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-(1,1-dioxido-3-oxo-2-(o-tolyl)-2H-benzo[e][1,2,4]thiadiazin-4(3H)-yl)-N-(4-methylbenzyl)acetamide	2-(1,1-dioxido-3-oxo-2-(o-tolyl)-2H-benzo[e][1,2,4]thiadiazin-4(3H)-yl)-N-(4-methylbenzyl)acetamide	分子量：449.5 密度：N/A 沸点：N/A 熔点：N/A	941955-93-7	C₂₄H₂₃N₃O₄S
methyl 3-((2-(2,4-dimethylphenyl)-1,1-dioxido-3-oxo-2H-benzo[e][1,2,4]thiadiazin-4(3H)-yl)methyl)-4-methoxybenzoate	methyl 3-((2-(2,4-dimethylphenyl)-1,1-dioxido-3-oxo-2H-benzo[e][1,2,4]thiadiazin-4(3H)-yl)methyl)-4-methoxybenzoate	分子量：480.5 密度：N/A 沸点：N/A 熔点：N/A	941956-00-9	C₂₅H₂₄N₂O₆S
N-(2,4-difluorophenyl)-2-{7-methyl-2-oxo-3-[(phenylamino)methyl]-1,2-dihydroquinolin-1-yl}acetamide	N-(2,4-difluorophenyl)-2-{7-methyl-2-oxo-3-[(phenylamino)methyl]-1,2-dihydroquinolin-1-yl}acetamide	分子量：433.4 密度：N/A 沸点：N/A 熔点：N/A	932469-41-5	C₂₅H₂₁F₂N₃O₂
4-((1-(2-(cyclopentylamino)-2-oxoethyl)-2,4-dioxo-1,2-dihydrothieno[3,2-d]pyrimidin-3(4H)-yl)methyl)-N-methylcyclohexanecarboxamide	4-((1-(2-(cyclopentylamino)-2-oxoethyl)-2,4-dioxo-1,2-dihydrothieno[3,2-d]pyrimidin-3(4H)-yl)methyl)-N-methylcyclohexanecarboxamide	分子量：446.6 密度：N/A 沸点：N/A 熔点：N/A	941907-13-7	C₂₂H₃₀N₄O₄S
N-(5-chloro-2-methoxyphenyl)-2-(2-oxo-4-phenylquinazolin-1(2H)-yl)acetamide	N-(5-chloro-2-methoxyphenyl)-2-(2-oxo-4-phenylquinazolin-1(2H)-yl)acetamide	分子量：419.9 密度：N/A 沸点：N/A 熔点：N/A	932457-16-4	C₂₃H₁₈ClN₃O₃
2-(6-chloro-2-oxo-4-phenylquinazolin-1(2H)-yl)-N-(4-methoxybenzyl)acetamide	2-(6-chloro-2-oxo-4-phenylquinazolin-1(2H)-yl)-N-(4-methoxybenzyl)acetamide	分子量：433.9 密度：N/A 沸点：N/A 熔点：N/A	932321-29-4	C₂₄H₂₀ClN₃O₃
2-(6-chloro-2-oxo-4-phenylquinazolin-1(2H)-yl)-N-(2-methoxybenzyl)acetamide	2-(6-chloro-2-oxo-4-phenylquinazolin-1(2H)-yl)-N-(2-methoxybenzyl)acetamide	分子量：433.9 密度：N/A 沸点：N/A 熔点：N/A	932530-87-5	C₂₄H₂₀ClN₃O₃
N-benzyl-2-((cyanomethyl)thio)-4-oxo-3-pentyl-3,4-dihydroquinazoline-7-carboxamide	N-benzyl-2-((cyanomethyl)thio)-4-oxo-3-pentyl-3,4-dihydroquinazoline-7-carboxamide	分子量：420.5 密度：N/A 沸点：N/A 熔点：N/A	309749-64-2	C₂₃H₂₄N₄O₂S
2-{[5-(4-chlorophenyl)-2,2-dimethyl-2H-imidazol-4-yl]sulfanyl}-N-(4-methoxyphenyl)acetamide	2-{[5-(4-chlorophenyl)-2,2-dimethyl-2H-imidazol-4-yl]sulfanyl}-N-(4-methoxyphenyl)acetamide	分子量：401.9 密度：N/A 沸点：N/A 熔点：N/A	899927-51-6	C₂₀H₂₀ClN₃O₂S
