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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 CAS号
(5E)-5-(2-fluorobenzylidene)-2-(4-methylphenyl)[1,3]thiazolo[3,2-b][1,2,4]triazol-6(5H)-one 606957-21-5
(5E)-5-(3-bromobenzylidene)-2-(4-methylphenyl)[1,3]thiazolo[3,2-b][1,2,4]triazol-6(5H)-one 606956-49-4
(5E)-5-(3-methoxybenzylidene)-2-(4-methylphenyl)[1,3]thiazolo[3,2-b][1,2,4]triazol-6(5H)-one 606953-60-0
(5E)-5-[2-(Allyloxy)benzylidene]-2-(4-methylphenyl)[1,3]thiazolo[3,2-B][1,2,4]triazol-6(5H)-one 606959-55-1
(5E)-5-(4-Isobutoxy-3-methoxybenzylidene)-2-(4-methylphenyl)[1,3]thiazolo[3,2-B][1,2,4]triazol-6(5H)-one 606963-14-8
(5Z)-3-Sec-butyl-5-{[3-(4-methoxyphenyl)-1-phenyl-1H-pyrazol-4-YL]methylene}-2-thioxo-1,3-thiazolidin-4-one 623933-02-8
(5Z)-5-({3-[4-(allyloxy)phenyl]-1-phenyl-1H-pyrazol-4-yl}methylene)-3-sec-butyl-2-thioxo-1,3-thiazolidin-4-one 623933-03-9
(5Z)-3-sec-butyl-5-{[3-(4-isopropoxyphenyl)-1-phenyl-1H-pyrazol-4-yl]methylene}-2-thioxo-1,3-thiazolidin-4-one 623933-04-0
(5Z)-3-sec-butyl-5-({3-[4-(isopentyloxy)phenyl]-1-phenyl-1H-pyrazol-4-yl}methylene)-2-thioxo-1,3-thiazolidin-4-one 623933-05-1
4-{4-[(Z)-(3-Sec-butyl-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene)methyl]-1-phenyl-1H-pyrazol-3-YL}-N,N-dimethylbenzenesulfonamide 623933-06-2
(5Z)-5-{[3-(4-ethoxy-2-methylphenyl)-1-phenyl-1H-pyrazol-4-yl]methylene}-3-(2-ethylhexyl)-2-thioxo-1,3-thiazolidin-4-one 623933-08-4
(5Z)-3-Sec-butyl-5-[(3-mesityl-1-phenyl-1H-pyrazol-4-YL)methylene]-2-thioxo-1,3-thiazolidin-4-one 623933-12-0
(5E)-5-(3,4-diethoxybenzylidene)-2-(4-ethoxyphenyl)[1,3]thiazolo[3,2-b][1,2,4]triazol-6(5H)-one 606956-54-1
(5E)-2-(4-isobutoxyphenyl)-5-[(2-methyl-2H-chromen-3-yl)methylene][1,3]thiazolo[3,2-b][1,2,4]triazol-6(5H)-one 618075-63-1
5-(5-Bromo-1-ethyl-2-oxoindolin-3-ylidene)-2-(4-propoxyphenyl)thiazolo[3,2-b][1,2,4]triazol-6(5H)-one 606963-49-9
(5Z)-5-{[3-(3-Bromo-4-methoxyphenyl)-1-phenyl-1H-pyrazol-4-YL]methylene}-3-sec-butyl-2-thioxo-1,3-thiazolidin-4-one 623933-23-3
(5Z)-3-(2-ethylhexyl)-5-{[3-(4-methoxy-2-methylphenyl)-1-phenyl-1H-pyrazol-4-yl]methylene}-2-thioxo-1,3-thiazolidin-4-one 623933-25-5
(5Z)-5-({3-[4-(Allyloxy)phenyl]-1-phenyl-1H-pyrazol-4-YL}methylene)-3-(4-methoxybenzyl)-2-thioxo-1,3-thiazolidin-4-one 623934-78-1
(5Z)-5-{[3-(4-Isobutoxy-3-methylphenyl)-1-phenyl-1H-pyrazol-4-YL]methylene}-3-pentyl-2-thioxo-1,3-thiazolidin-4-one 623934-85-0
(5Z)-3-Hexyl-5-{[3-(4-isobutoxy-3-methylphenyl)-1-phenyl-1H-pyrazol-4-YL]methylene}-2-thioxo-1,3-thiazolidin-4-one 623934-91-8
5-(4-(benzyloxy)phenyl)-4-(3-fluoro-4-methylbenzoyl)-1-(furan-2-ylmethyl)-3-hydroxy-1H-pyrrol-2(5H)-one 865593-11-9
5-(4-ethoxyphenyl)-4-(3-fluoro-4-methylbenzoyl)-1-(2-furylmethyl)-3-hydroxy-1,5-dihydro-2H-pyrrol-2-one 865593-20-0
4-[(3-fluoro-4-methylphenyl)carbonyl]-3-hydroxy-5-(3-methoxyphenyl)-1-(pyridin-4-ylmethyl)-1,5-dihydro-2H-pyrrol-2-one 865593-24-4
(5E)-5-(3-chlorobenzylidene)-2-phenyl[1,3]thiazolo[3,2-b][1,2,4]triazol-6(5H)-one 606955-76-4
