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
1-(5-(2-hydroxy-5-nitrophenyl)-3-(thiophen-2-yl)-4,5-dihydro-1H-pyrazol-1-yl)ethanone	1-(5-(2-hydroxy-5-nitrophenyl)-3-(thiophen-2-yl)-4,5-dihydro-1H-pyrazol-1-yl)ethanone	分子量：331.3 密度：N/A 沸点：N/A 熔点：N/A	868214-31-7	C₁₅H₁₃N₃O₄S
5-(4-(dimethylamino)phenyl)-1-ethyl-8,8-dimethyl-7,8,9,10-tetrahydropyrimido[4,5-b]quinoline-2,4,6(1H,3H,5H)-trione	5-(4-(dimethylamino)phenyl)-1-ethyl-8,8-dimethyl-7,8,9,10-tetrahydropyrimido[4,5-b]quinoline-2,4,6(1H,3H,5H)-trione	分子量：408.5 密度：N/A 沸点：N/A 熔点：N/A	868214-81-7	C₂₃H₂₈N₄O₃
2-((4-(2-methoxyethyl)-5-((1-methyl-1H-pyrrol-2-yl)methyl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-nitrophenyl)acetamide	2-((4-(2-methoxyethyl)-5-((1-methyl-1H-pyrrol-2-yl)methyl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-nitrophenyl)acetamide	分子量：430.5 密度：N/A 沸点：N/A 熔点：N/A	868230-13-1	C₁₉H₂₂N₆O₄S
N-(4,7-dichlorobenzo[d]thiazol-2-yl)-2,3-dihydrobenzo[b][1,4]dioxine-2-carboxamide	N-(4,7-dichlorobenzo[d]thiazol-2-yl)-2,3-dihydrobenzo[b][1,4]dioxine-2-carboxamide	分子量：381.2 密度：N/A 沸点：N/A 熔点：N/A	897618-15-4	C₁₆H₁₀Cl₂N₂O₃S
(Z)-4-((2,6-dimethylmorpholino)sulfonyl)-N-(4-ethoxy-3-(prop-2-yn-1-yl)benzo[d]thiazol-2(3H)-ylidene)benzamide	(Z)-4-((2,6-dimethylmorpholino)sulfonyl)-N-(4-ethoxy-3-(prop-2-yn-1-yl)benzo[d]thiazol-2(3H)-ylidene)benzamide	分子量：513.6 密度：N/A 沸点：N/A 熔点：N/A	868377-91-7	C₂₅H₂₇N₃O₅S₂
(Z)-4-(N,N-bis(2-methoxyethyl)sulfamoyl)-N-(5,7-dimethyl-3-(prop-2-yn-1-yl)benzo[d]thiazol-2(3H)-ylidene)benzamide	(Z)-4-(N,N-bis(2-methoxyethyl)sulfamoyl)-N-(5,7-dimethyl-3-(prop-2-yn-1-yl)benzo[d]thiazol-2(3H)-ylidene)benzamide	分子量：515.6 密度：N/A 沸点：N/A 熔点：N/A	868674-91-3	C₂₅H₂₉N₃O₅S₂
(Z)-4-(N,N-bis(2-methoxyethyl)sulfamoyl)-N-(4-methyl-3-(prop-2-yn-1-yl)benzo[d]thiazol-2(3H)-ylidene)benzamide	(Z)-4-(N,N-bis(2-methoxyethyl)sulfamoyl)-N-(4-methyl-3-(prop-2-yn-1-yl)benzo[d]thiazol-2(3H)-ylidene)benzamide	分子量：501.6 密度：N/A 沸点：N/A 熔点：N/A	868674-94-6	C₂₄H₂₇N₃O₅S₂
(Z)-methyl 2-(2-(benzoylimino)-5,7-dimethylbenzo[d]thiazol-3(2H)-yl)acetate	(Z)-methyl 2-(2-(benzoylimino)-5,7-dimethylbenzo[d]thiazol-3(2H)-yl)acetate	分子量：354.4 密度：N/A 沸点：N/A 熔点：N/A	1322222-22-9	C₁₉H₁₈N₂O₃S
