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-Methoxy-5-(2,3,4-trifluorophenyl)pyridine	3-Methoxy-5-(2,3,4-trifluorophenyl)pyridine	分子量：239.19 密度：N/A 沸点：N/A 熔点：N/A	2138392-47-7	C₁₂H₈F₃NO
3-{[1-(5-Bromopyridin-2-yl)piperidin-4-yl]methyl}-2-methyl-3,4-dihydroquinazolin-4-one	3-{[1-(5-Bromopyridin-2-yl)piperidin-4-yl]methyl}-2-methyl-3,4-dihydroquinazolin-4-one	分子量：413.3 密度：N/A 沸点：N/A 熔点：N/A	2742034-76-8	C₂₀H₂₁BrN₄O
2-[4-(6-fluoro-1,2-benzoxazol-3-yl)piperidin-1-yl]-4H-pyrido[1,2-a]pyrimidin-4-one	2-[4-(6-fluoro-1,2-benzoxazol-3-yl)piperidin-1-yl]-4H-pyrido[1,2-a]pyrimidin-4-one	分子量：364.4 密度：N/A 沸点：N/A 熔点：N/A	2741909-02-2	C₂₀H₁₇FN₄O₂
2-[4-(5-chloro-1,3-benzoxazol-2-yl)piperazin-1-yl]-N-(propan-2-yl)propanamide	2-[4-(5-chloro-1,3-benzoxazol-2-yl)piperazin-1-yl]-N-(propan-2-yl)propanamide	分子量：350.8 密度：N/A 沸点：N/A 熔点：N/A	2741894-44-8	C₁₇H₂₃ClN₄O₂
1-(3-{2-[(2-Methoxyethyl)amino]pyrimidin-5-yl}phenyl)ethan-1-one	1-(3-{2-[(2-Methoxyethyl)amino]pyrimidin-5-yl}phenyl)ethan-1-one	分子量：271.31 密度：N/A 沸点：N/A 熔点：N/A	2741943-43-9	C₁₅H₁₇N₃O₂
2-[5-(6-Fluoro-1,3-benzothiazol-2-yl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]pyridine-3-carbonitrile	2-[5-(6-Fluoro-1,3-benzothiazol-2-yl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]pyridine-3-carbonitrile	分子量：365.4 密度：N/A 沸点：N/A 熔点：N/A	2742061-73-8	C₁₉H₁₆FN₅S
7-Fluoro-3-({1-[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]piperidin-4-yl}methyl)-3,4-dihydroquinazolin-4-one	7-Fluoro-3-({1-[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]piperidin-4-yl}methyl)-3,4-dihydroquinazolin-4-one	分子量：410.5 密度：N/A 沸点：N/A 熔点：N/A	2742038-04-4	C₂₃H₂₇FN₄O₂
3-methyl-2-[4-(trifluoromethyl)piperidin-1-yl]-3H,4H-thieno[3,2-d]pyrimidin-4-one	3-methyl-2-[4-(trifluoromethyl)piperidin-1-yl]-3H,4H-thieno[3,2-d]pyrimidin-4-one	分子量：317.33 密度：N/A 沸点：N/A 熔点：N/A	2742038-15-7	C₁₃H₁₄F₃N₃OS
4-Phenyl-1-(pyrimidin-4-yl)piperidine-4-carbonitrile	4-Phenyl-1-(pyrimidin-4-yl)piperidine-4-carbonitrile	分子量：264.32 密度：N/A 沸点：N/A 熔点：N/A	2742007-49-2	C₁₆H₁₆N₄
N-(4-chloro-2-fluorophenyl)-9-ethyl-9H-purin-6-amine	N-(4-chloro-2-fluorophenyl)-9-ethyl-9H-purin-6-amine	分子量：291.71 密度：N/A 沸点：N/A 熔点：N/A	2742064-69-1	C₁₃H₁₁ClFN₅
