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
6-(4-fluorobenzyl)-4-(3,4,5-trimethoxyphenyl)-3,4,6,7-tetrahydro-1H-pyrrolo[3,4-d]pyrimidine-2,5-dione	6-(4-fluorobenzyl)-4-(3,4,5-trimethoxyphenyl)-3,4,6,7-tetrahydro-1H-pyrrolo[3,4-d]pyrimidine-2,5-dione	分子量：427.4 密度：N/A 沸点：N/A 熔点：N/A	875158-99-9	C₂₂H₂₂FN₃O₅
N-{2-[1-(2-methylpropyl)-1H-benzimidazol-2-yl]ethyl}pyridine-4-carboxamide	N-{2-[1-(2-methylpropyl)-1H-benzimidazol-2-yl]ethyl}pyridine-4-carboxamide	分子量：322.4 密度：N/A 沸点：N/A 熔点：N/A	953597-98-3	C₁₉H₂₂N₄O
2-[(2-Methyl-1-piperidinyl)methyl]morpholine	2-[(2-Methyl-1-piperidinyl)methyl]morpholine	分子量：198.31 密度：N/A 沸点：N/A 熔点：N/A	259090-42-1	C₁₁H₂₂N₂O
3-(Benzyloxy)-2,4-dimethoxybenzaldehyde	3-(Benzyloxy)-2,4-dimethoxybenzaldehyde	分子量：272.29 密度：N/A 沸点：N/A 熔点：N/A	20321-46-4	C₁₆H₁₆O₄
N-(2-chloro-5-pyrrolidin-1-ylsulfonylphenyl)-2-(2-thiophen-2-ylpyrrolidin-1-yl)acetamide	N-(2-chloro-5-pyrrolidin-1-ylsulfonylphenyl)-2-(2-thiophen-2-ylpyrrolidin-1-yl)acetamide	分子量：454.0 密度：N/A 沸点：N/A 熔点：N/A	878128-36-0	C₂₀H₂₄ClN₃O₃S₂
N-(2-methyl-5-morpholin-4-ylsulfonylphenyl)-2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepin-3-ylsulfanyl)acetamide	N-(2-methyl-5-morpholin-4-ylsulfonylphenyl)-2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepin-3-ylsulfanyl)acetamide	分子量：465.6 密度：N/A 沸点：N/A 熔点：N/A	878217-32-4	C₂₀H₂₇N₅O₄S₂
7-chloro-N-[5-(diethylsulfamoyl)-2-morpholin-4-ylphenyl]-1,3-benzodioxole-5-carboxamide	7-chloro-N-[5-(diethylsulfamoyl)-2-morpholin-4-ylphenyl]-1,3-benzodioxole-5-carboxamide	分子量：496.0 密度：N/A 沸点：N/A 熔点：N/A	879142-89-9	C₂₂H₂₆ClN₃O₆S
N-(4-methyl-2,5-dioxo-4-phenylimidazolidin-1-yl)-2-[(4-methyl-5-pyridin-4-yl-1,2,4-triazol-3-yl)sulfanyl]acetamide	N-(4-methyl-2,5-dioxo-4-phenylimidazolidin-1-yl)-2-[(4-methyl-5-pyridin-4-yl-1,2,4-triazol-3-yl)sulfanyl]acetamide	分子量：437.5 密度：N/A 沸点：N/A 熔点：N/A	956292-28-7	C₂₀H₁₉N₇O₃S
6-[[Hexahydro-4-[(4-methylphenyl)sulfonyl]-1H-1,4-diazepin-1-yl]carbonyl]-2,3-dihydro-5H-thiazolo[3,2-a]pyrimidin-5-one	6-[[Hexahydro-4-[(4-methylphenyl)sulfonyl]-1H-1,4-diazepin-1-yl]carbonyl]-2,3-dihydro-5H-thiazolo[3,2-a]pyrimidin-5-one	分子量：434.5 密度：N/A 沸点：N/A 熔点：N/A	939760-07-3	C₁₉H₂₂N₄O₄S₂
[2-[[2-(2-Chloroanilino)-2-oxoethyl]-methylamino]-2-oxoethyl] 4-(4-hydroxyphenyl)benzoate	[2-[[2-(2-Chloroanilino)-2-oxoethyl]-methylamino]-2-oxoethyl] 4-(4-hydroxyphenyl)benzoate	分子量：452.9 密度：N/A 沸点：N/A 熔点：N/A	879139-06-7	C₂₄H₂₁ClN₂O₅
