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-methoxyphenethyl)-2-(pyrazin-2-yl)thiazole-4-carboxamide	N-(3-methoxyphenethyl)-2-(pyrazin-2-yl)thiazole-4-carboxamide	分子量：340.4 密度：N/A 沸点：N/A 熔点：N/A	1235069-11-0	C₁₇H₁₆N₄O₂S
N-(2,6-difluorobenzyl)-2-(pyrazin-2-yl)thiazole-4-carboxamide	N-(2,6-difluorobenzyl)-2-(pyrazin-2-yl)thiazole-4-carboxamide	分子量：332.3 密度：N/A 沸点：N/A 熔点：N/A	1234874-17-9	C₁₅H₁₀F₂N₄OS
(2-(Pyrazin-2-yl)thiazol-4-yl)(4-(3-(trifluoromethyl)phenyl)piperazin-1-yl)methanone	(2-(Pyrazin-2-yl)thiazol-4-yl)(4-(3-(trifluoromethyl)phenyl)piperazin-1-yl)methanone	分子量：419.4 密度：N/A 沸点：N/A 熔点：N/A	1235637-34-9	C₁₉H₁₆F₃N₅OS
4-methyl-N-(2-(quinolin-8-yloxy)ethyl)-1,2,3-thiadiazole-5-carboxamide	4-methyl-N-(2-(quinolin-8-yloxy)ethyl)-1,2,3-thiadiazole-5-carboxamide	分子量：314.4 密度：N/A 沸点：N/A 熔点：N/A	1234973-86-4	C₁₅H₁₄N₄O₂S
1-[1-(Furan-2-yl)propan-2-yl]-3-(thiophen-2-yl)urea	1-[1-(Furan-2-yl)propan-2-yl]-3-(thiophen-2-yl)urea	分子量：250.32 密度：N/A 沸点：N/A 熔点：N/A	1235295-36-9	C₁₂H₁₄N₂O₂S
2-(2,6-dioxopiperidin-1-yl)-N-((1-(4-methoxyphenyl)cyclopentyl)methyl)ethanesulfonamide	2-(2,6-dioxopiperidin-1-yl)-N-((1-(4-methoxyphenyl)cyclopentyl)methyl)ethanesulfonamide	分子量：408.5 密度：N/A 沸点：N/A 熔点：N/A	1325746-32-4	C₂₀H₂₈N₂O₅S
N-(4-(3-oxo-3-(4-(m-tolyl)piperazin-1-yl)propyl)thiazol-2-yl)furan-2-carboxamide	N-(4-(3-oxo-3-(4-(m-tolyl)piperazin-1-yl)propyl)thiazol-2-yl)furan-2-carboxamide	分子量：424.5 密度：N/A 沸点：N/A 熔点：N/A	1021227-10-0	C₂₂H₂₄N₄O₃S
1-(Cyclopropylsulfonyl)-4-(3-methoxyphenyl)piperazine	1-(Cyclopropylsulfonyl)-4-(3-methoxyphenyl)piperazine	分子量：296.39 密度：N/A 沸点：N/A 熔点：N/A	1235344-40-7	C₁₄H₂₀N₂O₃S
4-fluoro-N-(pyridin-2-ylmethyl)-N-(thiophen-3-ylmethyl)benzamide	4-fluoro-N-(pyridin-2-ylmethyl)-N-(thiophen-3-ylmethyl)benzamide	分子量：326.4 密度：N/A 沸点：N/A 熔点：N/A	1235327-99-7	C₁₈H₁₅FN₂OS
N-(4-(3-oxo-3-((pyridin-4-ylmethyl)amino)propyl)thiazol-2-yl)benzamide	N-(4-(3-oxo-3-((pyridin-4-ylmethyl)amino)propyl)thiazol-2-yl)benzamide	分子量：366.4 密度：N/A 沸点：N/A 熔点：N/A	1021266-67-0	C₁₉H₁₈N₄O₂S