2-[4-(6-fluoro-1,3-benzothiazol-2-yl)piperazin-1-yl]-N-(propan-2-yl)propanamide	2-[4-(6-fluoro-1,3-benzothiazol-2-yl)piperazin-1-yl]-N-(propan-2-yl)propanamide	分子量：350.5 密度：N/A 沸点：N/A 熔点：N/A	2741889-10-9	C₁₇H₂₃FN₄OS
6-chloro-2-{1-[(1,2-dimethyl-1H-imidazol-4-yl)sulfonyl]piperidin-4-yl}-1,8-naphthyridine	6-chloro-2-{1-[(1,2-dimethyl-1H-imidazol-4-yl)sulfonyl]piperidin-4-yl}-1,8-naphthyridine	分子量：405.9 密度：N/A 沸点：N/A 熔点：N/A	2741896-60-4	C₁₈H₂₀ClN₅O₂S
3-Nitro-8lambda6-thiabicyclo[3.2.1]octane-8,8-dione	3-Nitro-8lambda6-thiabicyclo[3.2.1]octane-8,8-dione	分子量：205.23 密度：N/A 沸点：N/A 熔点：N/A	2172032-27-6	C₇H₁₁NO₄S
3-(4-Imidazo[1,2-b]pyridazin-6-ylpiperazin-1-yl)-1,2-benzothiazole 1,1-dioxide	3-(4-Imidazo[1,2-b]pyridazin-6-ylpiperazin-1-yl)-1,2-benzothiazole 1,1-dioxide	分子量：368.4 密度：N/A 沸点：N/A 熔点：N/A	2741943-82-6	C₁₇H₁₆N₆O₂S
6-(difluoromethyl)-2-(4-{1H-pyrazolo[3,4-d]pyrimidin-4-yl}piperazin-1-yl)-3,4-dihydropyrimidin-4-one	6-(difluoromethyl)-2-(4-{1H-pyrazolo[3,4-d]pyrimidin-4-yl}piperazin-1-yl)-3,4-dihydropyrimidin-4-one	分子量：348.31 密度：N/A 沸点：N/A 熔点：N/A	2741948-77-4	C₁₄H₁₄F₂N₈O
1-[2-Hydroxy-4-(methoxymethyl)cyclopentyl]cyclopropane-1-sulfonyl chloride	1-[2-Hydroxy-4-(methoxymethyl)cyclopentyl]cyclopropane-1-sulfonyl chloride	分子量：268.76 密度：N/A 沸点：N/A 熔点：N/A	2138033-41-5	C₁₀H₁₇ClO₄S
9-cyclopropyl-6-{4-[(2,5-difluorophenyl)methyl]piperazin-1-yl}-9H-purine	9-cyclopropyl-6-{4-[(2,5-difluorophenyl)methyl]piperazin-1-yl}-9H-purine	分子量：370.4 密度：N/A 沸点：N/A 熔点：N/A	2741948-69-4	C₁₉H₂₀F₂N₆
2-[4-(5-ethyl-2,6-dimethylpyrimidin-4-yl)piperazin-1-yl]-1H-1,3-benzodiazole	2-[4-(5-ethyl-2,6-dimethylpyrimidin-4-yl)piperazin-1-yl]-1H-1,3-benzodiazole	分子量：336.4 密度：N/A 沸点：N/A 熔点：N/A	2742041-29-6	C₁₉H₂₄N₆
1-{2,5-Dimethylpyrazolo[1,5-a]pyrimidin-7-yl}-4-{imidazo[1,2-b]pyridazin-6-yl}piperazine	1-{2,5-Dimethylpyrazolo[1,5-a]pyrimidin-7-yl}-4-{imidazo[1,2-b]pyridazin-6-yl}piperazine	分子量：348.4 密度：N/A 沸点：N/A 熔点：N/A	2742042-14-2	C₁₈H₂₀N₈
1-{Imidazo[1,2-b]pyridazin-6-yl}-4-{5-methylpyrazolo[1,5-a]pyrimidin-7-yl}-1,4-diazepane	1-{Imidazo[1,2-b]pyridazin-6-yl}-4-{5-methylpyrazolo[1,5-a]pyrimidin-7-yl}-1,4-diazepane	分子量：348.4 密度：N/A 沸点：N/A 熔点：N/A	2742064-98-6	C₁₈H₂₀N₈
