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-Amino-4-(benzo[d][1,3]dioxol-5-yl)-1-(3,4-dimethylphenyl)azetidin-2-one	3-Amino-4-(benzo[d][1,3]dioxol-5-yl)-1-(3,4-dimethylphenyl)azetidin-2-one	分子量：310.3 密度：N/A 沸点：N/A 熔点：N/A	1291489-98-9	C₁₈H₁₈N₂O₃
3-chloro-N-(2-cyclopropyl-1H-benzimidazol-5-yl)benzamide	3-chloro-N-(2-cyclopropyl-1H-benzimidazol-5-yl)benzamide	分子量：311.8 密度：N/A 沸点：N/A 熔点：N/A	1380579-42-9	C₁₇H₁₄ClN₃O
3-Amino-4-(2-chlorophenyl)-1-(3,4-dimethylphenyl)azetidin-2-one	3-Amino-4-(2-chlorophenyl)-1-(3,4-dimethylphenyl)azetidin-2-one	分子量：300.8 密度：N/A 沸点：N/A 熔点：N/A	1291487-99-4	C₁₇H₁₇ClN₂O
[5-(2-Chlorophenyl)furan-2-yl](2-phenylmorpholin-4-yl)methanone	[5-(2-Chlorophenyl)furan-2-yl](2-phenylmorpholin-4-yl)methanone	分子量：367.8 密度：N/A 沸点：N/A 熔点：N/A	1374541-31-7	C₂₁H₁₈ClNO₃
3-Amino-4-(4-chlorophenyl)-1-(3,4-dimethylphenyl)azetidin-2-one	3-Amino-4-(4-chlorophenyl)-1-(3,4-dimethylphenyl)azetidin-2-one	分子量：300.8 密度：N/A 沸点：N/A 熔点：N/A	1291490-71-5	C₁₇H₁₇ClN₂O
N-(5-cyclopentyl-1,3,4-thiadiazol-2-yl)-1-(furan-2-ylmethyl)-5-oxopyrrolidine-3-carboxamide	N-(5-cyclopentyl-1,3,4-thiadiazol-2-yl)-1-(furan-2-ylmethyl)-5-oxopyrrolidine-3-carboxamide	分子量：360.4 密度：N/A 沸点：N/A 熔点：N/A	1374527-99-7	C₁₇H₂₀N₄O₃S
8-(Propan-2-yl)-2-azaspiro[4.5]decane-4-carboxylic acid	8-(Propan-2-yl)-2-azaspiro[4.5]decane-4-carboxylic acid	分子量：225.33 密度：N/A 沸点：N/A 熔点：N/A	1341855-68-2	C₁₃H₂₃NO₂
3-(4-methoxyphenyl)-1-methyl-N-[(2Z)-4-(pyridin-3-yl)-1,3-thiazol-2(3H)-ylidene]-1H-pyrazole-5-carboxamide	3-(4-methoxyphenyl)-1-methyl-N-[(2Z)-4-(pyridin-3-yl)-1,3-thiazol-2(3H)-ylidene]-1H-pyrazole-5-carboxamide	分子量：391.4 密度：N/A 沸点：N/A 熔点：N/A	1374528-00-3	C₂₀H₁₇N₅O₂S
2-[2-(4-benzylpiperazino)-2-oxoethyl]-2,5,6,7,8,9-hexahydro-3H-cyclohepta[c]pyridazin-3-one	2-[2-(4-benzylpiperazino)-2-oxoethyl]-2,5,6,7,8,9-hexahydro-3H-cyclohepta[c]pyridazin-3-one	分子量：380.5 密度：N/A 沸点：N/A 熔点：N/A	1374539-44-2	C₂₂H₂₈N₄O₂
N-[2-(5-chloro-1H-indol-3-yl)ethyl]-3,5-dimethyl-1,2-oxazole-4-carboxamide	N-[2-(5-chloro-1H-indol-3-yl)ethyl]-3,5-dimethyl-1,2-oxazole-4-carboxamide	分子量：317.77 密度：N/A 沸点：N/A 熔点：N/A	1374535-90-6	C₁₆H₁₆ClN₃O₂
