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-benzyl-N-methyl-3-phenyl-5,6-dihydro-1,4-oxathiine-2-carboxamide	N-benzyl-N-methyl-3-phenyl-5,6-dihydro-1,4-oxathiine-2-carboxamide	分子量：325.4 密度：N/A 沸点：N/A 熔点：N/A	1010884-80-6	C₁₉H₁₉NO₂S
N-[2-(2-chlorophenyl)-4-oxo-4H-chromen-6-yl]pyridine-3-carboxamide	N-[2-(2-chlorophenyl)-4-oxo-4H-chromen-6-yl]pyridine-3-carboxamide	分子量：376.8 密度：N/A 沸点：N/A 熔点：N/A	1010921-29-5	C₂₁H₁₃ClN₂O₃
(2-Chlorophenyl)[4-([1,2,4]triazolo[4,3-a]pyridin-3-yl)piperidin-1-yl]methanone	(2-Chlorophenyl)[4-([1,2,4]triazolo[4,3-a]pyridin-3-yl)piperidin-1-yl]methanone	分子量：340.8 密度：N/A 沸点：N/A 熔点：N/A	1010921-35-3	C₁₈H₁₇ClN₄O
4-methyl-N-(4-methyl-1,3-thiazol-2-yl)-2-(1H-pyrrol-1-yl)-1,3-thiazole-5-carboxamide	4-methyl-N-(4-methyl-1,3-thiazol-2-yl)-2-(1H-pyrrol-1-yl)-1,3-thiazole-5-carboxamide	分子量：304.4 密度：N/A 沸点：N/A 熔点：N/A	1010921-71-7	C₁₃H₁₂N₄OS₂
N-{3-[(3-chloro-4-methoxyphenyl)amino]-3-oxopropyl}-4-methoxy-1H-indole-2-carboxamide	N-{3-[(3-chloro-4-methoxyphenyl)amino]-3-oxopropyl}-4-methoxy-1H-indole-2-carboxamide	分子量：401.8 密度：N/A 沸点：N/A 熔点：N/A	1010921-86-4	C₂₀H₂₀ClN₃O₄
(E)-3-(benzylsulfonyl)-N-(7-(prop-2-yn-1-yl)-[1,3]dioxolo[4',5':4,5]benzo[1,2-d]thiazol-6(7H)-ylidene)propanamide	(E)-3-(benzylsulfonyl)-N-(7-(prop-2-yn-1-yl)-[1,3]dioxolo[4',5':4,5]benzo[1,2-d]thiazol-6(7H)-ylidene)propanamide	分子量：442.5 密度：N/A 沸点：N/A 熔点：N/A	1007088-38-1	C₂₁H₁₈N₂O₅S₂
3-phenyl-9-propyl-9,10-dihydrochromeno[8,7-e][1,3]oxazin-4(8H)-one	3-phenyl-9-propyl-9,10-dihydrochromeno[8,7-e][1,3]oxazin-4(8H)-one	分子量：321.4 密度：N/A 沸点：N/A 熔点：N/A	1010885-84-3	C₂₀H₁₉NO₃
(7Z)-9-methyl-3-(propan-2-yl)-7-(thiophen-2-ylmethylidene)-3,4-dihydro-2H-furo[3,2-g][1,3]benzoxazin-6(7H)-one	(7Z)-9-methyl-3-(propan-2-yl)-7-(thiophen-2-ylmethylidene)-3,4-dihydro-2H-furo[3,2-g][1,3]benzoxazin-6(7H)-one	分子量：341.4 密度：N/A 沸点：N/A 熔点：N/A	1021078-41-0	C₁₉H₁₉NO₃S
N-{1-cyclopentyl-4,5-dimethyl-3-[(4-methylphenyl)sulfonyl]-1H-pyrrol-2-yl}furan-2-carboxamide	N-{1-cyclopentyl-4,5-dimethyl-3-[(4-methylphenyl)sulfonyl]-1H-pyrrol-2-yl}furan-2-carboxamide	分子量：426.5 密度：N/A 沸点：N/A 熔点：N/A	1010904-92-3	C₂₃H₂₆N₂O₄S
N-{3-[(4-methoxyphenyl)sulfonyl]-4,5-dimethyl-1-propyl-1H-pyrrol-2-yl}-3-methylbenzamide	N-{3-[(4-methoxyphenyl)sulfonyl]-4,5-dimethyl-1-propyl-1H-pyrrol-2-yl}-3-methylbenzamide	分子量：440.6 密度：N/A 沸点：N/A 熔点：N/A	1010886-13-1	C₂₄H₂₈N₂O₄S
