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
I+/--Cyano-3-hydroxybenzenepropanoic acid	I+/--Cyano-3-hydroxybenzenepropanoic acid	分子量：191.18 密度：N/A 沸点：N/A 熔点：N/A	54673-08-4	C₁₀H₉NO₃
Terodiline hydrochloride, (R)-	Terodiline hydrochloride, (R)-	分子量：317.9 密度：N/A 沸点：N/A 熔点：N/A	112652-51-4	C₂₀H₂₈ClN
4-[2-Cyano-3-(3-methoxyphenyl)prop-2-enamido]benzoic acid	4-[2-Cyano-3-(3-methoxyphenyl)prop-2-enamido]benzoic acid	分子量：322.3 密度：N/A 沸点：N/A 熔点：N/A	1054422-37-5	C₁₈H₁₄N₂O₄
5-(Tert-butylsulfamoyl)-2-chlorobenzoic acid	5-(Tert-butylsulfamoyl)-2-chlorobenzoic acid	分子量：291.75 密度：N/A 沸点：N/A 熔点：N/A	716360-58-6	C₁₁H₁₄ClNO₄S
2-chloro-5-(2,3-dihydro-1H-indole-1-sulfonyl)benzoic acid	2-chloro-5-(2,3-dihydro-1H-indole-1-sulfonyl)benzoic acid	分子量：337.8 密度：N/A 沸点：N/A 熔点：N/A	1031062-84-6	C₁₅H₁₂ClNO₄S
2-Chloro-4-(N-(n-butyl)anilino)pyrimidine	2-Chloro-4-(N-(n-butyl)anilino)pyrimidine	分子量：261.75 密度：N/A 沸点：N/A 熔点：N/A	260045-67-8	C₁₄H₁₆ClN₃
2-(2-{2-Cyano-2-[(propan-2-yl)carbamoyl]eth-1-en-1-yl}phenoxy)acetic acid	2-(2-{2-Cyano-2-[(propan-2-yl)carbamoyl]eth-1-en-1-yl}phenoxy)acetic acid	分子量：288.30 密度：N/A 沸点：N/A 熔点：N/A	363582-88-1	C₁₅H₁₆N₂O₄
N'-hydroxy-2-methoxypentanimidamide	N'-hydroxy-2-methoxypentanimidamide	分子量：146.19 密度：N/A 沸点：N/A 熔点：N/A	1603895-21-1	C₆H₁₄N₂O₂
2-{3-[2-(Carboxymethoxy)phenyl]-2-cyanoprop-2-enamido}benzoic acid	2-{3-[2-(Carboxymethoxy)phenyl]-2-cyanoprop-2-enamido}benzoic acid	分子量：366.3 密度：N/A 沸点：N/A 熔点：N/A	1054520-24-9	C₁₉H₁₄N₂O₆
4-[2-Cyano-2-(4-phenylpiperazine-1-carbonyl)eth-1-en-1-yl]benzoic acid	4-[2-Cyano-2-(4-phenylpiperazine-1-carbonyl)eth-1-en-1-yl]benzoic acid	分子量：361.4 密度：N/A 沸点：N/A 熔点：N/A	895292-33-8	C₂₁H₁₉N₃O₃
1-[2-[(5,6-Dimethylthieno[2,3-d]pyrimidin-4-yl)thio]acetyl]-4-piperidinecarboxylic acid	1-[2-[(5,6-Dimethylthieno[2,3-d]pyrimidin-4-yl)thio]acetyl]-4-piperidinecarboxylic acid	分子量：365.5 密度：N/A 沸点：N/A 熔点：N/A	1054430-08-8	C₁₆H₁₉N₃O₃S₂
2-[4-(N-methyl-2-phenoxyacetamido)phenyl]acetic acid	2-[4-(N-methyl-2-phenoxyacetamido)phenyl]acetic acid	分子量：299.32 密度：N/A 沸点：N/A 熔点：N/A	1018292-09-5	C₁₇H₁₇NO₄
(2S)-2-(dimethylamino)butanoic acid	(2S)-2-(dimethylamino)butanoic acid	分子量：131.17 密度：N/A 沸点：N/A 熔点：N/A	1448220-61-8	C₆H₁₃NO₂
2-(2-Isopropyl-5-methylphenoxy)aniline	2-(2-Isopropyl-5-methylphenoxy)aniline	分子量：241.33 密度：N/A 沸点：N/A 熔点：N/A	946682-17-3	C₁₆H₁₉NO
