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-(1H-1,2,3,4-tetrazol-5-yl)benzene-1-sulfonyl chloride	3-(1H-1,2,3,4-tetrazol-5-yl)benzene-1-sulfonyl chloride	分子量：244.66 密度：N/A 沸点：N/A 熔点：N/A	476362-71-7	C₇H₅ClN₄O₂S
6-(4-Iodophenyl)-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazole	6-(4-Iodophenyl)-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazole	分子量：328.13 密度：N/A 沸点：N/A 熔点：N/A	1071415-66-1	C₉H₅IN₄S
3-(Cyclopropylmethylsulfamoyl)-4-methylbenzoic acid	3-(Cyclopropylmethylsulfamoyl)-4-methylbenzoic acid	分子量：269.32 密度：N/A 沸点：N/A 熔点：N/A	1041539-33-6	C₁₂H₁₅NO₄S
1-(azocan-1-yl)-3-(1H-indol-3-yl)propan-1-one	1-(azocan-1-yl)-3-(1H-indol-3-yl)propan-1-one	分子量：284.4 密度：N/A 沸点：N/A 熔点：N/A	98563-50-9	C₁₈H₂₄N₂O
2-Chloro-5H,6H,7H,8H,9H,10H-cycloocta[B]pyridine-3,4-dicarbonitrile	2-Chloro-5H,6H,7H,8H,9H,10H-cycloocta[B]pyridine-3,4-dicarbonitrile	分子量：245.71 密度：N/A 沸点：N/A 熔点：N/A	1020244-32-9	C₁₃H₁₂ClN₃
6-bromo-2-(trifluoromethyl)-4H-chromen-4-one	6-bromo-2-(trifluoromethyl)-4H-chromen-4-one	分子量：293.04 密度：N/A 沸点：N/A 熔点：N/A	365242-42-8	C₁₀H₄BrF₃O₂
Benzyl 3-{[(benzyloxy)carbonyl]amino}phenyl carbonate	Benzyl 3-{[(benzyloxy)carbonyl]amino}phenyl carbonate	分子量：377.4 密度：N/A 沸点：N/A 熔点：N/A	1020241-31-9	C₂₂H₁₉NO₅
2-(Diethylamino)-4-methylthiazole-5-carboxylic acid	2-(Diethylamino)-4-methylthiazole-5-carboxylic acid	分子量：214.29 密度：N/A 沸点：N/A 熔点：N/A	1071329-00-4	C₉H₁₄N₂O₂S
4-(5-Amino-2H-benzotriazol-2-yl)benzoic acid	4-(5-Amino-2H-benzotriazol-2-yl)benzoic acid	分子量：254.24 密度：N/A 沸点：N/A 熔点：N/A	123228-42-2	C₁₃H₁₀N₄O₂
3-(3-Bromophenyl)-1,8-naphthyridin-2-ol	3-(3-Bromophenyl)-1,8-naphthyridin-2-ol	分子量：301.14 密度：N/A 沸点：N/A 熔点：N/A	1082510-10-8	C₁₄H₉BrN₂O
5-bromo-N-(2,6-difluorophenyl)pyridin-2-amine	5-bromo-N-(2,6-difluorophenyl)pyridin-2-amine	分子量：285.09 密度：N/A 沸点：N/A 熔点：N/A	475634-96-9	C₁₁H₇BrF₂N₂
8-Chloroquinoline-2-carboxamide	8-Chloroquinoline-2-carboxamide	分子量：206.63 密度：N/A 沸点：N/A 熔点：N/A	1070370-89-6	C₁₀H₇ClN₂O
2-Chloro-2,2-difluoroethan-1-amine	2-Chloro-2,2-difluoroethan-1-amine	分子量：115.51 密度：N/A 沸点：N/A 熔点：N/A	758638-01-6	C₂H₄ClF₂N
tert-Butyl 3-(5-bromopyridin-2-yl)prop-2-ynylcarbamate	tert-Butyl 3-(5-bromopyridin-2-yl)prop-2-ynylcarbamate	分子量：311.17 密度：N/A 沸点：N/A 熔点：N/A	479400-92-5	C₁₃H₁₅BrN₂O₂
2-chloro-N-(pyridin-4-yl)-5-(1H-tetrazol-1-yl)benzamide	2-chloro-N-(pyridin-4-yl)-5-(1H-tetrazol-1-yl)benzamide	分子量：300.70 密度：N/A 沸点：N/A 熔点：N/A	1040690-32-1	C₁₃H₉ClN₆O
2-[3-(4-Methylpiperazin-1-yl)propoxy]aniline	2-[3-(4-Methylpiperazin-1-yl)propoxy]aniline	分子量：249.35 密度：N/A 沸点：N/A 熔点：N/A	1082510-08-4	C₁₄H₂₃N₃O
