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
3-cyclopropyl-N-(4-methylpyridin-3-yl)-[1,2,4]triazolo[4,3-b]pyridazine-6-carboxamide	3-cyclopropyl-N-(4-methylpyridin-3-yl)-[1,2,4]triazolo[4,3-b]pyridazine-6-carboxamide	分子量：294.31 密度：N/A 沸点：N/A 熔点：N/A	2549000-12-4	C₁₅H₁₄N₆O
2-(4-chlorophenyl)-1-{3-[(4-methyl-1H-pyrazol-1-yl)methyl]azetidin-1-yl}ethan-1-one	2-(4-chlorophenyl)-1-{3-[(4-methyl-1H-pyrazol-1-yl)methyl]azetidin-1-yl}ethan-1-one	分子量：303.78 密度：N/A 沸点：N/A 熔点：N/A	2548977-93-9	C₁₆H₁₈ClN₃O
1-{[1-(3-fluoro-4-methoxybenzoyl)azetidin-3-yl]methyl}-4-methyl-1H-pyrazole	1-{[1-(3-fluoro-4-methoxybenzoyl)azetidin-3-yl]methyl}-4-methyl-1H-pyrazole	分子量：303.33 密度：N/A 沸点：N/A 熔点：N/A	2549045-78-3	C₁₆H₁₈FN₃O₂
2-(2,4-difluorophenyl)-1-{3-[(4-methyl-1H-pyrazol-1-yl)methyl]azetidin-1-yl}ethan-1-one	2-(2,4-difluorophenyl)-1-{3-[(4-methyl-1H-pyrazol-1-yl)methyl]azetidin-1-yl}ethan-1-one	分子量：305.32 密度：N/A 沸点：N/A 熔点：N/A	2549054-19-3	C₁₆H₁₇F₂N₃O
2-[1-(3-Chlorobenzoyl)-octahydropyrrolo[3,4-b]pyrrol-5-yl]pyridine	2-[1-(3-Chlorobenzoyl)-octahydropyrrolo[3,4-b]pyrrol-5-yl]pyridine	分子量：327.8 密度：N/A 沸点：N/A 熔点：N/A	2549007-05-6	C₁₈H₁₈ClN₃O
5-Fluoro-2-{[1-(3,3,3-trifluoropropanesulfonyl)pyrrolidin-3-yl]methoxy}pyridine	5-Fluoro-2-{[1-(3,3,3-trifluoropropanesulfonyl)pyrrolidin-3-yl]methoxy}pyridine	分子量：356.34 密度：N/A 沸点：N/A 熔点：N/A	2548981-31-1	C₁₃H₁₆F₄N₂O₃S
5-Methoxy-2-({1-[2-(trifluoromethyl)pyridine-4-carbonyl]piperidin-4-yl}oxy)pyrimidine	5-Methoxy-2-({1-[2-(trifluoromethyl)pyridine-4-carbonyl]piperidin-4-yl}oxy)pyrimidine	分子量：382.34 密度：N/A 沸点：N/A 熔点：N/A	2549006-94-0	C₁₇H₁₇F₃N₄O₃
N-[(4-hydroxy-4,5,6,7-tetrahydro-1-benzothiophen-4-yl)methyl]-3-[4-(trifluoromethyl)phenyl]propanamide	N-[(4-hydroxy-4,5,6,7-tetrahydro-1-benzothiophen-4-yl)methyl]-3-[4-(trifluoromethyl)phenyl]propanamide	分子量：383.4 密度：N/A 沸点：N/A 熔点：N/A	2549007-26-1	C₁₉H₂₀F₃NO₂S
2-(2-Methoxyphenyl)-1-[5-(pyridin-2-yl)-octahydropyrrolo[3,4-b]pyrrol-1-yl]ethan-1-one	2-(2-Methoxyphenyl)-1-[5-(pyridin-2-yl)-octahydropyrrolo[3,4-b]pyrrol-1-yl]ethan-1-one	分子量：337.4 密度：N/A 沸点：N/A 熔点：N/A	2548995-35-1	C₂₀H₂₃N₃O₂
1-{[1-(2,3-dihydro-1,4-benzodioxine-5-carbonyl)azetidin-3-yl]methyl}-4-methyl-1H-pyrazole	1-{[1-(2,3-dihydro-1,4-benzodioxine-5-carbonyl)azetidin-3-yl]methyl}-4-methyl-1H-pyrazole	分子量：313.35 密度：N/A 沸点：N/A 熔点：N/A	2548985-59-5	C₁₇H₁₉N₃O₃