Benzoic acid, 2-methyl-5-[[[4-(2-phenyldiazenyl)phenyl]amino]sulfonyl]-	Benzoic acid, 2-methyl-5-[[[4-(2-phenyldiazenyl)phenyl]amino]sulfonyl]-	分子量：395.4 密度：N/A 沸点：N/A 熔点：N/A	1054383-10-6	C₂₀H₁₇N₃O₄S
(2R)-3-(3,4-dihydroxyphenyl)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid	(2R)-3-(3,4-dihydroxyphenyl)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid	分子量：419.4 密度：N/A 沸点：N/A 熔点：N/A	1252683-32-1	C₂₄H₂₁NO₆
ethyl 4-[1-(4-methylphenyl)-1H-1,2,3-triazole-4-carbonyl]piperazine-1-carboxylate	ethyl 4-[1-(4-methylphenyl)-1H-1,2,3-triazole-4-carbonyl]piperazine-1-carboxylate	分子量：343.4 密度：N/A 沸点：N/A 熔点：N/A	1019191-55-9	C₁₇H₂₁N₅O₃
Ethyl (2S)-3-amino-2-methylpropanoate	Ethyl (2S)-3-amino-2-methylpropanoate	分子量：131.17 密度：N/A 沸点：N/A 熔点：N/A	917894-31-6	C₆H₁₃NO₂
ethyl 4-[1-(3-chlorophenyl)-1H-1,2,3-triazole-4-carbonyl]piperazine-1-carboxylate	ethyl 4-[1-(3-chlorophenyl)-1H-1,2,3-triazole-4-carbonyl]piperazine-1-carboxylate	分子量：363.80 密度：N/A 沸点：N/A 熔点：N/A	1019191-57-1	C₁₆H₁₈ClN₅O₃
ethyl 4-(1-(3-chlorophenyl)-1H-1,2,3-triazole-4-carboxamido)piperidine-1-carboxylate	ethyl 4-(1-(3-chlorophenyl)-1H-1,2,3-triazole-4-carboxamido)piperidine-1-carboxylate	分子量：377.8 密度：N/A 沸点：N/A 熔点：N/A	1019191-59-3	C₁₇H₂₀ClN₅O₃
7-[(furan-2-yl)methyl]-6-{[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]sulfanyl}-2H,7H,8H-[1,3]dioxolo[4,5-g]quinazolin-8-one	7-[(furan-2-yl)methyl]-6-{[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]sulfanyl}-2H,7H,8H-[1,3]dioxolo[4,5-g]quinazolin-8-one	分子量：460.5 密度：N/A 沸点：N/A 熔点：N/A	1019178-71-2	C₂₃H₁₆N₄O₅S
N-{5-[(E)-2-(5-{[(2,3-dimethylphenyl)amino]sulfonyl}-2-thienyl)vinyl]-3-methylisoxazol-4-yl}acetamide	N-{5-[(E)-2-(5-{[(2,3-dimethylphenyl)amino]sulfonyl}-2-thienyl)vinyl]-3-methylisoxazol-4-yl}acetamide	分子量：494.9 密度：N/A 沸点：N/A 熔点：N/A	1019178-74-5	C₂₃H₁₅ClN₄O₅S
6-(((3-(3-chlorophenyl)-1,2,4-oxadiazol-5-yl)methyl)thio)-7-(furan-2-ylmethyl)-[1,3]dioxolo[4,5-g]quinazolin-8(7H)-one	6-(((3-(3-chlorophenyl)-1,2,4-oxadiazol-5-yl)methyl)thio)-7-(furan-2-ylmethyl)-[1,3]dioxolo[4,5-g]quinazolin-8(7H)-one	分子量：494.9 密度：N/A 沸点：N/A 熔点：N/A	1019178-77-8	C₂₃H₁₅ClN₄O₅S
2,4-Bis(trichloromethyl)benzonitrile	2,4-Bis(trichloromethyl)benzonitrile	分子量：337.8 密度：N/A 沸点：N/A 熔点：N/A	50393-54-9	C₉H₃Cl₆N
ethyl 2-cyano-2-(5-oxo-5H-[1]benzopyrano-[2,3-b]pyridin-7-yl)propionate	ethyl 2-cyano-2-(5-oxo-5H-[1]benzopyrano-[2,3-b]pyridin-7-yl)propionate	分子量：322.3 密度：N/A 沸点：N/A 熔点：N/A	52549-18-5	C₁₈H₁₄N₂O₄
