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
2-[[4-(1-Methyl-1H-pyrazol-5-yl)-6-(trifluoromethyl)-2-pyrimidinyl]thio]acetic acid	2-[[4-(1-Methyl-1H-pyrazol-5-yl)-6-(trifluoromethyl)-2-pyrimidinyl]thio]acetic acid	分子量：318.28 密度：N/A 沸点：N/A 熔点：N/A	1006486-87-8	C₁₁H₉F₃N₄O₂S
4-(1-ethyl-3-methyl-1H-pyrazol-4-yl)-2-(ethylsulfonyl)-6-(trifluoromethyl)pyrimidine	4-(1-ethyl-3-methyl-1H-pyrazol-4-yl)-2-(ethylsulfonyl)-6-(trifluoromethyl)pyrimidine	分子量：348.35 密度：N/A 沸点：N/A 熔点：N/A	1006486-96-9	C₁₃H₁₅F₃N₄O₂S
2-phenyl-N-[(pyridin-3-yl)methyl]ethene-1-sulfonamide	2-phenyl-N-[(pyridin-3-yl)methyl]ethene-1-sulfonamide	分子量：274.34 密度：N/A 沸点：N/A 熔点：N/A	924709-95-5	C₁₄H₁₄N₂O₂S
N-(2-butan-2-ylphenyl)-3-(tetrazol-1-yl)benzamide	N-(2-butan-2-ylphenyl)-3-(tetrazol-1-yl)benzamide	分子量：321.4 密度：N/A 沸点：N/A 熔点：N/A	924379-30-6	C₁₈H₁₉N₅O
2-(4-chlorophenoxy)-N-(4-ethyl-4-methyl-2,5-dioxoimidazolidin-1-yl)propanamide	2-(4-chlorophenoxy)-N-(4-ethyl-4-methyl-2,5-dioxoimidazolidin-1-yl)propanamide	分子量：339.77 密度：N/A 沸点：N/A 熔点：N/A	956365-05-2	C₁₅H₁₈ClN₃O₄
N-(3-Aminopropyl)-5-cyclopropyl-3-(trifluoromethyl)-1H-pyrazole-1-acetamide	N-(3-Aminopropyl)-5-cyclopropyl-3-(trifluoromethyl)-1H-pyrazole-1-acetamide	分子量：290.28 密度：N/A 沸点：N/A 熔点：N/A	1006442-37-0	C₁₂H₁₇F₃N₄O
N-(3-Aminopropyl)-3-(trifluoromethyl)-1H-pyrazole-1-acetamide	N-(3-Aminopropyl)-3-(trifluoromethyl)-1H-pyrazole-1-acetamide	分子量：250.22 密度：N/A 沸点：N/A 熔点：N/A	1006442-53-0	C₉H₁₃F₃N₄O
N-[1-(1,3-benzothiazol-2-yl)ethyl]-2-fluoro-N-methylbenzamide	N-[1-(1,3-benzothiazol-2-yl)ethyl]-2-fluoro-N-methylbenzamide	分子量：314.4 密度：N/A 沸点：N/A 熔点：N/A	924155-92-0	C₁₇H₁₅FN₂OS
6-(Aminoiminomethyl)-1H-benzimidazole-2-propanoic acid	6-(Aminoiminomethyl)-1H-benzimidazole-2-propanoic acid	分子量：232.24 密度：N/A 沸点：N/A 熔点：N/A	226575-28-6	C₁₁H₁₂N₄O₂
(2E)-N-[4-(piperidin-4-yl)butyl]-3-(pyridin-3-yl)prop-2-enamide	(2E)-N-[4-(piperidin-4-yl)butyl]-3-(pyridin-3-yl)prop-2-enamide	分子量：287.4 密度：N/A 沸点：N/A 熔点：N/A	2180145-39-3	C₁₇H₂₅N₃O
N-(1-cyanocyclopentyl)-2-({4-methyl-5-[2-(4-methylphenyl)quinolin-4-yl]-4H-1,2,4-triazol-3-yl}sulfanyl)acetamide	N-(1-cyanocyclopentyl)-2-({4-methyl-5-[2-(4-methylphenyl)quinolin-4-yl]-4H-1,2,4-triazol-3-yl}sulfanyl)acetamide	分子量：482.6 密度：N/A 沸点：N/A 熔点：N/A	920926-11-0	C₂₇H₂₆N₆OS