1-{4-[(5-methoxypyrimidin-2-yl)oxy]piperidin-1-yl}-2-(1H-1,2,4-triazol-1-yl)ethan-1-one	1-{4-[(5-methoxypyrimidin-2-yl)oxy]piperidin-1-yl}-2-(1H-1,2,4-triazol-1-yl)ethan-1-one	分子量：318.33 密度：N/A 沸点：N/A 熔点：N/A	2549045-85-2	C₁₄H₁₈N₆O₃
3-[2-Oxo-2-(4-{[5-(pyridin-4-yl)pyrimidin-2-yl]oxy}piperidin-1-yl)ethyl]-1,3-oxazolidin-2-one	3-[2-Oxo-2-(4-{[5-(pyridin-4-yl)pyrimidin-2-yl]oxy}piperidin-1-yl)ethyl]-1,3-oxazolidin-2-one	分子量：383.4 密度：N/A 沸点：N/A 熔点：N/A	2549056-78-0	C₁₉H₂₁N₅O₄
N-[(4-hydroxy-4,5,6,7-tetrahydro-1-benzothiophen-4-yl)methyl]-1-methanesulfonylpiperidine-4-carboxamide	N-[(4-hydroxy-4,5,6,7-tetrahydro-1-benzothiophen-4-yl)methyl]-1-methanesulfonylpiperidine-4-carboxamide	分子量：372.5 密度：N/A 沸点：N/A 熔点：N/A	2548988-90-3	C₁₆H₂₄N₂O₄S₂
2-(2-bromo-4-fluorophenyl)-1-{3-[(4-methyl-1H-pyrazol-1-yl)methyl]azetidin-1-yl}ethan-1-one	2-(2-bromo-4-fluorophenyl)-1-{3-[(4-methyl-1H-pyrazol-1-yl)methyl]azetidin-1-yl}ethan-1-one	分子量：366.23 密度：N/A 沸点：N/A 熔点：N/A	2548989-31-5	C₁₆H₁₇BrFN₃O
1-[5-(Pyridin-2-yl)-octahydropyrrolo[3,4-b]pyrrol-1-yl]-2-[3-(trifluoromethyl)phenyl]ethan-1-one	1-[5-(Pyridin-2-yl)-octahydropyrrolo[3,4-b]pyrrol-1-yl]-2-[3-(trifluoromethyl)phenyl]ethan-1-one	分子量：375.4 密度：N/A 沸点：N/A 熔点：N/A	2549054-52-4	C₂₀H₂₀F₃N₃O
N-(2-chlorophenyl)-5-(pyridin-2-yl)-octahydropyrrolo[3,4-b]pyrrole-1-carboxamide	N-(2-chlorophenyl)-5-(pyridin-2-yl)-octahydropyrrolo[3,4-b]pyrrole-1-carboxamide	分子量：342.8 密度：N/A 沸点：N/A 熔点：N/A	2549062-64-6	C₁₈H₁₉ClN₄O
N-(4-fluorophenyl)-3-[(4-methyl-1H-pyrazol-1-yl)methyl]azetidine-1-carboxamide	N-(4-fluorophenyl)-3-[(4-methyl-1H-pyrazol-1-yl)methyl]azetidine-1-carboxamide	分子量：288.32 密度：N/A 沸点：N/A 熔点：N/A	2549010-58-2	C₁₅H₁₇FN₄O
1,3,5-trimethyl-4-({3-[(4-methyl-1H-pyrazol-1-yl)methyl]azetidin-1-yl}sulfonyl)-1H-pyrazole	1,3,5-trimethyl-4-({3-[(4-methyl-1H-pyrazol-1-yl)methyl]azetidin-1-yl}sulfonyl)-1H-pyrazole	分子量：323.42 密度：N/A 沸点：N/A 熔点：N/A	2549021-87-4	C₁₄H₂₁N₅O₂S
4-methyl-1-({1-[4-(propan-2-yloxy)benzoyl]azetidin-3-yl}methyl)-1H-pyrazole	4-methyl-1-({1-[4-(propan-2-yloxy)benzoyl]azetidin-3-yl}methyl)-1H-pyrazole	分子量：313.4 密度：N/A 沸点：N/A 熔点：N/A	2549010-85-5	C₁₈H₂₃N₃O₂
7-Methoxy-3-{[1-(oxane-2-carbonyl)piperidin-4-yl]methyl}-3,4-dihydroquinazolin-4-one	7-Methoxy-3-{[1-(oxane-2-carbonyl)piperidin-4-yl]methyl}-3,4-dihydroquinazolin-4-one	分子量：385.5 密度：N/A 沸点：N/A 熔点：N/A	2549051-30-9	C₂₁H₂₇N₃O₄