ethyl (2Z)-5-(2-methoxyphenyl)-7-methyl-3-oxo-2-(2-oxo-1-propyl-1,2-dihydro-3H-indol-3-ylidene)-2,3-dihydro-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate 371132-72-8
Ethyl (2Z)-2-(1-ethyl-2-oxo-1,2-dihydro-3H-indol-3-ylidene)-5-(2-methoxyphenyl)-7-methyl-3-oxo-2,3-dihydro-5H-[1,3]thiazolo[3,2-A]pyrimidine-6-carboxylate 369401-94-5
2-Methoxyethyl (2Z)-7-methyl-3-oxo-2-(2-oxo-1-propyl-1,2-dihydro-3H-indol-3-ylidene)-5-(2-thienyl)-2,3-dihydro-5H-[1,3]thiazolo[3,2-A]pyrimidine-6-carboxylate 797014-90-5
(5E)-3-(1,1-dioxidotetrahydrothiophen-3-yl)-5-[3-methoxy-4-(octyloxy)benzylidene]-2-thioxo-1,3-thiazolidin-4-one 797795-86-9
3-(3-(benzylcarbamoyl)-2-imino-5-oxo-2,5-dihydro-1H-dipyrido[1,2-a:2',3'-d]pyrimidin-1-yl)propyl acetate 867136-43-4
(4Z)-5-(3,4-dichlorophenyl)-4-[hydroxy(phenyl)methylidene]-1-(5-methyl-1,3,4-thiadiazol-2-yl)pyrrolidine-2,3-dione 371142-65-3
(5Z)-5-{[3-(3-chloro-4-ethoxyphenyl)-1-phenyl-1H-pyrazol-4-yl]methylidene}-3-hexyl-2-thioxo-1,3-thiazolidin-4-one 956773-71-0
N-(3,5-Dimethoxyphenyl)-1-ethyl-5-methyl-1H-pyrazole-4-methanamine 1006449-77-9
2-(3,5-dimethylpiperidin-1-yl)-3-{(E)-[3-(3-methoxypropyl)-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}-9-methyl-4H-pyrido[1,2-a]pyrimidin-4-one 797765-33-4
[(1,5-dimethyl-1H-pyrazol-4-yl)methyl](2-phenylethyl)amine 1856042-17-5
5-chloro-N-(2-ethoxyphenyl)-2-(propylsulfanyl)pyrimidine-4-carboxamide 879928-54-8
3-butoxy-N-(1,1-dioxidotetrahydrothiophen-3-yl)-N-[(5-methylfuran-2-yl)methyl]benzamide 879928-73-1
N-(1,1-dioxidotetrahydrothiophen-3-yl)-3,5-dimethyl-N-[(5-methylfuran-2-yl)methyl]-1-benzofuran-2-carboxamide 879928-79-7
4'-hydroxy-1'-(2-methoxyethyl)-3'-{[3-methyl-4-(prop-2-en-1-yloxy)phenyl]carbonyl}-1-propylspiro[indole-3,2'-pyrrole]-2,5'(1H,1'H)-dione 879928-85-5
N-(1,1-dioxidotetrahydrothiophen-3-yl)-N-[(5-methylfuran-2-yl)methyl]-4-(propan-2-yloxy)benzamide 879929-02-9
N-(1,1-dioxidotetrahydrothiophen-3-yl)-N-[(3-methylthiophen-2-yl)methyl]-4-propoxybenzamide 879929-08-5
N-(1,1-dioxidotetrahydrothiophen-3-yl)-N-[(3-methylthiophen-2-yl)methyl]-2-oxo-2H-chromene-3-carboxamide 881444-42-4
2-(4-bromophenoxy)-N-(1,1-dioxidotetrahydrothiophen-3-yl)-N-[(5-methylfuran-2-yl)methyl]acetamide 879929-44-9
2-(2-chlorophenoxy)-N-(1,1-dioxidotetrahydrothiophen-3-yl)-N-[(5-methylfuran-2-yl)methyl]acetamide 879929-50-7
3-chloro-N-(1,1-dioxidotetrahydrothiophen-3-yl)-N-[(3-methylthiophen-2-yl)methyl]benzamide 879929-62-1
N-(1,1-dioxidotetrahydrothiophen-3-yl)-N-[(3-methylthiophen-2-yl)methyl]-4-(propan-2-yloxy)benzamide 879929-67-6
N-(1,1-dioxidotetrahydrothiophen-3-yl)-N-[(3-methylthiophen-2-yl)methyl]-4-(prop-2-en-1-yloxy)benzamide 879929-73-4
2-(4-chloro-3,5-dimethylphenoxy)-N-(1,1-dioxidotetrahydrothiophen-3-yl)-N-[(5-methylfuran-2-yl)methyl]acetamide 879929-85-8
4-butoxy-N-(1,1-dioxidotetrahydrothiophen-3-yl)-N-[(3-methylthiophen-2-yl)methyl]benzamide 879929-91-6
N-(tert-butyl)-4-(piperidin-4-ylmethyl)benzamide hydrochloride 333987-78-3
2-amino-N,4-dimethylpentanamide 98433-16-0