2-(3,5-dimethylisoxazol-4-yl)-N-(4-(furan-2-yl)thiazol-2-yl)acetamide	2-(3,5-dimethylisoxazol-4-yl)-N-(4-(furan-2-yl)thiazol-2-yl)acetamide	分子量：303.34 密度：N/A 沸点：N/A 熔点：N/A	1235247-75-2	C₁₄H₁₃N₃O₃S
2-(3,5-dimethyl-4-isoxazolyl)-N~1~-(2-furylmethyl)acetamide	2-(3,5-dimethyl-4-isoxazolyl)-N~1~-(2-furylmethyl)acetamide	分子量：234.25 密度：N/A 沸点：N/A 熔点：N/A	1235004-97-3	C₁₂H₁₄N₂O₃
3-(3,5-dimethylisoxazol-4-yl)-N-(4-(pyridin-3-yl)thiazol-2-yl)propanamide	3-(3,5-dimethylisoxazol-4-yl)-N-(4-(pyridin-3-yl)thiazol-2-yl)propanamide	分子量：328.4 密度：N/A 沸点：N/A 熔点：N/A	1235374-08-9	C₁₆H₁₆N₄O₂S
(4-(2-Fluorophenyl)piperazin-1-yl)(2-methoxypyridin-3-yl)methanone	(4-(2-Fluorophenyl)piperazin-1-yl)(2-methoxypyridin-3-yl)methanone	分子量：315.34 密度：N/A 沸点：N/A 熔点：N/A	1234979-86-2	C₁₇H₁₈FN₃O₂
N-(4-chlorobenzyl)-1-methyl-1H-1,2,3-triazole-4-carboxamide	N-(4-chlorobenzyl)-1-methyl-1H-1,2,3-triazole-4-carboxamide	分子量：250.68 密度：N/A 沸点：N/A 熔点：N/A	1235650-95-9	C₁₁H₁₁ClN₄O
1-methyl-N-phenethyl-1H-1,2,3-triazole-4-carboxamide	1-methyl-N-phenethyl-1H-1,2,3-triazole-4-carboxamide	分子量：230.27 密度：N/A 沸点：N/A 熔点：N/A	1235299-87-2	C₁₂H₁₄N₄O
N-(4-(5-((4-methoxyphenyl)(methyl)amino)-1,3,4-thiadiazol-2-yl)phenyl)acetamide	N-(4-(5-((4-methoxyphenyl)(methyl)amino)-1,3,4-thiadiazol-2-yl)phenyl)acetamide	分子量：354.4 密度：N/A 沸点：N/A 熔点：N/A	1021134-25-7	C₁₈H₁₈N₄O₂S
N-((1-methyl-1H-pyrrol-2-yl)methyl)-N-(thiophen-2-ylmethyl)pyrazine-2-carboxamide	N-((1-methyl-1H-pyrrol-2-yl)methyl)-N-(thiophen-2-ylmethyl)pyrazine-2-carboxamide	分子量：312.4 密度：N/A 沸点：N/A 熔点：N/A	1325682-08-3	C₁₆H₁₆N₄OS
2-methyl-N-((1-methyl-1H-pyrrol-2-yl)methyl)-N-(thiophen-2-ylmethyl)imidazo[1,2-a]pyridine-3-carboxamide	2-methyl-N-((1-methyl-1H-pyrrol-2-yl)methyl)-N-(thiophen-2-ylmethyl)imidazo[1,2-a]pyridine-3-carboxamide	分子量：364.5 密度：N/A 沸点：N/A 熔点：N/A	1286728-92-4	C₂₀H₂₀N₄OS
N-((1-methyl-1H-pyrrol-2-yl)methyl)-2-oxo-N-(thiophen-2-ylmethyl)-2H-chromene-3-carboxamide	N-((1-methyl-1H-pyrrol-2-yl)methyl)-2-oxo-N-(thiophen-2-ylmethyl)-2H-chromene-3-carboxamide	分子量：378.4 密度：N/A 沸点：N/A 熔点：N/A	1251614-87-5	C₂₁H₁₈N₂O₃S