Ethanone, 1-[4-(2,1,3-benzoxadiazol-4-ylsulfonyl)-1-piperazinyl]-2-(1H-indol-3-yl)-	Ethanone, 1-[4-(2,1,3-benzoxadiazol-4-ylsulfonyl)-1-piperazinyl]-2-(1H-indol-3-yl)-	分子量：425.5 密度：N/A 沸点：N/A 熔点：N/A	1010904-99-0	C₂₀H₁₉N₅O₄S
N-{2-[(3,4-dimethoxyphenyl)carbonyl]-3-methyl-1-benzofuran-5-yl}pyridine-2-carboxamide	N-{2-[(3,4-dimethoxyphenyl)carbonyl]-3-methyl-1-benzofuran-5-yl}pyridine-2-carboxamide	分子量：416.4 密度：N/A 沸点：N/A 熔点：N/A	1010905-03-9	C₂₄H₂₀N₂O₅
N-(4-carbamoylphenyl)-1-ethyl-6-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxamide	N-(4-carbamoylphenyl)-1-ethyl-6-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxamide	分子量：365.4 密度：N/A 沸点：N/A 熔点：N/A	1010886-29-9	C₂₀H₁₉N₃O₄
3-(4-fluorophenyl)-9-(2-methoxyethyl)-9,10-dihydrochromeno[8,7-e][1,3]oxazin-4(8H)-one	3-(4-fluorophenyl)-9-(2-methoxyethyl)-9,10-dihydrochromeno[8,7-e][1,3]oxazin-4(8H)-one	分子量：355.4 密度：N/A 沸点：N/A 熔点：N/A	1010886-37-9	C₂₀H₁₈FNO₄
N-(2-{[(3,4-dichlorophenyl)carbonyl]amino}ethyl)-1H-indole-3-carboxamide	N-(2-{[(3,4-dichlorophenyl)carbonyl]amino}ethyl)-1H-indole-3-carboxamide	分子量：376.2 密度：N/A 沸点：N/A 熔点：N/A	1010886-46-0	C₁₈H₁₅Cl₂N₃O₂
7-(3,5-dichlorophenyl)-2-ethyl-3-(4-methoxyphenyl)pyrazolo[5,1-c]pyrido[4,3-e][1,2,4]triazin-6(7H)-one	7-(3,5-dichlorophenyl)-2-ethyl-3-(4-methoxyphenyl)pyrazolo[5,1-c]pyrido[4,3-e][1,2,4]triazin-6(7H)-one	分子量：466.3 密度：N/A 沸点：N/A 熔点：N/A	1010897-08-1	C₂₃H₁₇Cl₂N₅O₂
N-{3-[(4-fluorophenyl)sulfonyl]-4,5-dimethyl-1-(propan-2-yl)-1H-pyrrol-2-yl}-2-methylpropanamide	N-{3-[(4-fluorophenyl)sulfonyl]-4,5-dimethyl-1-(propan-2-yl)-1H-pyrrol-2-yl}-2-methylpropanamide	分子量：380.5 密度：N/A 沸点：N/A 熔点：N/A	1010905-63-1	C₁₉H₂₅FN₂O₃S
7-methoxy-3-(4-(4-methylpiperazine-1-carbonyl)phenoxy)-4H-chromen-4-one	7-methoxy-3-(4-(4-methylpiperazine-1-carbonyl)phenoxy)-4H-chromen-4-one	分子量：394.4 密度：N/A 沸点：N/A 熔点：N/A	1010897-18-3	C₂₂H₂₂N₂O₅
[4-chloro-2-(1H-tetrazol-1-yl)phenyl]{4-[(4-fluorophenyl)sulfonyl]piperazin-1-yl}methanone	[4-chloro-2-(1H-tetrazol-1-yl)phenyl]{4-[(4-fluorophenyl)sulfonyl]piperazin-1-yl}methanone	分子量：450.9 密度：N/A 沸点：N/A 熔点：N/A	1010897-41-2	C₁₈H₁₆ClFN₆O₃S
N-(4-bromophenyl)-4-chloro-2-(1H-tetrazol-1-yl)benzamide	N-(4-bromophenyl)-4-chloro-2-(1H-tetrazol-1-yl)benzamide	分子量：378.61 密度：N/A 沸点：N/A 熔点：N/A	1010897-45-6	C₁₄H₉BrClN₅O
