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
6-Tert-butyl-2-(1-{thieno[3,2-d]pyrimidin-4-yl}piperidin-4-yl)-2,3-dihydropyridazin-3-one	6-Tert-butyl-2-(1-{thieno[3,2-d]pyrimidin-4-yl}piperidin-4-yl)-2,3-dihydropyridazin-3-one	分子量：369.5 密度：N/A 沸点：N/A 熔点：N/A	2320178-26-3	C₁₉H₂₃N₅OS
1-[4-(3-{[(5-Bromopyrimidin-2-yl)oxy]methyl}piperidine-1-carbonyl)piperidin-1-yl]ethan-1-one	1-[4-(3-{[(5-Bromopyrimidin-2-yl)oxy]methyl}piperidine-1-carbonyl)piperidin-1-yl]ethan-1-one	分子量：425.3 密度：N/A 沸点：N/A 熔点：N/A	2379977-80-5	C₁₈H₂₅BrN₄O₃
4-{[1-(1-Methanesulfonylpiperidine-4-carbonyl)piperidin-4-yl]methoxy}-2-methylpyridine	4-{[1-(1-Methanesulfonylpiperidine-4-carbonyl)piperidin-4-yl]methoxy}-2-methylpyridine	分子量：395.5 密度：N/A 沸点：N/A 熔点：N/A	2379995-68-1	C₁₉H₂₉N₃O₄S
N-(2,6-difluorophenyl)-3-[(1H-1,2,3-triazol-1-yl)methyl]azetidine-1-carboxamide	N-(2,6-difluorophenyl)-3-[(1H-1,2,3-triazol-1-yl)methyl]azetidine-1-carboxamide	分子量：293.27 密度：N/A 沸点：N/A 熔点：N/A	2320178-64-9	C₁₃H₁₃F₂N₅O
N-(2,6-Difluorophenyl)-3-(1,2,5-thiadiazol-3-yloxy)pyrrolidine-1-carboxamide	N-(2,6-Difluorophenyl)-3-(1,2,5-thiadiazol-3-yloxy)pyrrolidine-1-carboxamide	分子量：326.32 密度：N/A 沸点：N/A 熔点：N/A	2320505-17-5	C₁₃H₁₂F₂N₄O₂S
2-({1-[(1-methyl-1H-pyrazol-4-yl)sulfonyl]piperidin-3-yl}methoxy)pyrimidine	2-({1-[(1-methyl-1H-pyrazol-4-yl)sulfonyl]piperidin-3-yl}methoxy)pyrimidine	分子量：337.40 密度：N/A 沸点：N/A 熔点：N/A	2379972-17-3	C₁₄H₁₉N₅O₃S
4-{[1-(3,4-dihydro-2H-1-benzopyran-2-carbonyl)piperidin-4-yl]methoxy}-6-methylpyrimidine	4-{[1-(3,4-dihydro-2H-1-benzopyran-2-carbonyl)piperidin-4-yl]methoxy}-6-methylpyrimidine	分子量：367.4 密度：N/A 沸点：N/A 熔点：N/A	2380032-98-2	C₂₁H₂₅N₃O₃
2-(2-Chlorophenyl)-1-(4-{[(2-methylpyridin-4-yl)oxy]methyl}piperidin-1-yl)ethan-1-one	2-(2-Chlorophenyl)-1-(4-{[(2-methylpyridin-4-yl)oxy]methyl}piperidin-1-yl)ethan-1-one	分子量：358.9 密度：N/A 沸点：N/A 熔点：N/A	2380043-96-7	C₂₀H₂₃ClN₂O₂
2-Methyl-4-[(1-{[1,2,4]triazolo[4,3-b]pyridazin-6-yl}piperidin-4-yl)methoxy]pyridine	2-Methyl-4-[(1-{[1,2,4]triazolo[4,3-b]pyridazin-6-yl}piperidin-4-yl)methoxy]pyridine	分子量：324.4 密度：N/A 沸点：N/A 熔点：N/A	2379972-57-1	C₁₇H₂₀N₆O
N-(3-phenylpropyl)-3-(1H-1,2,3-triazol-1-yl)-8-azabicyclo[3.2.1]octane-8-carboxamide	N-(3-phenylpropyl)-3-(1H-1,2,3-triazol-1-yl)-8-azabicyclo[3.2.1]octane-8-carboxamide	分子量：339.4 密度：N/A 沸点：N/A 熔点：N/A	2310096-61-6	C₁₉H₂₅N₅O
