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-(2-Hydroxy-ethyl)-4-phenyl-chroman-2-ol	6-(2-Hydroxy-ethyl)-4-phenyl-chroman-2-ol	分子量：270.32 密度：N/A 沸点：N/A 熔点：N/A	959624-26-1	C₁₇H₁₈O₃
4-(4-(Trifluoromethyl)phenyl)benzo[d]thiazole	4-(4-(Trifluoromethyl)phenyl)benzo[d]thiazole	分子量：279.28 密度：N/A 沸点：N/A 熔点：N/A	943443-10-5	C₁₄H₈F₃NS
4-[4-(trifluoromethyl)phenyl]-1H-pyrrole-3-carbonitrile	4-[4-(trifluoromethyl)phenyl]-1H-pyrrole-3-carbonitrile	分子量：236.19 密度：N/A 沸点：N/A 熔点：N/A	934291-25-5	C₁₂H₇F₃N₂
Methyl 4-(4-formyl-3-phenyl-1h-pyrazol-1-yl)benzoate	Methyl 4-(4-formyl-3-phenyl-1h-pyrazol-1-yl)benzoate	分子量：306.3 密度：N/A 沸点：N/A 熔点：N/A	934290-21-8	C₁₈H₁₄N₂O₃
Methyl 4-(4-cyano-3-phenyl-1h-pyrazol-1-yl)benzoate	Methyl 4-(4-cyano-3-phenyl-1h-pyrazol-1-yl)benzoate	分子量：303.3 密度：N/A 沸点：N/A 熔点：N/A	934290-22-9	C₁₈H₁₃N₃O₂
4-(3-(3,4-dimethylphenyl)-1,2,4-oxadiazol-5-yl)-2-(p-tolyl)phthalazin-1(2H)-one	4-(3-(3,4-dimethylphenyl)-1,2,4-oxadiazol-5-yl)-2-(p-tolyl)phthalazin-1(2H)-one	分子量：408.5 密度：N/A 沸点：N/A 熔点：N/A	1358791-53-3	C₂₅H₂₀N₄O₂
Methyl 4-(5-methyl-3-phenyl-1h-pyrazol-1-yl)benzoate	Methyl 4-(5-methyl-3-phenyl-1h-pyrazol-1-yl)benzoate	分子量：292.3 密度：N/A 沸点：N/A 熔点：N/A	934290-28-5	C₁₈H₁₆N₂O₂
1-{[4-(prop-2-en-1-yl)phenyl]methyl}-1H-imidazole	1-{[4-(prop-2-en-1-yl)phenyl]methyl}-1H-imidazole	分子量：198.26 密度：N/A 沸点：N/A 熔点：N/A	2137560-68-8	C₁₃H₁₄N₂
1-[2-oxo-2-(4-phenyl-3,6-dihydropyridin-1(2H)-yl)ethyl]-6-(pyrrolidin-1-ylsulfonyl)-3,4-dihydroquinolin-2(1H)-one	1-[2-oxo-2-(4-phenyl-3,6-dihydropyridin-1(2H)-yl)ethyl]-6-(pyrrolidin-1-ylsulfonyl)-3,4-dihydroquinolin-2(1H)-one	分子量：479.6 密度：N/A 沸点：N/A 熔点：N/A	1185132-03-9	C₂₆H₂₉N₃O₄S
2-[2-oxo-6-(pyrrolidin-1-ylsulfonyl)-3,4-dihydroquinolin-1(2H)-yl]-N-(2-thienylmethyl)acetamide	2-[2-oxo-6-(pyrrolidin-1-ylsulfonyl)-3,4-dihydroquinolin-1(2H)-yl]-N-(2-thienylmethyl)acetamide	分子量：433.5 密度：N/A 沸点：N/A 熔点：N/A	1185179-23-0	C₂₀H₂₃N₃O₄S₂
5-(Tert-butyl)-2-ethoxybenzoic acid	5-(Tert-butyl)-2-ethoxybenzoic acid	分子量：222.28 密度：N/A 沸点：N/A 熔点：N/A	163419-09-8	C₁₃H₁₈O₃