3-fluoro-1-(6-fluoro-1,3-benzothiazol-2-yl)-N-(pyridin-3-yl)pyrrolidine-3-carboxamide	3-fluoro-1-(6-fluoro-1,3-benzothiazol-2-yl)-N-(pyridin-3-yl)pyrrolidine-3-carboxamide	分子量：360.4 密度：N/A 沸点：N/A 熔点：N/A	2742041-36-5	C₁₇H₁₄F₂N₄OS
4-[4-(6-Cyclopropyl-2-methylpyrimidin-4-yl)piperazin-1-yl]quinoline	4-[4-(6-Cyclopropyl-2-methylpyrimidin-4-yl)piperazin-1-yl]quinoline	分子量：345.4 密度：N/A 沸点：N/A 熔点：N/A	2742059-07-8	C₂₁H₂₃N₅
1-{2,5-Dimethylpyrazolo[1,5-a]pyrimidin-7-yl}-4-{imidazo[1,2-b]pyridazin-6-yl}-1,4-diazepane	1-{2,5-Dimethylpyrazolo[1,5-a]pyrimidin-7-yl}-4-{imidazo[1,2-b]pyridazin-6-yl}-1,4-diazepane	分子量：362.4 密度：N/A 沸点：N/A 熔点：N/A	2741929-13-3	C₁₉H₂₂N₈
N-(3-methoxyphenyl)-2-[2-(thiomorpholine-4-carbonyl)morpholin-4-yl]acetamide	N-(3-methoxyphenyl)-2-[2-(thiomorpholine-4-carbonyl)morpholin-4-yl]acetamide	分子量：379.5 密度：N/A 沸点：N/A 熔点：N/A	2741955-78-0	C₁₈H₂₅N₃O₄S
6-Chloro-2-(4-{imidazo[1,2-b]pyridazin-6-yl}piperazin-1-yl)-1,3-benzothiazole	6-Chloro-2-(4-{imidazo[1,2-b]pyridazin-6-yl}piperazin-1-yl)-1,3-benzothiazole	分子量：370.9 密度：N/A 沸点：N/A 熔点：N/A	2742043-97-4	C₁₇H₁₅ClN₆S
1-[2-(1,2-Thiazol-5-yl)ethyl]cyclopropane-1-sulfonyl chloride	1-[2-(1,2-Thiazol-5-yl)ethyl]cyclopropane-1-sulfonyl chloride	分子量：251.8 密度：N/A 沸点：N/A 熔点：N/A	2138104-01-3	C₈H₁₀ClNO₂S₂
N-[(4-methylphenyl)methyl]-2-[2-(piperidine-1-carbonyl)morpholin-4-yl]acetamide	N-[(4-methylphenyl)methyl]-2-[2-(piperidine-1-carbonyl)morpholin-4-yl]acetamide	分子量：359.5 密度：N/A 沸点：N/A 熔点：N/A	2741931-77-9	C₂₀H₂₉N₃O₃
4-ethyl-3-(1-methyl-1H-imidazol-2-yl)cyclohexan-1-one	4-ethyl-3-(1-methyl-1H-imidazol-2-yl)cyclohexan-1-one	分子量：206.28 密度：N/A 沸点：N/A 熔点：N/A	2138120-74-6	C₁₂H₁₈N₂O
N-(4-fluorophenyl)-2-[3-(thiomorpholine-4-carbonyl)piperidin-1-yl]acetamide	N-(4-fluorophenyl)-2-[3-(thiomorpholine-4-carbonyl)piperidin-1-yl]acetamide	分子量：365.5 密度：N/A 沸点：N/A 熔点：N/A	2741922-28-9	C₁₈H₂₄FN₃O₂S
6-Chloro-2-(4-{imidazo[1,2-b]pyridazin-6-yl}-1,4-diazepan-1-yl)-1,3-benzothiazole	6-Chloro-2-(4-{imidazo[1,2-b]pyridazin-6-yl}-1,4-diazepan-1-yl)-1,3-benzothiazole	分子量：384.9 密度：N/A 沸点：N/A 熔点：N/A	2742068-31-9	C₁₈H₁₇ClN₆S
1-(butan-2-yl)-5-(1-methyl-1H-pyrazol-5-yl)-1H-1,2,3-triazol-4-amine	1-(butan-2-yl)-5-(1-methyl-1H-pyrazol-5-yl)-1H-1,2,3-triazol-4-amine	分子量：220.27 密度：N/A 沸点：N/A 熔点：N/A	2137541-37-6	C₁₀H₁₆N₆