2-(2-(Sec-butylamino)-2-oxoethoxy)benzamide	2-(2-(Sec-butylamino)-2-oxoethoxy)benzamide	分子量：250.29 密度：N/A 沸点：N/A 熔点：N/A	879336-54-6	C₁₃H₁₈N₂O₃
N-methyl-N-(1,2,3,4-tetrahydronaphthalen-1-yl)-3-(trifluoromethyl)benzamide	N-methyl-N-(1,2,3,4-tetrahydronaphthalen-1-yl)-3-(trifluoromethyl)benzamide	分子量：333.3 密度：N/A 沸点：N/A 熔点：N/A	878218-91-8	C₁₉H₁₈F₃NO
3-methoxy-4-[2-(2-methoxyanilino)-2-oxoethoxy]-N-(oxolan-2-ylmethyl)benzamide	3-methoxy-4-[2-(2-methoxyanilino)-2-oxoethoxy]-N-(oxolan-2-ylmethyl)benzamide	分子量：414.5 密度：N/A 沸点：N/A 熔点：N/A	879146-29-9	C₂₂H₂₆N₂O₆
4,5,6-Trimethyl-2-[2-oxo-2-(4-pyridin-2-ylpiperazin-1-yl)ethyl]sulfanylpyridine-3-carbonitrile	4,5,6-Trimethyl-2-[2-oxo-2-(4-pyridin-2-ylpiperazin-1-yl)ethyl]sulfanylpyridine-3-carbonitrile	分子量：381.5 密度：N/A 沸点：N/A 熔点：N/A	879147-19-0	C₂₀H₂₃N₅OS
N-[3-(2-methyl-1,3-thiazol-4-yl)phenyl]-2-(N-methyl-2-phenylethenesulfonamido)acetamide	N-[3-(2-methyl-1,3-thiazol-4-yl)phenyl]-2-(N-methyl-2-phenylethenesulfonamido)acetamide	分子量：427.5 密度：N/A 沸点：N/A 熔点：N/A	879148-27-3	C₂₁H₂₁N₃O₃S₂
n-Cyclopropyl-5-nitroimidazo[2,1-b]thiazol-6-amine	n-Cyclopropyl-5-nitroimidazo[2,1-b]thiazol-6-amine	分子量：224.24 密度：N/A 沸点：N/A 熔点：N/A	923822-19-9	C₈H₈N₄O₂S
N-Butyl-2-(4-((4-chloro-3-(trifluoromethyl)phenyl)sulfonyl)piperazin-1-yl)acetamide	N-Butyl-2-(4-((4-chloro-3-(trifluoromethyl)phenyl)sulfonyl)piperazin-1-yl)acetamide	分子量：441.9 密度：N/A 沸点：N/A 熔点：N/A	879351-34-5	C₁₇H₂₃ClF₃N₃O₃S
6-chloro-N-(3,4-dihydro-2H-1-benzothiopyran-4-yl)pyridine-3-sulfonamide	6-chloro-N-(3,4-dihydro-2H-1-benzothiopyran-4-yl)pyridine-3-sulfonamide	分子量：340.9 密度：N/A 沸点：N/A 熔点：N/A	878118-29-7	C₁₄H₁₃ClN₂O₂S₂
3-(benzylsulfamoyl)-4-chloro-N-(2-morpholin-4-ylethyl)benzamide	3-(benzylsulfamoyl)-4-chloro-N-(2-morpholin-4-ylethyl)benzamide	分子量：437.9 密度：N/A 沸点：N/A 熔点：N/A	878253-06-6	C₂₀H₂₄ClN₃O₄S
5-(2,3-dihydroindol-1-ylsulfonyl)-N-[2-(furan-2-yl)-2-pyrrolidin-1-ylethyl]-2-methoxybenzamide	5-(2,3-dihydroindol-1-ylsulfonyl)-N-[2-(furan-2-yl)-2-pyrrolidin-1-ylethyl]-2-methoxybenzamide	分子量：495.6 密度：N/A 沸点：N/A 熔点：N/A	879140-12-2	C₂₆H₂₉N₃O₅S
6-Amino-5-[2-[(4-cyclopropyl-5-thiophen-2-yl-1,2,4-triazol-3-yl)sulfanyl]acetyl]-1-propylpyrimidine-2,4-dione	6-Amino-5-[2-[(4-cyclopropyl-5-thiophen-2-yl-1,2,4-triazol-3-yl)sulfanyl]acetyl]-1-propylpyrimidine-2,4-dione	分子量：432.5 密度：N/A 沸点：N/A 熔点：N/A	879137-52-7	C₁₈H₂₀N₆O₃S₂
