluoroethyl)piperazin-1-yl]pyrimidine	4-Methyl-2-(methylsulfanyl)-6-[4-(2,2,2-trifluoroethyl)piperazin-1-yl]pyrimidine	分子量：306.35 密度：N/A 沸点：N/A 熔点：N/A	2770602-85-0	C₁₂H₁₇F₃N₄S
6-[2-(4,4-Difluoropiperidine-1-carbonyl)morpholin-4-yl]-1,3-dimethyl-1,2,3,4-tetrahydropyrimidine-2,4-dione	6-[2-(4,4-Difluoropiperidine-1-carbonyl)morpholin-4-yl]-1,3-dimethyl-1,2,3,4-tetrahydropyrimidine-2,4-dione	分子量：372.37 密度：N/A 沸点：N/A 熔点：N/A	2770602-91-8	C₁₆H₂₂F₂N₄O₄
4-(4-Chlorophenyl)-1-(3,6-dimethylpyrazin-2-yl)piperidin-4-ol	4-(4-Chlorophenyl)-1-(3,6-dimethylpyrazin-2-yl)piperidin-4-ol	分子量：317.8 密度：N/A 沸点：N/A 熔点：N/A	2770620-09-0	C₁₇H₂₀ClN₃O
4-(4-Chlorophenyl)-1-(4-methyl-1,3-thiazol-2-yl)piperidin-4-ol	4-(4-Chlorophenyl)-1-(4-methyl-1,3-thiazol-2-yl)piperidin-4-ol	分子量：308.8 密度：N/A 沸点：N/A 熔点：N/A	2770611-83-9	C₁₅H₁₇ClN₂OS
4-Cyclopropyl-6-{4-[(3-fluoropyridin-4-yl)methyl]-3-methylpiperazin-1-yl}-2-(methylsulfanyl)pyrimidine	4-Cyclopropyl-6-{4-[(3-fluoropyridin-4-yl)methyl]-3-methylpiperazin-1-yl}-2-(methylsulfanyl)pyrimidine	分子量：373.5 密度：N/A 沸点：N/A 熔点：N/A	2770643-94-0	C₁₉H₂₄FN₅S
1-(5-Tert-butyl-1,3,4-thiadiazol-2-yl)-4-(4-chlorophenyl)piperidin-4-ol	1-(5-Tert-butyl-1,3,4-thiadiazol-2-yl)-4-(4-chlorophenyl)piperidin-4-ol	分子量：351.9 密度：N/A 沸点：N/A 熔点：N/A	2770620-90-9	C₁₇H₂₂ClN₃OS
3-(fluoromethyl)-1-{1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl}piperidine	3-(fluoromethyl)-1-{1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl}piperidine	分子量：249.29 密度：N/A 沸点：N/A 熔点：N/A	2770612-78-5	C₁₂H₁₆FN₅
2-[2-(thiomorpholine-4-carbonyl)morpholin-4-yl]-5H,7H,8H-pyrano[4,3-b]pyridine-3-carbonitrile	2-[2-(thiomorpholine-4-carbonyl)morpholin-4-yl]-5H,7H,8H-pyrano[4,3-b]pyridine-3-carbonitrile	分子量：374.5 密度：N/A 沸点：N/A 熔点：N/A	2770612-90-1	C₁₈H₂₂N₄O₃S
1-[(3,5-difluorophenyl)methyl]-2-methyl-4-[2-(1H-1,2,3-triazol-1-yl)ethyl]piperazine	1-[(3,5-difluorophenyl)methyl]-2-methyl-4-[2-(1H-1,2,3-triazol-1-yl)ethyl]piperazine	分子量：321.37 密度：N/A 沸点：N/A 熔点：N/A	2770619-68-4	C₁₆H₂₁F₂N₅
4-({4-[1-(2-Methylpropyl)-6-oxo-1,6-dihydropyridazin-3-yl]piperazin-1-yl}methyl)benzonitrile	4-({4-[1-(2-Methylpropyl)-6-oxo-1,6-dihydropyridazin-3-yl]piperazin-1-yl}methyl)benzonitrile	分子量：351.4 密度：N/A 沸点：N/A 熔点：N/A	2770621-66-2	C₂₀H₂₅N₅O
1-[(5-Methyl-1,2,4-oxadiazol-3-yl)methyl]-4-(propane-2-sulfonyl)piperazine	1-[(5-Methyl-1,2,4-oxadiazol-3-yl)methyl]-4-(propane-2-sulfonyl)piperazine	分子量：288.37 密度：N/A 沸点：N/A 熔点：N/A	2770625-34-6	C₁₁H₂₀N₄O₃S
4-{1-[(4-Methoxy-3,5-dimethylpyridin-2-yl)methyl]piperidine-3-carbonyl}morpholine	4-{1-[(4-Methoxy-3,5-dimethylpyridin-2-yl)methyl]piperidine-3-carbonyl}morpholine	分子量：347.5 密度：N/A 沸点：N/A 熔点：N/A	2770604-44-7	C₁₉H₂₉N₃O₃