2-((3-(3-fluorophenyl)-1,4-diazaspiro[4.4]nona-1,3-dien-2-yl)thio)-N-(4-methoxyphenyl)acetamide	2-((3-(3-fluorophenyl)-1,4-diazaspiro[4.4]nona-1,3-dien-2-yl)thio)-N-(4-methoxyphenyl)acetamide	分子量：411.5 密度：N/A 沸点：N/A 熔点：N/A	899904-83-7	C₂₂H₂₂FN₃O₂S
2-((5-(4-chlorophenyl)-2,2-dimethyl-2H-imidazol-4-yl)thio)-N-(3,4-dimethoxyphenyl)acetamide	2-((5-(4-chlorophenyl)-2,2-dimethyl-2H-imidazol-4-yl)thio)-N-(3,4-dimethoxyphenyl)acetamide	分子量：431.9 密度：N/A 沸点：N/A 熔点：N/A	899905-09-0	C₂₁H₂₂ClN₃O₃S
N-(4-fluorophenyl)-2-((3-phenyl-1,4-diazaspiro[4.4]nona-1,3-dien-2-yl)thio)acetamide	N-(4-fluorophenyl)-2-((3-phenyl-1,4-diazaspiro[4.4]nona-1,3-dien-2-yl)thio)acetamide	分子量：381.5 密度：N/A 沸点：N/A 熔点：N/A	899905-19-2	C₂₁H₂₀FN₃OS
N-(3,5-dimethoxyphenyl)-2-((2,2-dimethyl-5-phenyl-2H-imidazol-4-yl)thio)acetamide	N-(3,5-dimethoxyphenyl)-2-((2,2-dimethyl-5-phenyl-2H-imidazol-4-yl)thio)acetamide	分子量：397.5 密度：N/A 沸点：N/A 熔点：N/A	899906-83-3	C₂₁H₂₃N₃O₃S
1-(4-Fluorobenzoyl)-3-(4-methylphenyl)-1,4-diazaspiro[4.4]non-3-ene-2-thione	1-(4-Fluorobenzoyl)-3-(4-methylphenyl)-1,4-diazaspiro[4.4]non-3-ene-2-thione	分子量：366.5 密度：N/A 沸点：N/A 熔点：N/A	899909-74-1	C₂₁H₁₉FN₂OS
1-(3,4-Dimethoxybenzoyl)-3-(3,5-dimethoxyphenyl)-1,4-diazaspiro[4.4]non-3-ene-2-thione	1-(3,4-Dimethoxybenzoyl)-3-(3,5-dimethoxyphenyl)-1,4-diazaspiro[4.4]non-3-ene-2-thione	分子量：454.5 密度：N/A 沸点：N/A 熔点：N/A	899911-06-9	C₂₄H₂₆N₂O₅S
(3,4-dimethoxyphenyl)(2,2-dimethyl-5-thioxo-4-(p-tolyl)-2,5-dihydro-1H-imidazol-1-yl)methanone	(3,4-dimethoxyphenyl)(2,2-dimethyl-5-thioxo-4-(p-tolyl)-2,5-dihydro-1H-imidazol-1-yl)methanone	分子量：382.5 密度：N/A 沸点：N/A 熔点：N/A	899911-20-7	C₂₁H₂₂N₂O₃S
N-(3-chloro-4-methoxyphenyl)-2-((2,2-dimethyl-5-(p-tolyl)-2H-imidazol-4-yl)thio)acetamide	N-(3-chloro-4-methoxyphenyl)-2-((2,2-dimethyl-5-(p-tolyl)-2H-imidazol-4-yl)thio)acetamide	分子量：415.9 密度：N/A 沸点：N/A 熔点：N/A	899916-63-3	C₂₁H₂₂ClN₃O₂S
2-(5-(4-bromophenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl)-N-phenylacetamide	2-(5-(4-bromophenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl)-N-phenylacetamide	分子量：428.2 密度：N/A 沸点：N/A 熔点：N/A	1052605-48-7	C₁₈H₁₄BrN₅O₃
