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
Tert-butyl 4-(prop-2-en-1-ylcarbamothioyl)piperazine-1-carboxylate	Tert-butyl 4-(prop-2-en-1-ylcarbamothioyl)piperazine-1-carboxylate	分子量：285.41 密度：N/A 沸点：N/A 熔点：N/A	1010897-25-2	C₁₃H₂₃N₃O₂S
ethyl 4-(4-(3-(4-fluorophenyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-yl)piperazin-1-yl)-4-oxobutanoate	ethyl 4-(4-(3-(4-fluorophenyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-yl)piperazin-1-yl)-4-oxobutanoate	分子量：427.4 密度：N/A 沸点：N/A 熔点：N/A	920366-33-2	C₂₀H₂₂FN₇O₃
N-[1-(3-methoxypropyl)-4,5-dimethyl-3-(phenylsulfonyl)-1H-pyrrol-2-yl]-2,2-dimethylpropanamide	N-[1-(3-methoxypropyl)-4,5-dimethyl-3-(phenylsulfonyl)-1H-pyrrol-2-yl]-2,2-dimethylpropanamide	分子量：406.5 密度：N/A 沸点：N/A 熔点：N/A	1010914-20-1	C₂₁H₃₀N₂O₄S
5-bromo-N-[(2Z)-4-methyl-1,3-thiazol-2(3H)-ylidene]-2-(1H-tetrazol-1-yl)benzamide	5-bromo-N-[(2Z)-4-methyl-1,3-thiazol-2(3H)-ylidene]-2-(1H-tetrazol-1-yl)benzamide	分子量：365.21 密度：N/A 沸点：N/A 熔点：N/A	1010914-24-5	C₁₂H₉BrN₆OS
1-(4-(3-(3-fluorophenyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-yl)piperazin-1-yl)ethanone	1-(4-(3-(3-fluorophenyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-yl)piperazin-1-yl)ethanone	分子量：341.34 密度：N/A 沸点：N/A 熔点：N/A	920386-93-2	C₁₆H₁₆FN₇O
1-(4-(3-(3-fluorophenyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-yl)piperazin-1-yl)-2-methylpropan-1-one	1-(4-(3-(3-fluorophenyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-yl)piperazin-1-yl)-2-methylpropan-1-one	分子量：369.4 密度：N/A 沸点：N/A 熔点：N/A	920227-01-6	C₁₈H₂₀FN₇O
1-(4-(3-(3-fluorophenyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-yl)piperazin-1-yl)-2,2-dimethylpropan-1-one	1-(4-(3-(3-fluorophenyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-yl)piperazin-1-yl)-2,2-dimethylpropan-1-one	分子量：383.4 密度：N/A 沸点：N/A 熔点：N/A	920366-57-0	C₁₉H₂₂FN₇O
1-(4-(3-(3-fluorophenyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-yl)piperazin-1-yl)-3-methylbutan-1-one	1-(4-(3-(3-fluorophenyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-yl)piperazin-1-yl)-3-methylbutan-1-one	分子量：383.4 密度：N/A 沸点：N/A 熔点：N/A	923513-28-4	C₁₉H₂₂FN₇O
1-(4-(3-(3-fluorophenyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-yl)piperazin-1-yl)-3,3-dimethylbutan-1-one	1-(4-(3-(3-fluorophenyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-yl)piperazin-1-yl)-3,3-dimethylbutan-1-one	分子量：397.4 密度：N/A 沸点：N/A 熔点：N/A	920227-04-9	C₂₀H₂₄FN₇O
