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
4,6-Dimethyl-2-(((2-oxo-2,6,7,8-tetrahydrocyclopenta[g]chromen-4-yl)methyl)thio)nicotinonitrile	4,6-Dimethyl-2-(((2-oxo-2,6,7,8-tetrahydrocyclopenta[g]chromen-4-yl)methyl)thio)nicotinonitrile	分子量：362.4 密度：N/A 沸点：N/A 熔点：N/A	872193-05-0	C₂₁H₁₈N₂O₂S
N-(5-Amino-2-methoxyphenyl)-2-ethoxybenzamide	N-(5-Amino-2-methoxyphenyl)-2-ethoxybenzamide	分子量：286.33 密度：N/A 沸点：N/A 熔点：N/A	954580-45-1	C₁₆H₁₈N₂O₃
Acetamide, N-[4-(2-phenyldiazenyl)phenyl]-2-[(1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl)oxy]-	Acetamide, N-[4-(2-phenyldiazenyl)phenyl]-2-[(1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl)oxy]-	分子量：449.5 密度：N/A 沸点：N/A 熔点：N/A	868233-48-1	C₂₅H₁₉N₇O₂
N-(3-((4-Chlorophenyl)amino)-3-oxo-1-phenylpropyl)benzamide	N-(3-((4-Chlorophenyl)amino)-3-oxo-1-phenylpropyl)benzamide	分子量：378.8 密度：N/A 沸点：N/A 熔点：N/A	868268-60-4	C₂₂H₁₉ClN₂O₂
5,6-Dichloro-N-[4-(pyridin-3-YL)-1,3-thiazol-2-YL]pyridine-3-carboxamide	5,6-Dichloro-N-[4-(pyridin-3-YL)-1,3-thiazol-2-YL]pyridine-3-carboxamide	分子量：351.2 密度：N/A 沸点：N/A 熔点：N/A	868268-94-4	C₁₄H₈Cl₂N₄OS
Acetamide, 2-[(5,7-dichloro-2-methyl-8-quinolinyl)oxy]-N-[4-(2-phenyldiazenyl)phenyl]-	Acetamide, 2-[(5,7-dichloro-2-methyl-8-quinolinyl)oxy]-N-[4-(2-phenyldiazenyl)phenyl]-	分子量：465.3 密度：N/A 沸点：N/A 熔点：N/A	869355-99-7	C₂₄H₁₈Cl₂N₄O₂
1-methyl-2-(2-phenylethenesulfonyl)-1H,2H,3H,4H-pyrrolo[1,2-a]pyrazine	1-methyl-2-(2-phenylethenesulfonyl)-1H,2H,3H,4H-pyrrolo[1,2-a]pyrazine	分子量：302.4 密度：N/A 沸点：N/A 熔点：N/A	930066-02-7	C₁₆H₁₈N₂O₂S
1-{[4-(4-Ethylphenyl)-1,3-thiazol-2-yl]carbamoyl}ethyl 2-chloropyridine-3-carboxylate	1-{[4-(4-Ethylphenyl)-1,3-thiazol-2-yl]carbamoyl}ethyl 2-chloropyridine-3-carboxylate	分子量：415.9 密度：N/A 沸点：N/A 熔点：N/A	869356-82-1	C₂₀H₁₈ClN₃O₃S
3-[5-(2-bromophenyl)furan-2-yl]-2-cyano-N-(1-methoxypropan-2-yl)prop-2-enamide	3-[5-(2-bromophenyl)furan-2-yl]-2-cyano-N-(1-methoxypropan-2-yl)prop-2-enamide	分子量：389.2 密度：N/A 沸点：N/A 熔点：N/A	869351-31-5	C₁₈H₁₇BrN₂O₃
2-Methyl-5-(morpholine-4-sulfonyl)-N-[4-(pyridin-4-YL)-1,3-thiazol-2-YL]benzamide	2-Methyl-5-(morpholine-4-sulfonyl)-N-[4-(pyridin-4-YL)-1,3-thiazol-2-YL]benzamide	分子量：444.5 密度：N/A 沸点：N/A 熔点：N/A	869633-94-3	C₂₀H₂₀N₄O₄S₂
8-(4-Chlorophenyl)-13-methyl-5-oxa-2,11,13-triazatricyclo[7.4.0.0^{3,7}]trideca-1(9),3(7)-diene-6,10,12-trione	8-(4-Chlorophenyl)-13-methyl-5-oxa-2,11,13-triazatricyclo[7.4.0.0^{3,7}]trideca-1(9),3(7)-diene-6,10,12-trione	分子量：345.73 密度：N/A 沸点：N/A 熔点：N/A	863668-63-7	C₁₆H₁₂ClN₃O₄
