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
N-(4-chloro-3-methylphenyl)-5H,6H,7H-cyclopenta[c]pyridazine-3-carboxamide	N-(4-chloro-3-methylphenyl)-5H,6H,7H-cyclopenta[c]pyridazine-3-carboxamide	分子量：287.74 密度：N/A 沸点：N/A 熔点：N/A	2415582-93-1	C₁₅H₁₄ClN₃O
4,6-Dimethyl-N-(4,5,6,7-tetrahydro-1,3-benzothiazol-2-yl)pyrimidine-2-carboxamide	4,6-Dimethyl-N-(4,5,6,7-tetrahydro-1,3-benzothiazol-2-yl)pyrimidine-2-carboxamide	分子量：288.37 密度：N/A 沸点：N/A 熔点：N/A	2415539-67-0	C₁₄H₁₆N₄OS
3-Tert-butyl-6-[5-(2,4-dimethyl-1,3-thiazole-5-carbonyl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]pyridazine	3-Tert-butyl-6-[5-(2,4-dimethyl-1,3-thiazole-5-carbonyl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]pyridazine	分子量：385.5 密度：N/A 沸点：N/A 熔点：N/A	2415539-72-7	C₂₀H₂₇N₅OS
4,6-Dimethyl-N-(2-methyl-1,3-thiazol-5-yl)pyrimidine-2-carboxamide	4,6-Dimethyl-N-(2-methyl-1,3-thiazol-5-yl)pyrimidine-2-carboxamide	分子量：248.31 密度：N/A 沸点：N/A 熔点：N/A	2415455-52-4	C₁₁H₁₂N₄OS
2-cyclopropyl-N-[2-(3,5-dimethyl-1H-pyrazol-1-yl)ethyl]-6-methylpyrimidine-4-carboxamide	2-cyclopropyl-N-[2-(3,5-dimethyl-1H-pyrazol-1-yl)ethyl]-6-methylpyrimidine-4-carboxamide	分子量：299.37 密度：N/A 沸点：N/A 熔点：N/A	2415518-54-4	C₁₆H₂₁N₅O
2-Cyclopropyl-4-methyl-6-{4-[(pyridin-3-yl)methyl]piperazine-1-carbonyl}pyrimidine	2-Cyclopropyl-4-methyl-6-{4-[(pyridin-3-yl)methyl]piperazine-1-carbonyl}pyrimidine	分子量：337.4 密度：N/A 沸点：N/A 熔点：N/A	2415540-31-5	C₁₉H₂₃N₅O
2-cyclopropyl-6-methyl-N-[2-(2-methyl-1H-imidazol-1-yl)ethyl]pyrimidine-4-carboxamide	2-cyclopropyl-6-methyl-N-[2-(2-methyl-1H-imidazol-1-yl)ethyl]pyrimidine-4-carboxamide	分子量：285.34 密度：N/A 沸点：N/A 熔点：N/A	2415518-56-6	C₁₅H₁₉N₅O
1-(3-Methoxybenzoyl)-3-{octahydrocyclopenta[c]pyrrol-2-yl}azetidine	1-(3-Methoxybenzoyl)-3-{octahydrocyclopenta[c]pyrrol-2-yl}azetidine	分子量：300.4 密度：N/A 沸点：N/A 熔点：N/A	2415598-94-4	C₁₈H₂₄N₂O₂
N-(5-Methyl-1,3,4-thiadiazol-2-yl)-6,7-dihydro-5H-cyclopenta[c]pyridazine-3-carboxamide	N-(5-Methyl-1,3,4-thiadiazol-2-yl)-6,7-dihydro-5H-cyclopenta[c]pyridazine-3-carboxamide	分子量：261.31 密度：N/A 沸点：N/A 熔点：N/A	2415553-70-5	C₁₁H₁₁N₅OS