2-[[4-(2-Furanyl)-6-(trifluoromethyl)-2-pyrimidinyl]thio]ethanamine	2-[[4-(2-Furanyl)-6-(trifluoromethyl)-2-pyrimidinyl]thio]ethanamine	分子量：289.28 密度：N/A 沸点：N/A 熔点：N/A	861451-77-6	C₁₁H₁₀F₃N₃OS
2-[[4-(4-Chlorophenyl)-2-pyrimidinyl]thio]ethanamine	2-[[4-(4-Chlorophenyl)-2-pyrimidinyl]thio]ethanamine	分子量：265.76 密度：N/A 沸点：N/A 熔点：N/A	861226-56-4	C₁₂H₁₂ClN₃S
I+/--(2-Phenylethyl)-1,1-cyclopentanedimethanol	I+/--(2-Phenylethyl)-1,1-cyclopentanedimethanol	分子量：234.33 密度：N/A 沸点：N/A 熔点：N/A	172477-55-3	C₁₅H₂₂O₂
N1-[4-(4-Chlorophenyl)-2-pyrimidinyl]-1,3-propanediamine	N1-[4-(4-Chlorophenyl)-2-pyrimidinyl]-1,3-propanediamine	分子量：262.74 密度：N/A 沸点：N/A 熔点：N/A	861225-53-8	C₁₃H₁₅ClN₄
2-(2-hydroxy-2,3-dihydro-1H-inden-2-yl)acetic acid	2-(2-hydroxy-2,3-dihydro-1H-inden-2-yl)acetic acid	分子量：192.21 密度：N/A 沸点：N/A 熔点：N/A	137325-77-0	C₁₁H₁₂O₃
4-(4-Chlorophenyl)-1-methylpiperidine-4-carbonitrile	4-(4-Chlorophenyl)-1-methylpiperidine-4-carbonitrile	分子量：234.72 密度：N/A 沸点：N/A 熔点：N/A	258500-81-1	C₁₃H₁₅ClN₂
1-(1a(2)-Methyl[3,4a(2)-bi-1H-pyrazol]-1-yl)-2-propanone	1-(1a(2)-Methyl[3,4a(2)-bi-1H-pyrazol]-1-yl)-2-propanone	分子量：204.23 密度：N/A 沸点：N/A 熔点：N/A	1006464-31-8	C₁₀H₁₂N₄O
4-Bromo-1',3'-dimethyl-1H,1'H-3,4'-bipyrazole	4-Bromo-1',3'-dimethyl-1H,1'H-3,4'-bipyrazole	分子量：241.09 密度：N/A 沸点：N/A 熔点：N/A	1006464-43-2	C₈H₉BrN₄
2-[4-bromo-3-(1,5-dimethyl-1H-pyrazol-4-yl)-1H-pyrazol-1-yl]acetic acid	2-[4-bromo-3-(1,5-dimethyl-1H-pyrazol-4-yl)-1H-pyrazol-1-yl]acetic acid	分子量：299.12 密度：N/A 沸点：N/A 熔点：N/A	1006464-57-8	C₁₀H₁₁BrN₄O₂
5-Chloro-2-phenylbenzene-1-sulfonyl chloride	5-Chloro-2-phenylbenzene-1-sulfonyl chloride	分子量：287.2 密度：N/A 沸点：N/A 熔点：N/A	2172305-84-7	C₁₂H₈Cl₂O₂S
2-[(1a(2)-Ethyl[3,4a(2)-bi-1H-pyrazol]-1-yl)methyl]benzoic acid	2-[(1a(2)-Ethyl[3,4a(2)-bi-1H-pyrazol]-1-yl)methyl]benzoic acid	分子量：296.32 密度：N/A 沸点：N/A 熔点：N/A	1006464-85-2	C₁₆H₁₆N₄O₂
5-[[3-(1-Ethylpyrazol-4-yl)pyrazol-1-yl]methyl]furan-2-carboxylic acid	5-[[3-(1-Ethylpyrazol-4-yl)pyrazol-1-yl]methyl]furan-2-carboxylic acid	分子量：286.29 密度：N/A 沸点：N/A 熔点：N/A	1006464-88-5	C₁₄H₁₄N₄O₃
4-Chloro-1a(2)-ethyl-5a(2)-methyl-3,4a(2)-bi-1H-pyrazole	4-Chloro-1a(2)-ethyl-5a(2)-methyl-3,4a(2)-bi-1H-pyrazole	分子量：210.66 密度：N/A 沸点：N/A 熔点：N/A	1006477-45-7	C₉H₁₁ClN₄
(7-Methylimidazo[1,2-a]pyridin-3-yl)(phenyl)methanone	(7-Methylimidazo[1,2-a]pyridin-3-yl)(phenyl)methanone	分子量：236.27 密度：N/A 沸点：N/A 熔点：N/A	220405-77-6	C₁₅H₁₂N₂O