N-[2-(isopropylamino)ethyl]-p-toluenesulfonamide	N-[2-(isopropylamino)ethyl]-p-toluenesulfonamide	分子量：256.37 密度：N/A 沸点：N/A 熔点：N/A	58677-42-2	C₁₂H₂₀N₂O₂S
3-[3-(N-methylacetamido)phenyl]propanoic acid	3-[3-(N-methylacetamido)phenyl]propanoic acid	分子量：221.25 密度：N/A 沸点：N/A 熔点：N/A	1018534-61-6	C₁₂H₁₅NO₃
N-(4-{[4-(dimethylamino)-6-methylpyrimidin-2-yl]amino}phenyl)-2,5-diethoxybenzene-1-sulfonamide	N-(4-{[4-(dimethylamino)-6-methylpyrimidin-2-yl]amino}phenyl)-2,5-diethoxybenzene-1-sulfonamide	分子量：471.6 密度：N/A 沸点：N/A 熔点：N/A	946220-86-6	C₂₃H₂₉N₅O₄S
6-chloro-N-(4-fluorophenyl)-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine	6-chloro-N-(4-fluorophenyl)-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine	分子量：277.68 密度：N/A 沸点：N/A 熔点：N/A	1021268-94-9	C₁₂H₉ClFN₅
2-[4-(4-ethoxybenzoyl)piperazin-1-yl]-6-methyl-N-phenylpyrimidin-4-amine	2-[4-(4-ethoxybenzoyl)piperazin-1-yl]-6-methyl-N-phenylpyrimidin-4-amine	分子量：417.5 密度：N/A 沸点：N/A 熔点：N/A	946382-81-6	C₂₄H₂₇N₅O₂
N-cyclohexyl-2-((7-(4-ethoxyphenyl)-6,7-dihydro-5H-imidazo[2,1-c][1,2,4]triazol-3-yl)thio)acetamide	N-cyclohexyl-2-((7-(4-ethoxyphenyl)-6,7-dihydro-5H-imidazo[2,1-c][1,2,4]triazol-3-yl)thio)acetamide	分子量：401.5 密度：N/A 沸点：N/A 熔点：N/A	921581-53-5	C₂₀H₂₇N₅O₂S
2-((7-(4-ethoxyphenyl)-6,7-dihydro-5H-imidazo[2,1-c][1,2,4]triazol-3-yl)thio)-N-mesitylacetamide	2-((7-(4-ethoxyphenyl)-6,7-dihydro-5H-imidazo[2,1-c][1,2,4]triazol-3-yl)thio)-N-mesitylacetamide	分子量：437.6 密度：N/A 沸点：N/A 熔点：N/A	921538-13-8	C₂₃H₂₇N₅O₂S
S-(2-Methylpropyl) methanesulfonothioate	S-(2-Methylpropyl) methanesulfonothioate	分子量：168.3 密度：N/A 沸点：N/A 熔点：N/A	52017-47-7	C₅H₁₂O₂S₂
N-(4-acetamidophenyl)-2-((7-(4-ethoxyphenyl)-6,7-dihydro-5H-imidazo[2,1-c][1,2,4]triazol-3-yl)thio)acetamide	N-(4-acetamidophenyl)-2-((7-(4-ethoxyphenyl)-6,7-dihydro-5H-imidazo[2,1-c][1,2,4]triazol-3-yl)thio)acetamide	分子量：452.5 密度：N/A 沸点：N/A 熔点：N/A	921789-76-6	C₂₂H₂₄N₆O₃S
2-{5-amino-4-[3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl]-3-(methylsulfanyl)-1H-pyrazol-1-yl}-N-(4-ethoxyphenyl)acetamide	2-{5-amino-4-[3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl]-3-(methylsulfanyl)-1H-pyrazol-1-yl}-N-(4-ethoxyphenyl)acetamide	分子量：480.5 密度：N/A 沸点：N/A 熔点：N/A	1171404-94-6	C₂₃H₂₄N₆O₄S
(3R)-3-methyl-2-azaspiro[4.5]decane	(3R)-3-methyl-2-azaspiro[4.5]decane	分子量：153.26 密度：N/A 沸点：N/A 熔点：N/A	929012-37-3	C₁₀H₁₉N
