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
(3,4-dimethoxyphenyl)[4-(4-fluorophenyl)-1,1-dioxido-4H-1,4-benzothiazin-2-yl]methanone	(3,4-dimethoxyphenyl)[4-(4-fluorophenyl)-1,1-dioxido-4H-1,4-benzothiazin-2-yl]methanone	分子量：439.5 密度：N/A 沸点：N/A 熔点：N/A	1114658-81-9	C₂₃H₁₈FNO₅S
[4-(3,4-difluorophenyl)-1,1-dioxido-4H-1,4-benzothiazin-2-yl](3,4-dimethoxyphenyl)methanone	[4-(3,4-difluorophenyl)-1,1-dioxido-4H-1,4-benzothiazin-2-yl](3,4-dimethoxyphenyl)methanone	分子量：457.4 密度：N/A 沸点：N/A 熔点：N/A	1114872-60-4	C₂₃H₁₇F₂NO₅S
[4-(3-chlorophenyl)-1,1-dioxido-4H-1,4-benzothiazin-2-yl](3,4-dimethoxyphenyl)methanone	[4-(3-chlorophenyl)-1,1-dioxido-4H-1,4-benzothiazin-2-yl](3,4-dimethoxyphenyl)methanone	分子量：455.9 密度：N/A 沸点：N/A 熔点：N/A	1114853-31-4	C₂₃H₁₈ClNO₅S
[4-(4-chlorophenyl)-1,1-dioxido-4H-1,4-benzothiazin-2-yl](3,4-dimethoxyphenyl)methanone	[4-(4-chlorophenyl)-1,1-dioxido-4H-1,4-benzothiazin-2-yl](3,4-dimethoxyphenyl)methanone	分子量：455.9 密度：N/A 沸点：N/A 熔点：N/A	1114652-43-5	C₂₃H₁₈ClNO₅S
N-(benzo[d][1,3]dioxol-5-yl)-2-(4-(1-(p-tolyl)-1H-imidazol-2-yl)piperazin-1-yl)acetamide	N-(benzo[d][1,3]dioxol-5-yl)-2-(4-(1-(p-tolyl)-1H-imidazol-2-yl)piperazin-1-yl)acetamide	分子量：419.5 密度：N/A 沸点：N/A 熔点：N/A	1021105-61-2	C₂₃H₂₅N₅O₃
[4-(3,4-dichlorophenyl)-1,1-dioxido-4H-1,4-benzothiazin-2-yl](3,4-dimethoxyphenyl)methanone	[4-(3,4-dichlorophenyl)-1,1-dioxido-4H-1,4-benzothiazin-2-yl](3,4-dimethoxyphenyl)methanone	分子量：490.4 密度：N/A 沸点：N/A 熔点：N/A	1114658-88-6	C₂₃H₁₇Cl₂NO₅S
2-(4-(1-(2-fluorophenyl)-1H-imidazol-2-yl)piperazin-1-yl)-1-(indolin-1-yl)ethanone	2-(4-(1-(2-fluorophenyl)-1H-imidazol-2-yl)piperazin-1-yl)-1-(indolin-1-yl)ethanone	分子量：405.5 密度：N/A 沸点：N/A 熔点：N/A	1021036-90-7	C₂₃H₂₄FN₅O
(3,4-dimethoxyphenyl)[4-(3-fluoro-4-methylphenyl)-1,1-dioxido-4H-1,4-benzothiazin-2-yl]methanone	(3,4-dimethoxyphenyl)[4-(3-fluoro-4-methylphenyl)-1,1-dioxido-4H-1,4-benzothiazin-2-yl]methanone	分子量：453.5 密度：N/A 沸点：N/A 熔点：N/A	1114872-62-6	C₂₄H₂₀FNO₅S
[4-(3-chloro-4-methylphenyl)-1,1-dioxido-4H-1,4-benzothiazin-2-yl](3,4-dimethoxyphenyl)methanone	[4-(3-chloro-4-methylphenyl)-1,1-dioxido-4H-1,4-benzothiazin-2-yl](3,4-dimethoxyphenyl)methanone	分子量：469.9 密度：N/A 沸点：N/A 熔点：N/A	1114853-33-6	C₂₄H₂₀ClNO₅S