Methyl 5-[[[1-(2,3-dihydro-1,4-benzodioxin-6-yl)-5-oxopyrrolidine-3-carbonyl]amino]methyl]-2-methoxybenzoate	Methyl 5-[[[1-(2,3-dihydro-1,4-benzodioxin-6-yl)-5-oxopyrrolidine-3-carbonyl]amino]methyl]-2-methoxybenzoate	分子量：440.4 密度：N/A 沸点：N/A 熔点：N/A	878227-73-7	C₂₃H₂₄N₂O₇
N-[2-(dimethylamino)-2-phenylethyl]-1-(2-phenylethenesulfonyl)piperidine-4-carboxamide	N-[2-(dimethylamino)-2-phenylethyl]-1-(2-phenylethenesulfonyl)piperidine-4-carboxamide	分子量：441.6 密度：N/A 沸点：N/A 熔点：N/A	878254-83-2	C₂₄H₃₁N₃O₃S
N-(1-cyanocyclohexyl)-2-{[4-cyclopropyl-5-(thiophen-2-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}propanamide	N-(1-cyanocyclohexyl)-2-{[4-cyclopropyl-5-(thiophen-2-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}propanamide	分子量：401.6 密度：N/A 沸点：N/A 熔点：N/A	878229-31-3	C₁₉H₂₃N₅OS₂
3-[4,6-dimethyl-2-(methylsulfanyl)pyrimidin-5-yl]-N-(4-{5H,6H,7H,8H,9H-[1,2,4]triazolo[4,3-a]azepin-3-yl}phenyl)propanamide	3-[4,6-dimethyl-2-(methylsulfanyl)pyrimidin-5-yl]-N-(4-{5H,6H,7H,8H,9H-[1,2,4]triazolo[4,3-a]azepin-3-yl}phenyl)propanamide	分子量：436.6 密度：N/A 沸点：N/A 熔点：N/A	878228-26-3	C₂₃H₂₈N₆OS
2-(6-methoxy-2-naphthyl)-N-[2-(4-morpholinyl)ethyl]propanamide	2-(6-methoxy-2-naphthyl)-N-[2-(4-morpholinyl)ethyl]propanamide	分子量：342.4 密度：N/A 沸点：N/A 熔点：N/A	878101-97-4	C₂₀H₂₆N₂O₃
2-(6-Methoxynaphthalen-2-yl)-1-[4-(2-phenylethenesulfonyl)piperazin-1-yl]propan-1-one	2-(6-Methoxynaphthalen-2-yl)-1-[4-(2-phenylethenesulfonyl)piperazin-1-yl]propan-1-one	分子量：464.6 密度：N/A 沸点：N/A 熔点：N/A	877990-32-4	C₂₆H₂₈N₂O₄S
2-({5-[(4-chlorophenoxy)methyl]-4-methyl-4H-1,2,4-triazol-3-yl}sulfanyl)-N-(3,4-dihydro-2H-1,5-benzodioxepin-7-yl)acetamide	2-({5-[(4-chlorophenoxy)methyl]-4-methyl-4H-1,2,4-triazol-3-yl}sulfanyl)-N-(3,4-dihydro-2H-1,5-benzodioxepin-7-yl)acetamide	分子量：460.9 密度：N/A 沸点：N/A 熔点：N/A	879136-38-6	C₂₁H₂₁ClN₄O₄S
N-(1-cyanocyclopentyl)-2-{[3-(6-methylpyridin-2-yl)-4-oxo-3,4-dihydroquinazolin-2-yl]sulfanyl}acetamide	N-(1-cyanocyclopentyl)-2-{[3-(6-methylpyridin-2-yl)-4-oxo-3,4-dihydroquinazolin-2-yl]sulfanyl}acetamide	分子量：419.5 密度：N/A 沸点：N/A 熔点：N/A	879147-07-6	C₂₂H₂₁N₅O₂S
N-cyclopropyl-2-[[2-[(3-fluoro-4-methoxyphenyl)methyl-methylamino]acetyl]amino]benzamide	N-cyclopropyl-2-[[2-[(3-fluoro-4-methoxyphenyl)methyl-methylamino]acetyl]amino]benzamide	分子量：385.4 密度：N/A 沸点：N/A 熔点：N/A	878236-24-9	C₂₁H₂₄FN₃O₃
