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-(3-chloro-4-fluorobenzyl)-6-(1H-pyrazol-1-yl)nicotinamide	N-(3-chloro-4-fluorobenzyl)-6-(1H-pyrazol-1-yl)nicotinamide	分子量：330.74 密度：N/A 沸点：N/A 熔点：N/A	1251691-38-9	C₁₆H₁₂ClFN₄O
6-(1H-pyrazol-1-yl)-N-(2-(trifluoromethyl)benzyl)nicotinamide	6-(1H-pyrazol-1-yl)-N-(2-(trifluoromethyl)benzyl)nicotinamide	分子量：346.31 密度：N/A 沸点：N/A 熔点：N/A	1251603-15-2	C₁₇H₁₃F₃N₄O
N-(2,4-difluorobenzyl)-6-(1H-pyrazol-1-yl)nicotinamide	N-(2,4-difluorobenzyl)-6-(1H-pyrazol-1-yl)nicotinamide	分子量：314.29 密度：N/A 沸点：N/A 熔点：N/A	1251619-11-0	C₁₆H₁₂F₂N₄O
N-(3,5-difluorobenzyl)-6-(1H-pyrazol-1-yl)nicotinamide	N-(3,5-difluorobenzyl)-6-(1H-pyrazol-1-yl)nicotinamide	分子量：314.29 密度：N/A 沸点：N/A 熔点：N/A	1251704-72-9	C₁₆H₁₂F₂N₄O
N-(2,3-dihydro-1H-inden-1-yl)-2-{8-oxo-2,9-diazatricyclo[8.4.0.0^{3,7}]tetradeca-1(10),2,11,13-tetraen-9-yl}acetamide	N-(2,3-dihydro-1H-inden-1-yl)-2-{8-oxo-2,9-diazatricyclo[8.4.0.0^{3,7}]tetradeca-1(10),2,11,13-tetraen-9-yl}acetamide	分子量：373.4 密度：N/A 沸点：N/A 熔点：N/A	1251709-25-7	C₂₃H₂₃N₃O₂
4-(2-{12,13-Dimethyl-8-oxo-2,9-diazatricyclo[8.4.0.0^{3,7}]tetradeca-1(10),2,11,13-tetraen-9-yl}acetamido)benzamide	4-(2-{12,13-Dimethyl-8-oxo-2,9-diazatricyclo[8.4.0.0^{3,7}]tetradeca-1(10),2,11,13-tetraen-9-yl}acetamido)benzamide	分子量：404.5 密度：N/A 沸点：N/A 熔点：N/A	1251676-00-2	C₂₃H₂₄N₄O₃
N-(2-chloro-4-fluorobenzyl)-6-(1H-pyrazol-1-yl)nicotinamide	N-(2-chloro-4-fluorobenzyl)-6-(1H-pyrazol-1-yl)nicotinamide	分子量：330.74 密度：N/A 沸点：N/A 熔点：N/A	1251684-42-0	C₁₆H₁₂ClFN₄O
(6-(1H-pyrazol-1-yl)pyridin-3-yl)(4-(4-methoxyphenyl)piperazin-1-yl)methanone	(6-(1H-pyrazol-1-yl)pyridin-3-yl)(4-(4-methoxyphenyl)piperazin-1-yl)methanone	分子量：363.4 密度：N/A 沸点：N/A 熔点：N/A	1251593-45-9	C₂₀H₂₁N₅O₂
(6-(1H-pyrazol-1-yl)pyridin-3-yl)(4-(2,3-dimethylphenyl)piperazin-1-yl)methanone	(6-(1H-pyrazol-1-yl)pyridin-3-yl)(4-(2,3-dimethylphenyl)piperazin-1-yl)methanone	分子量：361.4 密度：N/A 沸点：N/A 熔点：N/A	1251603-21-0	C₂₁H₂₃N₅O
3-methyl-2-((3-methylbenzyl)thio)-7-phenyl-3H-pyrrolo[3,2-d]pyrimidin-4(5H)-one	3-methyl-2-((3-methylbenzyl)thio)-7-phenyl-3H-pyrrolo[3,2-d]pyrimidin-4(5H)-one	分子量：361.5 密度：N/A 沸点：N/A 熔点：N/A	1251676-32-0	C₂₁H₁₉N₃OS