N-[2-(3,5-dimethyl-1H-pyrazol-1-yl)ethyl]-5-fluoro-4-methylpyridine-2-carboxamide	N-[2-(3,5-dimethyl-1H-pyrazol-1-yl)ethyl]-5-fluoro-4-methylpyridine-2-carboxamide	分子量：276.31 密度：N/A 沸点：N/A 熔点：N/A	2415519-87-6	C₁₄H₁₇FN₄O
N,5-Dimethyl-N-(1-pyridin-2-ylazetidin-3-yl)pyrazine-2-carboxamide	N,5-Dimethyl-N-(1-pyridin-2-ylazetidin-3-yl)pyrazine-2-carboxamide	分子量：283.33 密度：N/A 沸点：N/A 熔点：N/A	2415621-14-4	C₁₅H₁₇N₅O
6-{5-[3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carbonyl]-octahydropyrrolo[3,4-c]pyrrol-2-yl}pyridine-3-carbonitrile	6-{5-[3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carbonyl]-octahydropyrrolo[3,4-c]pyrrol-2-yl}pyridine-3-carbonitrile	分子量：372.4 密度：N/A 沸点：N/A 熔点：N/A	2415604-26-9	C₁₈H₁₈F₂N₆O
5-{5H,6H,7H-cyclopenta[c]pyridazine-3-carbonyl}-4H,5H,6H,7H-thieno[3,2-c]pyridine	5-{5H,6H,7H-cyclopenta[c]pyridazine-3-carbonyl}-4H,5H,6H,7H-thieno[3,2-c]pyridine	分子量：285.4 密度：N/A 沸点：N/A 熔点：N/A	2415586-27-3	C₁₅H₁₅N₃OS
N-[2-(Cyclohexen-1-yl)ethyl]-2-cyclopropyl-6-methylpyrimidine-4-carboxamide	N-[2-(Cyclohexen-1-yl)ethyl]-2-cyclopropyl-6-methylpyrimidine-4-carboxamide	分子量：285.4 密度：N/A 沸点：N/A 熔点：N/A	2415531-15-4	C₁₇H₂₃N₃O
5-Chloro-N-[(6-hydroxy-1,4-dithiepan-6-yl)methyl]-2-methoxybenzamide	5-Chloro-N-[(6-hydroxy-1,4-dithiepan-6-yl)methyl]-2-methoxybenzamide	分子量：347.9 密度：N/A 沸点：N/A 熔点：N/A	2415540-82-6	C₁₄H₁₈ClNO₃S₂
5-fluoro-4-methyl-2-{4H,5H,6H,7H-thieno[3,2-c]pyridine-5-carbonyl}pyridine	5-fluoro-4-methyl-2-{4H,5H,6H,7H-thieno[3,2-c]pyridine-5-carbonyl}pyridine	分子量：276.33 密度：N/A 沸点：N/A 熔点：N/A	2415520-22-6	C₁₄H₁₃FN₂OS
3-fluoro-2-methyl-6-{4H,5H,6H,7H-thieno[3,2-c]pyridine-5-carbonyl}pyridine	3-fluoro-2-methyl-6-{4H,5H,6H,7H-thieno[3,2-c]pyridine-5-carbonyl}pyridine	分子量：276.33 密度：N/A 沸点：N/A 熔点：N/A	2415540-95-1	C₁₄H₁₃FN₂OS
4,6-Dimethyl-N-(4-methylpyridin-2-yl)pyrimidine-2-carboxamide	4,6-Dimethyl-N-(4-methylpyridin-2-yl)pyrimidine-2-carboxamide	分子量：242.28 密度：N/A 沸点：N/A 熔点：N/A	2415520-57-7	C₁₃H₁₄N₄O
2-Cyclopropyl-6-methyl-N-(4,5,6,7-tetrahydro-1,3-benzothiazol-2-yl)pyrimidine-4-carboxamide	2-Cyclopropyl-6-methyl-N-(4,5,6,7-tetrahydro-1,3-benzothiazol-2-yl)pyrimidine-4-carboxamide	分子量：314.4 密度：N/A 沸点：N/A 熔点：N/A	2415555-45-0	C₁₆H₁₈N₄OS