2-[2-(1,3-benzothiazol-2-yl)piperidin-1-yl]-N-(1-cyanocyclopentyl)acetamide	2-[2-(1,3-benzothiazol-2-yl)piperidin-1-yl]-N-(1-cyanocyclopentyl)acetamide	分子量：368.5 密度：N/A 沸点：N/A 熔点：N/A	878254-68-3	C₂₀H₂₄N₄OS
2-[4-(4-methylphenyl)sulfonylpiperazin-1-yl]-N-(2-phenylpropyl)propanamide	2-[4-(4-methylphenyl)sulfonylpiperazin-1-yl]-N-(2-phenylpropyl)propanamide	分子量：429.6 密度：N/A 沸点：N/A 熔点：N/A	878224-25-0	C₂₃H₃₁N₃O₃S
4-[(2-pyrrolidin-1-ylphenyl)sulfamoyl]-N-(2,2,2-trifluoroethyl)benzamide	4-[(2-pyrrolidin-1-ylphenyl)sulfamoyl]-N-(2,2,2-trifluoroethyl)benzamide	分子量：427.4 密度：N/A 沸点：N/A 熔点：N/A	878214-45-0	C₁₉H₂₀F₃N₃O₃S
[(2,5-Dimethoxyphenyl)carbamoyl]methyl furan-3-carboxylate	[(2,5-Dimethoxyphenyl)carbamoyl]methyl furan-3-carboxylate	分子量：305.28 密度：N/A 沸点：N/A 熔点：N/A	923754-57-8	C₁₅H₁₅NO₆
N-(1-cyano-1-cyclopropylethyl)-2-{4-[(2-fluorophenyl)methyl]piperazin-1-yl}acetamide	N-(1-cyano-1-cyclopropylethyl)-2-{4-[(2-fluorophenyl)methyl]piperazin-1-yl}acetamide	分子量：344.4 密度：N/A 沸点：N/A 熔点：N/A	878251-86-6	C₁₉H₂₅FN₄O
N-[1-(2,3-dihydro-1,4-benzodioxin-6-yl)ethyl]-1-(2-phenylethenesulfonyl)piperidine-4-carboxamide	N-[1-(2,3-dihydro-1,4-benzodioxin-6-yl)ethyl]-1-(2-phenylethenesulfonyl)piperidine-4-carboxamide	分子量：456.6 密度：N/A 沸点：N/A 熔点：N/A	878125-04-3	C₂₄H₂₈N₂O₅S
N-(1-cyanocyclohexyl)-2-(6,7-dimethoxy-1,2,3,4-tetrahydroisoquinolin-2-yl)propanamide	N-(1-cyanocyclohexyl)-2-(6,7-dimethoxy-1,2,3,4-tetrahydroisoquinolin-2-yl)propanamide	分子量：371.5 密度：N/A 沸点：N/A 熔点：N/A	878113-64-5	C₂₁H₂₉N₃O₃
N-(furan-2-ylmethyl)-2-[methyl-[2-oxo-2-(2,3,4-trifluoroanilino)ethyl]amino]acetamide	N-(furan-2-ylmethyl)-2-[methyl-[2-oxo-2-(2,3,4-trifluoroanilino)ethyl]amino]acetamide	分子量：355.31 密度：N/A 沸点：N/A 熔点：N/A	878213-45-7	C₁₆H₁₆F₃N₃O₃
N-[(5-chlorothiophen-2-yl)methyl]-4-fluoro-3-morpholin-4-ylsulfonyl-N-prop-2-enylbenzamide	N-[(5-chlorothiophen-2-yl)methyl]-4-fluoro-3-morpholin-4-ylsulfonyl-N-prop-2-enylbenzamide	分子量：459.0 密度：N/A 沸点：N/A 熔点：N/A	878250-95-4	C₁₉H₂₀ClFN₂O₄S₂
(Butylcarbamoyl)methyl 2-[2-(4-methylphenyl)ethenesulfonamido]acetate	(Butylcarbamoyl)methyl 2-[2-(4-methylphenyl)ethenesulfonamido]acetate	分子量：368.4 密度：N/A 沸点：N/A 熔点：N/A	879350-40-0	C₁₇H₂₄N₂O₅S
N-(2,3-Dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazol-4-yl)-4-methyl-3-(4-methylphenyl)-2,5-dioxo-1-imidazolidineacetamide	N-(2,3-Dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazol-4-yl)-4-methyl-3-(4-methylphenyl)-2,5-dioxo-1-imidazolidineacetamide	分子量：447.5 密度：N/A 沸点：N/A 熔点：N/A	1032582-81-2	C₂₄H₂₅N₅O₄