2-ethyl-1-(4-(3-(3-fluorophenyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-yl)piperazin-1-yl)butan-1-one	2-ethyl-1-(4-(3-(3-fluorophenyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-yl)piperazin-1-yl)butan-1-one	分子量：397.4 密度：N/A 沸点：N/A 熔点：N/A	920386-99-8	C₂₀H₂₄FN₇O
cyclopropyl(4-(3-(3-fluorophenyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-yl)piperazin-1-yl)methanone	cyclopropyl(4-(3-(3-fluorophenyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-yl)piperazin-1-yl)methanone	分子量：367.4 密度：N/A 沸点：N/A 熔点：N/A	923513-32-0	C₁₈H₁₈FN₇O
3-{4-[2-(4-acetylpiperazin-1-yl)-2-oxoethoxy]phenyl}-8-methoxy-2H-chromen-2-one	3-{4-[2-(4-acetylpiperazin-1-yl)-2-oxoethoxy]phenyl}-8-methoxy-2H-chromen-2-one	分子量：436.5 密度：N/A 沸点：N/A 熔点：N/A	1010930-99-0	C₂₄H₂₄N₂O₆
3-chloro-1-(4-(3-(3-fluorophenyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-yl)piperazin-1-yl)propan-1-one	3-chloro-1-(4-(3-(3-fluorophenyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-yl)piperazin-1-yl)propan-1-one	分子量：389.8 密度：N/A 沸点：N/A 熔点：N/A	920227-14-1	C₁₇H₁₇ClFN₇O
(E)-1-((4-fluorophenyl)sulfonyl)-N-(6-methoxy-3-methylbenzo[d]thiazol-2(3H)-ylidene)piperidine-4-carboxamide	(E)-1-((4-fluorophenyl)sulfonyl)-N-(6-methoxy-3-methylbenzo[d]thiazol-2(3H)-ylidene)piperidine-4-carboxamide	分子量：463.5 密度：N/A 沸点：N/A 熔点：N/A	1007033-92-2	C₂₁H₂₂FN₃O₄S₂
1-[4-(2,1,3-Benzoxadiazol-4-ylsulfonyl)piperazin-1-yl]-2-(3,4-dimethoxyphenyl)ethanone	1-[4-(2,1,3-Benzoxadiazol-4-ylsulfonyl)piperazin-1-yl]-2-(3,4-dimethoxyphenyl)ethanone	分子量：446.5 密度：N/A 沸点：N/A 熔点：N/A	1010931-68-6	C₂₀H₂₂N₄O₆S
5-[(3,5-Difluorophenyl)methyl]-4-(furan-2-ylmethyl)-1,2,4-triazole-3-thiol	5-[(3,5-Difluorophenyl)methyl]-4-(furan-2-ylmethyl)-1,2,4-triazole-3-thiol	分子量：307.32 密度：N/A 沸点：N/A 熔点：N/A	1010879-06-7	C₁₄H₁₁F₂N₃OS
N-[1-(3-methoxypropyl)-4,5-dimethyl-3-(phenylsulfonyl)-1H-pyrrol-2-yl]propanamide	N-[1-(3-methoxypropyl)-4,5-dimethyl-3-(phenylsulfonyl)-1H-pyrrol-2-yl]propanamide	分子量：378.5 密度：N/A 沸点：N/A 熔点：N/A	1010931-93-7	C₁₉H₂₆N₂O₄S
N-(4-bromophenyl)-3-phenyl-5,6-dihydro-1,4-oxathiine-2-carboxamide	N-(4-bromophenyl)-3-phenyl-5,6-dihydro-1,4-oxathiine-2-carboxamide	分子量：376.3 密度：N/A 沸点：N/A 熔点：N/A	1010879-49-8	C₁₇H₁₄BrNO₂S
