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-(2-morpholinoethyl)-2-(m-tolyl)-4-tosyloxazol-5-amine	N-(2-morpholinoethyl)-2-(m-tolyl)-4-tosyloxazol-5-amine	分子量：441.5 密度：N/A 沸点：N/A 熔点：N/A	862740-05-4	C₂₃H₂₇N₃O₄S
4-((4-fluorophenyl)sulfonyl)-2-phenyl-N-(pyridin-3-ylmethyl)oxazol-5-amine	4-((4-fluorophenyl)sulfonyl)-2-phenyl-N-(pyridin-3-ylmethyl)oxazol-5-amine	分子量：409.4 密度：N/A 沸点：N/A 熔点：N/A	862758-63-2	C₂₁H₁₆FN₃O₃S
4-(phenylsulfonyl)-N-(pyridin-3-ylmethyl)-2-(p-tolyl)oxazol-5-amine	4-(phenylsulfonyl)-N-(pyridin-3-ylmethyl)-2-(p-tolyl)oxazol-5-amine	分子量：405.5 密度：N/A 沸点：N/A 熔点：N/A	862758-66-5	C₂₂H₁₉N₃O₃S
4-(4-chlorobenzenesulfonyl)-2-(4-methylphenyl)-N-[(pyridin-3-yl)methyl]-1,3-oxazol-5-amine	4-(4-chlorobenzenesulfonyl)-2-(4-methylphenyl)-N-[(pyridin-3-yl)methyl]-1,3-oxazol-5-amine	分子量：439.9 密度：N/A 沸点：N/A 熔点：N/A	862758-67-6	C₂₂H₁₈ClN₃O₃S
4-((4-fluorophenyl)sulfonyl)-2-(furan-2-yl)-N-(2-morpholinoethyl)oxazol-5-amine	4-((4-fluorophenyl)sulfonyl)-2-(furan-2-yl)-N-(2-morpholinoethyl)oxazol-5-amine	分子量：421.4 密度：N/A 沸点：N/A 熔点：N/A	862793-85-9	C₁₉H₂₀FN₃O₅S
4-((4-fluorophenyl)sulfonyl)-2-(furan-2-yl)-N-(pyridin-3-ylmethyl)oxazol-5-amine	4-((4-fluorophenyl)sulfonyl)-2-(furan-2-yl)-N-(pyridin-3-ylmethyl)oxazol-5-amine	分子量：399.4 密度：N/A 沸点：N/A 熔点：N/A	883248-55-3	C₁₉H₁₄FN₃O₄S
4-((4-chlorophenyl)sulfonyl)-2-(furan-2-yl)-N-(furan-2-ylmethyl)oxazol-5-amine	4-((4-chlorophenyl)sulfonyl)-2-(furan-2-yl)-N-(furan-2-ylmethyl)oxazol-5-amine	分子量：404.8 密度：N/A 沸点：N/A 熔点：N/A	862794-31-8	C₁₈H₁₃ClN₂O₅S
4-(4-Chlorobenzenesulfonyl)-2-(furan-2-YL)-N-[2-(morpholin-4-YL)ethyl]-1,3-oxazol-5-amine	4-(4-Chlorobenzenesulfonyl)-2-(furan-2-YL)-N-[2-(morpholin-4-YL)ethyl]-1,3-oxazol-5-amine	分子量：437.9 密度：N/A 沸点：N/A 熔点：N/A	862794-41-0	C₁₉H₂₀ClN₃O₅S
4-(benzenesulfonyl)-2-(2-chlorophenyl)-N-methyl-1,3-oxazol-5-amine	4-(benzenesulfonyl)-2-(2-chlorophenyl)-N-methyl-1,3-oxazol-5-amine	分子量：348.8 密度：N/A 沸点：N/A 熔点：N/A	862795-43-5	C₁₆H₁₃ClN₂O₃S
2-(2-chlorophenyl)-N-(furan-2-ylmethyl)-4-(phenylsulfonyl)oxazol-5-amine	2-(2-chlorophenyl)-N-(furan-2-ylmethyl)-4-(phenylsulfonyl)oxazol-5-amine	分子量：414.9 密度：N/A 沸点：N/A 熔点：N/A	862795-49-1	C₂₀H₁₅ClN₂O₄S
2-(2-fluorophenyl)-4-((4-fluorophenyl)sulfonyl)-N-(pyridin-3-ylmethyl)oxazol-5-amine	2-(2-fluorophenyl)-4-((4-fluorophenyl)sulfonyl)-N-(pyridin-3-ylmethyl)oxazol-5-amine	分子量：427.4 密度：N/A 沸点：N/A 熔点：N/A	862798-76-3	C₂₁H₁₅F₂N₃O₃S