(3,4-dimethoxyphenyl)(6-fluoro-1,1-dioxido-4-phenyl-4H-1,4-benzothiazin-2-yl)methanone	(3,4-dimethoxyphenyl)(6-fluoro-1,1-dioxido-4-phenyl-4H-1,4-benzothiazin-2-yl)methanone	分子量：439.5 密度：N/A 沸点：N/A 熔点：N/A	1114652-52-6	C₂₃H₁₈FNO₅S
2-(4-(1-(2-fluorophenyl)-1H-imidazol-2-yl)piperazin-1-yl)-N-phenylacetamide	2-(4-(1-(2-fluorophenyl)-1H-imidazol-2-yl)piperazin-1-yl)-N-phenylacetamide	分子量：379.4 密度：N/A 沸点：N/A 熔点：N/A	1021132-39-7	C₂₁H₂₂FN₅O
(3,4-dimethoxyphenyl)[6-fluoro-4-(3-methylphenyl)-1,1-dioxido-4H-1,4-benzothiazin-2-yl]methanone	(3,4-dimethoxyphenyl)[6-fluoro-4-(3-methylphenyl)-1,1-dioxido-4H-1,4-benzothiazin-2-yl]methanone	分子量：453.5 密度：N/A 沸点：N/A 熔点：N/A	1114659-01-6	C₂₄H₂₀FNO₅S
(3,4-dimethoxyphenyl)[4-(3,5-dimethylphenyl)-6-fluoro-1,1-dioxido-4H-1,4-benzothiazin-2-yl]methanone	(3,4-dimethoxyphenyl)[4-(3,5-dimethylphenyl)-6-fluoro-1,1-dioxido-4H-1,4-benzothiazin-2-yl]methanone	分子量：467.5 密度：N/A 沸点：N/A 熔点：N/A	1114853-35-8	C₂₅H₂₂FNO₅S
(3,4-dimethoxyphenyl)[6-fluoro-4-(4-isopropylphenyl)-1,1-dioxido-4H-1,4-benzothiazin-2-yl]methanone	(3,4-dimethoxyphenyl)[6-fluoro-4-(4-isopropylphenyl)-1,1-dioxido-4H-1,4-benzothiazin-2-yl]methanone	分子量：481.5 密度：N/A 沸点：N/A 熔点：N/A	1114652-57-1	C₂₆H₂₄FNO₅S
5-((2-chloro-6-fluorobenzyl)thio)-3-(4-ethoxyphenyl)-6-methyl-2-thioxo-2,3-dihydrothiazolo[4,5-d]pyrimidin-7(6H)-one	5-((2-chloro-6-fluorobenzyl)thio)-3-(4-ethoxyphenyl)-6-methyl-2-thioxo-2,3-dihydrothiazolo[4,5-d]pyrimidin-7(6H)-one	分子量：494.0 密度：N/A 沸点：N/A 熔点：N/A	1114604-31-7	C₂₁H₁₇ClFN₃O₂S₃
3-(4-ethoxyphenyl)-6-methyl-5-((4-methylbenzyl)thio)-2-thioxo-2,3-dihydrothiazolo[4,5-d]pyrimidin-7(6H)-one	3-(4-ethoxyphenyl)-6-methyl-5-((4-methylbenzyl)thio)-2-thioxo-2,3-dihydrothiazolo[4,5-d]pyrimidin-7(6H)-one	分子量：455.6 密度：N/A 沸点：N/A 熔点：N/A	1114604-35-1	C₂₂H₂₁N₃O₂S₃
7-tert-butyl-2-{3-[4-(2,3-dimethylphenyl)piperazin-1-yl]-3-oxopropyl}-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidin-4(3H)-one	7-tert-butyl-2-{3-[4-(2,3-dimethylphenyl)piperazin-1-yl]-3-oxopropyl}-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidin-4(3H)-one	分子量：506.7 密度：N/A 沸点：N/A 熔点：N/A	1029738-33-7	C₂₉H₃₈N₄O₂S
N1-cyclopropyl-N2-(2-(3,4-dihydroisoquinolin-2(1H)-yl)-2-(1-methyl-1H-pyrrol-2-yl)ethyl)oxalamide	N1-cyclopropyl-N2-(2-(3,4-dihydroisoquinolin-2(1H)-yl)-2-(1-methyl-1H-pyrrol-2-yl)ethyl)oxalamide	分子量：366.5 密度：N/A 沸点：N/A 熔点：N/A	1049351-95-2	C₂₁H₂₆N₄O₂