2-[(4-cyclopropyl-5-pyridin-4-yl-1,2,4-triazol-3-yl)sulfanyl]-N-(3-sulfamoylphenyl)acetamide	2-[(4-cyclopropyl-5-pyridin-4-yl-1,2,4-triazol-3-yl)sulfanyl]-N-(3-sulfamoylphenyl)acetamide	分子量：430.5 密度：N/A 沸点：N/A 熔点：N/A	878267-24-4	C₁₈H₁₈N₆O₃S₂
5,6-dichloro-N-[[5-(2-chlorophenyl)-1,3,4-oxadiazol-2-yl]methyl]-N-propan-2-ylpyridine-3-carboxamide	5,6-dichloro-N-[[5-(2-chlorophenyl)-1,3,4-oxadiazol-2-yl]methyl]-N-propan-2-ylpyridine-3-carboxamide	分子量：425.7 密度：N/A 沸点：N/A 熔点：N/A	878250-48-7	C₁₈H₁₅Cl₃N₄O₂
3,4-Dihydro-4-oxo-N-[2-(2-oxo-1-pyrrolidinyl)phenyl]-3-(phenylmethyl)-1-phthalazinecarboxamide	3,4-Dihydro-4-oxo-N-[2-(2-oxo-1-pyrrolidinyl)phenyl]-3-(phenylmethyl)-1-phthalazinecarboxamide	分子量：438.5 密度：N/A 沸点：N/A 熔点：N/A	878417-22-2	C₂₆H₂₂N₄O₃
N-(3,4-dihydro-2H-1,5-benzodioxepin-7-yl)-1-(2-phenylethenesulfonyl)piperidine-4-carboxamide	N-(3,4-dihydro-2H-1,5-benzodioxepin-7-yl)-1-(2-phenylethenesulfonyl)piperidine-4-carboxamide	分子量：442.5 密度：N/A 沸点：N/A 熔点：N/A	878264-72-3	C₂₃H₂₆N₂O₅S
N-{2-[5-(2-fluorophenyl)-1-methanesulfonyl-4,5-dihydro-1H-pyrazol-3-yl]phenyl}methanesulfonamide	N-{2-[5-(2-fluorophenyl)-1-methanesulfonyl-4,5-dihydro-1H-pyrazol-3-yl]phenyl}methanesulfonamide	分子量：411.5 密度：N/A 沸点：N/A 熔点：N/A	923179-78-6	C₁₇H₁₈FN₃O₄S₂
2-[[2-(2-Benzothiazolyl)-1-piperidinyl]methyl]-9-methyl-4H-pyrido[1,2-a]pyrimidin-4-one	2-[[2-(2-Benzothiazolyl)-1-piperidinyl]methyl]-9-methyl-4H-pyrido[1,2-a]pyrimidin-4-one	分子量：390.5 密度：N/A 沸点：N/A 熔点：N/A	878415-91-9	C₂₂H₂₂N₄OS
3-[2-[2-(2-Benzothiazolyl)-1-piperidinyl]-2-oxoethyl]-3,4-dihydro-4-oxo-1-phthalazinecarboxamide	3-[2-[2-(2-Benzothiazolyl)-1-piperidinyl]-2-oxoethyl]-3,4-dihydro-4-oxo-1-phthalazinecarboxamide	分子量：447.5 密度：N/A 沸点：N/A 熔点：N/A	878417-34-6	C₂₃H₂₁N₅O₃S
2-(Diethylamino)-2-oxoethyl 5-amino-3-methyl-4-isothiazolecarboxylate	2-(Diethylamino)-2-oxoethyl 5-amino-3-methyl-4-isothiazolecarboxylate	分子量：271.34 密度：N/A 沸点：N/A 熔点：N/A	939760-23-3	C₁₁H₁₇N₃O₃S
2-((4-phenyl-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)-1-(4-(pyridin-2-yl)piperazin-1-yl)ethanone	2-((4-phenyl-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)-1-(4-(pyridin-2-yl)piperazin-1-yl)ethanone	分子量：457.6 密度：N/A 沸点：N/A 熔点：N/A	878417-06-2	C₂₄H₂₃N₇OS