N-{4,5-dimethyl-3-[(4-methylphenyl)sulfonyl]-1-(propan-2-yl)-1H-pyrrol-2-yl}-2-methylpropanamide	N-{4,5-dimethyl-3-[(4-methylphenyl)sulfonyl]-1-(propan-2-yl)-1H-pyrrol-2-yl}-2-methylpropanamide	分子量：376.5 密度：N/A 沸点：N/A 熔点：N/A	1010905-92-6	C₂₀H₂₈N₂O₃S
N-[(2E)-1,3-benzothiazol-2(3H)-ylidene]-2-[2-(2-fluorophenyl)-1,3-thiazol-5-yl]acetamide	N-[(2E)-1,3-benzothiazol-2(3H)-ylidene]-2-[2-(2-fluorophenyl)-1,3-thiazol-5-yl]acetamide	分子量：369.4 密度：N/A 沸点：N/A 熔点：N/A	1010905-95-9	C₁₈H₁₂FN₃OS₂
3-(4-chlorophenyl)-2-methyl-9-propyl-9,10-dihydrochromeno[8,7-e][1,3]oxazin-4(8H)-one	3-(4-chlorophenyl)-2-methyl-9-propyl-9,10-dihydrochromeno[8,7-e][1,3]oxazin-4(8H)-one	分子量：369.8 密度：N/A 沸点：N/A 熔点：N/A	1010897-75-2	C₂₁H₂₀ClNO₃
ethyl 4-{N-[(4-methoxy-1H-indol-2-yl)carbonyl]glycyl}piperazine-1-carboxylate	ethyl 4-{N-[(4-methoxy-1H-indol-2-yl)carbonyl]glycyl}piperazine-1-carboxylate	分子量：388.4 密度：N/A 沸点：N/A 熔点：N/A	1010906-19-0	C₁₉H₂₄N₄O₅
2-(2-fluoro-6-methoxyphenyl)-4-methyl-N-[2-(4-sulfamoylphenyl)ethyl]-1,3-thiazole-5-carboxamide	2-(2-fluoro-6-methoxyphenyl)-4-methyl-N-[2-(4-sulfamoylphenyl)ethyl]-1,3-thiazole-5-carboxamide	分子量：449.5 密度：N/A 沸点：N/A 熔点：N/A	1010898-09-5	C₂₀H₂₀FN₃O₄S₂
N-(4-bromo-2-methylphenyl)-3-(7-hydroxy-5-methyl[1,2,4]triazolo[1,5-a]pyrimidin-6-yl)propanamide	N-(4-bromo-2-methylphenyl)-3-(7-hydroxy-5-methyl[1,2,4]triazolo[1,5-a]pyrimidin-6-yl)propanamide	分子量：390.23 密度：N/A 沸点：N/A 熔点：N/A	1010906-62-3	C₁₆H₁₆BrN₅O₂
N-[2-oxo-2-(thiomorpholin-4-yl)ethyl]-2-(1H-pyrrol-1-yl)-1,3-benzothiazole-6-carboxamide	N-[2-oxo-2-(thiomorpholin-4-yl)ethyl]-2-(1H-pyrrol-1-yl)-1,3-benzothiazole-6-carboxamide	分子量：386.5 密度：N/A 沸点：N/A 熔点：N/A	1010898-31-3	C₁₈H₁₈N₄O₂S₂
3-fluoro-N-{3-[(4-methoxyphenyl)sulfonyl]-4,5-dimethyl-1-propyl-1H-pyrrol-2-yl}benzamide	3-fluoro-N-{3-[(4-methoxyphenyl)sulfonyl]-4,5-dimethyl-1-propyl-1H-pyrrol-2-yl}benzamide	分子量：444.5 密度：N/A 沸点：N/A 熔点：N/A	1010898-35-7	C₂₃H₂₅FN₂O₄S
N-{2-[(2,1,3-benzothiadiazol-4-ylsulfonyl)amino]ethyl}cyclopropanecarboxamide	N-{2-[(2,1,3-benzothiadiazol-4-ylsulfonyl)amino]ethyl}cyclopropanecarboxamide	分子量：326.4 密度：N/A 沸点：N/A 熔点：N/A	1010898-43-7	C₁₂H₁₄N₄O₃S₂