N-{[4-(4-methoxyphenyl)tetrahydro-2H-pyran-4-yl]methyl}-2-methyl-4-phenyl-1,3-thiazole-5-carboxamide	N-{[4-(4-methoxyphenyl)tetrahydro-2H-pyran-4-yl]methyl}-2-methyl-4-phenyl-1,3-thiazole-5-carboxamide	分子量：422.5 密度：N/A 沸点：N/A 熔点：N/A	1374519-80-8	C₂₄H₂₆N₂O₃S
2-(3-methyl-2-oxoquinoxalin-1(2H)-yl)-N-(pyridin-4-ylmethyl)acetamide	2-(3-methyl-2-oxoquinoxalin-1(2H)-yl)-N-(pyridin-4-ylmethyl)acetamide	分子量：308.33 密度：N/A 沸点：N/A 熔点：N/A	1374540-14-3	C₁₇H₁₆N₄O₂
N-(2-cyclopropyl-1H-benzimidazol-5-yl)-2-methoxybenzamide	N-(2-cyclopropyl-1H-benzimidazol-5-yl)-2-methoxybenzamide	分子量：307.3 密度：N/A 沸点：N/A 熔点：N/A	1380579-26-9	C₁₈H₁₇N₃O₂
2-(1,3-dioxo-2-azaspiro[4.4]non-2-yl)-N-(1-methyl-1H-indol-4-yl)acetamide	2-(1,3-dioxo-2-azaspiro[4.4]non-2-yl)-N-(1-methyl-1H-indol-4-yl)acetamide	分子量：339.4 密度：N/A 沸点：N/A 熔点：N/A	1401605-84-2	C₁₉H₂₁N₃O₃
N~3~-(2-chloro-7H-purin-6-yl)-N-(3,4-dihydro-2H-1,5-benzodioxepin-7-yl)-beta-alaninamide	N~3~-(2-chloro-7H-purin-6-yl)-N-(3,4-dihydro-2H-1,5-benzodioxepin-7-yl)-beta-alaninamide	分子量：388.8 密度：N/A 沸点：N/A 熔点：N/A	1351699-43-8	C₁₇H₁₇ClN₆O₃
4-(6-methoxy[1,2,4]triazolo[4,3-b]pyridazin-3-yl)-N-[3-(methylsulfanyl)phenyl]butanamide	4-(6-methoxy[1,2,4]triazolo[4,3-b]pyridazin-3-yl)-N-[3-(methylsulfanyl)phenyl]butanamide	分子量：357.4 密度：N/A 沸点：N/A 熔点：N/A	1351693-12-3	C₁₇H₁₉N₅O₂S
N-benzyl-4-(6-methoxy-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)-N-methylbutanamide	N-benzyl-4-(6-methoxy-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)-N-methylbutanamide	分子量：339.4 密度：N/A 沸点：N/A 熔点：N/A	1374526-84-7	C₁₈H₂₁N₅O₂
(8-fluoro-1,3,4,5-tetrahydro-2H-pyrido[4,3-b]indol-2-yl)[4-methyl-2-(1H-pyrrol-1-yl)-1,3-thiazol-5-yl]methanone	(8-fluoro-1,3,4,5-tetrahydro-2H-pyrido[4,3-b]indol-2-yl)[4-methyl-2-(1H-pyrrol-1-yl)-1,3-thiazol-5-yl]methanone	分子量：380.4 密度：N/A 沸点：N/A 熔点：N/A	1351680-58-4	C₂₀H₁₇FN₄OS
N-(2,2-dimethyltetrahydro-2H-pyran-4-yl)-2-(3-oxo-3,5,6,7,8,9-hexahydro-2H-cyclohepta[c]pyridazin-2-yl)acetamide	N-(2,2-dimethyltetrahydro-2H-pyran-4-yl)-2-(3-oxo-3,5,6,7,8,9-hexahydro-2H-cyclohepta[c]pyridazin-2-yl)acetamide	分子量：333.4 密度：N/A 沸点：N/A 熔点：N/A	1374544-30-5	C₁₈H₂₇N₃O₃