2-({1-[2-(4-chloro-3-methylphenoxy)acetyl]piperidin-4-yl}methyl)-2H,3H,5H,6H,7H-cyclopenta[c]pyridazin-3-one	2-({1-[2-(4-chloro-3-methylphenoxy)acetyl]piperidin-4-yl}methyl)-2H,3H,5H,6H,7H-cyclopenta[c]pyridazin-3-one	分子量：415.9 密度：N/A 沸点：N/A 熔点：N/A	2320505-45-9	C₂₂H₂₆ClN₃O₃
2-({1-[2-(2,5-Dimethylphenoxy)acetyl]piperidin-4-yl}methyl)-2,3,5,6,7,8-hexahydrocinnolin-3-one	2-({1-[2-(2,5-Dimethylphenoxy)acetyl]piperidin-4-yl}methyl)-2,3,5,6,7,8-hexahydrocinnolin-3-one	分子量：409.5 密度：N/A 沸点：N/A 熔点：N/A	2320178-81-0	C₂₄H₃₁N₃O₃
2-(2-Chloro-6-fluorophenyl)-1-{3-[(pyrimidin-2-yloxy)methyl]piperidin-1-yl}ethan-1-one	2-(2-Chloro-6-fluorophenyl)-1-{3-[(pyrimidin-2-yloxy)methyl]piperidin-1-yl}ethan-1-one	分子量：363.8 密度：N/A 沸点：N/A 熔点：N/A	2379977-49-6	C₁₈H₁₉ClFN₃O₂
N-[(4-Chlorophenyl)methyl]-3-(triazol-1-ylmethyl)azetidine-1-carboxamide	N-[(4-Chlorophenyl)methyl]-3-(triazol-1-ylmethyl)azetidine-1-carboxamide	分子量：305.76 密度：N/A 沸点：N/A 熔点：N/A	2320505-71-1	C₁₄H₁₆ClN₅O
4-({3-Fluoro-8-azabicyclo[3.2.1]octan-8-yl}sulfonyl)-2,1,3-benzothiadiazole	4-({3-Fluoro-8-azabicyclo[3.2.1]octan-8-yl}sulfonyl)-2,1,3-benzothiadiazole	分子量：327.4 密度：N/A 沸点：N/A 熔点：N/A	2320851-66-7	C₁₃H₁₄FN₃O₂S₂
2-(4-{[(2-methylpyridin-4-yl)oxy]methyl}piperidin-1-yl)-4H-pyrido[1,2-a]pyrimidin-4-one	2-(4-{[(2-methylpyridin-4-yl)oxy]methyl}piperidin-1-yl)-4H-pyrido[1,2-a]pyrimidin-4-one	分子量：350.4 密度：N/A 沸点：N/A 熔点：N/A	2379971-72-7	C₂₀H₂₂N₄O₂
1-{3-[(Pyrimidin-2-yloxy)methyl]piperidin-1-yl}-2-[3-(trifluoromethyl)phenyl]ethan-1-one	1-{3-[(Pyrimidin-2-yloxy)methyl]piperidin-1-yl}-2-[3-(trifluoromethyl)phenyl]ethan-1-one	分子量：379.4 密度：N/A 沸点：N/A 熔点：N/A	2379975-33-2	C₁₉H₂₀F₃N₃O₂
2-({1-[2-(4-Bromophenyl)acetyl]piperidin-4-yl}methyl)-2,3,5,6,7,8-hexahydrocinnolin-3-one	2-({1-[2-(4-Bromophenyl)acetyl]piperidin-4-yl}methyl)-2,3,5,6,7,8-hexahydrocinnolin-3-one	分子量：444.4 密度：N/A 沸点：N/A 熔点：N/A	2380061-08-3	C₂₂H₂₆BrN₃O₂
6-Tert-butyl-2-[1-[2-(2,4-dichlorophenoxy)acetyl]piperidin-4-yl]pyridazin-3-one	6-Tert-butyl-2-[1-[2-(2,4-dichlorophenoxy)acetyl]piperidin-4-yl]pyridazin-3-one	分子量：438.3 密度：N/A 沸点：N/A 熔点：N/A	2309733-65-9	C₂₁H₂₅Cl₂N₃O₃
4-{[1-(3,4-dihydro-2H-1-benzopyran-3-carbonyl)piperidin-4-yl]methoxy}-5,6-dimethylpyrimidine	4-{[1-(3,4-dihydro-2H-1-benzopyran-3-carbonyl)piperidin-4-yl]methoxy}-5,6-dimethylpyrimidine	分子量：381.5 密度：N/A 沸点：N/A 熔点：N/A	2379994-58-6	C₂₂H₂₇N₃O₃
2-Methyl-4-[(1-{pyrido[2,3-d]pyrimidin-4-yl}piperidin-4-yl)methoxy]pyridine	2-Methyl-4-[(1-{pyrido[2,3-d]pyrimidin-4-yl}piperidin-4-yl)methoxy]pyridine	分子量：335.4 密度：N/A 沸点：N/A 熔点：N/A	2379987-72-9	C₁₉H₂₁N₅O