N-{2-[(2,1,3-benzoxadiazol-4-ylsulfonyl)amino]ethyl}pyridine-2-carboxamide	N-{2-[(2,1,3-benzoxadiazol-4-ylsulfonyl)amino]ethyl}pyridine-2-carboxamide	分子量：347.35 密度：N/A 沸点：N/A 熔点：N/A	1010898-55-1	C₁₄H₁₃N₅O₄S
2-(4-chlorophenoxy)-N-[3-(5,7-dimethyl[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)propyl]acetamide	2-(4-chlorophenoxy)-N-[3-(5,7-dimethyl[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)propyl]acetamide	分子量：373.8 密度：N/A 沸点：N/A 熔点：N/A	1010907-07-9	C₁₈H₂₀ClN₅O₂
(5-Bromofuran-2-yl){4-[(7-chloro-2,1,3-benzoxadiazol-4-yl)sulfonyl]piperazin-1-yl}methanone	(5-Bromofuran-2-yl){4-[(7-chloro-2,1,3-benzoxadiazol-4-yl)sulfonyl]piperazin-1-yl}methanone	分子量：475.7 密度：N/A 沸点：N/A 熔点：N/A	1010898-78-8	C₁₅H₁₂BrClN₄O₅S
N-[3-(5,7-dimethyl[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)propyl]-4-methoxybenzenesulfonamide	N-[3-(5,7-dimethyl[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)propyl]-4-methoxybenzenesulfonamide	分子量：375.4 密度：N/A 沸点：N/A 熔点：N/A	1010898-82-4	C₁₇H₂₁N₅O₃S
[4-(2,1,3-Benzothiadiazol-4-ylsulfonyl)piperazin-1-yl](5-bromofuran-2-yl)methanone	[4-(2,1,3-Benzothiadiazol-4-ylsulfonyl)piperazin-1-yl](5-bromofuran-2-yl)methanone	分子量：457.3 密度：N/A 沸点：N/A 熔点：N/A	1010907-84-2	C₁₅H₁₃BrN₄O₄S₂
5-[2-(5-fluoro-1H-indol-3-yl)ethyl]-2-(4-fluorophenyl)-4-methyl-1H-pyrazolo[4,3-c]pyridine-3,6(2H,5H)-dione	5-[2-(5-fluoro-1H-indol-3-yl)ethyl]-2-(4-fluorophenyl)-4-methyl-1H-pyrazolo[4,3-c]pyridine-3,6(2H,5H)-dione	分子量：420.4 密度：N/A 沸点：N/A 熔点：N/A	1010899-68-9	C₂₃H₁₈F₂N₄O₂
4-fluoro-N-[1-(3-methoxypropyl)-4,5-dimethyl-3-(phenylsulfonyl)-1H-pyrrol-2-yl]benzamide	4-fluoro-N-[1-(3-methoxypropyl)-4,5-dimethyl-3-(phenylsulfonyl)-1H-pyrrol-2-yl]benzamide	分子量：444.5 密度：N/A 沸点：N/A 熔点：N/A	1010907-87-5	C₂₃H₂₅FN₂O₄S
N-(2-(2-chlorophenyl)-4-oxo-4H-chromen-6-yl)-2-methoxyacetamide	N-(2-(2-chlorophenyl)-4-oxo-4H-chromen-6-yl)-2-methoxyacetamide	分子量：343.8 密度：N/A 沸点：N/A 熔点：N/A	1010899-76-9	C₁₈H₁₄ClNO₄
[4-(2,1,3-Benzothiadiazol-4-ylsulfonyl)piperazin-1-yl](thiophen-2-yl)methanone	[4-(2,1,3-Benzothiadiazol-4-ylsulfonyl)piperazin-1-yl](thiophen-2-yl)methanone	分子量：394.5 密度：N/A 沸点：N/A 熔点：N/A	1010899-97-4	C₁₅H₁₄N₄O₃S₃
N-[4,5-dimethyl-3-(phenylsulfonyl)-1-(prop-2-en-1-yl)-1H-pyrrol-2-yl]cyclopropanecarboxamide	N-[4,5-dimethyl-3-(phenylsulfonyl)-1-(prop-2-en-1-yl)-1H-pyrrol-2-yl]cyclopropanecarboxamide	分子量：358.5 密度：N/A 沸点：N/A 熔点：N/A	1010908-11-8	C₁₉H₂₂N₂O₃S