4-(4-Chlorophenyl)-1-[2-(trifluoromethyl)pyridin-4-yl]piperidin-4-ol	4-(4-Chlorophenyl)-1-[2-(trifluoromethyl)pyridin-4-yl]piperidin-4-ol	分子量：356.8 密度：N/A 沸点：N/A 熔点：N/A	2770626-82-7	C₁₇H₁₆ClF₃N₂O
7-(2,2-dimethylcyclopropanecarbonyl)-6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridine	7-(2,2-dimethylcyclopropanecarbonyl)-6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridine	分子量：281.35 密度：N/A 沸点：N/A 熔点：N/A	2770644-24-9	C₁₇H₁₉N₃O
2-{4-[(3,6-Dimethylpyrazin-2-yl)oxy]piperidin-1-yl}-1-(4-methylpiperidin-1-yl)ethan-1-one	2-{4-[(3,6-Dimethylpyrazin-2-yl)oxy]piperidin-1-yl}-1-(4-methylpiperidin-1-yl)ethan-1-one	分子量：346.5 密度：N/A 沸点：N/A 熔点：N/A	2770588-51-5	C₁₉H₃₀N₄O₂
3-bromo-7-cyclobutanecarbonyl-6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridine	3-bromo-7-cyclobutanecarbonyl-6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridine	分子量：346.22 密度：N/A 沸点：N/A 熔点：N/A	2770588-57-1	C₁₆H₁₆BrN₃O
7-(oxolane-2-carbonyl)-6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridine	7-(oxolane-2-carbonyl)-6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridine	分子量：283.32 密度：N/A 沸点：N/A 熔点：N/A	2770583-31-6	C₁₆H₁₇N₃O₂
N-methyl-N-(1-{pyrido[3,4-d]pyrimidin-4-yl}pyrrolidin-3-yl)acetamide	N-methyl-N-(1-{pyrido[3,4-d]pyrimidin-4-yl}pyrrolidin-3-yl)acetamide	分子量：271.32 密度：N/A 沸点：N/A 熔点：N/A	2770590-40-2	C₁₄H₁₇N₅O
1-[(5-methyl-1,2,4-oxadiazol-3-yl)methyl]-4-{2-methyl-5H,6H,7H-cyclopenta[d]pyrimidin-4-yl}piperazine	1-[(5-methyl-1,2,4-oxadiazol-3-yl)methyl]-4-{2-methyl-5H,6H,7H-cyclopenta[d]pyrimidin-4-yl}piperazine	分子量：314.39 密度：N/A 沸点：N/A 熔点：N/A	2770614-83-8	C₁₆H₂₂N₆O
1-(2-oxo-2-{6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridin-7-yl}ethyl)pyrrolidin-2-one	1-(2-oxo-2-{6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridin-7-yl}ethyl)pyrrolidin-2-one	分子量：310.35 密度：N/A 沸点：N/A 熔点：N/A	2770593-45-6	C₁₇H₁₈N₄O₂
N-{1-[5-bromo-3-(trifluoromethyl)pyridin-2-yl]piperidin-4-yl}-2,2-dimethylpropanamide	N-{1-[5-bromo-3-(trifluoromethyl)pyridin-2-yl]piperidin-4-yl}-2,2-dimethylpropanamide	分子量：408.26 密度：N/A 沸点：N/A 熔点：N/A	2770633-93-5	C₁₆H₂₁BrF₃N₃O
5-{6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridine-7-carbonyl}pyrrolidin-2-one	5-{6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridine-7-carbonyl}pyrrolidin-2-one	分子量：296.32 密度：N/A 沸点：N/A 熔点：N/A	2770582-35-7	C₁₆H₁₆N₄O₂
4-[5-(5-Chloropyridin-2-yl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]-6-ethyl-5-fluoropyrimidine	4-[5-(5-Chloropyridin-2-yl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]-6-ethyl-5-fluoropyrimidine	分子量：347.8 密度：N/A 沸点：N/A 熔点：N/A	2770642-41-4	C₁₇H₁₉ClFN₅
4-[(4-{[(3-Chloropyridin-4-yl)oxy]methyl}piperidin-1-yl)methyl]-1-methyl-1,2-dihydropyridin-2-one	4-[(4-{[(3-Chloropyridin-4-yl)oxy]methyl}piperidin-1-yl)methyl]-1-methyl-1,2-dihydropyridin-2-one	分子量：347.8 密度：N/A 沸点：N/A 熔点：N/A	2770590-68-4	C₁₈H₂₂ClN₃O₂