3-(1,3-dimethyl-1H-pyrazol-4-yl)propanoic acid	3-(1,3-dimethyl-1H-pyrazol-4-yl)propanoic acid	分子量：168.19 密度：N/A 沸点：N/A 熔点：N/A	1006490-35-2	C₈H₁₂N₂O₂
1-[4-(Pyridin-3-yloxy)phenyl]ethan-1-amine	1-[4-(Pyridin-3-yloxy)phenyl]ethan-1-amine	分子量：214.26 密度：N/A 沸点：N/A 熔点：N/A	869945-02-8	C₁₃H₁₄N₂O
Tert-butyl oct-2-ynoate	Tert-butyl oct-2-ynoate	分子量：196.29 密度：N/A 沸点：N/A 熔点：N/A	85144-29-2	C₁₂H₂₀O₂
4-(2-Methylpiperidin-1-YL)benzaldehyde	4-(2-Methylpiperidin-1-YL)benzaldehyde	分子量：203.28 密度：N/A 沸点：N/A 熔点：N/A	223541-06-8	C₁₃H₁₇NO
5-Fluoro-2-(pyridin-4-ylmethoxy)aniline	5-Fluoro-2-(pyridin-4-ylmethoxy)aniline	分子量：218.23 密度：N/A 沸点：N/A 熔点：N/A	869945-46-0	C₁₂H₁₁FN₂O
2-((2,2-dimethyl-2,3-dihydrobenzofuran-7-yl)oxy)-N-(4-(N-(pyrimidin-2-yl)sulfamoyl)phenyl)acetamide	2-((2,2-dimethyl-2,3-dihydrobenzofuran-7-yl)oxy)-N-(4-(N-(pyrimidin-2-yl)sulfamoyl)phenyl)acetamide	分子量：454.5 密度：N/A 沸点：N/A 熔点：N/A	920664-05-7	C₂₂H₂₂N₄O₅S
N-(1-cyanocyclohexyl)-N-methyl-2-({5-methyl-[1,2,4]triazolo[4,3-a]quinolin-1-yl}sulfanyl)acetamide	N-(1-cyanocyclohexyl)-N-methyl-2-({5-methyl-[1,2,4]triazolo[4,3-a]quinolin-1-yl}sulfanyl)acetamide	分子量：393.5 密度：N/A 沸点：N/A 熔点：N/A	919885-73-7	C₂₁H₂₃N₅OS
2-cyano-3-[1-(3,5-dichlorophenyl)-2,5-dimethyl-1H-pyrrol-3-yl]-N-(2,4-difluorophenyl)prop-2-enamide	2-cyano-3-[1-(3,5-dichlorophenyl)-2,5-dimethyl-1H-pyrrol-3-yl]-N-(2,4-difluorophenyl)prop-2-enamide	分子量：446.3 密度：N/A 沸点：N/A 熔点：N/A	924710-97-4	C₂₂H₁₅Cl₂F₂N₃O
7-(3-Nitrophenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylic acid	7-(3-Nitrophenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylic acid	分子量：284.23 密度：N/A 沸点：N/A 熔点：N/A	932236-41-4	C₁₃H₈N₄O₄
1-[(7-Bromo-2,3-dihydro-1,4-benzodioxin-6-yl)methyl]-4-(2-phenylethenesulfonyl)piperazine	1-[(7-Bromo-2,3-dihydro-1,4-benzodioxin-6-yl)methyl]-4-(2-phenylethenesulfonyl)piperazine	分子量：479.4 密度：N/A 沸点：N/A 熔点：N/A	876469-35-1	C₂₁H₂₃BrN₂O₄S
N-(5-bromo-2-methoxybenzyl)-3-methoxypropan-1-amine	N-(5-bromo-2-methoxybenzyl)-3-methoxypropan-1-amine	分子量：288.18 密度：N/A 沸点：N/A 熔点：N/A	932241-22-0	C₁₂H₁₈BrNO₂
2-Amino-4-(2-furyl)thiophene-3-carbonitrile	2-Amino-4-(2-furyl)thiophene-3-carbonitrile	分子量：190.22 密度：N/A 沸点：N/A 熔点：N/A	82039-31-4	C₉H₆N₂OS
2-(4-(1-Aminoethyl)phenyl)isoindolin-1-one	2-(4-(1-Aminoethyl)phenyl)isoindolin-1-one	分子量：252.31 密度：N/A 沸点：N/A 熔点：N/A	344339-81-7	C₁₆H₁₆N₂O