2-[(2-Tert-butylphenyl)methyl]oxirane	2-[(2-Tert-butylphenyl)methyl]oxirane	分子量：190.28 密度：N/A 沸点：N/A 熔点：N/A	2228399-94-6	C₁₃H₁₈O
4-(N-methyl-N-((tetrahydrofuran-2-yl)methyl)sulfamoyl)-N-(2-methylbenzo[d]thiazol-5-yl)benzamide	4-(N-methyl-N-((tetrahydrofuran-2-yl)methyl)sulfamoyl)-N-(2-methylbenzo[d]thiazol-5-yl)benzamide	分子量：445.6 密度：N/A 沸点：N/A 熔点：N/A	868675-83-6	C₂₁H₂₃N₃O₄S₂
N-(4-(4-methoxyphenyl)thiazol-2-yl)-4-(N-methyl-N-((tetrahydrofuran-2-yl)methyl)sulfamoyl)benzamide	N-(4-(4-methoxyphenyl)thiazol-2-yl)-4-(N-methyl-N-((tetrahydrofuran-2-yl)methyl)sulfamoyl)benzamide	分子量：487.6 密度：N/A 沸点：N/A 熔点：N/A	868675-87-0	C₂₃H₂₅N₃O₅S₂
N-(4-(4-iodophenyl)thiazol-2-yl)-3-(phenylsulfonyl)propanamide	N-(4-(4-iodophenyl)thiazol-2-yl)-3-(phenylsulfonyl)propanamide	分子量：498.4 密度：N/A 沸点：N/A 熔点：N/A	892850-15-6	C₁₈H₁₅IN₂O₃S₂
Ethyl 4-phenyl-2-(3-(phenylsulfonyl)propanamido)thiazole-5-carboxylate	Ethyl 4-phenyl-2-(3-(phenylsulfonyl)propanamido)thiazole-5-carboxylate	分子量：444.5 密度：N/A 沸点：N/A 熔点：N/A	868676-11-3	C₂₁H₂₀N₂O₅S₂
N-(2-(1H-benzo[d]imidazol-2-yl)phenyl)-4-(N-methyl-N-((tetrahydrofuran-2-yl)methyl)sulfamoyl)benzamide	N-(2-(1H-benzo[d]imidazol-2-yl)phenyl)-4-(N-methyl-N-((tetrahydrofuran-2-yl)methyl)sulfamoyl)benzamide	分子量：490.6 密度：N/A 沸点：N/A 熔点：N/A	868676-18-0	C₂₆H₂₆N₄O₄S
N-(3-(benzo[d]thiazol-2-yl)-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)-3-(phenylsulfonyl)propanamide	N-(3-(benzo[d]thiazol-2-yl)-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)-3-(phenylsulfonyl)propanamide	分子量：482.6 密度：N/A 沸点：N/A 熔点：N/A	868676-28-2	C₂₄H₂₂N₂O₃S₃
4-(N-benzyl-N-isopropylsulfamoyl)-N-(4-(pyridin-4-yl)thiazol-2-yl)benzamide	4-(N-benzyl-N-isopropylsulfamoyl)-N-(4-(pyridin-4-yl)thiazol-2-yl)benzamide	分子量：492.6 密度：N/A 沸点：N/A 熔点：N/A	868676-41-9	C₂₅H₂₄N₄O₃S₂
N-(4,5-dihydroacenaphtho[5,4-d]thiazol-8-yl)-3-(phenylsulfonyl)propanamide	N-(4,5-dihydroacenaphtho[5,4-d]thiazol-8-yl)-3-(phenylsulfonyl)propanamide	分子量：422.5 密度：N/A 沸点：N/A 熔点：N/A	892854-01-2	C₂₂H₁₈N₂O₃S₂
Methyl 5-phenyl-3-(3-(phenylsulfonyl)propanamido)thiophene-2-carboxylate	Methyl 5-phenyl-3-(3-(phenylsulfonyl)propanamido)thiophene-2-carboxylate	分子量：429.5 密度：N/A 沸点：N/A 熔点：N/A	892854-12-5	C₂₁H₁₉NO₅S₂