2-Benzylsulfanyl-N-[1-(oxan-4-yl)pyrrolidin-3-yl]acetamide	2-Benzylsulfanyl-N-[1-(oxan-4-yl)pyrrolidin-3-yl]acetamide	分子量：334.5 密度：N/A 沸点：N/A 熔点：N/A	2415520-66-8	C₁₈H₂₆N₂O₂S
4,4,4-Trifluoro-N-[[5-(2-methylpyrazol-3-yl)furan-2-yl]methyl]butanamide	4,4,4-Trifluoro-N-[[5-(2-methylpyrazol-3-yl)furan-2-yl]methyl]butanamide	分子量：301.26 密度：N/A 沸点：N/A 熔点：N/A	2415533-71-8	C₁₃H₁₄F₃N₃O₂
3-{4-[5-(Trifluoromethyl)pyridin-2-yl]piperazine-1-carbonyl}-5,6,7,8-tetrahydrocinnoline	3-{4-[5-(Trifluoromethyl)pyridin-2-yl]piperazine-1-carbonyl}-5,6,7,8-tetrahydrocinnoline	分子量：391.4 密度：N/A 沸点：N/A 熔点：N/A	2415521-27-4	C₁₉H₂₀F₃N₅O
N-[(6-Hydroxy-1,4-dithiepan-6-yl)methyl]-2-(2-methoxyphenoxy)acetamide	N-[(6-Hydroxy-1,4-dithiepan-6-yl)methyl]-2-(2-methoxyphenoxy)acetamide	分子量：343.5 密度：N/A 沸点：N/A 熔点：N/A	2415462-71-2	C₁₅H₂₁NO₄S₂
3-Tert-butyl-1-[(6-hydroxy-1,4-dithiepan-6-yl)methyl]urea	3-Tert-butyl-1-[(6-hydroxy-1,4-dithiepan-6-yl)methyl]urea	分子量：278.4 密度：N/A 沸点：N/A 熔点：N/A	2415562-07-9	C₁₁H₂₂N₂O₂S₂
2-(benzyloxy)-N-[(6-hydroxy-1,4-dithiepan-6-yl)methyl]acetamide	2-(benzyloxy)-N-[(6-hydroxy-1,4-dithiepan-6-yl)methyl]acetamide	分子量：327.5 密度：N/A 沸点：N/A 熔点：N/A	2415468-75-4	C₁₅H₂₁NO₃S₂
5-Fluoro-6-methyl-N-(5-methyl-1,3,4-thiadiazol-2-yl)pyridine-2-carboxamide	5-Fluoro-6-methyl-N-(5-methyl-1,3,4-thiadiazol-2-yl)pyridine-2-carboxamide	分子量：252.27 密度：N/A 沸点：N/A 熔点：N/A	2415586-65-9	C₁₀H₉FN₄OS
6-Methyl-N-(2-methyl-1,3-thiazol-5-yl)pyrazine-2-carboxamide	6-Methyl-N-(2-methyl-1,3-thiazol-5-yl)pyrazine-2-carboxamide	分子量：234.28 密度：N/A 沸点：N/A 熔点：N/A	2415463-39-5	C₁₀H₁₀N₄OS
5-Fluoro-4-methyl-N-(5-methyl-1,3,4-thiadiazol-2-yl)pyridine-2-carboxamide	5-Fluoro-4-methyl-N-(5-methyl-1,3,4-thiadiazol-2-yl)pyridine-2-carboxamide	分子量：252.27 密度：N/A 沸点：N/A 熔点：N/A	2415620-62-9	C₁₀H₉FN₄OS
N-(4-Cyclopropyl-1,3-thiazol-2-yl)-5-fluoro-4-methylpyridine-2-carboxamide	N-(4-Cyclopropyl-1,3-thiazol-2-yl)-5-fluoro-4-methylpyridine-2-carboxamide	分子量：277.32 密度：N/A 沸点：N/A 熔点：N/A	2415491-09-5	C₁₃H₁₂FN₃OS
4-{1-[2-(Benzylsulfanyl)acetyl]azetidin-3-yl}piperazin-2-one	4-{1-[2-(Benzylsulfanyl)acetyl]azetidin-3-yl}piperazin-2-one	分子量：319.4 密度：N/A 沸点：N/A 熔点：N/A	2415469-13-3	C₁₆H₂₁N₃O₂S