2-(morpholin-4-ylmethyl)-5,6,7,8-tetrahydrocinnolin-3(2H)-one	2-(morpholin-4-ylmethyl)-5,6,7,8-tetrahydrocinnolin-3(2H)-one	分子量：249.31 密度：N/A 沸点：N/A 熔点：N/A	1374537-63-9	C₁₃H₁₉N₃O₂
3-(2-chlorophenyl)-1-methyl-N-(5-methyl-1,3,4-thiadiazol-2-yl)-1H-pyrazole-5-carboxamide	3-(2-chlorophenyl)-1-methyl-N-(5-methyl-1,3,4-thiadiazol-2-yl)-1H-pyrazole-5-carboxamide	分子量：333.8 密度：N/A 沸点：N/A 熔点：N/A	1374542-07-0	C₁₄H₁₂ClN₅OS
2-(2,2-dimethyl-3,4-dihydro-2H-chromen-6-yl)-N-[4-(1,1-dioxido-1,2-thiazolidin-2-yl)phenyl]acetamide	2-(2,2-dimethyl-3,4-dihydro-2H-chromen-6-yl)-N-[4-(1,1-dioxido-1,2-thiazolidin-2-yl)phenyl]acetamide	分子量：414.5 密度：N/A 沸点：N/A 熔点：N/A	1401540-71-3	C₂₂H₂₆N₂O₄S
4-(3-chlorophenyl)-N-{2-[(2-hydroxyphenyl)amino]-2-oxoethyl}piperazine-1-carboxamide	4-(3-chlorophenyl)-N-{2-[(2-hydroxyphenyl)amino]-2-oxoethyl}piperazine-1-carboxamide	分子量：388.8 密度：N/A 沸点：N/A 熔点：N/A	1351697-49-8	C₁₉H₂₁ClN₄O₃
ethyl [2-({[3-(4-chlorophenyl)-1-methyl-1H-pyrazol-5-yl]carbonyl}amino)-1,3-thiazol-4-yl]acetate	ethyl [2-({[3-(4-chlorophenyl)-1-methyl-1H-pyrazol-5-yl]carbonyl}amino)-1,3-thiazol-4-yl]acetate	分子量：404.9 密度：N/A 沸点：N/A 熔点：N/A	1374515-18-0	C₁₈H₁₇ClN₄O₃S
N-(pyridin-3-yl)-4-([1,2,4]triazolo[4,3-a]pyridin-3-yl)butanamide	N-(pyridin-3-yl)-4-([1,2,4]triazolo[4,3-a]pyridin-3-yl)butanamide	分子量：281.31 密度：N/A 沸点：N/A 熔点：N/A	1351688-56-6	C₁₅H₁₅N₅O
3-(3-methoxy-1,2-oxazol-5-yl)-N-(2,3,4-trifluorophenyl)propanamide	3-(3-methoxy-1,2-oxazol-5-yl)-N-(2,3,4-trifluorophenyl)propanamide	分子量：300.23 密度：N/A 沸点：N/A 熔点：N/A	1401603-30-2	C₁₃H₁₁F₃N₂O₃
4-benzyl-N-{2-[(2-methoxyphenyl)amino]-2-oxoethyl}piperazine-1-carboxamide	4-benzyl-N-{2-[(2-methoxyphenyl)amino]-2-oxoethyl}piperazine-1-carboxamide	分子量：382.5 密度：N/A 沸点：N/A 熔点：N/A	1401600-49-4	C₂₁H₂₆N₄O₃
4-(1,2-benzothiazol-3-yl)-N-{2-oxo-2-[(pyridin-3-ylmethyl)amino]ethyl}piperazine-1-carboxamide	4-(1,2-benzothiazol-3-yl)-N-{2-oxo-2-[(pyridin-3-ylmethyl)amino]ethyl}piperazine-1-carboxamide	分子量：410.5 密度：N/A 沸点：N/A 熔点：N/A	1351700-72-5	C₂₀H₂₂N₆O₂S
3-(3-methoxy-1,2-oxazol-5-yl)-N-(1-methyl-1H-pyrazol-4-yl)propanamide	3-(3-methoxy-1,2-oxazol-5-yl)-N-(1-methyl-1H-pyrazol-4-yl)propanamide	分子量：250.25 密度：N/A 沸点：N/A 熔点：N/A	1401589-51-2	C₁₁H₁₄N₄O₃
