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-cyclopropyl-2-hydroxypropyl)-2,3-dihydrobenzofuran-5-sulfonamide	N-(2-cyclopropyl-2-hydroxypropyl)-2,3-dihydrobenzofuran-5-sulfonamide	分子量：297.37 密度：N/A 沸点：N/A 熔点：N/A	1448133-72-9	C₁₄H₁₉NO₄S
N-((1-(thiophen-3-ylmethyl)piperidin-4-yl)methyl)-2,3-dihydrobenzofuran-5-sulfonamide	N-((1-(thiophen-3-ylmethyl)piperidin-4-yl)methyl)-2,3-dihydrobenzofuran-5-sulfonamide	分子量：392.5 密度：N/A 沸点：N/A 熔点：N/A	1448072-07-8	C₁₉H₂₄N₂O₃S₂
1,3,5-trimethyl-N-((1-(pyridin-2-yl)piperidin-4-yl)methyl)-1H-pyrazole-4-sulfonamide	1,3,5-trimethyl-N-((1-(pyridin-2-yl)piperidin-4-yl)methyl)-1H-pyrazole-4-sulfonamide	分子量：363.5 密度：N/A 沸点：N/A 熔点：N/A	1448070-50-5	C₁₇H₂₅N₅O₂S
2-(cyclopentylthio)-N-((1-(pyridin-2-yl)piperidin-4-yl)methyl)acetamide	2-(cyclopentylthio)-N-((1-(pyridin-2-yl)piperidin-4-yl)methyl)acetamide	分子量：333.5 密度：N/A 沸点：N/A 熔点：N/A	1448045-36-0	C₁₈H₂₇N₃OS
1-methyl-N-((1-(pyrimidin-2-yl)piperidin-4-yl)methyl)-1H-imidazole-4-sulfonamide	1-methyl-N-((1-(pyrimidin-2-yl)piperidin-4-yl)methyl)-1H-imidazole-4-sulfonamide	分子量：336.42 密度：N/A 沸点：N/A 熔点：N/A	1052100-34-1	C₁₄H₂₀N₆O₂S
1,3,5-trimethyl-N-((1-(pyrimidin-2-yl)piperidin-4-yl)methyl)-1H-pyrazole-4-sulfonamide	1,3,5-trimethyl-N-((1-(pyrimidin-2-yl)piperidin-4-yl)methyl)-1H-pyrazole-4-sulfonamide	分子量：364.5 密度：N/A 沸点：N/A 熔点：N/A	1448135-39-4	C₁₆H₂₄N₆O₂S
Hydrazinecarbothioamide, 1-(3-methylphenyl)-	Hydrazinecarbothioamide, 1-(3-methylphenyl)-	分子量：181.26 密度：N/A 沸点：N/A 熔点：N/A	1823495-10-8	C₈H₁₁N₃S
N-(tert-butyl)-4-((1,3,5-trimethyl-1H-pyrazole-4-sulfonamido)methyl)piperidine-1-carboxamide	N-(tert-butyl)-4-((1,3,5-trimethyl-1H-pyrazole-4-sulfonamido)methyl)piperidine-1-carboxamide	分子量：385.5 密度：N/A 沸点：N/A 熔点：N/A	1428356-71-1	C₁₇H₃₁N₅O₃S
1,3,5-trimethyl-N-((1-(methylsulfonyl)piperidin-4-yl)methyl)-1H-pyrazole-4-sulfonamide	1,3,5-trimethyl-N-((1-(methylsulfonyl)piperidin-4-yl)methyl)-1H-pyrazole-4-sulfonamide	分子量：364.5 密度：N/A 沸点：N/A 熔点：N/A	1428359-99-2	C₁₃H₂₄N₄O₄S₂
Pyrazolo[1,5-a]pyrimidin-7-amine,6-[4-(1,1-dimethylethyl)phenyl]-5-[[4-(1,1-dimethylethyl)phenyl]methyl]-2-methyl-	Pyrazolo[1,5-a]pyrimidin-7-amine,6-[4-(1,1-dimethylethyl)phenyl]-5-[[4-(1,1-dimethylethyl)phenyl]methyl]-2-methyl-	分子量：426.6 密度：N/A 沸点：N/A 熔点：N/A	922737-50-6	C₂₈H₃₄N₄