Ethyl 6-[(3,4-dimethylbenzenesulfonyl)methyl]-2-oxo-4-phenyl-1,2,3,4-tetrahydropyrimidine-5-carboxylate	Ethyl 6-[(3,4-dimethylbenzenesulfonyl)methyl]-2-oxo-4-phenyl-1,2,3,4-tetrahydropyrimidine-5-carboxylate	分子量：428.5 密度：N/A 沸点：N/A 熔点：N/A	902277-72-9	C₂₂H₂₄N₂O₅S
3-(4-chlorophenyl)-N-pentyl-[1,2,3]triazolo[1,5-a]quinazolin-5-amine	3-(4-chlorophenyl)-N-pentyl-[1,2,3]triazolo[1,5-a]quinazolin-5-amine	分子量：365.9 密度：N/A 沸点：N/A 熔点：N/A	902285-00-1	C₂₀H₂₀ClN₅
3-(4-chlorophenyl)-N-(3-ethoxypropyl)-[1,2,3]triazolo[1,5-a]quinazolin-5-amine	3-(4-chlorophenyl)-N-(3-ethoxypropyl)-[1,2,3]triazolo[1,5-a]quinazolin-5-amine	分子量：381.9 密度：N/A 沸点：N/A 熔点：N/A	902482-76-2	C₂₀H₂₀ClN₅O
N-(3,4-diethoxyphenethyl)-3-(4-methoxyphenyl)-[1,2,3]triazolo[1,5-a]quinazolin-5-amine	N-(3,4-diethoxyphenethyl)-3-(4-methoxyphenyl)-[1,2,3]triazolo[1,5-a]quinazolin-5-amine	分子量：483.6 密度：N/A 沸点：N/A 熔点：N/A	902285-24-9	C₂₈H₂₉N₅O₃
N-(3-chloro-2-methylphenyl)-2-((6-oxo-5-(phenylsulfonyl)-1,6-dihydropyrimidin-2-yl)thio)acetamide	N-(3-chloro-2-methylphenyl)-2-((6-oxo-5-(phenylsulfonyl)-1,6-dihydropyrimidin-2-yl)thio)acetamide	分子量：449.9 密度：N/A 沸点：N/A 熔点：N/A	904577-26-0	C₁₉H₁₆ClN₃O₄S₂
2-((5-((4-chlorophenyl)sulfonyl)-6-oxo-1,6-dihydropyrimidin-2-yl)thio)-N-(4-fluorophenyl)butanamide	2-((5-((4-chlorophenyl)sulfonyl)-6-oxo-1,6-dihydropyrimidin-2-yl)thio)-N-(4-fluorophenyl)butanamide	分子量：482.0 密度：N/A 沸点：N/A 熔点：N/A	904578-04-7	C₂₀H₁₇ClFN₃O₄S₂
4-((2,2-dimethoxyethyl)amino)quinazoline-2(1H)-thione	4-((2,2-dimethoxyethyl)amino)quinazoline-2(1H)-thione	分子量：265.33 密度：N/A 沸点：N/A 熔点：N/A	443348-19-4	C₁₂H₁₅N₃O₂S
N-(4-Amino-2-methylphenyl)-2-(4-ethylphenoxy)-propanamide	N-(4-Amino-2-methylphenyl)-2-(4-ethylphenoxy)-propanamide	分子量：298.4 密度：N/A 沸点：N/A 熔点：N/A	954576-09-1	C₁₈H₂₂N₂O₂
N-[1-(2,4-dichlorophenyl)ethyl]-3-[4,6-dimethyl-2-(methylsulfanyl)pyrimidin-5-yl]propanamide	N-[1-(2,4-dichlorophenyl)ethyl]-3-[4,6-dimethyl-2-(methylsulfanyl)pyrimidin-5-yl]propanamide	分子量：398.3 密度：N/A 沸点：N/A 熔点：N/A	949331-99-1	C₁₈H₂₁Cl₂N₃OS
3-[4,6-dimethyl-2-(methylsulfanyl)pyrimidin-5-yl]-N-methyl-N-(1-phenylethyl)propanamide	3-[4,6-dimethyl-2-(methylsulfanyl)pyrimidin-5-yl]-N-methyl-N-(1-phenylethyl)propanamide	分子量：343.5 密度：N/A 沸点：N/A 熔点：N/A	949643-66-7	C₁₉H₂₅N₃OS
N-(adamantan-1-yl)-1-phenylmethanesulfonamide	N-(adamantan-1-yl)-1-phenylmethanesulfonamide	分子量：305.4 密度：N/A 沸点：N/A 熔点：N/A	898065-22-0	C₁₇H₂₃NO₂S