N-(4-Cyclopropyl-1,3-thiazol-2-yl)-5-fluoro-6-methylpyridine-2-carboxamide	N-(4-Cyclopropyl-1,3-thiazol-2-yl)-5-fluoro-6-methylpyridine-2-carboxamide	分子量：277.32 密度：N/A 沸点：N/A 熔点：N/A	2415542-59-3	C₁₃H₁₂FN₃OS
5-(6-tert-butylpyridazin-3-yl)-N-(prop-2-en-1-yl)-octahydropyrrolo[3,4-c]pyrrole-2-carboxamide	5-(6-tert-butylpyridazin-3-yl)-N-(prop-2-en-1-yl)-octahydropyrrolo[3,4-c]pyrrole-2-carboxamide	分子量：329.4 密度：N/A 沸点：N/A 熔点：N/A	2415586-79-5	C₁₈H₂₇N₅O
3-(2-Bromophenyl)-N-[1-(oxan-4-yl)pyrrolidin-3-yl]propanamide	3-(2-Bromophenyl)-N-[1-(oxan-4-yl)pyrrolidin-3-yl]propanamide	分子量：381.3 密度：N/A 沸点：N/A 熔点：N/A	2415562-32-0	C₁₈H₂₅BrN₂O₂
1-[5-(6-Tert-butylpyridazin-3-yl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]-2-(3,5-dimethyl-1,2-oxazol-4-yl)ethan-1-one	1-[5-(6-Tert-butylpyridazin-3-yl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]-2-(3,5-dimethyl-1,2-oxazol-4-yl)ethan-1-one	分子量：383.5 密度：N/A 沸点：N/A 熔点：N/A	2415470-89-0	C₂₁H₂₉N₅O₂
5-Fluoro-4-methyl-N-(2-methyl-1,3-thiazol-5-yl)pyridine-2-carboxamide	5-Fluoro-4-methyl-N-(2-methyl-1,3-thiazol-5-yl)pyridine-2-carboxamide	分子量：251.28 密度：N/A 沸点：N/A 熔点：N/A	2415471-85-9	C₁₁H₁₀FN₃OS
N-Methyl-N-[1-(3,3,3-trifluoropropylsulfonyl)piperidin-4-yl]pyrimidin-4-amine	N-Methyl-N-[1-(3,3,3-trifluoropropylsulfonyl)piperidin-4-yl]pyrimidin-4-amine	分子量：352.38 密度：N/A 沸点：N/A 熔点：N/A	2415541-88-5	C₁₃H₁₉F₃N₄O₂S
2-{2-[5-(6-Tert-butylpyridazin-3-yl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]-2-oxoethyl}-6-methyl-2,3-dihydropyridazin-3-one	2-{2-[5-(6-Tert-butylpyridazin-3-yl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]-2-oxoethyl}-6-methyl-2,3-dihydropyridazin-3-one	分子量：396.5 密度：N/A 沸点：N/A 熔点：N/A	2415628-39-4	C₂₁H₂₈N₆O₂
1,3,5-trimethyl-N-[1-(oxan-4-yl)pyrrolidin-3-yl]-1H-pyrazole-4-sulfonamide	1,3,5-trimethyl-N-[1-(oxan-4-yl)pyrrolidin-3-yl]-1H-pyrazole-4-sulfonamide	分子量：342.5 密度：N/A 沸点：N/A 熔点：N/A	2415555-19-8	C₁₅H₂₆N₄O₃S
6,7-dimethyl-3-{2-oxo-2-[3-(pyridin-4-yloxy)azetidin-1-yl]ethyl}-2H,3H,5H-[1,3]thiazolo[3,2-a]pyrimidin-5-one	6,7-dimethyl-3-{2-oxo-2-[3-(pyridin-4-yloxy)azetidin-1-yl]ethyl}-2H,3H,5H-[1,3]thiazolo[3,2-a]pyrimidin-5-one	分子量：372.4 密度：N/A 沸点：N/A 熔点：N/A	2415631-36-4	C₁₈H₂₀N₄O₃S