2-((8-(furan-2-yl)-(oxo)dihydropyrazolo[1,5-d][1,2,4]triazin-2-yl)thio)-N-(4-methylbenzyl)acetamide	2-((8-(furan-2-yl)-(oxo)dihydropyrazolo[1,5-d][1,2,4]triazin-2-yl)thio)-N-(4-methylbenzyl)acetamide	分子量：395.4 密度：N/A 沸点：N/A 熔点：N/A	1224015-54-6	C₁₉H₁₇N₅O₃S
2-(((3-(3,5-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl)methyl)thio)-3-isobutylthieno[3,2-d]pyrimidin-4(3H)-one	2-(((3-(3,5-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl)methyl)thio)-3-isobutylthieno[3,2-d]pyrimidin-4(3H)-one	分子量：458.6 密度：N/A 沸点：N/A 熔点：N/A	1223963-00-5	C₂₁H₂₂N₄O₄S₂
(6-(1H-pyrazol-1-yl)pyridin-3-yl)(4-(3-methoxyphenyl)piperazin-1-yl)methanone	(6-(1H-pyrazol-1-yl)pyridin-3-yl)(4-(3-methoxyphenyl)piperazin-1-yl)methanone	分子量：363.4 密度：N/A 沸点：N/A 熔点：N/A	1251704-73-0	C₂₀H₂₁N₅O₂
(6-(1H-pyrazol-1-yl)pyridin-3-yl)(4-(2,4-dimethylphenyl)piperazin-1-yl)methanone	(6-(1H-pyrazol-1-yl)pyridin-3-yl)(4-(2,4-dimethylphenyl)piperazin-1-yl)methanone	分子量：361.4 密度：N/A 沸点：N/A 熔点：N/A	1251558-08-3	C₂₁H₂₃N₅O
(6-(1H-pyrazol-1-yl)pyridin-3-yl)(4-(o-tolyl)piperazin-1-yl)methanone	(6-(1H-pyrazol-1-yl)pyridin-3-yl)(4-(o-tolyl)piperazin-1-yl)methanone	分子量：347.4 密度：N/A 沸点：N/A 熔点：N/A	1251575-41-3	C₂₀H₂₁N₅O
N-(3-chlorobenzyl)-6-(3-methyl-1H-pyrazol-1-yl)nicotinamide	N-(3-chlorobenzyl)-6-(3-methyl-1H-pyrazol-1-yl)nicotinamide	分子量：326.8 密度：N/A 沸点：N/A 熔点：N/A	1251593-53-9	C₁₇H₁₅ClN₄O
N-(3,4-dimethoxyphenethyl)-6-(3-methyl-1H-pyrazol-1-yl)nicotinamide	N-(3,4-dimethoxyphenethyl)-6-(3-methyl-1H-pyrazol-1-yl)nicotinamide	分子量：366.4 密度：N/A 沸点：N/A 熔点：N/A	1251631-61-4	C₂₀H₂₂N₄O₃
N-(4-methoxybenzyl)-6-(3-methyl-1H-pyrazol-1-yl)nicotinamide	N-(4-methoxybenzyl)-6-(3-methyl-1H-pyrazol-1-yl)nicotinamide	分子量：322.4 密度：N/A 沸点：N/A 熔点：N/A	1251591-38-4	C₁₈H₁₈N₄O₂
2-(2-furyl)-7-{[4-(2-oxopyrrolidin-1-yl)benzyl]thio}pyrazolo[1,5-d][1,2,4]triazin-4(5H)-one	2-(2-furyl)-7-{[4-(2-oxopyrrolidin-1-yl)benzyl]thio}pyrazolo[1,5-d][1,2,4]triazin-4(5H)-one	分子量：407.4 密度：N/A 沸点：N/A 熔点：N/A	1223864-51-4	C₂₀H₁₇N₅O₃S
N-(4-chlorophenethyl)-6-(3-methyl-1H-pyrazol-1-yl)nicotinamide	N-(4-chlorophenethyl)-6-(3-methyl-1H-pyrazol-1-yl)nicotinamide	分子量：340.8 密度：N/A 沸点：N/A 熔点：N/A	1251603-27-6	C₁₈H₁₇ClN₄O