{[1-(4-Chlorobenzyl)piperidin-4-yl]methyl}amine	{[1-(4-Chlorobenzyl)piperidin-4-yl]methyl}amine	分子量：238.75 密度：N/A 沸点：N/A 熔点：N/A	226249-40-7	C₁₃H₁₉ClN₂
N,N,3-trimethyl-4-propoxybenzenesulfonamide	N,N,3-trimethyl-4-propoxybenzenesulfonamide	分子量：257.35 密度：N/A 沸点：N/A 熔点：N/A	914245-58-2	C₁₂H₁₉NO₃S
2,6-Difluoro-3-(1H-pyrrol-1-yl)benzenemethanol	2,6-Difluoro-3-(1H-pyrrol-1-yl)benzenemethanol	分子量：209.19 密度：N/A 沸点：N/A 熔点：N/A	83153-49-5	C₁₁H₉F₂NO
4-(Dimethoxymethyl)-3-fluorobenzaldehyde	4-(Dimethoxymethyl)-3-fluorobenzaldehyde	分子量：198.19 密度：N/A 沸点：N/A 熔点：N/A	439814-88-7	C₁₀H₁₁FO₃
1h-Indole,2-methyl-1-(1-methyl-4-piperidinyl)-3-(phenylthio)-,hydrochloride	1h-Indole,2-methyl-1-(1-methyl-4-piperidinyl)-3-(phenylthio)-,hydrochloride	分子量：373.0 密度：N/A 沸点：N/A 熔点：N/A	137641-59-9	C₂₁H₂₅ClN₂S
4-Methyl-3-phenyl-2-morpholinone	4-Methyl-3-phenyl-2-morpholinone	分子量：191.23 密度：N/A 沸点：N/A 熔点：N/A	3042-82-8	C₁₁H₁₃NO₂
2-({4-[(6-chloropyridin-3-yl)sulfonyl]piperazin-1-yl}methyl)-5,6-dimethyl-1H,4H-thieno[2,3-d]pyrimidin-4-one	2-({4-[(6-chloropyridin-3-yl)sulfonyl]piperazin-1-yl}methyl)-5,6-dimethyl-1H,4H-thieno[2,3-d]pyrimidin-4-one	分子量：454.0 密度：N/A 沸点：N/A 熔点：N/A	924461-67-6	C₁₈H₂₀ClN₅O₃S₂
3-{2-Oxo-2-[4-(2-phenylethenesulfonyl)piperazin-1-yl]ethyl}-1,3-diazaspiro[4.5]decane-2,4-dione	3-{2-Oxo-2-[4-(2-phenylethenesulfonyl)piperazin-1-yl]ethyl}-1,3-diazaspiro[4.5]decane-2,4-dione	分子量：460.5 密度：N/A 沸点：N/A 熔点：N/A	924713-98-4	C₂₂H₂₈N₄O₅S
1-((5-chlorothiophen-2-yl)sulfonyl)-N-(1,2-dihydroacenaphthylen-5-yl)pyrrolidine-2-carboxamide	1-((5-chlorothiophen-2-yl)sulfonyl)-N-(1,2-dihydroacenaphthylen-5-yl)pyrrolidine-2-carboxamide	分子量：447.0 密度：N/A 沸点：N/A 熔点：N/A	1050211-08-9	C₂₁H₁₉ClN₂O₃S₂
1-((5-chlorothiophen-2-yl)sulfonyl)-N-(5-(5,6,7,8-tetrahydronaphthalen-2-yl)-1,3,4-oxadiazol-2-yl)pyrrolidine-2-carboxamide	1-((5-chlorothiophen-2-yl)sulfonyl)-N-(5-(5,6,7,8-tetrahydronaphthalen-2-yl)-1,3,4-oxadiazol-2-yl)pyrrolidine-2-carboxamide	分子量：493.0 密度：N/A 沸点：N/A 熔点：N/A	1098646-16-2	C₂₁H₂₁ClN₄O₄S₂
2-Ethyl-2-methylcyclopentan-1-one	2-Ethyl-2-methylcyclopentan-1-one	分子量：126.20 密度：N/A 沸点：N/A 熔点：N/A	88726-48-1	C₈H₁₄O
1-((5-chlorothiophen-2-yl)sulfonyl)-N-(6-(methylthio)benzo[d]thiazol-2-yl)pyrrolidine-2-carboxamide	1-((5-chlorothiophen-2-yl)sulfonyl)-N-(6-(methylthio)benzo[d]thiazol-2-yl)pyrrolidine-2-carboxamide	分子量：474.0 密度：N/A 沸点：N/A 熔点：N/A	1097639-01-4	C₁₇H₁₆ClN₃O₃S₄