Ethyl 6-[[(2-fluorophenyl)thio]methyl]-1,2,3,4-tetrahydro-4-methyl-2-oxo-5-pyrimidinecarboxylate	Ethyl 6-[[(2-fluorophenyl)thio]methyl]-1,2,3,4-tetrahydro-4-methyl-2-oxo-5-pyrimidinecarboxylate	分子量：324.4 密度：N/A 沸点：N/A 熔点：N/A	1008660-95-4	C₁₅H₁₇FN₂O₃S
1-(4-Bromophenylamino)-3-m-tolylpropan-2-ol	1-(4-Bromophenylamino)-3-m-tolylpropan-2-ol	分子量：320.22 密度：N/A 沸点：N/A 熔点：N/A	1228798-83-1	C₁₆H₁₈BrNO
4-(2,2-dimethylpropyl)-N,N-dimethyl-1H-imidazole-1-sulfonamide	4-(2,2-dimethylpropyl)-N,N-dimethyl-1H-imidazole-1-sulfonamide	分子量：245.34 密度：N/A 沸点：N/A 熔点：N/A	1021732-05-7	C₁₀H₁₉N₃O₂S
N-benzyl-1-(4-nitrobenzyl)-1H-imidazole-4-carboxamide	N-benzyl-1-(4-nitrobenzyl)-1H-imidazole-4-carboxamide	分子量：336.3 密度：N/A 沸点：N/A 熔点：N/A	1351771-70-4	C₁₈H₁₆N₄O₃
(Z)-2-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)prop-2-enenitrile	(Z)-2-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)prop-2-enenitrile	分子量：193.05 密度：N/A 沸点：N/A 熔点：N/A	219489-15-3	C₁₀H₁₆BNO₂
(4R)-3-[3-(2-Methyl-1H-benzimidazol-6-yl)-1-oxopropyl]-4-(phenylmethyl)-2-oxazolidinone	(4R)-3-[3-(2-Methyl-1H-benzimidazol-6-yl)-1-oxopropyl]-4-(phenylmethyl)-2-oxazolidinone	分子量：363.4 密度：N/A 沸点：N/A 熔点：N/A	1245649-04-0	C₂₁H₂₁N₃O₃
1-(2-Hydroxypropan-2-yl)-3a-methyl-6,10-bis(methylene)tetradecahydrocyclopenta[11]annulene-5,9-diol	1-(2-Hydroxypropan-2-yl)-3a-methyl-6,10-bis(methylene)tetradecahydrocyclopenta[11]annulene-5,9-diol	分子量：322.5 密度：N/A 沸点：N/A 熔点：N/A	1246094-62-1	C₂₀H₃₄O₃
3-(6-((tert-Butoxycarbonyl)amino)pyridin-3-yl)acrylic acid	3-(6-((tert-Butoxycarbonyl)amino)pyridin-3-yl)acrylic acid	分子量：264.28 密度：N/A 沸点：N/A 熔点：N/A	1245652-89-4	C₁₃H₁₆N₂O₄
CID 51136430	CID 51136430	分子量：478.4 密度：N/A 沸点：N/A 熔点：N/A	115473-28-4	C₂₂H₂₂O₁₂
methyl (2E)-3-(3,4-diaminophenyl)acrylate	methyl (2E)-3-(3,4-diaminophenyl)acrylate	分子量：192.21 密度：N/A 沸点：N/A 熔点：N/A	494854-43-2	C₁₀H₁₂N₂O₂
(2,3-Dimethyloxirane-2,3-diyl)bis((4-hydroxy-3-methoxyphenyl)methanone)	(2,3-Dimethyloxirane-2,3-diyl)bis((4-hydroxy-3-methoxyphenyl)methanone)	分子量：372.4 密度：N/A 沸点：N/A 熔点：N/A	1235657-94-9	C₂₀H₂₀O₇