6-(3-methyl-1H-pyrazol-1-yl)-N-(4-phenylbutan-2-yl)nicotinamide	6-(3-methyl-1H-pyrazol-1-yl)-N-(4-phenylbutan-2-yl)nicotinamide	分子量：334.4 密度：N/A 沸点：N/A 熔点：N/A	1251552-13-2	C₂₀H₂₂N₄O
N-(2,6-dimethylphenyl)-2-({1-methyl-[1,2,4]triazolo[4,3-a]quinoxalin-4-yl}sulfanyl)acetamide	N-(2,6-dimethylphenyl)-2-({1-methyl-[1,2,4]triazolo[4,3-a]quinoxalin-4-yl}sulfanyl)acetamide	分子量：377.5 密度：N/A 沸点：N/A 熔点：N/A	1251688-19-3	C₂₀H₁₉N₅OS
N-(3,4-dimethoxybenzyl)-6-(3-methyl-1H-pyrazol-1-yl)nicotinamide	N-(3,4-dimethoxybenzyl)-6-(3-methyl-1H-pyrazol-1-yl)nicotinamide	分子量：352.4 密度：N/A 沸点：N/A 熔点：N/A	1251602-21-7	C₁₉H₂₀N₄O₃
N-(4-isopropylbenzyl)-6-(3-methyl-1H-pyrazol-1-yl)nicotinamide	N-(4-isopropylbenzyl)-6-(3-methyl-1H-pyrazol-1-yl)nicotinamide	分子量：334.4 密度：N/A 沸点：N/A 熔点：N/A	1251558-14-1	C₂₀H₂₂N₄O
N-(1-(3,4-dimethoxyphenyl)ethyl)-6-(3-methyl-1H-pyrazol-1-yl)nicotinamide	N-(1-(3,4-dimethoxyphenyl)ethyl)-6-(3-methyl-1H-pyrazol-1-yl)nicotinamide	分子量：366.4 密度：N/A 沸点：N/A 熔点：N/A	1251684-49-7	C₂₀H₂₂N₄O₃
N-(3-chloro-4-fluorobenzyl)-6-(3-methyl-1H-pyrazol-1-yl)nicotinamide	N-(3-chloro-4-fluorobenzyl)-6-(3-methyl-1H-pyrazol-1-yl)nicotinamide	分子量：344.8 密度：N/A 沸点：N/A 熔点：N/A	1251691-56-1	C₁₇H₁₄ClFN₄O
N-(2,4-difluorobenzyl)-6-(3-methyl-1H-pyrazol-1-yl)nicotinamide	N-(2,4-difluorobenzyl)-6-(3-methyl-1H-pyrazol-1-yl)nicotinamide	分子量：328.32 密度：N/A 沸点：N/A 熔点：N/A	1251631-64-7	C₁₇H₁₄F₂N₄O
N-(3,5-difluorobenzyl)-6-(3-methyl-1H-pyrazol-1-yl)nicotinamide	N-(3,5-difluorobenzyl)-6-(3-methyl-1H-pyrazol-1-yl)nicotinamide	分子量：328.32 密度：N/A 沸点：N/A 熔点：N/A	1251626-21-7	C₁₇H₁₄F₂N₄O
N-(2-chloro-4-fluorobenzyl)-6-(3-methyl-1H-pyrazol-1-yl)nicotinamide	N-(2-chloro-4-fluorobenzyl)-6-(3-methyl-1H-pyrazol-1-yl)nicotinamide	分子量：344.8 密度：N/A 沸点：N/A 熔点：N/A	1251704-74-1	C₁₇H₁₄ClFN₄O
N-(4-ethoxybenzyl)-6-(3-methyl-1H-pyrazol-1-yl)nicotinamide	N-(4-ethoxybenzyl)-6-(3-methyl-1H-pyrazol-1-yl)nicotinamide	分子量：336.4 密度：N/A 沸点：N/A 熔点：N/A	1251634-89-5	C₁₉H₂₀N₄O₂
N-[(4-chlorophenyl)methyl]-6-(3,5-dimethyl-1H-pyrazol-1-yl)pyridine-3-carboxamide	N-[(4-chlorophenyl)methyl]-6-(3,5-dimethyl-1H-pyrazol-1-yl)pyridine-3-carboxamide	分子量：340.8 密度：N/A 沸点：N/A 熔点：N/A	1251593-58-4	C₁₈H₁₇ClN₄O