N-(benzo[b]thiophen-5-yl)-4-(N-methyl-N-((tetrahydrofuran-2-yl)methyl)sulfamoyl)benzamide	N-(benzo[b]thiophen-5-yl)-4-(N-methyl-N-((tetrahydrofuran-2-yl)methyl)sulfamoyl)benzamide	分子量：430.5 密度：N/A 沸点：N/A 熔点：N/A	892854-15-8	C₂₁H₂₂N₂O₄S₂
N-(1-butyl-2-oxo-1,2-dihydrobenzo[cd]indol-6-yl)-3-(phenylsulfonyl)propanamide	N-(1-butyl-2-oxo-1,2-dihydrobenzo[cd]indol-6-yl)-3-(phenylsulfonyl)propanamide	分子量：436.5 密度：N/A 沸点：N/A 熔点：N/A	868676-63-5	C₂₄H₂₄N₂O₄S
N-(4-(4-benzylphenyl)thiazol-2-yl)-3-(phenylsulfonyl)propanamide	N-(4-(4-benzylphenyl)thiazol-2-yl)-3-(phenylsulfonyl)propanamide	分子量：462.6 密度：N/A 沸点：N/A 熔点：N/A	868676-64-6	C₂₅H₂₂N₂O₃S₂
8,9-Diethoxy-2-methyl-2-oxo-2lambda6-thia-3,5-diazabicyclo[4.4.0]deca-1(10),2,6,8-tetraen-4-one	8,9-Diethoxy-2-methyl-2-oxo-2lambda6-thia-3,5-diazabicyclo[4.4.0]deca-1(10),2,6,8-tetraen-4-one	分子量：284.33 密度：N/A 沸点：N/A 熔点：N/A	68560-14-5	C₁₂H₁₆N₂O₄S
N-(2-chlorophenyl)-4-(N-methyl-N-((tetrahydrofuran-2-yl)methyl)sulfamoyl)benzamide	N-(2-chlorophenyl)-4-(N-methyl-N-((tetrahydrofuran-2-yl)methyl)sulfamoyl)benzamide	分子量：408.9 密度：N/A 沸点：N/A 熔点：N/A	892855-97-9	C₁₉H₂₁ClN₂O₄S
4-(N-benzyl-N-isopropylsulfamoyl)-N-(2,4-difluorophenyl)benzamide	4-(N-benzyl-N-isopropylsulfamoyl)-N-(2,4-difluorophenyl)benzamide	分子量：444.5 密度：N/A 沸点：N/A 熔点：N/A	868676-79-3	C₂₃H₂₂F₂N₂O₃S
N-(4-fluorophenyl)-4-[methyl(tetrahydrofurfuryl)sulfamoyl]benzamide	N-(4-fluorophenyl)-4-[methyl(tetrahydrofurfuryl)sulfamoyl]benzamide	分子量：392.4 密度：N/A 沸点：N/A 熔点：N/A	868676-95-3	C₁₉H₂₁FN₂O₄S
N-(3-cyanothiophen-2-yl)-4-(N-methyl-N-((tetrahydrofuran-2-yl)methyl)sulfamoyl)benzamide	N-(3-cyanothiophen-2-yl)-4-(N-methyl-N-((tetrahydrofuran-2-yl)methyl)sulfamoyl)benzamide	分子量：405.5 密度：N/A 沸点：N/A 熔点：N/A	868676-98-6	C₁₈H₁₉N₃O₄S₂
N-(4,5-dichlorobenzo[d]thiazol-2-yl)-3-(phenylsulfonyl)propanamide	N-(4,5-dichlorobenzo[d]thiazol-2-yl)-3-(phenylsulfonyl)propanamide	分子量：415.3 密度：N/A 沸点：N/A 熔点：N/A	868677-52-5	C₁₆H₁₂Cl₂N₂O₃S₂
N-(4,6-dichlorobenzo[d]thiazol-2-yl)-3-(phenylsulfonyl)propanamide	N-(4,6-dichlorobenzo[d]thiazol-2-yl)-3-(phenylsulfonyl)propanamide	分子量：415.3 密度：N/A 沸点：N/A 熔点：N/A	868677-56-9	C₁₆H₁₂Cl₂N₂O₃S₂