2-methoxy-N-methyl-5-(piperidin-1-ylsulfonyl)aniline	2-methoxy-N-methyl-5-(piperidin-1-ylsulfonyl)aniline	分子量：284.38 密度：N/A 沸点：N/A 熔点：N/A	942033-54-7	C₁₃H₂₀N₂O₃S
2-((3-((2,5-Dimethoxybenzyl)oxy)-2-hydroxypropyl)amino)-2-methylpropan-1-ol	2-((3-((2,5-Dimethoxybenzyl)oxy)-2-hydroxypropyl)amino)-2-methylpropan-1-ol	分子量：313.39 密度：N/A 沸点：N/A 熔点：N/A	941904-45-6	C₁₆H₂₇NO₅
4-methyl-N-(2-(4-(pyridin-2-yl)piperazin-1-yl)ethyl)benzenesulfonamide	4-methyl-N-(2-(4-(pyridin-2-yl)piperazin-1-yl)ethyl)benzenesulfonamide	分子量：360.5 密度：N/A 沸点：N/A 熔点：N/A	941904-87-6	C₁₈H₂₄N₄O₂S
1-[4-(4-chlorobenzenesulfonyl)piperazin-1-yl]-3-(3,5-dimethyl-1H-pyrazol-1-yl)butan-1-one	1-[4-(4-chlorobenzenesulfonyl)piperazin-1-yl]-3-(3,5-dimethyl-1H-pyrazol-1-yl)butan-1-one	分子量：424.9 密度：N/A 沸点：N/A 熔点：N/A	1015845-21-2	C₁₉H₂₅ClN₄O₃S
Ethyl 4-(2-(6-methyl-2,4-dioxo-1,3-diazaspiro[4.5]decan-3-yl)acetyl)piperazine-1-carboxylate	Ethyl 4-(2-(6-methyl-2,4-dioxo-1,3-diazaspiro[4.5]decan-3-yl)acetyl)piperazine-1-carboxylate	分子量：380.4 密度：N/A 沸点：N/A 熔点：N/A	941905-13-1	C₁₈H₂₈N₄O₅
3-(1-(2-(Cyclopentylamino)-2-oxoethyl)-2,5-dioxo-4-phenylimidazolidin-4-yl)propanoic acid	3-(1-(2-(Cyclopentylamino)-2-oxoethyl)-2,5-dioxo-4-phenylimidazolidin-4-yl)propanoic acid	分子量：373.4 密度：N/A 沸点：N/A 熔点：N/A	942034-15-3	C₁₉H₂₃N₃O₅
2-(1,3-benzothiazol-2-yl)-N-(pyridin-3-yl)pyridine-3-carboxamide	2-(1,3-benzothiazol-2-yl)-N-(pyridin-3-yl)pyridine-3-carboxamide	分子量：332.4 密度：N/A 沸点：N/A 熔点：N/A	880619-94-3	C₁₈H₁₂N₄OS
6-[(4-Methylpiperidin-1-yl)methyl]benzimidazo[1,2-c]quinazoline	6-[(4-Methylpiperidin-1-yl)methyl]benzimidazo[1,2-c]quinazoline	分子量：330.4 密度：N/A 沸点：N/A 熔点：N/A	941905-34-6	C₂₁H₂₂N₄
(Z)-N-(2-(tert-butyl)-5,5-dioxido-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)-3-phenylacrylamide	(Z)-N-(2-(tert-butyl)-5,5-dioxido-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)-3-phenylacrylamide	分子量：359.4 密度：N/A 沸点：N/A 熔点：N/A	449784-83-2	C₁₈H₂₁N₃O₃S
(Z)-N-(5,5-dioxido-2-phenyl-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)-3-phenylacrylamide	(Z)-N-(5,5-dioxido-2-phenyl-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)-3-phenylacrylamide	分子量：379.4 密度：N/A 沸点：N/A 熔点：N/A	681266-26-2	C₂₀H₁₇N₃O₃S
(Z)-N-(2-(4-chlorophenyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)-3-(furan-2-yl)acrylamide	(Z)-N-(2-(4-chlorophenyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)-3-(furan-2-yl)acrylamide	分子量：371.8 密度：N/A 沸点：N/A 熔点：N/A	450341-30-7	C₁₈H₁₄ClN₃O₂S