N1-(2-(3,4-dihydroisoquinolin-2(1H)-yl)-2-(1-methyl-1H-pyrrol-2-yl)ethyl)-N2-isobutyloxalamide	N1-(2-(3,4-dihydroisoquinolin-2(1H)-yl)-2-(1-methyl-1H-pyrrol-2-yl)ethyl)-N2-isobutyloxalamide	分子量：382.5 密度：N/A 沸点：N/A 熔点：N/A	1049455-20-0	C₂₂H₃₀N₄O₂
N1-(2-(3,4-dihydroisoquinolin-2(1H)-yl)-2-(1-methyl-1H-pyrrol-2-yl)ethyl)-N2-(2-ethoxyphenyl)oxalamide	N1-(2-(3,4-dihydroisoquinolin-2(1H)-yl)-2-(1-methyl-1H-pyrrol-2-yl)ethyl)-N2-(2-ethoxyphenyl)oxalamide	分子量：446.5 密度：N/A 沸点：N/A 熔点：N/A	1049455-41-5	C₂₆H₃₀N₄O₃
(4-(5-Chloro-4-methylbenzo[d]thiazol-2-yl)piperazin-1-yl)(3-phenoxyphenyl)methanone	(4-(5-Chloro-4-methylbenzo[d]thiazol-2-yl)piperazin-1-yl)(3-phenoxyphenyl)methanone	分子量：464.0 密度：N/A 沸点：N/A 熔点：N/A	922664-81-1	C₂₅H₂₂ClN₃O₂S
1-(4-(5-Chloro-4-methylbenzo[d]thiazol-2-yl)piperazin-1-yl)-2-(naphthalen-1-yl)ethanone	1-(4-(5-Chloro-4-methylbenzo[d]thiazol-2-yl)piperazin-1-yl)-2-(naphthalen-1-yl)ethanone	分子量：436.0 密度：N/A 沸点：N/A 熔点：N/A	922664-86-6	C₂₄H₂₂ClN₃OS
(4-(5-Chloro-4-methylbenzo[d]thiazol-2-yl)piperazin-1-yl)(2-phenoxyphenyl)methanone	(4-(5-Chloro-4-methylbenzo[d]thiazol-2-yl)piperazin-1-yl)(2-phenoxyphenyl)methanone	分子量：464.0 密度：N/A 沸点：N/A 熔点：N/A	922636-34-8	C₂₅H₂₂ClN₃O₂S
2-Cyclopropyl-5-(1-(3-fluorobenzyl)piperidin-4-yl)-1,3,4-oxadiazole	2-Cyclopropyl-5-(1-(3-fluorobenzyl)piperidin-4-yl)-1,3,4-oxadiazole	分子量：301.36 密度：N/A 沸点：N/A 熔点：N/A	1251610-31-7	C₁₇H₂₀FN₃O
N1-(2-(1-methyl-1H-pyrrol-2-yl)-2-morpholinoethyl)-N2-(5-methylisoxazol-3-yl)oxalamide	N1-(2-(1-methyl-1H-pyrrol-2-yl)-2-morpholinoethyl)-N2-(5-methylisoxazol-3-yl)oxalamide	分子量：361.4 密度：N/A 沸点：N/A 熔点：N/A	1049398-01-7	C₁₇H₂₃N₅O₄
2-(4-(5-cyclopropyl-1,3,4-oxadiazol-2-yl)piperidin-1-yl)-N-((tetrahydrofuran-2-yl)methyl)acetamide	2-(4-(5-cyclopropyl-1,3,4-oxadiazol-2-yl)piperidin-1-yl)-N-((tetrahydrofuran-2-yl)methyl)acetamide	分子量：334.4 密度：N/A 沸点：N/A 熔点：N/A	1251696-37-3	C₁₇H₂₆N₄O₃
1-Propanone, 1-(3,4-difluorophenyl)-2-[(1,2-dimethylpropyl)methylamino]-	1-Propanone, 1-(3,4-difluorophenyl)-2-[(1,2-dimethylpropyl)methylamino]-	分子量：269.33 密度：N/A 沸点：N/A 熔点：N/A	1216072-90-0	C₁₅H₂₁F₂NO
1-(3,5-Dimethoxyphenyl)pyrrolidin-3-amine	1-(3,5-Dimethoxyphenyl)pyrrolidin-3-amine	分子量：222.28 密度：N/A 沸点：N/A 熔点：N/A	1096807-11-2	C₁₂H₁₈N₂O₂