6-(3,5-dimethyl-1H-pyrazol-1-yl)-N-(4-phenylbutan-2-yl)nicotinamide	6-(3,5-dimethyl-1H-pyrazol-1-yl)-N-(4-phenylbutan-2-yl)nicotinamide	分子量：348.4 密度：N/A 沸点：N/A 熔点：N/A	1251558-19-6	C₂₁H₂₄N₄O
N-(4-fluorobenzyl)-6-(3,4,5-trimethyl-1H-pyrazol-1-yl)nicotinamide	N-(4-fluorobenzyl)-6-(3,4,5-trimethyl-1H-pyrazol-1-yl)nicotinamide	分子量：338.4 密度：N/A 沸点：N/A 熔点：N/A	1251684-55-5	C₁₉H₁₉FN₄O
N-(3-chlorobenzyl)-6-(3,4,5-trimethyl-1H-pyrazol-1-yl)nicotinamide	N-(3-chlorobenzyl)-6-(3,4,5-trimethyl-1H-pyrazol-1-yl)nicotinamide	分子量：354.8 密度：N/A 沸点：N/A 熔点：N/A	1251552-23-4	C₁₉H₁₉ClN₄O
1-(4-(2-(3,4-dimethoxyphenyl)acetamido)benzyl)-N-(4-ethylphenyl)-1H-imidazole-4-carboxamide	1-(4-(2-(3,4-dimethoxyphenyl)acetamido)benzyl)-N-(4-ethylphenyl)-1H-imidazole-4-carboxamide	分子量：498.6 密度：N/A 沸点：N/A 熔点：N/A	1251689-39-0	C₂₉H₃₀N₄O₄
N-[2-(3,4-dimethoxyphenyl)ethyl]-6-(3,4,5-trimethyl-1H-pyrazol-1-yl)pyridine-3-carboxamide	N-[2-(3,4-dimethoxyphenyl)ethyl]-6-(3,4,5-trimethyl-1H-pyrazol-1-yl)pyridine-3-carboxamide	分子量：394.5 密度：N/A 沸点：N/A 熔点：N/A	1251697-59-2	C₂₂H₂₆N₄O₃
N-(3,4-dimethoxybenzyl)-6-(3,4,5-trimethyl-1H-pyrazol-1-yl)nicotinamide	N-(3,4-dimethoxybenzyl)-6-(3,4,5-trimethyl-1H-pyrazol-1-yl)nicotinamide	分子量：380.4 密度：N/A 沸点：N/A 熔点：N/A	1251704-75-2	C₂₁H₂₄N₄O₃
N-(2-(thiophen-2-yl)ethyl)-6-(3,4,5-trimethyl-1H-pyrazol-1-yl)nicotinamide	N-(2-(thiophen-2-yl)ethyl)-6-(3,4,5-trimethyl-1H-pyrazol-1-yl)nicotinamide	分子量：340.4 密度：N/A 沸点：N/A 熔点：N/A	1251691-64-1	C₁₈H₂₀N₄OS
N-(2-ethoxybenzyl)-6-(3,4,5-trimethyl-1H-pyrazol-1-yl)nicotinamide	N-(2-ethoxybenzyl)-6-(3,4,5-trimethyl-1H-pyrazol-1-yl)nicotinamide	分子量：364.4 密度：N/A 沸点：N/A 熔点：N/A	1251684-60-2	C₂₁H₂₄N₄O₂
N-(1-(3,4-dimethoxyphenyl)ethyl)-6-(3,4,5-trimethyl-1H-pyrazol-1-yl)nicotinamide	N-(1-(3,4-dimethoxyphenyl)ethyl)-6-(3,4,5-trimethyl-1H-pyrazol-1-yl)nicotinamide	分子量：394.5 密度：N/A 沸点：N/A 熔点：N/A	1251634-95-3	C₂₂H₂₆N₄O₃
N-[2-(2-methoxyphenoxy)ethyl]-6-(3,4,5-trimethyl-1H-pyrazol-1-yl)pyridine-3-carboxamide	N-[2-(2-methoxyphenoxy)ethyl]-6-(3,4,5-trimethyl-1H-pyrazol-1-yl)pyridine-3-carboxamide	分子量：380.4 密度：N/A 沸点：N/A 熔点：N/A	1251602-26-2	C₂₁H₂₄N₄O₃