2-[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methoxypropanamido]acetic acid	2-[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methoxypropanamido]acetic acid	分子量：398.4 密度：N/A 沸点：N/A 熔点：N/A	2171157-25-6	C₂₁H₂₂N₂O₆
Thieno[3,2-b]pyridine-3-carboxylic acid,2-[ethyl(2-methoxyethyl)amino]-,ethyl ester	Thieno[3,2-b]pyridine-3-carboxylic acid,2-[ethyl(2-methoxyethyl)amino]-,ethyl ester	分子量：308.4 密度：N/A 沸点：N/A 熔点：N/A	187733-01-3	C₁₅H₂₀N₂O₃S
phenyl 4-((1,3,5-trimethyl-1H-pyrazole-4-sulfonamido)methyl)piperidine-1-carboxylate	phenyl 4-((1,3,5-trimethyl-1H-pyrazole-4-sulfonamido)methyl)piperidine-1-carboxylate	分子量：406.5 密度：N/A 沸点：N/A 熔点：N/A	1428362-82-6	C₁₉H₂₆N₄O₄S
1(2h)-Quinolinecarboxylic acid,3,4-dihydro-7-(1-methylethyl)-	1(2h)-Quinolinecarboxylic acid,3,4-dihydro-7-(1-methylethyl)-	分子量：219.28 密度：N/A 沸点：N/A 熔点：N/A	405103-20-0	C₁₃H₁₇NO₂
2-(cyclopentylthio)-N-((1-(4-methyl-1,2,3-thiadiazole-5-carbonyl)piperidin-4-yl)methyl)acetamide	2-(cyclopentylthio)-N-((1-(4-methyl-1,2,3-thiadiazole-5-carbonyl)piperidin-4-yl)methyl)acetamide	分子量：382.5 密度：N/A 沸点：N/A 熔点：N/A	1448053-15-3	C₁₇H₂₆N₄O₂S₂
N-((1-(benzofuran-2-carbonyl)piperidin-4-yl)methyl)-2,3-dihydrobenzofuran-5-sulfonamide	N-((1-(benzofuran-2-carbonyl)piperidin-4-yl)methyl)-2,3-dihydrobenzofuran-5-sulfonamide	分子量：440.5 密度：N/A 沸点：N/A 熔点：N/A	1448034-05-6	C₂₃H₂₄N₂O₅S
1h-Pyrrolo[2,3-b]pyridine,1-(4-pyridinylmethyl)-	1h-Pyrrolo[2,3-b]pyridine,1-(4-pyridinylmethyl)-	分子量：209.25 密度：N/A 沸点：N/A 熔点：N/A	418795-30-9	C₁₃H₁₁N₃
Pyridine,3-(4-chloro-2-nitrophenyl)-	Pyridine,3-(4-chloro-2-nitrophenyl)-	分子量：234.64 密度：N/A 沸点：N/A 熔点：N/A	4423-07-8	C₁₁H₇ClN₂O₂
5-Quinoxalinecarboxamide,3-[4-[[(methylamino)carbonyl]amino]phenyl]-	5-Quinoxalinecarboxamide,3-[4-[[(methylamino)carbonyl]amino]phenyl]-	分子量：321.33 密度：N/A 沸点：N/A 熔点：N/A	489458-94-8	C₁₇H₁₅N₅O₂
5-Quinoxalinecarboxamide,3-[4-(benzoylamino)phenyl]-	5-Quinoxalinecarboxamide,3-[4-(benzoylamino)phenyl]-	分子量：368.4 密度：N/A 沸点：N/A 熔点：N/A	489458-97-1	C₂₂H₁₆N₄O₂