(Z)-N-(2-(4-fluorophenyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)-3-(furan-2-yl)acrylamide	(Z)-N-(2-(4-fluorophenyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)-3-(furan-2-yl)acrylamide	分子量：355.4 密度：N/A 沸点：N/A 熔点：N/A	450343-44-9	C₁₈H₁₄FN₃O₂S
3-[4-(dimethylamino)phenyl]-2-(4-methoxyphenyl)-hexahydro-1H-pyrrolo[1,2-c]imidazol-1-one	3-[4-(dimethylamino)phenyl]-2-(4-methoxyphenyl)-hexahydro-1H-pyrrolo[1,2-c]imidazol-1-one	分子量：351.4 密度：N/A 沸点：N/A 熔点：N/A	1009605-56-4	C₂₁H₂₅N₃O₂
(Z)-ethyl 4-oxo-3-phenyl-5-(3-phenylacrylamido)-3,4-dihydrothieno[3,4-d]pyridazine-1-carboxylate	(Z)-ethyl 4-oxo-3-phenyl-5-(3-phenylacrylamido)-3,4-dihydrothieno[3,4-d]pyridazine-1-carboxylate	分子量：445.5 密度：N/A 沸点：N/A 熔点：N/A	481704-92-1	C₂₄H₁₉N₃O₄S
(Z)-ethyl 5-(but-2-enamido)-3-(4-fluorophenyl)-4-oxo-3,4-dihydrothieno[3,4-d]pyridazine-1-carboxylate	(Z)-ethyl 5-(but-2-enamido)-3-(4-fluorophenyl)-4-oxo-3,4-dihydrothieno[3,4-d]pyridazine-1-carboxylate	分子量：401.4 密度：N/A 沸点：N/A 熔点：N/A	851949-97-8	C₁₉H₁₆FN₃O₄S
(Z)-ethyl 5-(but-2-enamido)-3-(4-chlorophenyl)-4-oxo-3,4-dihydrothieno[3,4-d]pyridazine-1-carboxylate	(Z)-ethyl 5-(but-2-enamido)-3-(4-chlorophenyl)-4-oxo-3,4-dihydrothieno[3,4-d]pyridazine-1-carboxylate	分子量：417.9 密度：N/A 沸点：N/A 熔点：N/A	851950-94-2	C₁₉H₁₆ClN₃O₄S
(Z)-ethyl 5-(but-2-enamido)-3-(4-methoxyphenyl)-4-oxo-3,4-dihydrothieno[3,4-d]pyridazine-1-carboxylate	(Z)-ethyl 5-(but-2-enamido)-3-(4-methoxyphenyl)-4-oxo-3,4-dihydrothieno[3,4-d]pyridazine-1-carboxylate	分子量：413.4 密度：N/A 沸点：N/A 熔点：N/A	851977-79-2	C₂₀H₁₉N₃O₅S
1,4-Bis(6-ethoxybenzo[d]thiazol-2-yl)piperazine	1,4-Bis(6-ethoxybenzo[d]thiazol-2-yl)piperazine	分子量：440.6 密度：N/A 沸点：N/A 熔点：N/A	863001-01-8	C₂₂H₂₄N₄O₂S₂
1,4-Bis(6,7-dihydro-[1,4]dioxino[2',3':4,5]benzo[1,2-d]thiazol-2-yl)piperazine	1,4-Bis(6,7-dihydro-[1,4]dioxino[2',3':4,5]benzo[1,2-d]thiazol-2-yl)piperazine	分子量：468.6 密度：N/A 沸点：N/A 熔点：N/A	863001-69-8	C₂₂H₂₀N₄O₄S₂
5-((2-(azepan-1-yl)-2-oxoethyl)thio)-1,3-dimethyl-7-phenylpyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione	5-((2-(azepan-1-yl)-2-oxoethyl)thio)-1,3-dimethyl-7-phenylpyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione	分子量：439.5 密度：N/A 沸点：N/A 熔点：N/A	906230-29-3	C₂₂H₂₅N₅O₃S
5-((2-(3,4-dihydroquinolin-1(2H)-yl)-2-oxoethyl)thio)-1,3-dimethyl-7-phenylpyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione	5-((2-(3,4-dihydroquinolin-1(2H)-yl)-2-oxoethyl)thio)-1,3-dimethyl-7-phenylpyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione	分子量：473.5 密度：N/A 沸点：N/A 熔点：N/A	906230-48-6	C₂₅H₂₃N₅O₃S