Methyl 6-bromo-2,2-dimethyl-3-oxo-1,2,3,4-tetrahydroquinoxaline-5-carboxylate	Methyl 6-bromo-2,2-dimethyl-3-oxo-1,2,3,4-tetrahydroquinoxaline-5-carboxylate	分子量：313.15 密度：N/A 沸点：N/A 熔点：N/A	949891-56-9	C₁₂H₁₃BrN₂O₃
3-Ethyl-5-hydroxybenzoic acid	3-Ethyl-5-hydroxybenzoic acid	分子量：166.17 密度：N/A 沸点：N/A 熔点：N/A	744957-37-7	C₉H₁₀O₃
4-Chloro-6-(3,4-dihydro-2(1H)-isoquinolinyl)-5-pyrimidinamine	4-Chloro-6-(3,4-dihydro-2(1H)-isoquinolinyl)-5-pyrimidinamine	分子量：260.72 密度：N/A 沸点：N/A 熔点：N/A	882767-88-6	C₁₃H₁₃ClN₄
4-(4-Fluorophenyl)bicyclo[2.2.2]octane-1-carboxylic acid	4-(4-Fluorophenyl)bicyclo[2.2.2]octane-1-carboxylic acid	分子量：248.29 密度：N/A 沸点：N/A 熔点：N/A	68756-19-4	C₁₅H₁₇FO₂
3-Chloro-N-(2-(isopropylamino)-2-oxoethyl)benzamide	3-Chloro-N-(2-(isopropylamino)-2-oxoethyl)benzamide	分子量：254.71 密度：N/A 沸点：N/A 熔点：N/A	1090393-69-3	C₁₂H₁₅ClN₂O₂
1-((5-(1,1-Dioxido-3-oxoisothiazolidin-2-yl)-2-methylphenyl)sulfonyl)piperidine-4-carboxamide	1-((5-(1,1-Dioxido-3-oxoisothiazolidin-2-yl)-2-methylphenyl)sulfonyl)piperidine-4-carboxamide	分子量：415.5 密度：N/A 沸点：N/A 熔点：N/A	1007682-14-5	C₁₆H₂₁N₃O₆S₂
N-{3-[3-(4-methoxyphenyl)-6-oxo-1,6-dihydropyridazin-1-yl]propyl}-2,4-dimethyl-1,3-thiazole-5-carboxamide	N-{3-[3-(4-methoxyphenyl)-6-oxo-1,6-dihydropyridazin-1-yl]propyl}-2,4-dimethyl-1,3-thiazole-5-carboxamide	分子量：398.5 密度：N/A 沸点：N/A 熔点：N/A	1040668-88-9	C₂₀H₂₂N₄O₃S
N-(3-(3-(4-methoxyphenyl)-6-oxopyridazin-1(6H)-yl)propyl)-4-sulfamoylbenzamide	N-(3-(3-(4-methoxyphenyl)-6-oxopyridazin-1(6H)-yl)propyl)-4-sulfamoylbenzamide	分子量：442.5 密度：N/A 沸点：N/A 熔点：N/A	1021266-35-2	C₂₁H₂₂N₄O₅S
N-{3-[3-(4-methoxyphenyl)-6-oxo-1,6-dihydropyridazin-1-yl]propyl}pyridine-3-sulfonamide	N-{3-[3-(4-methoxyphenyl)-6-oxo-1,6-dihydropyridazin-1-yl]propyl}pyridine-3-sulfonamide	分子量：400.5 密度：N/A 沸点：N/A 熔点：N/A	1040669-49-5	C₁₉H₂₀N₄O₄S
3-[3-(6-Oxo-3-phenyl-1,6-dihydropyridazin-1-yl)propyl]-1-[3-(trifluoromethyl)phenyl]urea	3-[3-(6-Oxo-3-phenyl-1,6-dihydropyridazin-1-yl)propyl]-1-[3-(trifluoromethyl)phenyl]urea	分子量：416.4 密度：N/A 沸点：N/A 熔点：N/A	1058199-39-5	C₂₁H₁₉F₃N₄O₂
3-[3-(6-Oxo-3-phenyl-1,6-dihydropyridazin-1-yl)propyl]-1-[2-(trifluoromethyl)phenyl]urea	3-[3-(6-Oxo-3-phenyl-1,6-dihydropyridazin-1-yl)propyl]-1-[2-(trifluoromethyl)phenyl]urea	分子量：416.4 密度：N/A 沸点：N/A 熔点：N/A	1058376-00-3	C₂₁H₁₉F₃N₄O₂
1-(benzo[d][1,3]dioxol-5-yl)-3-(3-(6-oxo-3-(p-tolyl)pyridazin-1(6H)-yl)propyl)urea	1-(benzo[d][1,3]dioxol-5-yl)-3-(3-(6-oxo-3-(p-tolyl)pyridazin-1(6H)-yl)propyl)urea	分子量：406.4 密度：N/A 沸点：N/A 熔点：N/A	1040671-93-9	C₂₂H₂₂N₄O₄