2-Methyl-4-[(1-{pyrido[3,4-d]pyrimidin-4-yl}piperidin-4-yl)methoxy]pyridine	2-Methyl-4-[(1-{pyrido[3,4-d]pyrimidin-4-yl}piperidin-4-yl)methoxy]pyridine	分子量：335.4 密度：N/A 沸点：N/A 熔点：N/A	2380056-62-0	C₁₉H₂₁N₅O
N-(3-phenylpropyl)-3-[(1H-1,2,3-triazol-1-yl)methyl]azetidine-1-carboxamide	N-(3-phenylpropyl)-3-[(1H-1,2,3-triazol-1-yl)methyl]azetidine-1-carboxamide	分子量：299.37 密度：N/A 沸点：N/A 熔点：N/A	2310153-89-8	C₁₆H₂₁N₅O
1-(4-{[(2-Methylpyridin-4-yl)oxy]methyl}piperidin-1-yl)-2-[4-(trifluoromethyl)phenyl]ethan-1-one	1-(4-{[(2-Methylpyridin-4-yl)oxy]methyl}piperidin-1-yl)-2-[4-(trifluoromethyl)phenyl]ethan-1-one	分子量：392.4 密度：N/A 沸点：N/A 熔点：N/A	2380034-78-4	C₂₁H₂₃F₃N₂O₂
1-{3-Cyclobutyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-4-(pyrimidin-2-yl)-1,4-diazepane	1-{3-Cyclobutyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-4-(pyrimidin-2-yl)-1,4-diazepane	分子量：350.4 密度：N/A 沸点：N/A 熔点：N/A	2320416-15-5	C₁₈H₂₂N₈
4-amino-N3-benzyl-N5-methyl-1,2-thiazole-3,5-dicarboxamide	4-amino-N3-benzyl-N5-methyl-1,2-thiazole-3,5-dicarboxamide	分子量：290.34 密度：N/A 沸点：N/A 熔点：N/A	2310154-17-5	C₁₃H₁₄N₄O₂S
2-{[1-(1-Methanesulfonylpiperidine-4-carbonyl)piperidin-3-yl]methoxy}pyrimidine	2-{[1-(1-Methanesulfonylpiperidine-4-carbonyl)piperidin-3-yl]methoxy}pyrimidine	分子量：382.5 密度：N/A 沸点：N/A 熔点：N/A	2380070-23-3	C₁₇H₂₆N₄O₄S
1-[3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carbonyl]-2,3-dihydro-1H-indole	1-[3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carbonyl]-2,3-dihydro-1H-indole	分子量：277.27 密度：N/A 沸点：N/A 熔点：N/A	2325048-01-7	C₁₄H₁₃F₂N₃O
2-{[1-(1-Methanesulfonylpiperidine-4-carbonyl)piperidin-4-yl]methoxy}-6-(trifluoromethyl)pyridine	2-{[1-(1-Methanesulfonylpiperidine-4-carbonyl)piperidin-4-yl]methoxy}-6-(trifluoromethyl)pyridine	分子量：449.5 密度：N/A 沸点：N/A 熔点：N/A	2320416-59-7	C₁₉H₂₆F₃N₃O₄S
2-Methyl-4-[(1-{[1,3]thiazolo[4,5-c]pyridin-2-yl}piperidin-4-yl)methoxy]pyridine	2-Methyl-4-[(1-{[1,3]thiazolo[4,5-c]pyridin-2-yl}piperidin-4-yl)methoxy]pyridine	分子量：340.4 密度：N/A 沸点：N/A 熔点：N/A	2379971-48-7	C₁₈H₂₀N₄OS
N-(4-{[4-({[6-(trifluoromethyl)pyridin-2-yl]oxy}methyl)piperidin-1-yl]methyl}phenyl)acetamide	N-(4-{[4-({[6-(trifluoromethyl)pyridin-2-yl]oxy}methyl)piperidin-1-yl]methyl}phenyl)acetamide	分子量：407.4 密度：N/A 沸点：N/A 熔点：N/A	2379971-52-3	C₂₁H₂₄F₃N₃O₂