13-Methyl-8-[4-(propan-2-yl)phenyl]-5-oxa-2,11,13-triazatricyclo[7.4.0.0^{3,7}]trideca-1(9),3(7)-diene-6,10,12-trione	13-Methyl-8-[4-(propan-2-yl)phenyl]-5-oxa-2,11,13-triazatricyclo[7.4.0.0^{3,7}]trideca-1(9),3(7)-diene-6,10,12-trione	分子量：353.4 密度：N/A 沸点：N/A 熔点：N/A	863668-64-8	C₁₉H₁₉N₃O₄
8-(4-Bromophenyl)-13-methyl-5-oxa-2,11,13-triazatricyclo[7.4.0.0^{3,7}]trideca-1(9),3(7)-diene-6,10,12-trione	8-(4-Bromophenyl)-13-methyl-5-oxa-2,11,13-triazatricyclo[7.4.0.0^{3,7}]trideca-1(9),3(7)-diene-6,10,12-trione	分子量：390.19 密度：N/A 沸点：N/A 熔点：N/A	863668-65-9	C₁₆H₁₂BrN₃O₄
11,13-Dimethyl-8-[4-(trifluoromethyl)phenyl]-5-oxa-2,11,13-triazatricyclo[7.4.0.0^{3,7}]trideca-1(9),3(7)-diene-6,10,12-trione	11,13-Dimethyl-8-[4-(trifluoromethyl)phenyl]-5-oxa-2,11,13-triazatricyclo[7.4.0.0^{3,7}]trideca-1(9),3(7)-diene-6,10,12-trione	分子量：393.3 密度：N/A 沸点：N/A 熔点：N/A	863668-66-0	C₁₈H₁₄F₃N₃O₄
13-Methyl-8-(3-methylphenyl)-5-oxa-2,11,13-triazatricyclo[7.4.0.0^{3,7}]trideca-1(9),3(7)-diene-6,10,12-trione	13-Methyl-8-(3-methylphenyl)-5-oxa-2,11,13-triazatricyclo[7.4.0.0^{3,7}]trideca-1(9),3(7)-diene-6,10,12-trione	分子量：325.32 密度：N/A 沸点：N/A 熔点：N/A	863668-67-1	C₁₇H₁₅N₃O₄
13-Ethyl-8-(4-ethylphenyl)-5-oxa-2,11,13-triazatricyclo[7.4.0.0^{3,7}]trideca-1(9),3(7)-diene-6,10,12-trione	13-Ethyl-8-(4-ethylphenyl)-5-oxa-2,11,13-triazatricyclo[7.4.0.0^{3,7}]trideca-1(9),3(7)-diene-6,10,12-trione	分子量：353.4 密度：N/A 沸点：N/A 熔点：N/A	863668-68-2	C₁₉H₁₉N₃O₄
13-Methyl-8-phenyl-5-oxa-2,11,13-triazatricyclo[7.4.0.0^{3,7}]trideca-1(9),3(7)-diene-6,10,12-trione	13-Methyl-8-phenyl-5-oxa-2,11,13-triazatricyclo[7.4.0.0^{3,7}]trideca-1(9),3(7)-diene-6,10,12-trione	分子量：311.29 密度：N/A 沸点：N/A 熔点：N/A	863668-69-3	C₁₆H₁₃N₃O₄
[(3-Carbamoyl-4,5,6,7-tetrahydro-1-benzothiophen-2-yl)carbamoyl]methyl 5,6-dichloropyridine-3-carboxylate	[(3-Carbamoyl-4,5,6,7-tetrahydro-1-benzothiophen-2-yl)carbamoyl]methyl 5,6-dichloropyridine-3-carboxylate	分子量：428.3 密度：N/A 沸点：N/A 熔点：N/A	874614-54-7	C₁₇H₁₅Cl₂N₃O₄S
4-(3-Aminoprop-1-en-1-yl)benzonitrile	4-(3-Aminoprop-1-en-1-yl)benzonitrile	分子量：158.20 密度：N/A 沸点：N/A 熔点：N/A	83680-97-1	C₁₀H₁₀N₂
2-[(4-piperidinylmethyl)amino]Ethanol	2-[(4-piperidinylmethyl)amino]Ethanol	分子量：158.24 密度：N/A 沸点：N/A 熔点：N/A	126657-47-4	C₈H₁₈N₂O