2-(benzo[d][1,3]dioxol-5-yloxy)-N-(3-(3-(4-chlorophenyl)-6-oxopyridazin-1(6H)-yl)propyl)acetamide	2-(benzo[d][1,3]dioxol-5-yloxy)-N-(3-(3-(4-chlorophenyl)-6-oxopyridazin-1(6H)-yl)propyl)acetamide	分子量：441.9 密度：N/A 沸点：N/A 熔点：N/A	1021254-08-9	C₂₂H₂₀ClN₃O₅
2-(4-fluorophenyl)-N-{[1-(thiophen-2-yl)cyclopentyl]methyl}acetamide	2-(4-fluorophenyl)-N-{[1-(thiophen-2-yl)cyclopentyl]methyl}acetamide	分子量：317.4 密度：N/A 沸点：N/A 熔点：N/A	1060214-31-4	C₁₈H₂₀FNOS
3,4-dimethoxy-N-{[1-(thiophen-2-yl)cyclopentyl]methyl}benzamide	3,4-dimethoxy-N-{[1-(thiophen-2-yl)cyclopentyl]methyl}benzamide	分子量：345.5 密度：N/A 沸点：N/A 熔点：N/A	1060215-10-2	C₁₉H₂₃NO₃S
N'-[2-(cyclohex-1-en-1-yl)ethyl]-N-{[1-(thiophen-2-yl)cyclopentyl]methyl}ethanediamide	N'-[2-(cyclohex-1-en-1-yl)ethyl]-N-{[1-(thiophen-2-yl)cyclopentyl]methyl}ethanediamide	分子量：360.5 密度：N/A 沸点：N/A 熔点：N/A	1058184-60-3	C₂₀H₂₈N₂O₂S
3-[2-Oxo-2-(1,2,3,4-tetrahydroisoquinolin-2-yl)ethyl]-6-phenyl-3,4-dihydropyrimidin-4-one	3-[2-Oxo-2-(1,2,3,4-tetrahydroisoquinolin-2-yl)ethyl]-6-phenyl-3,4-dihydropyrimidin-4-one	分子量：345.4 密度：N/A 沸点：N/A 熔点：N/A	1058422-44-8	C₂₁H₁₉N₃O₂
N-cyclopentyl-2-[4-(4-methylphenyl)-6-oxo-1,6-dihydropyrimidin-1-yl]acetamide	N-cyclopentyl-2-[4-(4-methylphenyl)-6-oxo-1,6-dihydropyrimidin-1-yl]acetamide	分子量：311.4 密度：N/A 沸点：N/A 熔点：N/A	1058423-27-0	C₁₈H₂₁N₃O₂
N-cyclohexyl-2-(4-(4-methoxyphenyl)-6-oxopyrimidin-1(6H)-yl)-N-methylacetamide	N-cyclohexyl-2-(4-(4-methoxyphenyl)-6-oxopyrimidin-1(6H)-yl)-N-methylacetamide	分子量：355.4 密度：N/A 沸点：N/A 熔点：N/A	1058373-26-4	C₂₀H₂₅N₃O₃
6-(4-Methoxyphenyl)-3-[2-oxo-2-(pyrrolidin-1-yl)ethyl]-3,4-dihydropyrimidin-4-one	6-(4-Methoxyphenyl)-3-[2-oxo-2-(pyrrolidin-1-yl)ethyl]-3,4-dihydropyrimidin-4-one	分子量：313.35 密度：N/A 沸点：N/A 熔点：N/A	1058436-95-5	C₁₇H₁₉N₃O₃
6-(4-Methoxyphenyl)-3-[2-oxo-2-(piperidin-1-yl)ethyl]-3,4-dihydropyrimidin-4-one	6-(4-Methoxyphenyl)-3-[2-oxo-2-(piperidin-1-yl)ethyl]-3,4-dihydropyrimidin-4-one	分子量：327.4 密度：N/A 沸点：N/A 熔点：N/A	1058373-27-5	C₁₈H₂₁N₃O₃
2-[4-(4-methoxyphenyl)-6-oxo-1,6-dihydropyrimidin-1-yl]-N-[(pyridin-2-yl)methyl]acetamide	2-[4-(4-methoxyphenyl)-6-oxo-1,6-dihydropyrimidin-1-yl]-N-[(pyridin-2-yl)methyl]acetamide	分子量：350.4 密度：N/A 沸点：N/A 熔点：N/A	1058198-03-0	C₁₉H₁₈N₄O₃
2-[4-(4-fluorophenyl)-6-oxo-1,6-dihydropyrimidin-1-yl]-N-[(4-fluorophenyl)methyl]acetamide	2-[4-(4-fluorophenyl)-6-oxo-1,6-dihydropyrimidin-1-yl]-N-[(4-fluorophenyl)methyl]acetamide	分子量：355.3 密度：N/A 沸点：N/A 熔点：N/A	1058239-97-6	C₁₉H₁₅F₂N₃O₂