2-(4-(isopropylsulfonyl)phenyl)-N-((1-methyl-1H-pyrrol-2-yl)methyl)-N-(thiophen-2-ylmethyl)acetamide	2-(4-(isopropylsulfonyl)phenyl)-N-((1-methyl-1H-pyrrol-2-yl)methyl)-N-(thiophen-2-ylmethyl)acetamide	分子量：430.6 密度：N/A 沸点：N/A 熔点：N/A	1325746-49-3	C₂₂H₂₆N₂O₃S₂
1-(3-chlorophenyl)-N-((1-methyl-1H-pyrrol-2-yl)methyl)-N-(thiophen-2-ylmethyl)methanesulfonamide	1-(3-chlorophenyl)-N-((1-methyl-1H-pyrrol-2-yl)methyl)-N-(thiophen-2-ylmethyl)methanesulfonamide	分子量：394.9 密度：N/A 沸点：N/A 熔点：N/A	1251546-97-0	C₁₈H₁₉ClN₂O₂S₂
3-[(1-methyl-1H-pyrrol-2-yl)methyl]-3-[(thiophen-2-yl)methyl]-1-[3-(trifluoromethyl)phenyl]urea	3-[(1-methyl-1H-pyrrol-2-yl)methyl]-3-[(thiophen-2-yl)methyl]-1-[3-(trifluoromethyl)phenyl]urea	分子量：393.4 密度：N/A 沸点：N/A 熔点：N/A	1257552-92-3	C₁₉H₁₈F₃N₃OS
3-(4-butoxyphenyl)-1-((1-methyl-1H-pyrrol-2-yl)methyl)-1-(thiophen-2-ylmethyl)urea	3-(4-butoxyphenyl)-1-((1-methyl-1H-pyrrol-2-yl)methyl)-1-(thiophen-2-ylmethyl)urea	分子量：397.5 密度：N/A 沸点：N/A 熔点：N/A	1257553-41-5	C₂₂H₂₇N₃O₂S
N-cyclopropyl-N-(thiophen-3-ylmethyl)-2-(trifluoromethyl)benzamide	N-cyclopropyl-N-(thiophen-3-ylmethyl)-2-(trifluoromethyl)benzamide	分子量：325.4 密度：N/A 沸点：N/A 熔点：N/A	1235019-84-7	C₁₆H₁₄F₃NOS
N-cyclopropyl-N-(thiophen-3-ylmethyl)-4-(trifluoromethoxy)benzenesulfonamide	N-cyclopropyl-N-(thiophen-3-ylmethyl)-4-(trifluoromethoxy)benzenesulfonamide	分子量：377.4 密度：N/A 沸点：N/A 熔点：N/A	1235354-40-1	C₁₅H₁₄F₃NO₃S₂
1-Cyclopropyl-3-(3,4-dichlorophenyl)-1-(thiophen-3-ylmethyl)urea	1-Cyclopropyl-3-(3,4-dichlorophenyl)-1-(thiophen-3-ylmethyl)urea	分子量：341.3 密度：N/A 沸点：N/A 熔点：N/A	1235386-73-8	C₁₅H₁₄Cl₂N₂OS
2-(4-chlorophenoxy)-N-(2-methoxyethyl)-2-methyl-N-(thiophen-3-ylmethyl)propanamide	2-(4-chlorophenoxy)-N-(2-methoxyethyl)-2-methyl-N-(thiophen-3-ylmethyl)propanamide	分子量：367.9 密度：N/A 沸点：N/A 熔点：N/A	1235340-41-6	C₁₈H₂₂ClNO₃S
1-(3-fluorophenyl)-N-propyl-N-(thiophen-3-ylmethyl)methanesulfonamide	1-(3-fluorophenyl)-N-propyl-N-(thiophen-3-ylmethyl)methanesulfonamide	分子量：327.4 密度：N/A 沸点：N/A 熔点：N/A	1235095-46-1	C₁₅H₁₈FNO₂S₂