3-bromo-7-(oxolane-3-carbonyl)-6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridine	3-bromo-7-(oxolane-3-carbonyl)-6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridine	分子量：362.22 密度：N/A 沸点：N/A 熔点：N/A	2770607-22-0	C₁₆H₁₆BrN₃O₂
3-cyclopropyl-N-methyl-N-[2-(pyridin-4-yl)ethyl]-1,2,4-thiadiazol-5-amine	3-cyclopropyl-N-methyl-N-[2-(pyridin-4-yl)ethyl]-1,2,4-thiadiazol-5-amine	分子量：260.36 密度：N/A 沸点：N/A 熔点：N/A	2770591-66-5	C₁₃H₁₆N₄S
3-fluoro-2-(3-{[2-(propan-2-yl)-1H-imidazol-1-yl]methyl}azetidin-1-yl)-5-(trifluoromethyl)pyridine	3-fluoro-2-(3-{[2-(propan-2-yl)-1H-imidazol-1-yl]methyl}azetidin-1-yl)-5-(trifluoromethyl)pyridine	分子量：342.33 密度：N/A 沸点：N/A 熔点：N/A	2770623-06-6	C₁₆H₁₈F₄N₄
1-{6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridin-7-yl}propan-1-one	1-{6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridin-7-yl}propan-1-one	分子量：241.29 密度：N/A 沸点：N/A 熔点：N/A	2770642-99-2	C₁₄H₁₅N₃O
Methyl[(3-methyl-1,2,4-oxadiazol-5-yl)methyl][2-(pyridin-4-yl)ethyl]amine	Methyl[(3-methyl-1,2,4-oxadiazol-5-yl)methyl][2-(pyridin-4-yl)ethyl]amine	分子量：232.28 密度：N/A 沸点：N/A 熔点：N/A	2770592-69-1	C₁₂H₁₆N₄O
Methyl[2-(pyridin-4-yl)ethyl]{[5-(trifluoromethyl)-1,3,4-oxadiazol-2-yl]methyl}amine	Methyl[2-(pyridin-4-yl)ethyl]{[5-(trifluoromethyl)-1,3,4-oxadiazol-2-yl]methyl}amine	分子量：286.25 密度：N/A 沸点：N/A 熔点：N/A	2770587-88-5	C₁₂H₁₃F₃N₄O
5-bromo-3-fluoro-2-(3-{[2-(propan-2-yl)-1H-imidazol-1-yl]methyl}azetidin-1-yl)pyridine	5-bromo-3-fluoro-2-(3-{[2-(propan-2-yl)-1H-imidazol-1-yl]methyl}azetidin-1-yl)pyridine	分子量：353.23 密度：N/A 沸点：N/A 熔点：N/A	2770592-70-4	C₁₅H₁₈BrFN₄
3-methyl-1-{6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridin-7-yl}pentan-1-one	3-methyl-1-{6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridin-7-yl}pentan-1-one	分子量：283.37 密度：N/A 沸点：N/A 熔点：N/A	2770592-72-6	C₁₇H₂₁N₃O
4-methyl-1-{6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridin-7-yl}pentan-1-one	4-methyl-1-{6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridin-7-yl}pentan-1-one	分子量：283.37 密度：N/A 沸点：N/A 熔点：N/A	2770592-73-7	C₁₇H₂₁N₃O
[1-(1,1-Dioxo-1,2-benzothiazol-3-yl)azetidin-3-yl]-morpholin-4-ylmethanone	[1-(1,1-Dioxo-1,2-benzothiazol-3-yl)azetidin-3-yl]-morpholin-4-ylmethanone	分子量：335.4 密度：N/A 沸点：N/A 熔点：N/A	2770616-83-4	C₁₅H₁₇N₃O₄S
3-bromo-7-(oxane-4-carbonyl)-6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridine	3-bromo-7-(oxane-4-carbonyl)-6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridine	分子量：376.2 密度：N/A 沸点：N/A 熔点：N/A	2770616-92-5	C₁₇H₁₈BrN₃O₂
4-[(3-{[(3-Chloropyridin-2-yl)oxy]methyl}piperidin-1-yl)methyl]-1-methyl-1,2-dihydropyridin-2-one	4-[(3-{[(3-Chloropyridin-2-yl)oxy]methyl}piperidin-1-yl)methyl]-1-methyl-1,2-dihydropyridin-2-one	分子量：347.8 密度：N/A 沸点：N/A 熔点：N/A	2770592-00-0	C₁₈H₂₂ClN₃O₂