1-(3,4-dimethylphenyl)-4-{3-[(4-methyl-1H-pyrazol-1-yl)methyl]azetidine-1-carbonyl}pyrrolidin-2-one	1-(3,4-dimethylphenyl)-4-{3-[(4-methyl-1H-pyrazol-1-yl)methyl]azetidine-1-carbonyl}pyrrolidin-2-one	分子量：366.5 密度：N/A 沸点：N/A 熔点：N/A	2549037-15-0	C₂₁H₂₆N₄O₂
2-(2,4-dichlorophenoxy)-1-{3-[(4-methyl-1H-pyrazol-1-yl)methyl]azetidin-1-yl}ethan-1-one	2-(2,4-dichlorophenoxy)-1-{3-[(4-methyl-1H-pyrazol-1-yl)methyl]azetidin-1-yl}ethan-1-one	分子量：354.2 密度：N/A 沸点：N/A 熔点：N/A	2549019-65-8	C₁₆H₁₇Cl₂N₃O₂
1-{[1-(2-bromo-5-methoxybenzoyl)azetidin-3-yl]methyl}-4-methyl-1H-pyrazole	1-{[1-(2-bromo-5-methoxybenzoyl)azetidin-3-yl]methyl}-4-methyl-1H-pyrazole	分子量：364.24 密度：N/A 沸点：N/A 熔点：N/A	2549019-89-6	C₁₆H₁₈BrN₃O₂
7-Methoxy-3-{[1-(4,4,4-trifluorobutanoyl)piperidin-4-yl]methyl}-3,4-dihydroquinazolin-4-one	7-Methoxy-3-{[1-(4,4,4-trifluorobutanoyl)piperidin-4-yl]methyl}-3,4-dihydroquinazolin-4-one	分子量：397.4 密度：N/A 沸点：N/A 熔点：N/A	2548999-76-2	C₁₉H₂₂F₃N₃O₃
N-[(4-fluorophenyl)methyl]-5-(pyridin-2-yl)-octahydropyrrolo[3,4-b]pyrrole-1-carboxamide	N-[(4-fluorophenyl)methyl]-5-(pyridin-2-yl)-octahydropyrrolo[3,4-b]pyrrole-1-carboxamide	分子量：340.4 密度：N/A 沸点：N/A 熔点：N/A	2549047-83-6	C₁₉H₂₁FN₄O
3-cyclopropyl-N-[2-(trifluoromethyl)phenyl]-[1,2,4]triazolo[4,3-b]pyridazine-6-carboxamide	3-cyclopropyl-N-[2-(trifluoromethyl)phenyl]-[1,2,4]triazolo[4,3-b]pyridazine-6-carboxamide	分子量：347.29 密度：N/A 沸点：N/A 熔点：N/A	2549039-47-4	C₁₆H₁₂F₃N₅O
1-(4-methoxyphenyl)-4-{3-[(4-methyl-1H-pyrazol-1-yl)methyl]azetidine-1-carbonyl}pyrrolidin-2-one	1-(4-methoxyphenyl)-4-{3-[(4-methyl-1H-pyrazol-1-yl)methyl]azetidine-1-carbonyl}pyrrolidin-2-one	分子量：368.4 密度：N/A 沸点：N/A 熔点：N/A	2549029-07-2	C₂₀H₂₄N₄O₃
3-cyclopropyl-N-(3,4-difluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazine-6-carboxamide	3-cyclopropyl-N-(3,4-difluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazine-6-carboxamide	分子量：315.28 密度：N/A 沸点：N/A 熔点：N/A	2548998-80-5	C₁₅H₁₁F₂N₅O
N-[(4-chlorophenyl)methyl]-4-(1,2,5-thiadiazol-3-yl)piperazine-1-carboxamide	N-[(4-chlorophenyl)methyl]-4-(1,2,5-thiadiazol-3-yl)piperazine-1-carboxamide	分子量：337.8 密度：N/A 沸点：N/A 熔点：N/A	2548978-45-4	C₁₄H₁₆ClN₅OS
N-(4-bromo-2-methylphenyl)-3-cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazine-6-carboxamide	N-(4-bromo-2-methylphenyl)-3-cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazine-6-carboxamide	分子量：372.22 密度：N/A 沸点：N/A 熔点：N/A	2549032-37-1	C₁₆H₁₄BrN₅O