N-(thiophen-3-ylmethyl)-N-(2,2,2-trifluoroethyl)pyrazine-2-carboxamide	N-(thiophen-3-ylmethyl)-N-(2,2,2-trifluoroethyl)pyrazine-2-carboxamide	分子量：301.29 密度：N/A 沸点：N/A 熔点：N/A	1235049-87-2	C₁₂H₁₀F₃N₃OS
2-methyl-N-(thiophen-3-ylmethyl)-N-(2,2,2-trifluoroethyl)benzamide	2-methyl-N-(thiophen-3-ylmethyl)-N-(2,2,2-trifluoroethyl)benzamide	分子量：313.3 密度：N/A 沸点：N/A 熔点：N/A	1235007-79-0	C₁₅H₁₄F₃NOS
2,5-dimethyl-N-(thiophen-3-ylmethyl)-N-(2,2,2-trifluoroethyl)furan-3-carboxamide	2,5-dimethyl-N-(thiophen-3-ylmethyl)-N-(2,2,2-trifluoroethyl)furan-3-carboxamide	分子量：317.33 密度：N/A 沸点：N/A 熔点：N/A	1235068-02-6	C₁₄H₁₄F₃NO₂S
4-methyl-N-(thiophen-3-ylmethyl)-N-(2,2,2-trifluoroethyl)-1,2,3-thiadiazole-5-carboxamide	4-methyl-N-(thiophen-3-ylmethyl)-N-(2,2,2-trifluoroethyl)-1,2,3-thiadiazole-5-carboxamide	分子量：321.3 密度：N/A 沸点：N/A 熔点：N/A	1235042-07-5	C₁₁H₁₀F₃N₃OS₂
4-cyano-N-(thiophen-3-ylmethyl)-N-(2,2,2-trifluoroethyl)benzamide	4-cyano-N-(thiophen-3-ylmethyl)-N-(2,2,2-trifluoroethyl)benzamide	分子量：324.3 密度：N/A 沸点：N/A 熔点：N/A	1234871-39-6	C₁₅H₁₁F₃N₂OS
N-(thiophen-3-ylmethyl)-N-(2,2,2-trifluoroethyl)cinnamamide	N-(thiophen-3-ylmethyl)-N-(2,2,2-trifluoroethyl)cinnamamide	分子量：325.4 密度：N/A 沸点：N/A 熔点：N/A	1235691-57-2	C₁₆H₁₄F₃NOS
2-(Thiomorpholin-4-yl)butanoic acid	2-(Thiomorpholin-4-yl)butanoic acid	分子量：189.28 密度：N/A 沸点：N/A 熔点：N/A	1218174-97-0	C₈H₁₅NO₂S
N-(thiophen-3-ylmethyl)-N-(2,2,2-trifluoroethyl)pyridine-3-sulfonamide	N-(thiophen-3-ylmethyl)-N-(2,2,2-trifluoroethyl)pyridine-3-sulfonamide	分子量：336.4 密度：N/A 沸点：N/A 熔点：N/A	1235319-56-8	C₁₂H₁₁F₃N₂O₂S₂
4-[4-(Sec-butyl)phenoxy]-2-(trifluoromethyl)-phenylamine	4-[4-(Sec-butyl)phenoxy]-2-(trifluoromethyl)-phenylamine	分子量：309.33 密度：N/A 沸点：N/A 熔点：N/A	946741-47-5	C₁₇H₁₈F₃NO
4-[4-(Sec-butyl)phenoxy]-3-fluorophenylamine	4-[4-(Sec-butyl)phenoxy]-3-fluorophenylamine	分子量：259.32 密度：N/A 沸点：N/A 熔点：N/A	946664-14-8	C₁₆H₁₈FNO
(4-Chlorophenyl)[4-(3-piperidinylmethoxy)phenyl]-methanone	(4-Chlorophenyl)[4-(3-piperidinylmethoxy)phenyl]-methanone	分子量：329.8 密度：N/A 沸点：N/A 熔点：N/A	946724-86-3	C₁₉H₂₀ClNO₂