3-phenyl-N-[4-(piperidin-1-ylsulfonyl)phenyl]-5,6-dihydro-1,4-oxathiine-2-carboxamide	3-phenyl-N-[4-(piperidin-1-ylsulfonyl)phenyl]-5,6-dihydro-1,4-oxathiine-2-carboxamide	分子量：444.6 密度：N/A 沸点：N/A 熔点：N/A	1010879-57-8	C₂₂H₂₄N₂O₄S₂
5-(2-chlorophenyl)-3-{[2-(dimethylamino)ethyl]sulfanyl}-7,9-dimethylpyrimido[5,4-e][1,2,4]triazolo[4,3-c]pyrimidine-8,10(7H,9H)-dione	5-(2-chlorophenyl)-3-{[2-(dimethylamino)ethyl]sulfanyl}-7,9-dimethylpyrimido[5,4-e][1,2,4]triazolo[4,3-c]pyrimidine-8,10(7H,9H)-dione	分子量：445.9 密度：N/A 沸点：N/A 熔点：N/A	1010879-61-4	C₁₉H₂₀ClN₇O₂S
1-benzofuran-2-yl(8-fluoro-1,3,4,5-tetrahydro-2H-pyrido[4,3-b]indol-2-yl)methanone	1-benzofuran-2-yl(8-fluoro-1,3,4,5-tetrahydro-2H-pyrido[4,3-b]indol-2-yl)methanone	分子量：334.3 密度：N/A 沸点：N/A 熔点：N/A	1010932-27-0	C₂₀H₁₅FN₂O₂
[4-(2,1,3-Benzothiadiazol-4-ylsulfonyl)piperazin-1-yl](3,4-dimethoxyphenyl)methanone	[4-(2,1,3-Benzothiadiazol-4-ylsulfonyl)piperazin-1-yl](3,4-dimethoxyphenyl)methanone	分子量：448.5 密度：N/A 沸点：N/A 熔点：N/A	1010879-88-5	C₁₉H₂₀N₄O₅S₂
N-{1-(2-methoxyethyl)-3-[(4-methoxyphenyl)sulfonyl]-4,5-dimethyl-1H-pyrrol-2-yl}-3-methylbutanamide	N-{1-(2-methoxyethyl)-3-[(4-methoxyphenyl)sulfonyl]-4,5-dimethyl-1H-pyrrol-2-yl}-3-methylbutanamide	分子量：422.5 密度：N/A 沸点：N/A 熔点：N/A	1010879-92-1	C₂₁H₃₀N₂O₅S
5,6,7-trimethoxy-N-[2-oxo-2-(1,3-thiazol-2-ylamino)ethyl]-1H-indole-2-carboxamide	5,6,7-trimethoxy-N-[2-oxo-2-(1,3-thiazol-2-ylamino)ethyl]-1H-indole-2-carboxamide	分子量：390.4 密度：N/A 沸点：N/A 熔点：N/A	1010880-04-2	C₁₇H₁₈N₄O₅S
N-(1,3-benzodioxol-5-yl)-5-fluoro-2-(1H-tetrazol-1-yl)benzamide	N-(1,3-benzodioxol-5-yl)-5-fluoro-2-(1H-tetrazol-1-yl)benzamide	分子量：327.27 密度：N/A 沸点：N/A 熔点：N/A	1010932-51-0	C₁₅H₁₀FN₅O₃
N-{3-[(4-methoxyphenyl)sulfonyl]-4,5-dimethyl-1-propyl-1H-pyrrol-2-yl}-3-methylbutanamide	N-{3-[(4-methoxyphenyl)sulfonyl]-4,5-dimethyl-1-propyl-1H-pyrrol-2-yl}-3-methylbutanamide	分子量：406.5 密度：N/A 沸点：N/A 熔点：N/A	1010932-54-3	C₂₁H₃₀N₂O₄S
5-fluoro-3-methyl-N-{4-[4-(prop-2-en-1-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}-1-benzofuran-2-carboxamide	5-fluoro-3-methyl-N-{4-[4-(prop-2-en-1-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}-1-benzofuran-2-carboxamide	分子量：393.4 密度：N/A 沸点：N/A 熔点：N/A	1010880-12-2	C₂₁H₁₆FN₃O₄
C14H8Br2ClN5O	C14H8Br2ClN5O	分子量：457.51 密度：N/A 沸点：N/A 熔点：N/A	1010880-28-0	C₁₄H₈Br₂ClN₅O