5-Quinoxalinecarboxamide,3-[4-[(2-furanylcarbonyl)amino]phenyl]-	5-Quinoxalinecarboxamide,3-[4-[(2-furanylcarbonyl)amino]phenyl]-	分子量：358.3 密度：N/A 沸点：N/A 熔点：N/A	489458-98-2	C₂₀H₁₄N₄O₃
2-[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]-8-(3-methyl-1,2,4-oxadiazol-5-yl)[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one	2-[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]-8-(3-methyl-1,2,4-oxadiazol-5-yl)[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one	分子量：366.4 密度：N/A 沸点：N/A 熔点：N/A	1396857-51-4	C₁₈H₁₈N₆O₃
N-((1-(benzofuran-2-carbonyl)piperidin-4-yl)methyl)-1-methyl-1H-imidazole-4-sulfonamide	N-((1-(benzofuran-2-carbonyl)piperidin-4-yl)methyl)-1-methyl-1H-imidazole-4-sulfonamide	分子量：402.5 密度：N/A 沸点：N/A 熔点：N/A	1428360-06-8	C₁₉H₂₂N₄O₄S
N-((1-(benzofuran-2-carbonyl)piperidin-4-yl)methyl)-1,3,5-trimethyl-1H-pyrazole-4-sulfonamide	N-((1-(benzofuran-2-carbonyl)piperidin-4-yl)methyl)-1,3,5-trimethyl-1H-pyrazole-4-sulfonamide	分子量：430.5 密度：N/A 沸点：N/A 熔点：N/A	1428356-80-2	C₂₁H₂₆N₄O₄S
(E)-N-((1-(3-(furan-2-yl)acryloyl)piperidin-4-yl)methyl)-1,3,5-trimethyl-1H-pyrazole-4-sulfonamide	(E)-N-((1-(3-(furan-2-yl)acryloyl)piperidin-4-yl)methyl)-1,3,5-trimethyl-1H-pyrazole-4-sulfonamide	分子量：406.5 密度：N/A 沸点：N/A 熔点：N/A	1428381-83-2	C₁₉H₂₆N₄O₄S
N-((1-(2-fluorobenzoyl)piperidin-4-yl)methyl)-1,3,5-trimethyl-1H-pyrazole-4-sulfonamide	N-((1-(2-fluorobenzoyl)piperidin-4-yl)methyl)-1,3,5-trimethyl-1H-pyrazole-4-sulfonamide	分子量：408.5 密度：N/A 沸点：N/A 熔点：N/A	1448133-81-0	C₁₉H₂₅FN₄O₃S
2-(4-(1-methyl-1H-imidazole-4-sulfonamido)phenyl)-N-(2,2,2-trifluoroethyl)acetamide	2-(4-(1-methyl-1H-imidazole-4-sulfonamido)phenyl)-N-(2,2,2-trifluoroethyl)acetamide	分子量：376.36 密度：N/A 沸点：N/A 熔点：N/A	1428378-79-3	C₁₄H₁₅F₃N₄O₃S
2-(4-(3-methyl-2-oxo-2,3-dihydrobenzo[d]oxazole-5-sulfonamido)phenyl)-N-(2,2,2-trifluoroethyl)acetamide	2-(4-(3-methyl-2-oxo-2,3-dihydrobenzo[d]oxazole-5-sulfonamido)phenyl)-N-(2,2,2-trifluoroethyl)acetamide	分子量：443.4 密度：N/A 沸点：N/A 熔点：N/A	1428380-76-0	C₁₈H₁₆F₃N₃O₅S
N-{2-oxo-9-oxa-1-azatricyclo[10.4.0.0^{3,8}]hexadeca-3,5,7-trien-5-yl}-2,3-dihydro-1-benzofuran-5-sulfonamide	N-{2-oxo-9-oxa-1-azatricyclo[10.4.0.0^{3,8}]hexadeca-3,5,7-trien-5-yl}-2,3-dihydro-1-benzofuran-5-sulfonamide	分子量：428.5 密度：N/A 沸点：N/A 熔点：N/A	1428357-57-6	C₂₂H₂₄N₂O₅S