1,1-Dimethylethyl N-[6-[[(4R)-2-oxo-4-(phenylmethyl)-3-oxazolidinyl]carbonyl]-2-naphthalenyl]carbamate	1,1-Dimethylethyl N-[6-[[(4R)-2-oxo-4-(phenylmethyl)-3-oxazolidinyl]carbonyl]-2-naphthalenyl]carbamate	分子量：446.5 密度：N/A 沸点：N/A 熔点：N/A	1245648-34-3	C₂₆H₂₆N₂O₅
2-(5-chloro-2-iminopyridin-1(2H)-yl)acetic acid	2-(5-chloro-2-iminopyridin-1(2H)-yl)acetic acid	分子量：186.59 密度：N/A 沸点：N/A 熔点：N/A	112581-63-2	C₇H₇ClN₂O₂
1-[4-[2-(1H-Pyrrolo[2,3-b]pyridin-2-yl)ethynyl]phenyl]cyclobutanol	1-[4-[2-(1H-Pyrrolo[2,3-b]pyridin-2-yl)ethynyl]phenyl]cyclobutanol	分子量：288.3 密度：N/A 沸点：N/A 熔点：N/A	1245645-64-0	C₁₉H₁₆N₂O
4-[2-[1-[(4-Methylphenyl)sulfonyl]-1H-pyrrolo[2,3-b]pyridin-2-yl]ethynyl]benzenemethanol	4-[2-[1-[(4-Methylphenyl)sulfonyl]-1H-pyrrolo[2,3-b]pyridin-2-yl]ethynyl]benzenemethanol	分子量：402.5 密度：N/A 沸点：N/A 熔点：N/A	1245649-30-2	C₂₃H₁₈N₂O₃S
1-[(2-chloropyridin-3-yl)sulfonyl]-N-[2-(1-methylpiperidin-4-yl)ethyl]piperidine-4-carboxamide	1-[(2-chloropyridin-3-yl)sulfonyl]-N-[2-(1-methylpiperidin-4-yl)ethyl]piperidine-4-carboxamide	分子量：429.0 密度：N/A 沸点：N/A 熔点：N/A	1252309-33-3	C₁₉H₂₉ClN₄O₃S
5-bromo-2-chloro-N-[(4-phenyl-4H-1,2,4-triazol-3-yl)methyl]pyridine-3-carboxamide	5-bromo-2-chloro-N-[(4-phenyl-4H-1,2,4-triazol-3-yl)methyl]pyridine-3-carboxamide	分子量：392.64 密度：N/A 沸点：N/A 熔点：N/A	1252481-90-5	C₁₅H₁₁BrClN₅O
N-(1-cyanocyclopentyl)-2-{7-oxo-3-phenyl-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-6-yl}acetamide	N-(1-cyanocyclopentyl)-2-{7-oxo-3-phenyl-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-6-yl}acetamide	分子量：363.4 密度：N/A 沸点：N/A 熔点：N/A	1252141-93-7	C₁₈H₁₇N₇O₂
N-(1-cyanocyclohexyl)-2-[4-(3-cyanophenyl)-4-methyl-2,5-dioxoimidazolidin-1-yl]acetamide	N-(1-cyanocyclohexyl)-2-[4-(3-cyanophenyl)-4-methyl-2,5-dioxoimidazolidin-1-yl]acetamide	分子量：379.4 密度：N/A 沸点：N/A 熔点：N/A	1252485-20-3	C₂₀H₂₁N₅O₃
1-[(E)-2-phenylethenyl]sulfonyl-N-[1-[3-(trifluoromethyl)phenyl]butyl]piperidine-4-carboxamide	1-[(E)-2-phenylethenyl]sulfonyl-N-[1-[3-(trifluoromethyl)phenyl]butyl]piperidine-4-carboxamide	分子量：494.6 密度：N/A 沸点：N/A 熔点：N/A	1252568-95-8	C₂₅H₂₉F₃N₂O₃S