3-(4-ethoxyphenyl)-6-(2-oxo-2-(4-phenylpiperazin-1-yl)ethyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7(6H)-one	3-(4-ethoxyphenyl)-6-(2-oxo-2-(4-phenylpiperazin-1-yl)ethyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7(6H)-one	分子量：459.5 密度：N/A 沸点：N/A 熔点：N/A	863019-92-5	C₂₄H₂₅N₇O₃
6-(2-(4-benzylpiperidin-1-yl)-2-oxoethyl)-3-(4-ethoxyphenyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7(6H)-one	6-(2-(4-benzylpiperidin-1-yl)-2-oxoethyl)-3-(4-ethoxyphenyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7(6H)-one	分子量：472.5 密度：N/A 沸点：N/A 熔点：N/A	863019-93-6	C₂₆H₂₈N₆O₃
4-(1H-benzimidazol-2-yl)-1-(3-chloro-4-methylphenyl)pyrrolidin-2-one	4-(1H-benzimidazol-2-yl)-1-(3-chloro-4-methylphenyl)pyrrolidin-2-one	分子量：325.8 密度：N/A 沸点：N/A 熔点：N/A	862828-67-9	C₁₈H₁₆ClN₃O
1-(3-chloro-4-methylphenyl)-4-(1-propyl-1H-1,3-benzodiazol-2-yl)pyrrolidin-2-one	1-(3-chloro-4-methylphenyl)-4-(1-propyl-1H-1,3-benzodiazol-2-yl)pyrrolidin-2-one	分子量：367.9 密度：N/A 沸点：N/A 熔点：N/A	847397-35-7	C₂₁H₂₂ClN₃O
3-((5-((2-oxo-2-(piperidin-1-yl)ethyl)thio)-4-phenyl-4H-1,2,4-triazol-3-yl)methyl)benzo[d]thiazol-2(3H)-one	3-((5-((2-oxo-2-(piperidin-1-yl)ethyl)thio)-4-phenyl-4H-1,2,4-triazol-3-yl)methyl)benzo[d]thiazol-2(3H)-one	分子量：465.6 密度：N/A 沸点：N/A 熔点：N/A	847401-10-9	C₂₃H₂₃N₅O₂S₂
3-((5-((2-oxo-2-(piperidin-1-yl)ethyl)thio)-4-(o-tolyl)-4H-1,2,4-triazol-3-yl)methyl)benzo[d]thiazol-2(3H)-one	3-((5-((2-oxo-2-(piperidin-1-yl)ethyl)thio)-4-(o-tolyl)-4H-1,2,4-triazol-3-yl)methyl)benzo[d]thiazol-2(3H)-one	分子量：479.6 密度：N/A 沸点：N/A 熔点：N/A	847402-79-3	C₂₄H₂₅N₅O₂S₂
N-(2-methoxy-5-nitrophenyl)-3-(3-methoxyphenyl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carboxamide	N-(2-methoxy-5-nitrophenyl)-3-(3-methoxyphenyl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carboxamide	分子量：412.4 密度：N/A 沸点：N/A 熔点：N/A	887894-57-7	C₁₉H₁₆N₄O₇
3-(3,4-dimethoxyphenyl)-N-(3-nitrophenyl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carboxamide	3-(3,4-dimethoxyphenyl)-N-(3-nitrophenyl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carboxamide	分子量：412.4 密度：N/A 沸点：N/A 熔点：N/A	887883-85-4	C₁₉H₁₆N₄O₇
3-(3,4-dimethoxyphenyl)-N-(4-nitrophenyl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carboxamide	3-(3,4-dimethoxyphenyl)-N-(4-nitrophenyl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carboxamide	分子量：412.4 密度：N/A 沸点：N/A 熔点：N/A	887884-36-8	C₁₉H₁₆N₄O₇