1-[4-(2-Methyl-1,3-thiazol-4-yl)phenyl]methanamine dihydrochloride	1-[4-(2-Methyl-1,3-thiazol-4-yl)phenyl]methanamine dihydrochloride	分子量：277.2 密度：N/A 沸点：N/A 熔点：N/A	1052541-48-6	C₁₁H₁₄Cl₂N₂S
2-[4-(2-Methyl-1,3-thiazol-4-yl)phenyl]ethan-1-amine dihydrochloride	2-[4-(2-Methyl-1,3-thiazol-4-yl)phenyl]ethan-1-amine dihydrochloride	分子量：291.2 密度：N/A 沸点：N/A 熔点：N/A	1052541-72-6	C₁₂H₁₆Cl₂N₂S
3-Piperidin-3-yl-6-(trifluoromethyl)[1,2,4]triazolo[4,3-a]pyridine dihydrochloride	3-Piperidin-3-yl-6-(trifluoromethyl)[1,2,4]triazolo[4,3-a]pyridine dihydrochloride	分子量：343.17 密度：N/A 沸点：N/A 熔点：N/A	1052547-33-7	C₁₂H₁₅Cl₂F₃N₄
[(1-Cyano-1,2-dimethylpropyl)carbamoyl]methyl 3-(4-methyl-2-oxo-2,3-dihydro-1,3-thiazol-3-yl)propanoate	[(1-Cyano-1,2-dimethylpropyl)carbamoyl]methyl 3-(4-methyl-2-oxo-2,3-dihydro-1,3-thiazol-3-yl)propanoate	分子量：339.4 密度：N/A 沸点：N/A 熔点：N/A	874609-31-1	C₁₅H₂₁N₃O₄S
[(3-tert-butyl-1-phenyl-1H-pyrazol-5-yl)carbamoyl]methyl 5,6-dichloropyridine-3-carboxylate	[(3-tert-butyl-1-phenyl-1H-pyrazol-5-yl)carbamoyl]methyl 5,6-dichloropyridine-3-carboxylate	分子量：447.3 密度：N/A 沸点：N/A 熔点：N/A	956807-34-4	C₂₁H₂₀Cl₂N₄O₃
1-(4-Trifluoromethylbenzyl)piperazine 2HCl	1-(4-Trifluoromethylbenzyl)piperazine 2HCl	分子量：317.17 密度：N/A 沸点：N/A 熔点：N/A	1189890-21-8	C₁₂H₁₇Cl₂F₃N₂
Ethyl 2-(2-thienylsulfonyl)acetate	Ethyl 2-(2-thienylsulfonyl)acetate	分子量：234.3 密度：N/A 沸点：N/A 熔点：N/A	30749-65-6	C₈H₁₀O₄S₂
[(1-Cyano-1,2-dimethylpropyl)carbamoyl]methyl 3-(thiophene-2-sulfonamido)propanoate	[(1-Cyano-1,2-dimethylpropyl)carbamoyl]methyl 3-(thiophene-2-sulfonamido)propanoate	分子量：387.5 密度：N/A 沸点：N/A 熔点：N/A	878220-33-8	C₁₅H₂₁N₃O₅S₂
Doramapimod C-14	Doramapimod C-14	分子量：529.6 密度：N/A 沸点：N/A 熔点：N/A	850312-12-8	C₃₁H₃₇N₅O₃
3,3,4,4,5,5,5-Heptafluoro-2-methylpentan-2-amine	3,3,4,4,5,5,5-Heptafluoro-2-methylpentan-2-amine	分子量：227.12 密度：N/A 沸点：N/A 熔点：N/A	700803-36-7	C₆H₈F₇N
1-(2-methylpropyl)-5-(3-methylthiophen-2-yl)-5,9-dihydrofuro[3',4':5,6]pyrido[2,3-d]pyrimidine-2,4,6(1H,3H,8H)-trione	1-(2-methylpropyl)-5-(3-methylthiophen-2-yl)-5,9-dihydrofuro[3',4':5,6]pyrido[2,3-d]pyrimidine-2,4,6(1H,3H,8H)-trione	分子量：373.4 密度：N/A 沸点：N/A 熔点：N/A	874594-36-2	C₁₈H₁₉N₃O₄S