5,6-Difluoro-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)quinoxaline	5,6-Difluoro-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)quinoxaline	分子量：292.09 密度：N/A 沸点：N/A 熔点：N/A	1210048-14-8	C₁₄H₁₅BF₂N₂O₂
2-[4-[2-(4-Methoxyphenyl)ethyl]piperidin-1-yl]sulfonylbenzaldehyde	2-[4-[2-(4-Methoxyphenyl)ethyl]piperidin-1-yl]sulfonylbenzaldehyde	分子量：387.5 密度：N/A 沸点：N/A 熔点：N/A	1252498-90-0	C₂₁H₂₅NO₄S
2-[4-(2-formylphenyl)sulfonylpiperazin-1-yl]-N-(5-methyl-1,2-oxazol-3-yl)acetamide	2-[4-(2-formylphenyl)sulfonylpiperazin-1-yl]-N-(5-methyl-1,2-oxazol-3-yl)acetamide	分子量：392.4 密度：N/A 沸点：N/A 熔点：N/A	1252457-31-0	C₁₇H₂₀N₄O₅S
(Z)-2-cyano-3-(2,5-dichloro-3-methylimidazol-4-yl)-N-[3-(trifluoromethyl)phenyl]prop-2-enamide	(Z)-2-cyano-3-(2,5-dichloro-3-methylimidazol-4-yl)-N-[3-(trifluoromethyl)phenyl]prop-2-enamide	分子量：389.2 密度：N/A 沸点：N/A 熔点：N/A	1252569-48-4	C₁₅H₉Cl₂F₃N₄O
(Z)-2-cyano-N-(2,5-dichlorophenyl)-3-(1-ethyl-3,5-dimethylpyrazol-4-yl)prop-2-enamide	(Z)-2-cyano-N-(2,5-dichlorophenyl)-3-(1-ethyl-3,5-dimethylpyrazol-4-yl)prop-2-enamide	分子量：363.2 密度：N/A 沸点：N/A 熔点：N/A	1005916-34-6	C₁₇H₁₆Cl₂N₄O
(Z)-2-cyano-N-(4-ethoxyphenyl)-3-(4-phenyl-1,3-thiazol-2-yl)prop-2-enamide	(Z)-2-cyano-N-(4-ethoxyphenyl)-3-(4-phenyl-1,3-thiazol-2-yl)prop-2-enamide	分子量：375.4 密度：N/A 沸点：N/A 熔点：N/A	1252562-19-8	C₂₁H₁₇N₃O₂S
ethyl 2-[[(Z)-2-cyano-3-(2,5-dichloro-3-methylimidazol-4-yl)prop-2-enoyl]amino]-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate	ethyl 2-[[(Z)-2-cyano-3-(2,5-dichloro-3-methylimidazol-4-yl)prop-2-enoyl]amino]-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate	分子量：453.3 密度：N/A 沸点：N/A 熔点：N/A	1252564-56-9	C₁₉H₁₈Cl₂N₄O₃S
(E)-2-(4-chlorophenyl)-N-[3-(1,1-dioxo-1,4-thiazinan-4-yl)-4-fluorophenyl]ethenesulfonamide	(E)-2-(4-chlorophenyl)-N-[3-(1,1-dioxo-1,4-thiazinan-4-yl)-4-fluorophenyl]ethenesulfonamide	分子量：444.9 密度：N/A 沸点：N/A 熔点：N/A	1252569-07-5	C₁₈H₁₈ClFN₂O₄S₂
Ethyl (e,e,e,e)-geranylfarnesoate	Ethyl (e,e,e,e)-geranylfarnesoate	分子量：400.6 密度：N/A 沸点：N/A 熔点：N/A	1338789-42-6	C₂₇H₄₄O₂
methyl 3-[4-[(Z)-2-cyano-3-(naphthalen-1-ylamino)-3-oxoprop-1-enyl]-3,5-dimethylpyrazol-1-yl]propanoate	methyl 3-[4-[(Z)-2-cyano-3-(naphthalen-1-ylamino)-3-oxoprop-1-enyl]-3,5-dimethylpyrazol-1-yl]propanoate	分子量：402.4 密度：N/A 沸点：N/A 熔点：N/A	1259234-94-0	C₂₃H₂₂N₄O₃