N-(2-methyl-1,3-benzothiazol-5-yl)-5H,7H,8H-pyrano[4,3-c]pyridazine-3-carboxamide	N-(2-methyl-1,3-benzothiazol-5-yl)-5H,7H,8H-pyrano[4,3-c]pyridazine-3-carboxamide	分子量：326.4 密度：N/A 沸点：N/A 熔点：N/A	2549025-22-9	C₁₆H₁₄N₄O₂S
2-({1-[1-(4-Fluorophenyl)cyclopropanecarbonyl]piperidin-4-yl}oxy)-5-methoxypyrimidine	2-({1-[1-(4-Fluorophenyl)cyclopropanecarbonyl]piperidin-4-yl}oxy)-5-methoxypyrimidine	分子量：371.4 密度：N/A 沸点：N/A 熔点：N/A	2549064-06-2	C₂₀H₂₂FN₃O₃
3-cyclopropyl-N-[2-(4-fluorophenyl)ethyl]-[1,2,4]triazolo[4,3-b]pyridazine-6-carboxamide	3-cyclopropyl-N-[2-(4-fluorophenyl)ethyl]-[1,2,4]triazolo[4,3-b]pyridazine-6-carboxamide	分子量：325.34 密度：N/A 沸点：N/A 熔点：N/A	2549034-12-8	C₁₇H₁₆FN₅O
2-{[1-(2,3-Dihydro-1,4-benzodioxine-5-carbonyl)piperidin-4-yl]oxy}-5-methoxypyrimidine	2-{[1-(2,3-Dihydro-1,4-benzodioxine-5-carbonyl)piperidin-4-yl]oxy}-5-methoxypyrimidine	分子量：371.4 密度：N/A 沸点：N/A 熔点：N/A	2549028-45-5	C₁₉H₂₁N₃O₅
4-({1-[(5-Methylthiophen-2-yl)sulfonyl]azetidin-3-yl}oxy)pyridine-2-carboxamide	4-({1-[(5-Methylthiophen-2-yl)sulfonyl]azetidin-3-yl}oxy)pyridine-2-carboxamide	分子量：353.4 密度：N/A 沸点：N/A 熔点：N/A	2548978-65-8	C₁₄H₁₅N₃O₄S₂
3-cyclopropyl-N-(4-methoxy-2-methylphenyl)-[1,2,4]triazolo[4,3-b]pyridazine-6-carboxamide	3-cyclopropyl-N-(4-methoxy-2-methylphenyl)-[1,2,4]triazolo[4,3-b]pyridazine-6-carboxamide	分子量：323.35 密度：N/A 沸点：N/A 熔点：N/A	2549052-41-5	C₁₇H₁₇N₅O₂
4-(4-{4-[(5-Methoxypyrimidin-2-yl)oxy]piperidine-1-carbonyl}phenyl)morpholine	4-(4-{4-[(5-Methoxypyrimidin-2-yl)oxy]piperidine-1-carbonyl}phenyl)morpholine	分子量：398.5 密度：N/A 沸点：N/A 熔点：N/A	2548978-89-6	C₂₁H₂₆N₄O₄
4-ethoxy-3-fluoro-N-[(4-hydroxy-4,5,6,7-tetrahydro-1-benzothiophen-4-yl)methyl]benzene-1-sulfonamide	4-ethoxy-3-fluoro-N-[(4-hydroxy-4,5,6,7-tetrahydro-1-benzothiophen-4-yl)methyl]benzene-1-sulfonamide	分子量：385.5 密度：N/A 沸点：N/A 熔点：N/A	2549028-65-9	C₁₇H₂₀FNO₄S₂
4-({1-[(1,3,5-trimethyl-1H-pyrazol-4-yl)sulfonyl]azetidin-3-yl}oxy)pyridine-2-carboxamide	4-({1-[(1,3,5-trimethyl-1H-pyrazol-4-yl)sulfonyl]azetidin-3-yl}oxy)pyridine-2-carboxamide	分子量：365.4 密度：N/A 沸点：N/A 熔点：N/A	2549006-21-3	C₁₅H₁₉N₅O₄S
1-{[1-(3-methoxybenzenesulfonyl)azetidin-3-yl]methyl}-4-methyl-1H-pyrazole	1-{[1-(3-methoxybenzenesulfonyl)azetidin-3-yl]methyl}-4-methyl-1H-pyrazole	分子量：321.4 密度：N/A 沸点：N/A 熔点：N/A	2549012-43-1	C₁₅H₁₉N₃O₃S