N-benzhydryl-1,3-dimethyl-1H-pyrazole-4-sulfonamide	N-benzhydryl-1,3-dimethyl-1H-pyrazole-4-sulfonamide	分子量：341.4 密度：N/A 沸点：N/A 熔点：N/A	898075-28-0	C₁₈H₁₉N₃O₂S
N-Propargyl-N-(4-phenoxybenzyl)amine	N-Propargyl-N-(4-phenoxybenzyl)amine	分子量：237.30 密度：N/A 沸点：N/A 熔点：N/A	169943-41-3	C₁₆H₁₅NO
Octahydro-1-methyl-1H-isoindole-1-carboxylic acid	Octahydro-1-methyl-1H-isoindole-1-carboxylic acid	分子量：183.25 密度：N/A 沸点：N/A 熔点：N/A	794501-17-0	C₁₀H₁₇NO₂
5,6-dichloro-N-(1-propylbenzimidazol-2-yl)pyridine-3-carboxamide	5,6-dichloro-N-(1-propylbenzimidazol-2-yl)pyridine-3-carboxamide	分子量：349.2 密度：N/A 沸点：N/A 熔点：N/A	924249-48-9	C₁₆H₁₄Cl₂N₄O
(2S,3R,4S,5S,6R)-2-[(2R,3R,4S,5S,6R)-2-[[(3S,7S,8R,9R,10R,12R,13R,14R,17S)-7,12-dihydroxy-4,4,8,10,14-pentamethyl-17-[(2S)-6-methyl-2-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyhept-5-en-2-yl]-2,3,7,9,11,12,13,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-3-yl]oxy]-4,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol	(2S,3R,4S,5S,6R)-2-[(2R,3R,4S,5S,6R)-2-[[(3S,7S,8R,9R,10R,12R,13R,14R,17S)-7,12-dihydroxy-4,4,8,10,14-pentamethyl-17-[(2S)-6-methyl-2-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyhept-5-en-2-yl]-2,3,7,9,11,12,13,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-3-yl]oxy]-4,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol	分子量：961.1 密度：N/A 沸点：N/A 熔点：N/A	193976-63-5	C₄₈H₈₀O₁₉
5,6,7,8-Tetrahydro-1-benzyloxynaphthalene-4-boronic acid	5,6,7,8-Tetrahydro-1-benzyloxynaphthalene-4-boronic acid	分子量：282.1 密度：N/A 沸点：N/A 熔点：N/A	221087-85-0	C₁₇H₁₉BO₃
1-[4-(2-Methoxyphenyl)piperazin-1-yl]-2-[(4-phenylphthalazin-1-yl)sulfanyl]ethan-1-one	1-[4-(2-Methoxyphenyl)piperazin-1-yl]-2-[(4-phenylphthalazin-1-yl)sulfanyl]ethan-1-one	分子量：470.6 密度：N/A 沸点：N/A 熔点：N/A	920892-95-1	C₂₇H₂₆N₄O₂S
1-(2,2-dimethylpropyl)-5-methyl-1H-pyrazol-4-amine	1-(2,2-dimethylpropyl)-5-methyl-1H-pyrazol-4-amine	分子量：167.25 密度：N/A 沸点：N/A 熔点：N/A	725746-88-3	C₉H₁₇N₃
Acridine-9-acetic acid	Acridine-9-acetic acid	分子量：237.25 密度：N/A 沸点：N/A 熔点：N/A	434342-62-8	C₁₅H₁₁NO₂
1-{[1-(1,2-Dibromo-1,2,2-trifluoroethoxy)-1,1,2,3,3,3-hexafluoropropan-2-yl]oxy}-1,1,2,2,3,3,3-heptafluoropropane	1-{[1-(1,2-Dibromo-1,2,2-trifluoroethoxy)-1,1,2,3,3,3-hexafluoropropan-2-yl]oxy}-1,1,2,2,3,3,3-heptafluoropropane	分子量：591.87 密度：N/A 沸点：N/A 熔点：N/A	115783-72-7	C₈Br₂F₁₆O₂