N-(2-ethylphenyl)-2-[4-(4-fluorophenyl)-6-oxo-1,6-dihydropyrimidin-1-yl]acetamide	N-(2-ethylphenyl)-2-[4-(4-fluorophenyl)-6-oxo-1,6-dihydropyrimidin-1-yl]acetamide	分子量：351.4 密度：N/A 沸点：N/A 熔点：N/A	1060206-13-4	C₂₀H₁₈FN₃O₂
2-[4-(4-fluorophenyl)-6-oxo-1,6-dihydropyrimidin-1-yl]-N-[(pyridin-4-yl)methyl]acetamide	2-[4-(4-fluorophenyl)-6-oxo-1,6-dihydropyrimidin-1-yl]-N-[(pyridin-4-yl)methyl]acetamide	分子量：338.3 密度：N/A 沸点：N/A 熔点：N/A	1058501-15-7	C₁₈H₁₅FN₄O₂
2-[4-(4-fluorophenyl)-6-oxo-1,6-dihydropyrimidin-1-yl]-N-(2-phenylethyl)acetamide	2-[4-(4-fluorophenyl)-6-oxo-1,6-dihydropyrimidin-1-yl]-N-(2-phenylethyl)acetamide	分子量：351.4 密度：N/A 沸点：N/A 熔点：N/A	1058240-01-9	C₂₀H₁₈FN₃O₂
Ethyl 4-{2-[4-(4-ethoxyphenyl)-6-oxo-1,6-dihydropyrimidin-1-yl]acetamido}benzoate	Ethyl 4-{2-[4-(4-ethoxyphenyl)-6-oxo-1,6-dihydropyrimidin-1-yl]acetamido}benzoate	分子量：421.4 密度：N/A 沸点：N/A 熔点：N/A	1060189-63-0	C₂₃H₂₃N₃O₅
1-(Furan-2-ylmethyl)piperidin-4-ol	1-(Furan-2-ylmethyl)piperidin-4-ol	分子量：181.23 密度：N/A 沸点：N/A 熔点：N/A	1044770-16-2	C₁₀H₁₅NO₂
N-[2-({3-methyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)ethyl]-4-(trifluoromethoxy)benzene-1-sulfonamide	N-[2-({3-methyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)ethyl]-4-(trifluoromethoxy)benzene-1-sulfonamide	分子量：417.4 密度：N/A 沸点：N/A 熔点：N/A	1021216-46-5	C₁₅H₁₄F₃N₅O₄S
N-[2-({3-methyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)ethyl]-4-(trifluoromethyl)benzene-1-sulfonamide	N-[2-({3-methyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)ethyl]-4-(trifluoromethyl)benzene-1-sulfonamide	分子量：401.4 密度：N/A 沸点：N/A 熔点：N/A	1021263-40-0	C₁₅H₁₄F₃N₅O₃S
3-Cyclopropyl-6-(4-((2,4-difluorophenyl)sulfonyl)piperazin-1-yl)-[1,2,4]triazolo[4,3-b]pyridazine	3-Cyclopropyl-6-(4-((2,4-difluorophenyl)sulfonyl)piperazin-1-yl)-[1,2,4]triazolo[4,3-b]pyridazine	分子量：420.4 密度：N/A 沸点：N/A 熔点：N/A	1040641-64-2	C₁₈H₁₈F₂N₆O₂S
2-[4-(2,4-dimethoxybenzenesulfonamido)phenyl]-N,N-dimethylacetamide	2-[4-(2,4-dimethoxybenzenesulfonamido)phenyl]-N,N-dimethylacetamide	分子量：378.4 密度：N/A 沸点：N/A 熔点：N/A	1070964-49-6	C₁₈H₂₂N₂O₅S
2-[4-(5-ethyl-2-methoxybenzenesulfonamido)phenyl]-N-[(thiophen-2-yl)methyl]acetamide	2-[4-(5-ethyl-2-methoxybenzenesulfonamido)phenyl]-N-[(thiophen-2-yl)methyl]acetamide	分子量：444.6 密度：N/A 沸点：N/A 熔点：N/A	1060246-11-8	C₂₂H₂₄N₂O₄S₂
4-chloro-N-(2-{[4-(2-methylpropanamido)phenyl]formamido}ethyl)benzamide	4-chloro-N-(2-{[4-(2-methylpropanamido)phenyl]formamido}ethyl)benzamide	分子量：387.9 密度：N/A 沸点：N/A 熔点：N/A	1021219-60-2	C₂₀H₂₂ClN₃O₃