(E)-ethyl 3-methyl-2-((3-(phenylsulfonyl)propanoyl)imino)-2,3-dihydrobenzo[d]thiazole-6-carboxylate	(E)-ethyl 3-methyl-2-((3-(phenylsulfonyl)propanoyl)imino)-2,3-dihydrobenzo[d]thiazole-6-carboxylate	分子量：432.5 密度：N/A 沸点：N/A 熔点：N/A	1322002-59-4	C₂₀H₂₀N₂O₅S₂
N-(4-bromobenzo[d]thiazol-2-yl)-4-((3,5-dimethylpiperidin-1-yl)sulfonyl)benzamide	N-(4-bromobenzo[d]thiazol-2-yl)-4-((3,5-dimethylpiperidin-1-yl)sulfonyl)benzamide	分子量：508.5 密度：N/A 沸点：N/A 熔点：N/A	896027-24-0	C₂₁H₂₂BrN₃O₃S₂
Butyl(4-chlorophenyl) sulfoxide	Butyl(4-chlorophenyl) sulfoxide	分子量：216.73 密度：N/A 沸点：N/A 熔点：N/A	46188-75-4	C₁₀H₁₃ClOS
Methyl 3-(2-methoxy-2-oxoethyl)-5-oxopyrrolidine-3-carboxylate	Methyl 3-(2-methoxy-2-oxoethyl)-5-oxopyrrolidine-3-carboxylate	分子量：215.20 密度：N/A 沸点：N/A 熔点：N/A	343947-91-1	C₉H₁₃NO₅
2-Chloro-4-methoxybenzene-1-thiol	2-Chloro-4-methoxybenzene-1-thiol	分子量：174.65 密度：N/A 沸点：N/A 熔点：N/A	89793-44-2	C₇H₇ClOS
N-(4-bromophenyl)-1-((4-fluorobenzyl)oxy)-2-oxo-1,2-dihydropyridine-3-carboxamide	N-(4-bromophenyl)-1-((4-fluorobenzyl)oxy)-2-oxo-1,2-dihydropyridine-3-carboxamide	分子量：417.2 密度：N/A 沸点：N/A 熔点：N/A	868678-09-5	C₁₉H₁₄BrFN₂O₃
N-(2-chloro-5-nitrophenyl)-1-((4-fluorobenzyl)oxy)-2-oxo-1,2-dihydropyridine-3-carboxamide	N-(2-chloro-5-nitrophenyl)-1-((4-fluorobenzyl)oxy)-2-oxo-1,2-dihydropyridine-3-carboxamide	分子量：417.8 密度：N/A 沸点：N/A 熔点：N/A	868678-43-7	C₁₉H₁₃ClFN₃O₅
5-Methyl-1,3-dioxane	5-Methyl-1,3-dioxane	分子量：102.13 密度：N/A 沸点：N/A 熔点：N/A	1120-98-5	C₅H₁₀O₂
N-(4-chloro-2-nitrophenyl)-1-((4-fluorobenzyl)oxy)-2-oxo-1,2-dihydropyridine-3-carboxamide	N-(4-chloro-2-nitrophenyl)-1-((4-fluorobenzyl)oxy)-2-oxo-1,2-dihydropyridine-3-carboxamide	分子量：417.8 密度：N/A 沸点：N/A 熔点：N/A	868678-46-0	C₁₉H₁₃ClFN₃O₅
N-(4-chloro-2-(trifluoromethyl)phenyl)-1-((4-fluorobenzyl)oxy)-2-oxo-1,2-dihydropyridine-3-carboxamide	N-(4-chloro-2-(trifluoromethyl)phenyl)-1-((4-fluorobenzyl)oxy)-2-oxo-1,2-dihydropyridine-3-carboxamide	分子量：440.8 密度：N/A 沸点：N/A 熔点：N/A	868678-49-3	C₂₀H₁₃ClF₄N₂O₃
N-(4-chloro-2-(2-chlorobenzoyl)phenyl)-1-((4-fluorobenzyl)oxy)-2-oxo-1,2-dihydropyridine-3-carboxamide	N-(4-chloro-2-(2-chlorobenzoyl)phenyl)-1-((4-fluorobenzyl)oxy)-2-oxo-1,2-dihydropyridine-3-carboxamide	分子量：511.3 密度：N/A 沸点：N/A 熔点：N/A	868678-55-1	C₂₆H₁₇Cl₂FN₂O₄