2-(2-Bromophenyl)-1-(4-{[(2-methylpyridin-4-yl)oxy]methyl}piperidin-1-yl)ethan-1-one	2-(2-Bromophenyl)-1-(4-{[(2-methylpyridin-4-yl)oxy]methyl}piperidin-1-yl)ethan-1-one	分子量：403.3 密度：N/A 沸点：N/A 熔点：N/A	2379949-57-0	C₂₀H₂₃BrN₂O₂
1-{3-Cyclobutyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-4-(6-methylpyrimidin-4-yl)-1,4-diazepane	1-{3-Cyclobutyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-4-(6-methylpyrimidin-4-yl)-1,4-diazepane	分子量：364.4 密度：N/A 沸点：N/A 熔点：N/A	2310205-28-6	C₁₉H₂₄N₈
1-{3-Cyclobutyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-4-(4-methylpyrimidin-2-yl)-1,4-diazepane	1-{3-Cyclobutyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-4-(4-methylpyrimidin-2-yl)-1,4-diazepane	分子量：364.4 密度：N/A 沸点：N/A 熔点：N/A	2320416-94-0	C₁₉H₂₄N₈
2-Methyl-4-[(1-{thieno[3,2-d]pyrimidin-4-yl}piperidin-4-yl)methoxy]pyridine	2-Methyl-4-[(1-{thieno[3,2-d]pyrimidin-4-yl}piperidin-4-yl)methoxy]pyridine	分子量：340.4 密度：N/A 沸点：N/A 熔点：N/A	2379976-29-9	C₁₈H₂₀N₄OS
2-(2-Bromo-4-fluorophenyl)-1-{3-[(pyrimidin-2-yloxy)methyl]piperidin-1-yl}ethan-1-one	2-(2-Bromo-4-fluorophenyl)-1-{3-[(pyrimidin-2-yloxy)methyl]piperidin-1-yl}ethan-1-one	分子量：408.3 密度：N/A 沸点：N/A 熔点：N/A	2379983-93-2	C₁₈H₁₉BrFN₃O₂
3-{[1-(1-Methanesulfonylpiperidine-4-carbonyl)piperidin-4-yl]methoxy}-6-methylpyridazine	3-{[1-(1-Methanesulfonylpiperidine-4-carbonyl)piperidin-4-yl]methoxy}-6-methylpyridazine	分子量：396.5 密度：N/A 沸点：N/A 熔点：N/A	2320851-90-7	C₁₈H₂₈N₄O₄S
1-(3-{[(5-Bromopyrimidin-2-yl)oxy]methyl}piperidin-1-yl)-2-(4-fluorophenyl)ethan-1-one	1-(3-{[(5-Bromopyrimidin-2-yl)oxy]methyl}piperidin-1-yl)-2-(4-fluorophenyl)ethan-1-one	分子量：408.3 密度：N/A 沸点：N/A 熔点：N/A	2380043-67-2	C₁₈H₁₉BrFN₃O₂
6-Tert-butyl-2-[1-(2,3-dihydro-1-benzofuran-5-sulfonyl)piperidin-4-yl]-2,3-dihydropyridazin-3-one	6-Tert-butyl-2-[1-(2,3-dihydro-1-benzofuran-5-sulfonyl)piperidin-4-yl]-2,3-dihydropyridazin-3-one	分子量：417.5 密度：N/A 沸点：N/A 熔点：N/A	2310098-15-6	C₂₁H₂₇N₃O₄S
1-{3-Cyclobutyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-4-(5-fluoropyrimidin-4-yl)-1,4-diazepane	1-{3-Cyclobutyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-4-(5-fluoropyrimidin-4-yl)-1,4-diazepane	分子量：368.4 密度：N/A 沸点：N/A 熔点：N/A	2310205-52-6	C₁₈H₂₁FN₈
1-{[1,2,4]Triazolo[4,3-b]pyridazin-6-yl}-4-[6-(trifluoromethyl)pyridine-3-carbonyl]-1,4-diazepane	1-{[1,2,4]Triazolo[4,3-b]pyridazin-6-yl}-4-[6-(trifluoromethyl)pyridine-3-carbonyl]-1,4-diazepane	分子量：391.4 密度：N/A 沸点：N/A 熔点：N/A	2380040-29-7	C₁₇H₁₆F₃N₇O