3,3,5-Trimethylpiperidine	3,3,5-Trimethylpiperidine	分子量：127.23 密度：N/A 沸点：N/A 熔点：N/A	37832-46-5	C₈H₁₇N
3-(2,5-Dimethoxyphenyl)-6-((2-fluorobenzyl)thio)pyridazine	3-(2,5-Dimethoxyphenyl)-6-((2-fluorobenzyl)thio)pyridazine	分子量：356.4 密度：N/A 沸点：N/A 熔点：N/A	922926-29-2	C₁₉H₁₇FN₂O₂S
1-(Indolin-1-yl)-2-((6-(2,4,5-trimethylphenyl)pyridazin-3-yl)thio)ethanone	1-(Indolin-1-yl)-2-((6-(2,4,5-trimethylphenyl)pyridazin-3-yl)thio)ethanone	分子量：389.5 密度：N/A 沸点：N/A 熔点：N/A	922950-96-7	C₂₃H₂₃N₃OS
2-Chloro-1-ethenyl-4-methylbenzene	2-Chloro-1-ethenyl-4-methylbenzene	分子量：152.62 密度：N/A 沸点：N/A 熔点：N/A	24942-54-9	C₉H₉Cl
1,3-Dihydro-3-oxo-N-phenyl-1-isobenzofurancarboxamide	1,3-Dihydro-3-oxo-N-phenyl-1-isobenzofurancarboxamide	分子量：253.25 密度：N/A 沸点：N/A 熔点：N/A	165074-18-0	C₁₅H₁₁NO₃
5-[(4-Acetylpiperazin-1-yl)sulfonyl]thiophene-3-carboxylic acid	5-[(4-Acetylpiperazin-1-yl)sulfonyl]thiophene-3-carboxylic acid	分子量：318.4 密度：N/A 沸点：N/A 熔点：N/A	1036508-26-5	C₁₁H₁₄N₂O₅S₂
2-(3-Phenyl-1H-pyrazol-1-yl)pyridine	2-(3-Phenyl-1H-pyrazol-1-yl)pyridine	分子量：221.26 密度：N/A 沸点：N/A 熔点：N/A	1357469-80-7	C₁₄H₁₁N₃
(2Z)-2-({[4-(4-bromophenyl)-1,3-thiazol-2-yl]amino}methylidene)-4,4-dimethyl-3-oxopentanenitrile	(2Z)-2-({[4-(4-bromophenyl)-1,3-thiazol-2-yl]amino}methylidene)-4,4-dimethyl-3-oxopentanenitrile	分子量：390.3 密度：N/A 沸点：N/A 熔点：N/A	1020252-68-9	C₁₇H₁₆BrN₃OS
1-Chloro-7-fluoronaphthalene	1-Chloro-7-fluoronaphthalene	分子量：180.60 密度：N/A 沸点：N/A 熔点：N/A	59079-73-1	C₁₀H₆ClF
1-Chloro-5-methoxy-4-methyl-2-nitrobenzene	1-Chloro-5-methoxy-4-methyl-2-nitrobenzene	分子量：201.61 密度：N/A 沸点：N/A 熔点：N/A	97655-37-3	C₈H₈ClNO₃
(3R,6R)-3-[(2S)-butan-2-yl]-6-methylpiperazine-2,5-dione	(3R,6R)-3-[(2S)-butan-2-yl]-6-methylpiperazine-2,5-dione	分子量：184.24 密度：N/A 沸点：N/A 熔点：N/A	2305185-18-4	C₉H₁₆N₂O₂
(3S,6R)-3-[(2S)-butan-2-yl]-6-methylpiperazine-2,5-dione	(3S,6R)-3-[(2S)-butan-2-yl]-6-methylpiperazine-2,5-dione	分子量：184.24 密度：N/A 沸点：N/A 熔点：N/A	35590-70-6	C₉H₁₆N₂O₂
2-(2-((4-Bromobenzyl)thio)thiazol-4-yl)acetic acid	2-(2-((4-Bromobenzyl)thio)thiazol-4-yl)acetic acid	分子量：344.3 密度：N/A 沸点：N/A 熔点：N/A	1050013-77-8	C₁₂H₁₀BrNO₂S₂
2-(2-((2-((4-Chlorophenyl)amino)-2-oxoethyl)thio)thiazol-4-yl)acetic acid	2-(2-((2-((4-Chlorophenyl)amino)-2-oxoethyl)thio)thiazol-4-yl)acetic acid	分子量：342.8 密度：N/A 沸点：N/A 熔点：N/A	1050151-40-0	C₁₃H₁₁ClN₂O₃S₂