1,3,6-Trimethyl-2-oxo-1,2-dihydroquinoline-4-carboxylic acid	1,3,6-Trimethyl-2-oxo-1,2-dihydroquinoline-4-carboxylic acid	分子量：231.25 密度：N/A 沸点：N/A 熔点：N/A	2137798-29-7	C₁₃H₁₃NO₃
N-[2-chloro-5-(trifluoromethyl)phenyl]-2-[4-(cyclopropanesulfonyl)piperazin-1-yl]acetamide	N-[2-chloro-5-(trifluoromethyl)phenyl]-2-[4-(cyclopropanesulfonyl)piperazin-1-yl]acetamide	分子量：425.9 密度：N/A 沸点：N/A 熔点：N/A	2742010-68-8	C₁₆H₁₉ClF₃N₃O₃S
4-Chloro-2-(4-{imidazo[1,2-b]pyridazin-6-yl}-1,4-diazepan-1-yl)-1,3-benzothiazole	4-Chloro-2-(4-{imidazo[1,2-b]pyridazin-6-yl}-1,4-diazepan-1-yl)-1,3-benzothiazole	分子量：384.9 密度：N/A 沸点：N/A 熔点：N/A	2742060-29-1	C₁₈H₁₇ClN₆S
2-{3-[(5-methoxypyrimidin-2-yl)oxy]pyrrolidin-1-yl}-N-(4-methylphenyl)acetamide	2-{3-[(5-methoxypyrimidin-2-yl)oxy]pyrrolidin-1-yl}-N-(4-methylphenyl)acetamide	分子量：342.4 密度：N/A 沸点：N/A 熔点：N/A	2741918-57-8	C₁₈H₂₂N₄O₃
[4-([1,3]Dioxolo[4,5-f][1,3]benzothiazol-6-yl)morpholin-2-yl]-pyrrolidin-1-ylmethanone	[4-([1,3]Dioxolo[4,5-f][1,3]benzothiazol-6-yl)morpholin-2-yl]-pyrrolidin-1-ylmethanone	分子量：361.4 密度：N/A 沸点：N/A 熔点：N/A	2741929-26-8	C₁₇H₁₉N₃O₄S
2-{4-[(5-chloropyrimidin-2-yl)(methyl)amino]piperidin-1-yl}-N-[(4-methylphenyl)methyl]acetamide	2-{4-[(5-chloropyrimidin-2-yl)(methyl)amino]piperidin-1-yl}-N-[(4-methylphenyl)methyl]acetamide	分子量：387.9 密度：N/A 沸点：N/A 熔点：N/A	2741939-58-0	C₂₀H₂₆ClN₅O
N-cyclohexyl-2-{4-[(7-methoxy-4-oxo-3,4-dihydroquinazolin-3-yl)methyl]piperidin-1-yl}acetamide	N-cyclohexyl-2-{4-[(7-methoxy-4-oxo-3,4-dihydroquinazolin-3-yl)methyl]piperidin-1-yl}acetamide	分子量：412.5 密度：N/A 沸点：N/A 熔点：N/A	2741901-07-3	C₂₃H₃₂N₄O₃
N-[(4-methylphenyl)methyl]-2-[2-(thiomorpholine-4-carbonyl)morpholin-4-yl]acetamide	N-[(4-methylphenyl)methyl]-2-[2-(thiomorpholine-4-carbonyl)morpholin-4-yl]acetamide	分子量：377.5 密度：N/A 沸点：N/A 熔点：N/A	2742037-41-6	C₁₉H₂₇N₃O₃S
1-(Cyclopropanesulfonyl)-4-[(naphthalen-2-yl)methyl]-1,4-diazepane	1-(Cyclopropanesulfonyl)-4-[(naphthalen-2-yl)methyl]-1,4-diazepane	分子量：344.5 密度：N/A 沸点：N/A 熔点：N/A	2742044-93-3	C₁₉H₂₄N₂O₂S
6-Chloro-2-[1-(quinoxaline-6-carbonyl)piperidin-4-yl]-1,8-naphthyridine	6-Chloro-2-[1-(quinoxaline-6-carbonyl)piperidin-4-yl]-1,8-naphthyridine	分子量：403.9 密度：N/A 沸点：N/A 熔点：N/A	2742044-98-8	C₂₂H₁₈ClN₅O