2-[(6-amino-4-imino-1,4-dihydropyrimidin-2-yl)sulfanyl]-N-(1-cyano-1,2-dimethylpropyl)acetamide	2-[(6-amino-4-imino-1,4-dihydropyrimidin-2-yl)sulfanyl]-N-(1-cyano-1,2-dimethylpropyl)acetamide	分子量：294.38 密度：N/A 沸点：N/A 熔点：N/A	869634-39-9	C₁₂H₁₈N₆OS
2-[3-chloro-2-oxo-5-(trifluoromethyl)-1,2-dihydropyridin-1-yl]-N-(1-cyano-1,2-dimethylpropyl)acetamide	2-[3-chloro-2-oxo-5-(trifluoromethyl)-1,2-dihydropyridin-1-yl]-N-(1-cyano-1,2-dimethylpropyl)acetamide	分子量：349.73 密度：N/A 沸点：N/A 熔点：N/A	869634-21-9	C₁₄H₁₅ClF₃N₃O₂
2-Amino-4-[1-cyano-2-(4-methylphenyl)ethyl]-6-[ethyl(2-methyl-2-propen-1-yl)amino]-3,5-pyridinedicarbonitrile	2-Amino-4-[1-cyano-2-(4-methylphenyl)ethyl]-6-[ethyl(2-methyl-2-propen-1-yl)amino]-3,5-pyridinedicarbonitrile	分子量：384.5 密度：N/A 沸点：N/A 熔点：N/A	863668-12-6	C₂₃H₂₄N₆
N-(6-methoxypyridin-3-yl)-2-[2-(4-methylphenyl)ethenesulfonamido]acetamide	N-(6-methoxypyridin-3-yl)-2-[2-(4-methylphenyl)ethenesulfonamido]acetamide	分子量：361.4 密度：N/A 沸点：N/A 熔点：N/A	868269-17-4	C₁₇H₁₉N₃O₄S
N-[(4-methoxyphenyl)methyl]-2-(2-methoxy-N-thiophen-2-ylsulfonylanilino)acetamide	N-[(4-methoxyphenyl)methyl]-2-(2-methoxy-N-thiophen-2-ylsulfonylanilino)acetamide	分子量：446.5 密度：N/A 沸点：N/A 熔点：N/A	868268-68-2	C₂₁H₂₂N₂O₅S₂
1-{[4-(Trifluoromethyl)phenyl]carbamoyl}ethyl 2-(2-phenylethenesulfonamido)acetate	1-{[4-(Trifluoromethyl)phenyl]carbamoyl}ethyl 2-(2-phenylethenesulfonamido)acetate	分子量：456.4 密度：N/A 沸点：N/A 熔点：N/A	869872-33-3	C₂₀H₁₉F₃N₂O₅S
1-(Thiophen-3-yl)propan-1-amine	1-(Thiophen-3-yl)propan-1-amine	分子量：141.24 密度：N/A 沸点：N/A 熔点：N/A	473733-46-9	C₇H₁₁NS
N-(4-chlorophenyl)-2-(6a-methyl-10-oxo(7H,11bH-1,3-thiazolino[5',4'-6,5]thiino [3,4-c]chroman-9-yl))acetamide	N-(4-chlorophenyl)-2-(6a-methyl-10-oxo(7H,11bH-1,3-thiazolino[5',4'-6,5]thiino [3,4-c]chroman-9-yl))acetamide	分子量：459.0 密度：N/A 沸点：N/A 熔点：N/A	867311-83-9	C₂₂H₁₉ClN₂O₃S₂
6'-(4-bromophenyl)-4a'H-spiro[cyclopentane-1,8'-pyrrolo[3',4':5,6]thiopyrano[2,3-d][1,3]thiazole]-2',5',7'(3'H,6'H,7a'H)-trione	6'-(4-bromophenyl)-4a'H-spiro[cyclopentane-1,8'-pyrrolo[3',4':5,6]thiopyrano[2,3-d][1,3]thiazole]-2',5',7'(3'H,6'H,7a'H)-trione	分子量：451.4 密度：N/A 沸点：N/A 熔点：N/A	867311-87-3	C₁₈H₁₅BrN₂O₃S₂
[(1,2,3,4-Tetrahydronaphthalen-1-yl)carbamoyl]methyl 3,6-dichloropyridine-2-carboxylate	[(1,2,3,4-Tetrahydronaphthalen-1-yl)carbamoyl]methyl 3,6-dichloropyridine-2-carboxylate	分子量：379.2 密度：N/A 沸点：N/A 熔点：N/A	869866-36-4	C₁₈H₁₆Cl₂N₂O₃