(4-Chlorophenyl)[4-(3-piperidinyloxy)phenyl]-methanone	(4-Chlorophenyl)[4-(3-piperidinyloxy)phenyl]-methanone	分子量：315.8 密度：N/A 沸点：N/A 熔点：N/A	946759-28-0	C₁₈H₁₈ClNO₂
N-(5-chloro-2-methoxyphenyl)-2-[3-(3-chlorophenyl)-2-oxoimidazolidin-1-yl]acetamide	N-(5-chloro-2-methoxyphenyl)-2-[3-(3-chlorophenyl)-2-oxoimidazolidin-1-yl]acetamide	分子量：394.2 密度：N/A 沸点：N/A 熔点：N/A	1331341-16-2	C₁₈H₁₇Cl₂N₃O₃
1-(4-Chlorophenyl)-3-(2-oxo-2-(4-(pyridin-4-ylmethyl)piperazin-1-yl)ethyl)imidazolidin-2-one	1-(4-Chlorophenyl)-3-(2-oxo-2-(4-(pyridin-4-ylmethyl)piperazin-1-yl)ethyl)imidazolidin-2-one	分子量：413.9 密度：N/A 沸点：N/A 熔点：N/A	1324291-05-5	C₂₁H₂₄ClN₅O₂
2-amino-N-[(3-fluorophenyl)methyl]-N-methylpentanamide	2-amino-N-[(3-fluorophenyl)methyl]-N-methylpentanamide	分子量：238.30 密度：N/A 沸点：N/A 熔点：N/A	1218040-65-3	C₁₃H₁₉FN₂O
6-methoxy-N,3-dimethylbenzofuran-2-carboxamide	6-methoxy-N,3-dimethylbenzofuran-2-carboxamide	分子量：219.24 密度：N/A 沸点：N/A 熔点：N/A	1235107-74-0	C₁₂H₁₃NO₃
6-methoxy-N-(2-methoxyethyl)-3-methyl-1-benzofuran-2-carboxamide	6-methoxy-N-(2-methoxyethyl)-3-methyl-1-benzofuran-2-carboxamide	分子量：263.29 密度：N/A 沸点：N/A 熔点：N/A	1235181-44-8	C₁₄H₁₇NO₄
2-(4-oxo-3,4-dihydro-1,2,3-benzotriazin-3-yl)-N-[(pyridin-4-yl)methyl]propanamide	2-(4-oxo-3,4-dihydro-1,2,3-benzotriazin-3-yl)-N-[(pyridin-4-yl)methyl]propanamide	分子量：309.32 密度：N/A 沸点：N/A 熔点：N/A	1235649-68-9	C₁₆H₁₅N₅O₂
(E)-(4-cinnamylpiperazin-1-yl)(2-(pyrazin-2-yl)thiazol-4-yl)methanone	(E)-(4-cinnamylpiperazin-1-yl)(2-(pyrazin-2-yl)thiazol-4-yl)methanone	分子量：391.5 密度：N/A 沸点：N/A 熔点：N/A	913521-64-9	C₂₁H₂₁N₅OS
2-((5-(4-(2-(ethylthio)benzoyl)piperazin-1-yl)-1,3,4-thiadiazol-2-yl)thio)-N-methylacetamide	2-((5-(4-(2-(ethylthio)benzoyl)piperazin-1-yl)-1,3,4-thiadiazol-2-yl)thio)-N-methylacetamide	分子量：437.6 密度：N/A 沸点：N/A 熔点：N/A	1323314-33-5	C₁₈H₂₃N₅O₂S₃
(4-(5-(5-Methyl-1,2,4-oxadiazol-3-yl)pyridin-2-yl)piperazin-1-yl)(thiophen-2-yl)methanone	(4-(5-(5-Methyl-1,2,4-oxadiazol-3-yl)pyridin-2-yl)piperazin-1-yl)(thiophen-2-yl)methanone	分子量：355.4 密度：N/A 沸点：N/A 熔点：N/A	1235076-06-8	C₁₇H₁₇N₅O₂S