3-methyl-2-{3-[methyl(5-methylpyrimidin-2-yl)amino]piperidin-1-yl}-3H,4H-thieno[3,2-d]pyrimidin-4-one	3-methyl-2-{3-[methyl(5-methylpyrimidin-2-yl)amino]piperidin-1-yl}-3H,4H-thieno[3,2-d]pyrimidin-4-one	分子量：370.5 密度：N/A 沸点：N/A 熔点：N/A	2742061-43-2	C₁₈H₂₂N₆OS
(4R,5R)-6-bromo-1-(4-methylphenyl)sulfonyl-9-oxa-1-azaspiro[4.5]decan-4-ol	(4R,5R)-6-bromo-1-(4-methylphenyl)sulfonyl-9-oxa-1-azaspiro[4.5]decan-4-ol	分子量：390.3 密度：N/A 沸点：N/A 熔点：N/A	117754-65-1	C₁₅H₂₀BrNO₄S
methyl (4R)-4-[(3R,5R,6E,8R,9S,10R,12S,13R,14S,17R)-6-ethylidene-3,12-dihydroxy-10,13-dimethyl-7-oxo-2,3,4,5,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl]pentanoate	methyl (4R)-4-[(3R,5R,6E,8R,9S,10R,12S,13R,14S,17R)-6-ethylidene-3,12-dihydroxy-10,13-dimethyl-7-oxo-2,3,4,5,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl]pentanoate	分子量：446.6 密度：N/A 沸点：N/A 熔点：N/A	1198787-01-7	C₂₇H₄₂O₅
N-[1-({[3-(trifluoromethyl)phenyl]carbamoyl}methyl)piperidin-3-yl]cyclopropanecarboxamide	N-[1-({[3-(trifluoromethyl)phenyl]carbamoyl}methyl)piperidin-3-yl]cyclopropanecarboxamide	分子量：369.4 密度：N/A 沸点：N/A 熔点：N/A	2742033-24-3	C₁₈H₂₂F₃N₃O₂
2-[4-(cyclopropanesulfonyl)-1,4-diazepan-1-yl]-N-(2-fluorophenyl)acetamide	2-[4-(cyclopropanesulfonyl)-1,4-diazepan-1-yl]-N-(2-fluorophenyl)acetamide	分子量：355.4 密度：N/A 沸点：N/A 熔点：N/A	2741919-88-8	C₁₆H₂₂FN₃O₃S
5-methyl-octahydro-1H-pyrrolo[3,4-c]pyridin-3-one	5-methyl-octahydro-1H-pyrrolo[3,4-c]pyridin-3-one	分子量：154.21 密度：N/A 沸点：N/A 熔点：N/A	2137691-91-7	C₈H₁₄N₂O
Benzyl (3RS, 4RS)-1-benzyl-3-[2-(tert-butoxy)-2-oxoethyl]-4-methylpyrrolidine-3-carboxylate	Benzyl (3RS, 4RS)-1-benzyl-3-[2-(tert-butoxy)-2-oxoethyl]-4-methylpyrrolidine-3-carboxylate	分子量：423.5 密度：N/A 沸点：N/A 熔点：N/A	1427058-46-5	C₂₆H₃₃NO₄
benzyl N-[(2S)-5-bromo-1-oxopentan-2-yl]-N-(phenylmethoxycarbonylamino)carbamate	benzyl N-[(2S)-5-bromo-1-oxopentan-2-yl]-N-(phenylmethoxycarbonylamino)carbamate	分子量：463.3 密度：N/A 沸点：N/A 熔点：N/A	1449601-29-9	C₂₁H₂₃BrN₂O₅
(1R,3S,5E)-5-[(2Z)-2-[(1R,3aS,7aR)-1-[(E,2R)-5-(2-hydroxy-2-methylpropoxy)pent-3-en-2-yl]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexane-1,3-diol	(1R,3S,5E)-5-[(2Z)-2-[(1R,3aS,7aR)-1-[(E,2R)-5-(2-hydroxy-2-methylpropoxy)pent-3-en-2-yl]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexane-1,3-diol	分子量：444.6 密度：N/A 沸点：N/A 熔点：N/A	153364-87-5	C₂₈H₄₄O₄