1-[4-(1-Benzothiophene-2-carbonyl)piperazin-1-yl]ethan-1-one	1-[4-(1-Benzothiophene-2-carbonyl)piperazin-1-yl]ethan-1-one	分子量：288.4 密度：N/A 沸点：N/A 熔点：N/A	1223532-76-0	C₁₅H₁₆N₂O₂S
N-(5-(3-(methylthio)phenyl)-1,3,4-oxadiazol-2-yl)-2-naphthamide	N-(5-(3-(methylthio)phenyl)-1,3,4-oxadiazol-2-yl)-2-naphthamide	分子量：361.4 密度：N/A 沸点：N/A 熔点：N/A	922562-59-2	C₂₀H₁₅N₃O₂S
N-(5-(4-(methylthio)phenyl)-1,3,4-oxadiazol-2-yl)-4-(morpholinosulfonyl)benzamide	N-(5-(4-(methylthio)phenyl)-1,3,4-oxadiazol-2-yl)-4-(morpholinosulfonyl)benzamide	分子量：460.5 密度：N/A 沸点：N/A 熔点：N/A	886917-04-0	C₂₀H₂₀N₄O₅S₂
4-((4-methylpiperidin-1-yl)sulfonyl)-N-(5-(4-(methylthio)phenyl)-1,3,4-oxadiazol-2-yl)benzamide	4-((4-methylpiperidin-1-yl)sulfonyl)-N-(5-(4-(methylthio)phenyl)-1,3,4-oxadiazol-2-yl)benzamide	分子量：472.6 密度：N/A 沸点：N/A 熔点：N/A	886918-59-8	C₂₂H₂₄N₄O₄S₂
3-bromo-N-(5-(3-(methylsulfonyl)phenyl)-1,3,4-oxadiazol-2-yl)benzamide	3-bromo-N-(5-(3-(methylsulfonyl)phenyl)-1,3,4-oxadiazol-2-yl)benzamide	分子量：422.3 密度：N/A 沸点：N/A 熔点：N/A	886927-69-1	C₁₆H₁₂BrN₃O₄S
2-bromo-N-(5-(3-(methylsulfonyl)phenyl)-1,3,4-oxadiazol-2-yl)benzamide	2-bromo-N-(5-(3-(methylsulfonyl)phenyl)-1,3,4-oxadiazol-2-yl)benzamide	分子量：422.3 密度：N/A 沸点：N/A 熔点：N/A	886927-75-9	C₁₆H₁₂BrN₃O₄S
4-benzoyl-N-(5-(3-(methylsulfonyl)phenyl)-1,3,4-oxadiazol-2-yl)benzamide	4-benzoyl-N-(5-(3-(methylsulfonyl)phenyl)-1,3,4-oxadiazol-2-yl)benzamide	分子量：447.5 密度：N/A 沸点：N/A 熔点：N/A	886928-17-2	C₂₃H₁₇N₃O₅S
N-(5-(3-(methylsulfonyl)phenyl)-1,3,4-oxadiazol-2-yl)-4-(morpholinosulfonyl)benzamide	N-(5-(3-(methylsulfonyl)phenyl)-1,3,4-oxadiazol-2-yl)-4-(morpholinosulfonyl)benzamide	分子量：492.5 密度：N/A 沸点：N/A 熔点：N/A	886928-41-2	C₂₀H₂₀N₄O₇S₂
4-(N,N-dimethylsulfamoyl)-N-(5-(3-(methylsulfonyl)phenyl)-1,3,4-oxadiazol-2-yl)benzamide	4-(N,N-dimethylsulfamoyl)-N-(5-(3-(methylsulfonyl)phenyl)-1,3,4-oxadiazol-2-yl)benzamide	分子量：450.5 密度：N/A 沸点：N/A 熔点：N/A	886928-53-6	C₁₈H₁₈N₄O₆S₂
4-{[4-(Methylsulfonyl)piperazin-1-yl]carbonyl}-1-phenylpyrrolidin-2-one	4-{[4-(Methylsulfonyl)piperazin-1-yl]carbonyl}-1-phenylpyrrolidin-2-one	分子量：351.4 密度：N/A 沸点：N/A 熔点：N/A	1010880-05-3	C₁₆H₂₁N₃O₄S
2-iodo-N-(5-(3-(methylsulfonyl)phenyl)-1,3,4-oxadiazol-2-yl)benzamide	2-iodo-N-(5-(3-(methylsulfonyl)phenyl)-1,3,4-oxadiazol-2-yl)benzamide	分子量：469.3 密度：N/A 沸点：N/A 熔点：N/A	886907-16-0	C₁₆H₁₂IN₃O₄S