1-((4-fluorobenzyl)oxy)-2-oxo-N-(2,4,5-trichlorophenyl)-1,2-dihydropyridine-3-carboxamide	1-((4-fluorobenzyl)oxy)-2-oxo-N-(2,4,5-trichlorophenyl)-1,2-dihydropyridine-3-carboxamide	分子量：441.7 密度：N/A 沸点：N/A 熔点：N/A	868678-56-2	C₁₉H₁₂Cl₃FN₂O₃
N-(6-ethoxybenzo[d]thiazol-2-yl)-1-((4-fluorobenzyl)oxy)-2-oxo-1,2-dihydropyridine-3-carboxamide	N-(6-ethoxybenzo[d]thiazol-2-yl)-1-((4-fluorobenzyl)oxy)-2-oxo-1,2-dihydropyridine-3-carboxamide	分子量：439.5 密度：N/A 沸点：N/A 熔点：N/A	868678-59-5	C₂₂H₁₈FN₃O₄S
1-(4-Ethylphenyl)-2,2,2-trifluoroethanol	1-(4-Ethylphenyl)-2,2,2-trifluoroethanol	分子量：204.19 密度：N/A 沸点：N/A 熔点：N/A	131252-25-0	C₁₀H₁₁F₃O
4-Iodobicyclo[2.2.2]octan-1-yl acetate	4-Iodobicyclo[2.2.2]octan-1-yl acetate	分子量：294.13 密度：N/A 沸点：N/A 熔点：N/A	74467-16-6	C₁₀H₁₅IO₂
(4-Amino-3-methylphenyl)(4-phenyl-1-piperazinyl)methanone	(4-Amino-3-methylphenyl)(4-phenyl-1-piperazinyl)methanone	分子量：295.4 密度：N/A 沸点：N/A 熔点：N/A	1016760-56-7	C₁₈H₂₁N₃O
2-(Chloromethyl)-5-(3,4-dimethylphenyl)-1,3,4-oxadiazole	2-(Chloromethyl)-5-(3,4-dimethylphenyl)-1,3,4-oxadiazole	分子量：222.67 密度：N/A 沸点：N/A 熔点：N/A	1016729-20-6	C₁₁H₁₁ClN₂O
4-Methoxy-N-3-piperidinylbenzenepropanamide	4-Methoxy-N-3-piperidinylbenzenepropanamide	分子量：262.35 密度：N/A 沸点：N/A 熔点：N/A	1016526-48-9	C₁₅H₂₂N₂O₂
Tert-butyl 2-(isobutylamino)acetate	Tert-butyl 2-(isobutylamino)acetate	分子量：187.28 密度：N/A 沸点：N/A 熔点：N/A	66116-15-2	C₁₀H₂₁NO₂
N-((4-(3,4-dichlorophenyl)-5-(methylthio)-4H-1,2,4-triazol-3-yl)methyl)-3-methoxybenzamide	N-((4-(3,4-dichlorophenyl)-5-(methylthio)-4H-1,2,4-triazol-3-yl)methyl)-3-methoxybenzamide	分子量：423.3 密度：N/A 沸点：N/A 熔点：N/A	391918-55-1	C₁₈H₁₆Cl₂N₄O₂S
4-butoxy-N-((4-(3-chlorophenyl)-5-(methylthio)-4H-1,2,4-triazol-3-yl)methyl)benzamide	4-butoxy-N-((4-(3-chlorophenyl)-5-(methylthio)-4H-1,2,4-triazol-3-yl)methyl)benzamide	分子量：431.0 密度：N/A 沸点：N/A 熔点：N/A	391929-17-2	C₂₁H₂₃ClN₄O₂S
N-((4-(4-bromophenyl)-5-(methylthio)-4H-1,2,4-triazol-3-yl)methyl)-2,4-dichlorobenzamide	N-((4-(4-bromophenyl)-5-(methylthio)-4H-1,2,4-triazol-3-yl)methyl)-2,4-dichlorobenzamide	分子量：472.2 密度：N/A 沸点：N/A 熔点：N/A	391930-64-6	C₁₇H₁₃BrCl₂N₄OS