3-{[1-(Pyrimidin-2-yl)pyrrolidin-2-yl]methyl}-1-[4-(trifluoromethyl)phenyl]urea	3-{[1-(Pyrimidin-2-yl)pyrrolidin-2-yl]methyl}-1-[4-(trifluoromethyl)phenyl]urea	分子量：365.35 密度：N/A 沸点：N/A 熔点：N/A	2380040-33-3	C₁₇H₁₈F₃N₅O
N-(3-Methoxyphenyl)-4-[(2-methylpyridin-4-yl)oxymethyl]piperidine-1-carboxamide	N-(3-Methoxyphenyl)-4-[(2-methylpyridin-4-yl)oxymethyl]piperidine-1-carboxamide	分子量：355.4 密度：N/A 沸点：N/A 熔点：N/A	2380040-44-6	C₂₀H₂₅N₃O₃
2-(4-{3-Cyclobutyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-1,4-diazepan-1-yl)pyridine-3-carbonitrile	2-(4-{3-Cyclobutyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-1,4-diazepan-1-yl)pyridine-3-carbonitrile	分子量：374.4 密度：N/A 沸点：N/A 熔点：N/A	2379973-00-7	C₂₀H₂₂N₈
2-(4-{3-Cyclobutyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-1,4-diazepan-1-yl)pyridine-4-carbonitrile	2-(4-{3-Cyclobutyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-1,4-diazepan-1-yl)pyridine-4-carbonitrile	分子量：374.4 密度：N/A 沸点：N/A 熔点：N/A	2379977-41-8	C₂₀H₂₂N₈
6-(4-{3-Cyclobutyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-1,4-diazepan-1-yl)pyridine-2-carbonitrile	6-(4-{3-Cyclobutyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-1,4-diazepan-1-yl)pyridine-2-carbonitrile	分子量：374.4 密度：N/A 沸点：N/A 熔点：N/A	2379974-86-2	C₂₀H₂₂N₈
2-Methyl-4-({1-[3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]piperidin-4-yl}methoxy)pyridine	2-Methyl-4-({1-[3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]piperidin-4-yl}methoxy)pyridine	分子量：392.4 密度：N/A 沸点：N/A 熔点：N/A	2379983-81-8	C₁₈H₁₉F₃N₆O
1-{3-Cyclobutyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-4-[(pyridin-3-yl)methyl]-1,4-diazepane	1-{3-Cyclobutyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-4-[(pyridin-3-yl)methyl]-1,4-diazepane	分子量：363.5 密度：N/A 沸点：N/A 熔点：N/A	2380068-09-5	C₂₀H₂₅N₇
1-{3-Cyclobutyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-4-[(pyridin-2-yl)methyl]-1,4-diazepane	1-{3-Cyclobutyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-4-[(pyridin-2-yl)methyl]-1,4-diazepane	分子量：363.5 密度：N/A 沸点：N/A 熔点：N/A	2310205-76-4	C₂₀H₂₅N₇
1-{3-Cyclobutyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-4-[(pyridin-4-yl)methyl]-1,4-diazepane	1-{3-Cyclobutyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-4-[(pyridin-4-yl)methyl]-1,4-diazepane	分子量：363.5 密度：N/A 沸点：N/A 熔点：N/A	2379987-11-6	C₂₀H₂₅N₇