1,3-Benzodioxol-5-yl[4-(2,1,3-benzothiadiazol-4-ylsulfonyl)piperazin-1-yl]methanone	1,3-Benzodioxol-5-yl[4-(2,1,3-benzothiadiazol-4-ylsulfonyl)piperazin-1-yl]methanone	分子量：432.5 密度：N/A 沸点：N/A 熔点：N/A	1010932-69-0	C₁₈H₁₆N₄O₅S₂
N-{2-[(2,1,3-benzoxadiazol-4-ylsulfonyl)amino]ethyl}furan-2-carboxamide	N-{2-[(2,1,3-benzoxadiazol-4-ylsulfonyl)amino]ethyl}furan-2-carboxamide	分子量：336.33 密度：N/A 沸点：N/A 熔点：N/A	1010880-32-6	C₁₃H₁₂N₄O₅S
N-{2-[(4-methoxyphenyl)carbamoyl]phenyl}-2-(methylsulfanyl)pyridine-3-carboxamide	N-{2-[(4-methoxyphenyl)carbamoyl]phenyl}-2-(methylsulfanyl)pyridine-3-carboxamide	分子量：393.5 密度：N/A 沸点：N/A 熔点：N/A	1090662-74-0	C₂₁H₁₉N₃O₃S
N-(3,4-dimethoxyphenyl)-4-(1H-tetrazol-1-yl)benzamide	N-(3,4-dimethoxyphenyl)-4-(1H-tetrazol-1-yl)benzamide	分子量：325.32 密度：N/A 沸点：N/A 熔点：N/A	1010932-78-1	C₁₆H₁₅N₅O₃
1-ethyl-N-(furan-2-ylmethyl)-6-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxamide	1-ethyl-N-(furan-2-ylmethyl)-6-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxamide	分子量：326.3 密度：N/A 沸点：N/A 熔点：N/A	1010880-44-0	C₁₈H₁₈N₂O₄
N-{3-[(4-methoxyphenyl)sulfonyl]-4,5-dimethyl-1-propyl-1H-pyrrol-2-yl}benzamide	N-{3-[(4-methoxyphenyl)sulfonyl]-4,5-dimethyl-1-propyl-1H-pyrrol-2-yl}benzamide	分子量：426.5 密度：N/A 沸点：N/A 熔点：N/A	1010880-48-4	C₂₃H₂₆N₂O₄S
N-[cyano(phenyl)methyl]-4-phenoxybenzamide	N-[cyano(phenyl)methyl]-4-phenoxybenzamide	分子量：328.4 密度：N/A 沸点：N/A 熔点：N/A	1090944-00-5	C₂₁H₁₆N₂O₂
(1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)methyl 2H-chromene-3-carboxylate	(1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)methyl 2H-chromene-3-carboxylate	分子量：328.32 密度：N/A 沸点：N/A 熔点：N/A	1110913-40-0	C₁₇H₁₆N₂O₅
2-((1-(4-chlorophenyl)-5-(p-tolyl)-1H-imidazol-2-yl)thio)-1-(indolin-1-yl)ethanone	2-((1-(4-chlorophenyl)-5-(p-tolyl)-1H-imidazol-2-yl)thio)-1-(indolin-1-yl)ethanone	分子量：460.0 密度：N/A 沸点：N/A 熔点：N/A	1226436-05-0	C₂₆H₂₂ClN₃OS
2-hydroxyethyl 3-(3,4-dimethylphenyl)-1-phenyl-1H-pyrazole-4-carboxylate	2-hydroxyethyl 3-(3,4-dimethylphenyl)-1-phenyl-1H-pyrazole-4-carboxylate	分子量：336.4 密度：N/A 沸点：N/A 熔点：N/A	1171067-19-8	C₂₀H₂₀N₂O₃
N-(6-Methyl-2-pyridinyl)-2-quinoxalinamine	N-(6-Methyl-2-pyridinyl)-2-quinoxalinamine	分子量：236.27 密度：N/A 沸点：N/A 熔点：N/A	1258454-18-0	C₁₄H₁₂N₄