(Z)-2-(4-(4-methoxybenzylidene)-5-oxo-2-thioxoimidazolidin-1-yl)-N-(4-sulfamoylphenyl)acetamide	(Z)-2-(4-(4-methoxybenzylidene)-5-oxo-2-thioxoimidazolidin-1-yl)-N-(4-sulfamoylphenyl)acetamide	分子量：446.5 密度：N/A 沸点：N/A 熔点：N/A	867312-08-1	C₁₉H₁₈N₄O₅S₂
3-Bromo-1-(4-chlorophenyl)propane-1,2-dione	3-Bromo-1-(4-chlorophenyl)propane-1,2-dione	分子量：261.50 密度：N/A 沸点：N/A 熔点：N/A	29680-63-5	C₉H₆BrClO₂
[(1-Cyano-1,2-dimethylpropyl)carbamoyl]methyl 5-methylfuran-2-carboxylate	[(1-Cyano-1,2-dimethylpropyl)carbamoyl]methyl 5-methylfuran-2-carboxylate	分子量：278.30 密度：N/A 沸点：N/A 熔点：N/A	869870-13-3	C₁₄H₁₈N₂O₄
1-[(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)carbamoyl]ethyl 2-chloropyridine-3-carboxylate	1-[(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)carbamoyl]ethyl 2-chloropyridine-3-carboxylate	分子量：414.8 密度：N/A 沸点：N/A 熔点：N/A	869867-99-2	C₂₀H₁₉ClN₄O₄
4-[4-(2-Phenylethenesulfonyl)piperazin-1-yl]-2-(thiophen-2-yl)quinazoline	4-[4-(2-Phenylethenesulfonyl)piperazin-1-yl]-2-(thiophen-2-yl)quinazoline	分子量：462.6 密度：N/A 沸点：N/A 熔点：N/A	869865-82-7	C₂₄H₂₂N₄O₂S₂
6-Chloro-5-nitroisoquinoline	6-Chloro-5-nitroisoquinoline	分子量：208.60 密度：N/A 沸点：N/A 熔点：N/A	72677-91-9	C₉H₅ClN₂O₂
4-chloro-N-{3-oxo-3-[4-(2-phenylethenesulfonyl)piperazin-1-yl]propyl}benzamide	4-chloro-N-{3-oxo-3-[4-(2-phenylethenesulfonyl)piperazin-1-yl]propyl}benzamide	分子量：462.0 密度：N/A 沸点：N/A 熔点：N/A	869869-12-5	C₂₂H₂₄ClN₃O₄S
2-[[4-amino-5-(4-tert-butylphenyl)-1,2,4-triazol-3-yl]sulfanyl]-N-(oxolan-2-ylmethyl)acetamide	2-[[4-amino-5-(4-tert-butylphenyl)-1,2,4-triazol-3-yl]sulfanyl]-N-(oxolan-2-ylmethyl)acetamide	分子量：389.5 密度：N/A 沸点：N/A 熔点：N/A	876532-47-7	C₁₉H₂₇N₅O₂S
Carbonic acid, methyl 2,4-xylyl ester	Carbonic acid, methyl 2,4-xylyl ester	分子量：180.20 密度：N/A 沸点：N/A 熔点：N/A	31268-80-1	C₁₀H₁₂O₃
5-(4-methoxyphenyl)-3-methyl-1-propyl-5,9-dihydrofuro[3',4':5,6]pyrido[2,3-d]pyrimidine-2,4,6(1H,3H,8H)-trione	5-(4-methoxyphenyl)-3-methyl-1-propyl-5,9-dihydrofuro[3',4':5,6]pyrido[2,3-d]pyrimidine-2,4,6(1H,3H,8H)-trione	分子量：383.4 密度：N/A 沸点：N/A 熔点：N/A	863668-70-6	C₂₀H₂₁N₃O₅
8-(4-Chlorophenyl)-11-methyl-13-propyl-5-oxa-2,11,13-triazatricyclo[7.4.0.0^{3,7}]trideca-1(9),3(7)-diene-6,10,12-trione	8-(4-Chlorophenyl)-11-methyl-13-propyl-5-oxa-2,11,13-triazatricyclo[7.4.0.0^{3,7}]trideca-1(9),3(7)-diene-6,10,12-trione	分子量：387.8 密度：N/A 沸点：N/A 熔点：N/A	863668-71-7	C₁₉H₁₈ClN₃O₄