N-methyl-2-[4-methyl-3,5-bis(4-methylphenyl)-1H-pyrazol-1-yl]-N-[(3-methyl-1H-pyrazol-1-yl)methyl]acetamide	N-methyl-2-[4-methyl-3,5-bis(4-methylphenyl)-1H-pyrazol-1-yl]-N-[(3-methyl-1H-pyrazol-1-yl)methyl]acetamide	分子量：427.5 密度：N/A 沸点：N/A 熔点：N/A	1006327-23-6	C₂₆H₂₉N₅O
3-(3,4-dimethoxyphenyl)-N-(2-methoxy-5-nitrophenyl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carboxamide	3-(3,4-dimethoxyphenyl)-N-(2-methoxy-5-nitrophenyl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carboxamide	分子量：442.4 密度：N/A 沸点：N/A 熔点：N/A	887885-52-1	C₂₀H₁₈N₄O₈
(Z)-3-phenyl-N-(2-(p-tolyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)acrylamide	(Z)-3-phenyl-N-(2-(p-tolyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)acrylamide	分子量：361.5 密度：N/A 沸点：N/A 熔点：N/A	361172-62-5	C₂₁H₁₉N₃OS
N-(2-chlorobenzyl)-5-(2,4-dioxo-1-(2-oxo-2-(4-phenylpiperazin-1-yl)ethyl)-1,2-dihydroquinazolin-3(4H)-yl)pentanamide	N-(2-chlorobenzyl)-5-(2,4-dioxo-1-(2-oxo-2-(4-phenylpiperazin-1-yl)ethyl)-1,2-dihydroquinazolin-3(4H)-yl)pentanamide	分子量：588.1 密度：N/A 沸点：N/A 熔点：N/A	865655-65-8	C₃₂H₃₄ClN₅O₄
1-(3-(4-(2-methoxyphenyl)piperazin-1-yl)-3-oxopropyl)-4-phenethyl-[1,2,4]triazolo[4,3-a]quinazolin-5(4H)-one	1-(3-(4-(2-methoxyphenyl)piperazin-1-yl)-3-oxopropyl)-4-phenethyl-[1,2,4]triazolo[4,3-a]quinazolin-5(4H)-one	分子量：536.6 密度：N/A 沸点：N/A 熔点：N/A	887224-03-5	C₃₁H₃₂N₆O₃
1-{8-benzoyl-2H,3H-[1,4]dioxino[2,3-g]quinolin-9-yl}-4-phenylpiperazine	1-{8-benzoyl-2H,3H-[1,4]dioxino[2,3-g]quinolin-9-yl}-4-phenylpiperazine	分子量：451.5 密度：N/A 沸点：N/A 熔点：N/A	872205-93-1	C₂₈H₂₅N₃O₃
1-{4-[4-(3-methoxyphenyl)piperazin-1-yl]-4-oxobutyl}-4-methylthieno[2,3-e][1,2,4]triazolo[4,3-a]pyrimidin-5(4H)-one	1-{4-[4-(3-methoxyphenyl)piperazin-1-yl]-4-oxobutyl}-4-methylthieno[2,3-e][1,2,4]triazolo[4,3-a]pyrimidin-5(4H)-one	分子量：466.6 密度：N/A 沸点：N/A 熔点：N/A	887223-42-9	C₂₃H₂₆N₆O₃S
1-(4-(4-(4-methoxyphenyl)piperazin-1-yl)-4-oxobutyl)-4-methylthieno[2,3-e][1,2,4]triazolo[4,3-a]pyrimidin-5(4H)-one	1-(4-(4-(4-methoxyphenyl)piperazin-1-yl)-4-oxobutyl)-4-methylthieno[2,3-e][1,2,4]triazolo[4,3-a]pyrimidin-5(4H)-one	分子量：466.6 密度：N/A 沸点：N/A 熔点：N/A	887223-44-1	C₂₃H₂₆N₆O₃S
ethyl 3-({[4-(2-fluorophenyl)piperazin-1-yl]carbonothioyl}amino)-5-methoxy-1H-indole-2-carboxylate	ethyl 3-({[4-(2-fluorophenyl)piperazin-1-yl]carbonothioyl}amino)-5-methoxy-1H-indole-2-carboxylate	分子量：456.5 密度：N/A 沸点：N/A 熔点：N/A	887223-56-5	C₂₃H₂₅FN₄O₃S