N-(1H-indol-4-yl)-3-(3-phenyl-1,2,4-oxadiazol-5-yl)propanamide	N-(1H-indol-4-yl)-3-(3-phenyl-1,2,4-oxadiazol-5-yl)propanamide	分子量：332.4 密度：N/A 沸点：N/A 熔点：N/A	1374525-49-1	C₁₉H₁₆N₄O₂
tert-butyl 4-(1H-indol-1-ylacetyl)piperazine-1-carboxylate	tert-butyl 4-(1H-indol-1-ylacetyl)piperazine-1-carboxylate	分子量：343.4 密度：N/A 沸点：N/A 熔点：N/A	1351698-24-2	C₁₉H₂₅N₃O₃
4-(1-methyl-1H-indol-3-yl)-N-(pyridin-4-yl)butanamide	4-(1-methyl-1H-indol-3-yl)-N-(pyridin-4-yl)butanamide	分子量：293.4 密度：N/A 沸点：N/A 熔点：N/A	1374537-31-1	C₁₈H₁₉N₃O
4-(4-oxo-1,2,3-benzotriazin-3(4H)-yl)-N-[3-([1,2,4]triazolo[4,3-a]pyridin-3-yl)propyl]butanamide	4-(4-oxo-1,2,3-benzotriazin-3(4H)-yl)-N-[3-([1,2,4]triazolo[4,3-a]pyridin-3-yl)propyl]butanamide	分子量：391.4 密度：N/A 沸点：N/A 熔点：N/A	1374521-94-4	C₂₀H₂₁N₇O₂
6-(furan-2-yl)-2-(piperidin-1-ylmethyl)pyridazin-3(2H)-one	6-(furan-2-yl)-2-(piperidin-1-ylmethyl)pyridazin-3(2H)-one	分子量：259.30 密度：N/A 沸点：N/A 熔点：N/A	1351694-41-1	C₁₄H₁₇N₃O₂
2-[(4-benzylpiperazin-1-yl)methyl]-6-(2-fluorophenyl)pyridazin-3(2H)-one	2-[(4-benzylpiperazin-1-yl)methyl]-6-(2-fluorophenyl)pyridazin-3(2H)-one	分子量：378.4 密度：N/A 沸点：N/A 熔点：N/A	1374546-95-8	C₂₂H₂₃FN₄O
N-(1H-benzo[d]imidazol-2-yl)-5-isopropyl-2-methylthiazole-4-carboxamide	N-(1H-benzo[d]imidazol-2-yl)-5-isopropyl-2-methylthiazole-4-carboxamide	分子量：300.4 密度：N/A 沸点：N/A 熔点：N/A	1351683-44-7	C₁₅H₁₆N₄OS
N-[2-(1H-imidazol-4-yl)ethyl]-5-isopropyl-2-methyl-1,3-thiazole-4-carboxamide	N-[2-(1H-imidazol-4-yl)ethyl]-5-isopropyl-2-methyl-1,3-thiazole-4-carboxamide	分子量：278.38 密度：N/A 沸点：N/A 熔点：N/A	1351694-38-6	C₁₃H₁₈N₄OS
N-[2-(5-methoxy-1H-indol-1-yl)ethyl]-3,4-dimethyl-2-(1H-tetrazol-1-yl)benzamide	N-[2-(5-methoxy-1H-indol-1-yl)ethyl]-3,4-dimethyl-2-(1H-tetrazol-1-yl)benzamide	分子量：390.4 密度：N/A 沸点：N/A 熔点：N/A	1351689-76-3	C₂₁H₂₂N₆O₂
1-(6-chloropyridazin-3-yl)-N-(2-(5-methoxy-1H-indol-3-yl)ethyl)piperidine-3-carboxamide	1-(6-chloropyridazin-3-yl)-N-(2-(5-methoxy-1H-indol-3-yl)ethyl)piperidine-3-carboxamide	分子量：413.9 密度：N/A 沸点：N/A 熔点：N/A	1401560-86-8	C₂₁H₂₄ClN₅O₂
N-(3-bromophenyl)-4-(6-methoxy-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)butanamide	N-(3-bromophenyl)-4-(6-methoxy-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)butanamide	分子量：390.23 密度：N/A 沸点：N/A 熔点：N/A	1351703-72-4	C₁₆H₁₆BrN₅O₂