6-{5-[1-(Oxan-4-yl)-5-oxopyrrolidine-3-carbonyl]-octahydropyrrolo[3,4-c]pyrrol-2-yl}pyridine-3-carbonitrile	6-{5-[1-(Oxan-4-yl)-5-oxopyrrolidine-3-carbonyl]-octahydropyrrolo[3,4-c]pyrrol-2-yl}pyridine-3-carbonitrile	分子量：409.5 密度：N/A 沸点：N/A 熔点：N/A	2415490-63-8	C₂₂H₂₇N₅O₃
N-(6-Methoxypyrimidin-4-yl)-4,6-dimethylpyrimidine-2-carboxamide	N-(6-Methoxypyrimidin-4-yl)-4,6-dimethylpyrimidine-2-carboxamide	分子量：259.26 密度：N/A 沸点：N/A 熔点：N/A	2415631-61-5	C₁₂H₁₃N₅O₂
1-(2-Chloro-4-fluorobenzoyl)-3-{octahydrocyclopenta[c]pyrrol-2-yl}azetidine	1-(2-Chloro-4-fluorobenzoyl)-3-{octahydrocyclopenta[c]pyrrol-2-yl}azetidine	分子量：322.8 密度：N/A 沸点：N/A 熔点：N/A	2415524-09-1	C₁₇H₂₀ClFN₂O
N-[(2-Methoxypyridin-3-yl)methyl]-6-methylpyrazine-2-carboxamide	N-[(2-Methoxypyridin-3-yl)methyl]-6-methylpyrazine-2-carboxamide	分子量：258.28 密度：N/A 沸点：N/A 熔点：N/A	2415524-15-9	C₁₃H₁₄N₄O₂
N-[(5-Cyclopropyl-2-fluorophenyl)methyl]but-2-ynamide	N-[(5-Cyclopropyl-2-fluorophenyl)methyl]but-2-ynamide	分子量：231.26 密度：N/A 沸点：N/A 熔点：N/A	2411293-08-6	C₁₄H₁₄FNO
N-(1-Cyanoethyl)-N-methyl-2-(1-methylpyrazol-4-yl)oxybenzamide	N-(1-Cyanoethyl)-N-methyl-2-(1-methylpyrazol-4-yl)oxybenzamide	分子量：284.31 密度：N/A 沸点：N/A 熔点：N/A	2418708-36-6	C₁₅H₁₆N₄O₂
N-[4-Bromo-3-(phenylmethoxy)phenyl]-N-(2,2-diethoxyethyl)methanesulfonamide	N-[4-Bromo-3-(phenylmethoxy)phenyl]-N-(2,2-diethoxyethyl)methanesulfonamide	分子量：472.4 密度：N/A 沸点：N/A 熔点：N/A	2087111-81-5	C₂₀H₂₆BrNO₅S
1-Methyl-4-[[4-[6-(4-methylphenyl)pyridazin-3-yl]piperazin-1-yl]methyl]pyridin-2-one	1-Methyl-4-[[4-[6-(4-methylphenyl)pyridazin-3-yl]piperazin-1-yl]methyl]pyridin-2-one	分子量：375.5 密度：N/A 沸点：N/A 熔点：N/A	2380088-19-5	C₂₂H₂₅N₅O
Methyl 2-(azetidin-3-yl)-2-methoxyacetate	Methyl 2-(azetidin-3-yl)-2-methoxyacetate	分子量：159.18 密度：N/A 沸点：N/A 熔点：N/A	2375261-67-7	C₇H₁₃NO₃
3-Bromo-4-methyl-5-(sulfamoylamino)pyridine	3-Bromo-4-methyl-5-(sulfamoylamino)pyridine	分子量：266.12 密度：N/A 沸点：N/A 熔点：N/A	2168761-41-7	C₆H₈BrN₃O₂S
5-Bromo-2-fluoro-1-methylbenzimidazole	5-Bromo-2-fluoro-1-methylbenzimidazole	分子量：229.05 密度：N/A 沸点：N/A 熔点：N/A	2296362-19-9	C₈H₆BrFN₂