1-(2-{4-[(7-Methoxy-4-oxo-3,4-dihydroquinazolin-3-yl)methyl]piperidin-1-yl}-2-oxoethyl)pyrrolidine-2,5-dione	1-(2-{4-[(7-Methoxy-4-oxo-3,4-dihydroquinazolin-3-yl)methyl]piperidin-1-yl}-2-oxoethyl)pyrrolidine-2,5-dione	分子量：412.4 密度：N/A 沸点：N/A 熔点：N/A	2549049-40-1	C₂₁H₂₄N₄O₅
1-{[1-(4-fluoro-3-methylbenzenesulfonyl)azetidin-3-yl]methyl}-4-methyl-1H-pyrazole	1-{[1-(4-fluoro-3-methylbenzenesulfonyl)azetidin-3-yl]methyl}-4-methyl-1H-pyrazole	分子量：323.4 密度：N/A 沸点：N/A 熔点：N/A	2549004-77-3	C₁₅H₁₈FN₃O₂S
1-{[1-(2-methoxy-5-methylbenzenesulfonyl)azetidin-3-yl]methyl}-4-methyl-1H-pyrazole	1-{[1-(2-methoxy-5-methylbenzenesulfonyl)azetidin-3-yl]methyl}-4-methyl-1H-pyrazole	分子量：335.4 密度：N/A 沸点：N/A 熔点：N/A	2549012-38-4	C₁₆H₂₁N₃O₃S
1-{[1-(4-tert-butylbenzenesulfonyl)azetidin-3-yl]methyl}-4-methyl-1H-pyrazole	1-{[1-(4-tert-butylbenzenesulfonyl)azetidin-3-yl]methyl}-4-methyl-1H-pyrazole	分子量：347.5 密度：N/A 沸点：N/A 熔点：N/A	2549012-73-7	C₁₈H₂₅N₃O₂S
3-cyclopropyl-N-(2,3-dihydro-1,4-benzodioxin-6-yl)-[1,2,4]triazolo[4,3-b]pyridazine-6-carboxamide	3-cyclopropyl-N-(2,3-dihydro-1,4-benzodioxin-6-yl)-[1,2,4]triazolo[4,3-b]pyridazine-6-carboxamide	分子量：337.33 密度：N/A 沸点：N/A 熔点：N/A	2549027-91-8	C₁₇H₁₅N₅O₃
2-[1-(3-Chloro-2-methylbenzenesulfonyl)-octahydropyrrolo[2,3-c]pyrrol-5-yl]pyridine	2-[1-(3-Chloro-2-methylbenzenesulfonyl)-octahydropyrrolo[2,3-c]pyrrol-5-yl]pyridine	分子量：377.9 密度：N/A 沸点：N/A 熔点：N/A	2549015-66-7	C₁₈H₂₀ClN₃O₂S
4-{[1-(2-Fluorobenzenesulfonyl)azetidin-3-yl]oxy}pyridine-2-carboxamide	4-{[1-(2-Fluorobenzenesulfonyl)azetidin-3-yl]oxy}pyridine-2-carboxamide	分子量：351.4 密度：N/A 沸点：N/A 熔点：N/A	2548978-78-3	C₁₅H₁₄FN₃O₄S
1-{[1-(3-chloro-4-methoxybenzenesulfonyl)azetidin-3-yl]methyl}-4-methyl-1H-pyrazole	1-{[1-(3-chloro-4-methoxybenzenesulfonyl)azetidin-3-yl]methyl}-4-methyl-1H-pyrazole	分子量：355.8 密度：N/A 沸点：N/A 熔点：N/A	2548978-81-8	C₁₅H₁₈ClN₃O₃S
3-(1H-indol-3-yl)-1-{3-[(4-methyl-1H-pyrazol-1-yl)methyl]azetidin-1-yl}propan-1-one	3-(1H-indol-3-yl)-1-{3-[(4-methyl-1H-pyrazol-1-yl)methyl]azetidin-1-yl}propan-1-one	分子量：322.4 密度：N/A 沸点：N/A 熔点：N/A	2548977-96-2	C₁₉H₂₂N₄O
1-{3-[(1H-imidazol-1-yl)methyl]azetidin-1-yl}-3-(1H-indol-3-yl)propan-1-one	1-{3-[(1H-imidazol-1-yl)methyl]azetidin-1-yl}-3-(1H-indol-3-yl)propan-1-one	分子量：308.4 密度：N/A 沸点：N/A 熔点：N/A	2548989-37-1	C₁₈H₂₀N₄O