N-{3-[(4-fluorophenyl)sulfonyl]-4,5-dimethyl-1-(propan-2-yl)-1H-pyrrol-2-yl}propanamide	N-{3-[(4-fluorophenyl)sulfonyl]-4,5-dimethyl-1-(propan-2-yl)-1H-pyrrol-2-yl}propanamide	分子量：366.5 密度：N/A 沸点：N/A 熔点：N/A	1010900-11-4	C₁₈H₂₃FN₂O₃S
N-(2-acetamidoethyl)-1H-indole-2-carboxamide	N-(2-acetamidoethyl)-1H-indole-2-carboxamide	分子量：245.28 密度：N/A 沸点：N/A 熔点：N/A	1010900-19-2	C₁₃H₁₅N₃O₂
2-(3,5-dimethyl-7-oxo-7H-furo[3,2-g]chromen-6-yl)-N-(1H-tetrazol-5-yl)acetamide	2-(3,5-dimethyl-7-oxo-7H-furo[3,2-g]chromen-6-yl)-N-(1H-tetrazol-5-yl)acetamide	分子量：339.31 密度：N/A 沸点：N/A 熔点：N/A	1010900-31-8	C₁₆H₁₃N₅O₄
2-((1-(3-chlorophenyl)-5-(p-tolyl)-1H-imidazol-2-yl)thio)-N-methylacetamide	2-((1-(3-chlorophenyl)-5-(p-tolyl)-1H-imidazol-2-yl)thio)-N-methylacetamide	分子量：371.9 密度：N/A 沸点：N/A 熔点：N/A	1206992-29-1	C₁₉H₁₈ClN₃OS
{4-[(7-Chloro-2,1,3-benzoxadiazol-4-yl)sulfonyl]piperazin-1-yl}(2-methoxyphenyl)methanone	{4-[(7-Chloro-2,1,3-benzoxadiazol-4-yl)sulfonyl]piperazin-1-yl}(2-methoxyphenyl)methanone	分子量：436.9 密度：N/A 沸点：N/A 熔点：N/A	1010900-51-2	C₁₈H₁₇ClN₄O₅S
C15H11N7O3S2	C15H11N7O3S2	分子量：401.4 密度：N/A 沸点：N/A 熔点：N/A	1010900-83-0	C₁₅H₁₁N₇O₃S₂
cyclopropyl(8-fluoro-1,3,4,5-tetrahydro-2H-pyrido[4,3-b]indol-2-yl)methanone	cyclopropyl(8-fluoro-1,3,4,5-tetrahydro-2H-pyrido[4,3-b]indol-2-yl)methanone	分子量：258.29 密度：N/A 沸点：N/A 熔点：N/A	1010924-72-7	C₁₅H₁₅FN₂O
3-{[4-(4-chlorophenyl)-4-hydroxypiperidino]carbonyl}-1-ethyl-7-methyl[1,8]naphthyridin-4(1H)-one	3-{[4-(4-chlorophenyl)-4-hydroxypiperidino]carbonyl}-1-ethyl-7-methyl[1,8]naphthyridin-4(1H)-one	分子量：425.9 密度：N/A 沸点：N/A 熔点：N/A	1010924-76-1	C₂₃H₂₄ClN₃O₃
2-chloro-N-(2-chlorobenzyl)-5-(1H-tetrazol-1-yl)benzamide	2-chloro-N-(2-chlorobenzyl)-5-(1H-tetrazol-1-yl)benzamide	分子量：348.2 密度：N/A 沸点：N/A 熔点：N/A	896911-39-0	C₁₅H₁₁Cl₂N₅O
3-(7-methoxy-4-methyl-2-oxo-2H-chromen-6-yl)-N-[4-(1H-1,2,4-triazol-1-ylmethyl)phenyl]propanamide	3-(7-methoxy-4-methyl-2-oxo-2H-chromen-6-yl)-N-[4-(1H-1,2,4-triazol-1-ylmethyl)phenyl]propanamide	分子量：418.4 密度：N/A 沸点：N/A 熔点：N/A	1010925-06-0	C₂₃H₂₂N₄O₄
3-(3,4-dimethoxyphenyl)-9-(3-hydroxypropyl)-9,10-dihydrochromeno[8,7-e][1,3]oxazin-4(8H)-one	3-(3,4-dimethoxyphenyl)-9-(3-hydroxypropyl)-9,10-dihydrochromeno[8,7-e][1,3]oxazin-4(8H)-one	分子量：397.4 密度：N/A 沸点：N/A 熔点：N/A	1010900-13-6	C₂₂H₂₃NO₆