3-[4-[(Z)-2-cyano-3-[(3-ethoxycarbonyl-4,5,6,7-tetrahydro-1-benzothiophen-2-yl)amino]-3-oxoprop-1-enyl]-3,5-dimethylpyrazol-1-yl]propanoic acid	3-[4-[(Z)-2-cyano-3-[(3-ethoxycarbonyl-4,5,6,7-tetrahydro-1-benzothiophen-2-yl)amino]-3-oxoprop-1-enyl]-3,5-dimethylpyrazol-1-yl]propanoic acid	分子量：470.5 密度：N/A 沸点：N/A 熔点：N/A	1259231-27-0	C₂₃H₂₆N₄O₅S
3-[4-[(Z)-2-cyano-3-oxo-3-[2-(trifluoromethyl)anilino]prop-1-enyl]-3,5-dimethylpyrazol-1-yl]propanoic acid	3-[4-[(Z)-2-cyano-3-oxo-3-[2-(trifluoromethyl)anilino]prop-1-enyl]-3,5-dimethylpyrazol-1-yl]propanoic acid	分子量：406.4 密度：N/A 沸点：N/A 熔点：N/A	1259236-66-2	C₁₉H₁₇F₃N₄O₃
[Cyclopentyl(phenyl)methyl]hydrazine	[Cyclopentyl(phenyl)methyl]hydrazine	分子量：190.28 密度：N/A 沸点：N/A 熔点：N/A	1314932-56-3	C₁₂H₁₈N₂
(3-Methylphenyl)methyl 3-(4-formyl-3,5-dimethylpyrazol-1-yl)propanoate	(3-Methylphenyl)methyl 3-(4-formyl-3,5-dimethylpyrazol-1-yl)propanoate	分子量：300.35 密度：N/A 沸点：N/A 熔点：N/A	1252434-31-3	C₁₇H₂₀N₂O₃
(3-Fluorophenyl)methyl 3-(4-formyl-3,5-dimethylpyrazol-1-yl)propanoate	(3-Fluorophenyl)methyl 3-(4-formyl-3,5-dimethylpyrazol-1-yl)propanoate	分子量：304.32 密度：N/A 沸点：N/A 熔点：N/A	1252496-23-3	C₁₆H₁₇FN₂O₃
2-(4-Cyanophenoxy)ethyl 3-(4-formyl-3,5-dimethylpyrazol-1-yl)propanoate	2-(4-Cyanophenoxy)ethyl 3-(4-formyl-3,5-dimethylpyrazol-1-yl)propanoate	分子量：341.4 密度：N/A 沸点：N/A 熔点：N/A	1252341-01-7	C₁₈H₁₉N₃O₄
6-Fluoro-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)quinoxaline	6-Fluoro-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)quinoxaline	分子量：274.10 密度：N/A 沸点：N/A 熔点：N/A	1210047-56-5	C₁₄H₁₆BFN₂O₂
6-Chloro-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)quinoxaline	6-Chloro-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)quinoxaline	分子量：290.55 密度：N/A 沸点：N/A 熔点：N/A	1210047-59-8	C₁₄H₁₆BClN₂O₂
6-Methyl-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)quinoxaline	6-Methyl-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)quinoxaline	分子量：270.14 密度：N/A 沸点：N/A 熔点：N/A	1210047-61-2	C₁₅H₁₉BN₂O₂