8-(4-Bromophenyl)-11,13-dimethyl-5-oxa-2,11,13-triazatricyclo[7.4.0.0^{3,7}]trideca-1(9),3(7)-diene-6,10,12-trione	8-(4-Bromophenyl)-11,13-dimethyl-5-oxa-2,11,13-triazatricyclo[7.4.0.0^{3,7}]trideca-1(9),3(7)-diene-6,10,12-trione	分子量：404.2 密度：N/A 沸点：N/A 熔点：N/A	863668-72-8	C₁₇H₁₄BrN₃O₄
13-Methyl-8-(2-methylphenyl)-5-oxa-2,11,13-triazatricyclo[7.4.0.0^{3,7}]trideca-1(9),3(7)-diene-6,10,12-trione	13-Methyl-8-(2-methylphenyl)-5-oxa-2,11,13-triazatricyclo[7.4.0.0^{3,7}]trideca-1(9),3(7)-diene-6,10,12-trione	分子量：325.32 密度：N/A 沸点：N/A 熔点：N/A	863668-73-9	C₁₇H₁₅N₃O₄
8-(4-Fluorophenyl)-11-methyl-13-propyl-5-oxa-2,11,13-triazatricyclo[7.4.0.0^{3,7}]trideca-1(9),3(7)-diene-6,10,12-trione	8-(4-Fluorophenyl)-11-methyl-13-propyl-5-oxa-2,11,13-triazatricyclo[7.4.0.0^{3,7}]trideca-1(9),3(7)-diene-6,10,12-trione	分子量：371.4 密度：N/A 沸点：N/A 熔点：N/A	863668-75-1	C₁₉H₁₈FN₃O₄
8-(3-Fluorophenyl)-11-methyl-13-propyl-5-oxa-2,11,13-triazatricyclo[7.4.0.0^{3,7}]trideca-1(9),3(7)-diene-6,10,12-trione	8-(3-Fluorophenyl)-11-methyl-13-propyl-5-oxa-2,11,13-triazatricyclo[7.4.0.0^{3,7}]trideca-1(9),3(7)-diene-6,10,12-trione	分子量：371.4 密度：N/A 沸点：N/A 熔点：N/A	863668-76-2	C₁₉H₁₈FN₃O₄
5-Azidocyclohex-3-ene-1-carboxylic acid	5-Azidocyclohex-3-ene-1-carboxylic acid	分子量：167.17 密度：N/A 沸点：N/A 熔点：N/A	1824156-77-5	C₇H₉N₃O₂
[(4-Chloro-3-nitrophenyl)carbamoyl](phenyl)methyl 2-chloropyridine-3-carboxylate	[(4-Chloro-3-nitrophenyl)carbamoyl](phenyl)methyl 2-chloropyridine-3-carboxylate	分子量：446.2 密度：N/A 沸点：N/A 熔点：N/A	869866-77-3	C₂₀H₁₃Cl₂N₃O₅
[(1-Cyano-1,2-dimethylpropyl)carbamoyl]methyl 2-[(5-methylthiophen-2-yl)formamido]acetate	[(1-Cyano-1,2-dimethylpropyl)carbamoyl]methyl 2-[(5-methylthiophen-2-yl)formamido]acetate	分子量：351.4 密度：N/A 沸点：N/A 熔点：N/A	869866-79-5	C₁₆H₂₁N₃O₄S
4-chloro-N-{4-oxo-4-[4-(2-phenylethenesulfonyl)piperazin-1-yl]butyl}benzamide	4-chloro-N-{4-oxo-4-[4-(2-phenylethenesulfonyl)piperazin-1-yl]butyl}benzamide	分子量：476.0 密度：N/A 沸点：N/A 熔点：N/A	869712-09-4	C₂₃H₂₆ClN₃O₄S
11-Methyl-13-propyl-8-(3,4,5-trimethoxyphenyl)-5-oxa-2,11,13-triazatricyclo[7.4.0.0^{3,7}]trideca-1(9),3(7)-diene-6,10,12-trione	11-Methyl-13-propyl-8-(3,4,5-trimethoxyphenyl)-5-oxa-2,11,13-triazatricyclo[7.4.0.0^{3,7}]trideca-1(9),3(7)-diene-6,10,12-trione	分子量：443.4 密度：N/A 沸点：N/A 熔点：N/A	867311-58-8	C₂₂H₂₅N₃O₇