N-(2-hydroxy-3-methoxy-2-methylpropyl)-1,3,5-trimethyl-1H-pyrazole-4-sulfonamide	N-(2-hydroxy-3-methoxy-2-methylpropyl)-1,3,5-trimethyl-1H-pyrazole-4-sulfonamide	分子量：291.37 密度：N/A 沸点：N/A 熔点：N/A	1448072-17-0	C₁₁H₂₁N₃O₄S
2-(cyclopentylthio)-N-(2-hydroxy-3-methoxy-2-methylpropyl)acetamide	2-(cyclopentylthio)-N-(2-hydroxy-3-methoxy-2-methylpropyl)acetamide	分子量：261.38 密度：N/A 沸点：N/A 熔点：N/A	1448079-03-5	C₁₂H₂₃NO₃S
Benzenemethanesulfonamide,n-[2-[2-(3-chlorophenyl)ethyl]-4-benzoxazolyl]-	Benzenemethanesulfonamide,n-[2-[2-(3-chlorophenyl)ethyl]-4-benzoxazolyl]-	分子量：426.9 密度：N/A 沸点：N/A 熔点：N/A	629655-00-1	C₂₂H₁₉ClN₂O₃S
2-Thiophenesulfonamide,4-bromo-5-[(4-fluorophenyl)thio]-	2-Thiophenesulfonamide,4-bromo-5-[(4-fluorophenyl)thio]-	分子量：368.3 密度：N/A 沸点：N/A 熔点：N/A	63031-93-6	C₁₀H₇BrFNO₂S₃
(5-Methylisoxazol-4-yl)(1-oxa-4-thia-8-azaspiro[4.5]decan-8-yl)methanone	(5-Methylisoxazol-4-yl)(1-oxa-4-thia-8-azaspiro[4.5]decan-8-yl)methanone	分子量：268.33 密度：N/A 沸点：N/A 熔点：N/A	1428360-10-4	C₁₂H₁₆N₂O₃S
1-methyl-N-((1-nicotinoylpiperidin-4-yl)methyl)-1H-imidazole-4-sulfonamide	1-methyl-N-((1-nicotinoylpiperidin-4-yl)methyl)-1H-imidazole-4-sulfonamide	分子量：363.4 密度：N/A 沸点：N/A 熔点：N/A	1448058-38-5	C₁₆H₂₁N₅O₃S
Benzeneacetamide,4-[[5-(aminosulfonyl)-2-thienyl]thio]-	Benzeneacetamide,4-[[5-(aminosulfonyl)-2-thienyl]thio]-	分子量：328.4 密度：N/A 沸点：N/A 熔点：N/A	63032-32-6	C₁₂H₁₂N₂O₃S₃
Acetamide,n-[5-[[5-(aminosulfonyl)-2-thienyl]sulfinyl]-2-methoxyphenyl]-	Acetamide,n-[5-[[5-(aminosulfonyl)-2-thienyl]sulfinyl]-2-methoxyphenyl]-	分子量：374.5 密度：N/A 沸点：N/A 熔点：N/A	63032-63-3	C₁₃H₁₄N₂O₅S₃
2-(cyclopentylthio)-N-((4-hydroxytetrahydro-2H-pyran-4-yl)methyl)acetamide	2-(cyclopentylthio)-N-((4-hydroxytetrahydro-2H-pyran-4-yl)methyl)acetamide	分子量：273.39 密度：N/A 沸点：N/A 熔点：N/A	1448050-63-2	C₁₃H₂₃NO₃S
N-(2-hydroxy-2-(4-(trifluoromethyl)phenyl)ethyl)-3-methyl-2-oxo-2,3-dihydrobenzo[d]oxazole-5-sulfonamide	N-(2-hydroxy-2-(4-(trifluoromethyl)phenyl)ethyl)-3-methyl-2-oxo-2,3-dihydrobenzo[d]oxazole-5-sulfonamide	分子量：416.4 密度：N/A 沸点：N/A 熔点：N/A	1448052-70-7	C₁₇H₁₅F₃N₂O₅S