4-(3-{[(6-Cyclopropylpyridazin-3-yl)oxy]methyl}pyrrolidin-1-yl)-2-methylpyrimidine	4-(3-{[(6-Cyclopropylpyridazin-3-yl)oxy]methyl}pyrrolidin-1-yl)-2-methylpyrimidine	分子量：311.4 密度：N/A 沸点：N/A 熔点：N/A	2770610-97-2	C₁₇H₂₁N₅O
1-{3-bromo-6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridin-7-yl}-2-ethoxyethan-1-one	1-{3-bromo-6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridin-7-yl}-2-ethoxyethan-1-one	分子量：350.21 密度：N/A 沸点：N/A 熔点：N/A	2770599-84-1	C₁₅H₁₆BrN₃O₂
5-Chloro-2-[5-(cyclopropanesulfonyl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]pyridine	5-Chloro-2-[5-(cyclopropanesulfonyl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]pyridine	分子量：327.8 密度：N/A 沸点：N/A 熔点：N/A	2770630-36-7	C₁₄H₁₈ClN₃O₂S
2-Cyclopropyl-4-[5-(pyridin-2-yl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]pyrimidine	2-Cyclopropyl-4-[5-(pyridin-2-yl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]pyrimidine	分子量：307.4 密度：N/A 沸点：N/A 熔点：N/A	2770587-21-6	C₁₈H₂₁N₅
2-(4,4-Difluoropiperidine-1-carbonyl)-4-{2-methylpyrido[3,4-d]pyrimidin-4-yl}morpholine	2-(4,4-Difluoropiperidine-1-carbonyl)-4-{2-methylpyrido[3,4-d]pyrimidin-4-yl}morpholine	分子量：377.4 密度：N/A 沸点：N/A 熔点：N/A	2770583-22-5	C₁₈H₂₁F₂N₅O₂
6-[4-(9-methyl-9H-purin-6-yl)piperazin-1-yl]-2-(propan-2-yl)-2,3-dihydropyridazin-3-one	6-[4-(9-methyl-9H-purin-6-yl)piperazin-1-yl]-2-(propan-2-yl)-2,3-dihydropyridazin-3-one	分子量：354.4 密度：N/A 沸点：N/A 熔点：N/A	2770618-48-7	C₁₇H₂₂N₈O
6-[4-(7-methyl-7H-purin-6-yl)piperazin-1-yl]-2-(propan-2-yl)-2,3-dihydropyridazin-3-one	6-[4-(7-methyl-7H-purin-6-yl)piperazin-1-yl]-2-(propan-2-yl)-2,3-dihydropyridazin-3-one	分子量：354.4 密度：N/A 沸点：N/A 熔点：N/A	2770583-47-4	C₁₇H₂₂N₈O
2-ethyl-6-[4-(7-methyl-7H-purin-6-yl)piperazin-1-yl]-2,3-dihydropyridazin-3-one	2-ethyl-6-[4-(7-methyl-7H-purin-6-yl)piperazin-1-yl]-2,3-dihydropyridazin-3-one	分子量：340.38 密度：N/A 沸点：N/A 熔点：N/A	2770600-82-1	C₁₆H₂₀N₈O
1-[(1,3,4-Oxadiazol-2-yl)methyl]-4-[3-(trifluoromethyl)phenyl]piperazine	1-[(1,3,4-Oxadiazol-2-yl)methyl]-4-[3-(trifluoromethyl)phenyl]piperazine	分子量：312.29 密度：N/A 沸点：N/A 熔点：N/A	2324574-46-9	C₁₄H₁₅F₃N₄O
3-({1-[(5-Cyclopropyl-1,3,4-oxadiazol-2-yl)methyl]piperidin-4-yl}oxy)-2,5-dimethylpyrazine	3-({1-[(5-Cyclopropyl-1,3,4-oxadiazol-2-yl)methyl]piperidin-4-yl}oxy)-2,5-dimethylpyrazine	分子量：329.4 密度：N/A 沸点：N/A 熔点：N/A	2770583-56-5	C₁₇H₂₃N₅O₂
6-(4-{5-Methylpyrazolo[1,5-a]pyrimidin-7-yl}piperazin-1-yl)-2-(propan-2-yl)-2,3-dihydropyridazin-3-one	6-(4-{5-Methylpyrazolo[1,5-a]pyrimidin-7-yl}piperazin-1-yl)-2-(propan-2-yl)-2,3-dihydropyridazin-3-one	分子量：353.4 密度：N/A 沸点：N/A 熔点：N/A	2770625-45-9	C₁₈H₂₃N₇O