N-(2,4-dimethylphenyl)-1-{[4-(3-methylbenzamido)phenyl]methyl}-1H-imidazole-4-carboxamide	N-(2,4-dimethylphenyl)-1-{[4-(3-methylbenzamido)phenyl]methyl}-1H-imidazole-4-carboxamide	分子量：438.5 密度：N/A 沸点：N/A 熔点：N/A	1251593-61-9	C₂₇H₂₆N₄O₂
ethyl 5-methyl-1-(5-((pyridin-2-ylmethyl)carbamoyl)pyridin-2-yl)-1H-pyrazole-4-carboxylate	ethyl 5-methyl-1-(5-((pyridin-2-ylmethyl)carbamoyl)pyridin-2-yl)-1H-pyrazole-4-carboxylate	分子量：365.4 密度：N/A 沸点：N/A 熔点：N/A	1251697-72-9	C₁₉H₁₉N₅O₃
ethyl 1-(5-((4-fluorobenzyl)carbamoyl)pyridin-2-yl)-5-methyl-1H-pyrazole-4-carboxylate	ethyl 1-(5-((4-fluorobenzyl)carbamoyl)pyridin-2-yl)-5-methyl-1H-pyrazole-4-carboxylate	分子量：382.4 密度：N/A 沸点：N/A 熔点：N/A	1251626-27-3	C₂₀H₁₉FN₄O₃
N-(4-chlorophenethyl)-1-(5-isobutyramidopyridin-2-yl)-1H-imidazole-4-carboxamide	N-(4-chlorophenethyl)-1-(5-isobutyramidopyridin-2-yl)-1H-imidazole-4-carboxamide	分子量：411.9 密度：N/A 沸点：N/A 熔点：N/A	1251704-77-4	C₂₁H₂₂ClN₅O₂
2-methyl-N-{6-[4-(1,2,3,4-tetrahydroisoquinoline-2-carbonyl)-1H-imidazol-1-yl]pyridin-3-yl}propanamide	2-methyl-N-{6-[4-(1,2,3,4-tetrahydroisoquinoline-2-carbonyl)-1H-imidazol-1-yl]pyridin-3-yl}propanamide	分子量：389.4 密度：N/A 沸点：N/A 熔点：N/A	1251552-39-2	C₂₂H₂₃N₅O₂
N-cyclohexyl-1-{5-[(3-methylbutanoyl)amino]pyridin-2-yl}-1H-imidazole-4-carboxamide	N-cyclohexyl-1-{5-[(3-methylbutanoyl)amino]pyridin-2-yl}-1H-imidazole-4-carboxamide	分子量：369.5 密度：N/A 沸点：N/A 熔点：N/A	1251602-33-1	C₂₀H₂₇N₅O₂
N-cycloheptyl-1-[5-(3-methylbutanamido)pyridin-2-yl]-1H-imidazole-4-carboxamide	N-cycloheptyl-1-[5-(3-methylbutanamido)pyridin-2-yl]-1H-imidazole-4-carboxamide	分子量：383.5 密度：N/A 沸点：N/A 熔点：N/A	1251684-68-0	C₂₁H₂₉N₅O₂
3-methyl-N-{6-[4-(piperidin-1-ylcarbonyl)-1H-imidazol-1-yl]pyridin-3-yl}butanamide	3-methyl-N-{6-[4-(piperidin-1-ylcarbonyl)-1H-imidazol-1-yl]pyridin-3-yl}butanamide	分子量：355.4 密度：N/A 沸点：N/A 熔点：N/A	1251697-77-4	C₁₉H₂₅N₅O₂
3-methyl-N-(6-(4-(3-methylpiperidine-1-carbonyl)-1H-imidazol-1-yl)pyridin-3-yl)butanamide	3-methyl-N-(6-(4-(3-methylpiperidine-1-carbonyl)-1H-imidazol-1-yl)pyridin-3-yl)butanamide	分子量：369.5 密度：N/A 沸点：N/A 熔点：N/A	1251591-54-4	C₂₀H₂₇N₅O₂