Methyl2-(2-chlorophenyl)-2-cyanoacetate	Methyl2-(2-chlorophenyl)-2-cyanoacetate	分子量：209.63 密度：N/A 沸点：N/A 熔点：N/A	1218951-01-9	C₁₀H₈ClNO₂
(1R,5S)-8-((1H-imidazol-4-yl)sulfonyl)-3-(phenylsulfonyl)-8-azabicyclo[3.2.1]octane	(1R,5S)-8-((1H-imidazol-4-yl)sulfonyl)-3-(phenylsulfonyl)-8-azabicyclo[3.2.1]octane	分子量：381.5 密度：N/A 沸点：N/A 熔点：N/A	1448062-87-0	C₁₆H₁₉N₃O₄S₂
2,5-Dichloro-4-(piperazin-1-yl)pyrimidine	2,5-Dichloro-4-(piperazin-1-yl)pyrimidine	分子量：233.09 密度：N/A 沸点：N/A 熔点：N/A	1519130-69-8	C₈H₁₀Cl₂N₄
1-(4-((4-Methoxyphenyl)sulfonyl)piperidin-1-yl)pent-4-en-1-one	1-(4-((4-Methoxyphenyl)sulfonyl)piperidin-1-yl)pent-4-en-1-one	分子量：337.4 密度：N/A 沸点：N/A 熔点：N/A	1448029-65-9	C₁₇H₂₃NO₄S
(4-((4-Methoxyphenyl)sulfonyl)piperidin-1-yl)(thiophen-3-yl)methanone	(4-((4-Methoxyphenyl)sulfonyl)piperidin-1-yl)(thiophen-3-yl)methanone	分子量：365.5 密度：N/A 沸点：N/A 熔点：N/A	1448046-82-9	C₁₇H₁₉NO₄S₂
(4-((4-Methoxyphenyl)sulfonyl)piperidin-1-yl)(4-methylthiophen-2-yl)methanone	(4-((4-Methoxyphenyl)sulfonyl)piperidin-1-yl)(4-methylthiophen-2-yl)methanone	分子量：379.5 密度：N/A 沸点：N/A 熔点：N/A	1448132-44-2	C₁₈H₂₁NO₄S₂
3-(4-((4-Methoxyphenyl)sulfonyl)piperidine-1-carbonyl)benzonitrile	3-(4-((4-Methoxyphenyl)sulfonyl)piperidine-1-carbonyl)benzonitrile	分子量：384.5 密度：N/A 沸点：N/A 熔点：N/A	1448057-21-3	C₂₀H₂₀N₂O₄S
2-(4-Fluorophenyl)-1-(4-((4-methoxyphenyl)sulfonyl)piperidin-1-yl)ethanone	2-(4-Fluorophenyl)-1-(4-((4-methoxyphenyl)sulfonyl)piperidin-1-yl)ethanone	分子量：391.5 密度：N/A 沸点：N/A 熔点：N/A	1448068-86-7	C₂₀H₂₂FNO₄S
1-(2-(4-((4-Methoxyphenyl)sulfonyl)piperidin-1-yl)-2-oxoethyl)pyrrolidine-2,5-dione	1-(2-(4-((4-Methoxyphenyl)sulfonyl)piperidin-1-yl)-2-oxoethyl)pyrrolidine-2,5-dione	分子量：394.4 密度：N/A 沸点：N/A 熔点：N/A	1448065-20-0	C₁₈H₂₂N₂O₆S
(5-Chlorothiophen-2-yl)(4-((4-methoxyphenyl)sulfonyl)piperidin-1-yl)methanone	(5-Chlorothiophen-2-yl)(4-((4-methoxyphenyl)sulfonyl)piperidin-1-yl)methanone	分子量：399.9 密度：N/A 沸点：N/A 熔点：N/A	1448136-94-4	C₁₇H₁₈ClNO₄S₂
2-(2-Chlorophenyl)-1-(4-((4-methoxyphenyl)sulfonyl)piperidin-1-yl)ethanone	2-(2-Chlorophenyl)-1-(4-((4-methoxyphenyl)sulfonyl)piperidin-1-yl)ethanone	分子量：407.9 密度：N/A 沸点：N/A 熔点：N/A	1448045-55-3	C₂₀H₂₂ClNO₄S