N-(3-(benzo[d]thiazol-2-yl)-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)-2-(ethylthio)benzamide	N-(3-(benzo[d]thiazol-2-yl)-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)-2-(ethylthio)benzamide	分子量：450.6 密度：N/A 沸点：N/A 熔点：N/A	922641-93-8	C₂₄H₂₂N₂OS₃
2-(ethylthio)-N-(4-(5,6,7,8-tetrahydronaphthalen-2-yl)thiazol-2-yl)benzamide	2-(ethylthio)-N-(4-(5,6,7,8-tetrahydronaphthalen-2-yl)thiazol-2-yl)benzamide	分子量：394.6 密度：N/A 沸点：N/A 熔点：N/A	922816-41-9	C₂₂H₂₂N₂OS₂
4-Tert-butoxycarbonylamino-4-(4-chloro-benzylcarbamoyl)-piperidine-1-carboxylic acid tert-butyl ester	4-Tert-butoxycarbonylamino-4-(4-chloro-benzylcarbamoyl)-piperidine-1-carboxylic acid tert-butyl ester	分子量：468.0 密度：N/A 沸点：N/A 熔点：N/A	885500-58-3	C₂₃H₃₄ClN₃O₅
(2R)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-[(2-hydroxyethyl)disulfanyl]propanoic acid	(2R)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-[(2-hydroxyethyl)disulfanyl]propanoic acid	分子量：419.5 密度：N/A 沸点：N/A 熔点：N/A	1208242-15-2	C₂₀H₂₁NO₅S₂
4-Amino-N-(4-chlorobenzyl)piperidine-4-carboxamide	4-Amino-N-(4-chlorobenzyl)piperidine-4-carboxamide	分子量：267.75 密度：N/A 沸点：N/A 熔点：N/A	885653-47-4	C₁₃H₁₈ClN₃O
N-(2,6-difluorobenzyl)-2-(7-methyl-2-oxo-2H-chromen-4-yl)acetamide	N-(2,6-difluorobenzyl)-2-(7-methyl-2-oxo-2H-chromen-4-yl)acetamide	分子量：343.3 密度：N/A 沸点：N/A 熔点：N/A	919760-72-8	C₁₉H₁₅F₂NO₃
1-(3-Chloro-2-methylphenyl)pyrrolidin-3-one	1-(3-Chloro-2-methylphenyl)pyrrolidin-3-one	分子量：209.67 密度：N/A 沸点：N/A 熔点：N/A	1096851-20-5	C₁₁H₁₂ClNO
1-(4-Isopropylphenyl)-n-methylpiperidin-4-amine	1-(4-Isopropylphenyl)-n-methylpiperidin-4-amine	分子量：232.36 密度：N/A 沸点：N/A 熔点：N/A	1096861-11-8	C₁₅H₂₄N₂
1-Isopropyl-4-(4-ethyl-phenyl)-6-methoxy-1H-quinazolin-2-one	1-Isopropyl-4-(4-ethyl-phenyl)-6-methoxy-1H-quinazolin-2-one	分子量：322.4 密度：N/A 沸点：N/A 熔点：N/A	478963-64-3	C₂₀H₂₂N₂O₂
2,4,6(3H)-Pteridinetrione, 1,5,7,8-tetrahydro-1,3-dimethyl-7-phenyl-	2,4,6(3H)-Pteridinetrione, 1,5,7,8-tetrahydro-1,3-dimethyl-7-phenyl-	分子量：286.29 密度：N/A 沸点：N/A 熔点：N/A	928336-42-9	C₁₄H₁₄N₄O₃
1-Ethyl 4-[(1-carboxypropyl)amino]-4-oxobutanoate	1-Ethyl 4-[(1-carboxypropyl)amino]-4-oxobutanoate	分子量：231.25 密度：N/A 沸点：N/A 熔点：N/A	1218072-72-0	C₁₀H₁₇NO₅