N-[3-(1H-1,2,4-triazol-3-yl)phenyl]tetrazolo[1,5-a]pyridine-6-carboxamide	N-[3-(1H-1,2,4-triazol-3-yl)phenyl]tetrazolo[1,5-a]pyridine-6-carboxamide	分子量：306.28 密度：N/A 沸点：N/A 熔点：N/A	1401603-14-2	C₁₄H₁₀N₈O
N-(1-benzyl-4-piperidyl)-3-(4-chlorophenyl)-1-methyl-1H-pyrazole-5-carboxamide	N-(1-benzyl-4-piperidyl)-3-(4-chlorophenyl)-1-methyl-1H-pyrazole-5-carboxamide	分子量：408.9 密度：N/A 沸点：N/A 熔点：N/A	1374529-93-7	C₂₃H₂₅ClN₄O
N-(2-{[2-(3-fluorophenyl)ethyl]amino}-2-oxoethyl)-4-(pyrimidin-2-yl)piperazine-1-carboxamide	N-(2-{[2-(3-fluorophenyl)ethyl]amino}-2-oxoethyl)-4-(pyrimidin-2-yl)piperazine-1-carboxamide	分子量：386.4 密度：N/A 沸点：N/A 熔点：N/A	1351695-92-5	C₁₉H₂₃FN₆O₂
(5,7-dioxo-5,7-dihydro-6H-pyrrolo[3,4-b]pyrazin-6-yl)(phenyl)acetic acid	(5,7-dioxo-5,7-dihydro-6H-pyrrolo[3,4-b]pyrazin-6-yl)(phenyl)acetic acid	分子量：283.24 密度：N/A 沸点：N/A 熔点：N/A	96983-28-7	C₁₄H₉N₃O₄
2-[6-(benzyloxy)-1H-indol-1-yl]-N-(1,3-thiazol-2-yl)acetamide	2-[6-(benzyloxy)-1H-indol-1-yl]-N-(1,3-thiazol-2-yl)acetamide	分子量：363.4 密度：N/A 沸点：N/A 熔点：N/A	1374521-53-5	C₂₀H₁₇N₃O₂S
2-(1-((1H-tetrazol-1-yl)methyl)cyclohexyl)-N-(5,6-dihydro-4H-cyclopenta[d]thiazol-2-yl)acetamide	2-(1-((1H-tetrazol-1-yl)methyl)cyclohexyl)-N-(5,6-dihydro-4H-cyclopenta[d]thiazol-2-yl)acetamide	分子量：346.5 密度：N/A 沸点：N/A 熔点：N/A	1380585-02-3	C₁₆H₂₂N₆OS
2-Chloro-N-(1-methyl-1H-pyrazol-4-yl)-4-pyridinamine	2-Chloro-N-(1-methyl-1H-pyrazol-4-yl)-4-pyridinamine	分子量：208.65 密度：N/A 沸点：N/A 熔点：N/A	1596090-12-8	C₉H₉ClN₄
7-chloro-N-(1,5-dimethyl-1H-pyrazol-3-yl)-1-benzothiophene-2-carboxamide	7-chloro-N-(1,5-dimethyl-1H-pyrazol-3-yl)-1-benzothiophene-2-carboxamide	分子量：305.8 密度：N/A 沸点：N/A 熔点：N/A	1374548-21-6	C₁₄H₁₂ClN₃OS
3-(3-methoxy-1,2-oxazol-5-yl)-N-(5-methyl-1,3-thiazol-2-yl)propanamide	3-(3-methoxy-1,2-oxazol-5-yl)-N-(5-methyl-1,3-thiazol-2-yl)propanamide	分子量：267.31 密度：N/A 沸点：N/A 熔点：N/A	1401587-91-4	C₁₁H₁₃N₃O₃S
2-(4-oxo-1,2,3-benzotriazin-3(4H)-yl)-N-[3-([1,2,4]triazolo[4,3-a]pyridin-3-yl)propyl]acetamide	2-(4-oxo-1,2,3-benzotriazin-3(4H)-yl)-N-[3-([1,2,4]triazolo[4,3-a]pyridin-3-yl)propyl]acetamide	分子量：363.4 密度：N/A 沸点：N/A 熔点：N/A	1374512-93-2	C₁₈H₁₇N₇O₂