N-[4-Fluoro-5-(3-methyl-1-piperazinyl)-2-nitrophenyl]methanesulfonamide	N-[4-Fluoro-5-(3-methyl-1-piperazinyl)-2-nitrophenyl]methanesulfonamide	分子量：332.35 密度：N/A 沸点：N/A 熔点：N/A	489412-21-7	C₁₂H₁₇FN₄O₄S
1-(6,7-Dihydro-[1,4]dioxino[2',3':4,5]benzo[1,2-d]thiazol-2-yl)-3-isopropylurea	1-(6,7-Dihydro-[1,4]dioxino[2',3':4,5]benzo[1,2-d]thiazol-2-yl)-3-isopropylurea	分子量：293.34 密度：N/A 沸点：N/A 熔点：N/A	1226444-32-1	C₁₃H₁₅N₃O₃S
2-[2-(azepan-1-yl)-2-oxoethyl]-2H,3H,5H,6H,7H,8H,9H-[1,2,4]triazolo[4,3-a]azepin-3-one	2-[2-(azepan-1-yl)-2-oxoethyl]-2H,3H,5H,6H,7H,8H,9H-[1,2,4]triazolo[4,3-a]azepin-3-one	分子量：292.38 密度：N/A 沸点：N/A 熔点：N/A	1089575-18-7	C₁₅H₂₄N₄O₂
N-(4-chlorophenyl)-2-{[1-(4-chlorophenyl)-5-(4-methylphenyl)-1H-imidazol-2-yl]sulfanyl}acetamide	N-(4-chlorophenyl)-2-{[1-(4-chlorophenyl)-5-(4-methylphenyl)-1H-imidazol-2-yl]sulfanyl}acetamide	分子量：468.4 密度：N/A 沸点：N/A 熔点：N/A	1226447-51-3	C₂₄H₁₉Cl₂N₃OS
2-Methylthio-5-p-aminophenyl-1,3,4-oxadiazole	2-Methylthio-5-p-aminophenyl-1,3,4-oxadiazole	分子量：207.25 密度：N/A 沸点：N/A 熔点：N/A	354788-98-0	C₉H₉N₃OS
2-((1-(4-chlorophenyl)-5-(p-tolyl)-1H-imidazol-2-yl)thio)-N-(thiazol-2-yl)acetamide	2-((1-(4-chlorophenyl)-5-(p-tolyl)-1H-imidazol-2-yl)thio)-N-(thiazol-2-yl)acetamide	分子量：441.0 密度：N/A 沸点：N/A 熔点：N/A	1226429-38-4	C₂₁H₁₇ClN₄OS₂
2-((1-(4-chlorophenyl)-5-(p-tolyl)-1H-imidazol-2-yl)thio)-N-(4-methylthiazol-2-yl)acetamide	2-((1-(4-chlorophenyl)-5-(p-tolyl)-1H-imidazol-2-yl)thio)-N-(4-methylthiazol-2-yl)acetamide	分子量：455.0 密度：N/A 沸点：N/A 熔点：N/A	1226431-93-1	C₂₂H₁₉ClN₄OS₂
2-{[1-(4-chlorophenyl)-5-(4-methylphenyl)-1H-imidazol-2-yl]sulfanyl}-N-(5-methyl-1,2-oxazol-3-yl)acetamide	2-{[1-(4-chlorophenyl)-5-(4-methylphenyl)-1H-imidazol-2-yl]sulfanyl}-N-(5-methyl-1,2-oxazol-3-yl)acetamide	分子量：438.9 密度：N/A 沸点：N/A 熔点：N/A	1226434-86-1	C₂₂H₁₉ClN₄O₂S
2-((1-(4-chlorophenyl)-5-(p-tolyl)-1H-imidazol-2-yl)thio)-N-methylacetamide	2-((1-(4-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	1226448-10-7	C₁₉H₁₈ClN₃OS
3-(4-Methylphenyl)-2,4-dioxo-1,2,3,4-tetrahydroquinazoline-7-carboxylic acid	3-(4-Methylphenyl)-2,4-dioxo-1,2,3,4-tetrahydroquinazoline-7-carboxylic acid	分子量：296.28 密度：N/A 沸点：N/A 熔点：N/A	1223883-35-9	C₁₆H₁₂N₂O₄
2,4-Dioxo-3-(thiophen-2-ylmethyl)-1,2,3,4-tetrahydroquinazoline-7-carboxylic acid	2,4-Dioxo-3-(thiophen-2-ylmethyl)-1,2,3,4-tetrahydroquinazoline-7-carboxylic acid	分子量：302.31 密度：N/A 沸点：N/A 熔点：N/A	1232780-68-5	C₁₄H₁₀N₂O₄S