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-(2-Methoxy-4,6-dimethyl-3-pyridinyl)ethanone	1-(2-Methoxy-4,6-dimethyl-3-pyridinyl)ethanone	分子量：179.22 密度：N/A 沸点：N/A 熔点：N/A	151670-24-5	C₁₀H₁₃NO₂
Benzenesulfonamide, 4-methoxy-N-[4-methyl-5-[(4-methyl-1-piperidinyl)carbonyl]-2-thiazolyl]-	Benzenesulfonamide, 4-methoxy-N-[4-methyl-5-[(4-methyl-1-piperidinyl)carbonyl]-2-thiazolyl]-	分子量：409.5 密度：N/A 沸点：N/A 熔点：N/A	955629-23-9	C₁₈H₂₃N₃O₄S₂
Benzenesulfonamide, 4-methoxy-N-[4-methyl-5-[[4-(phenylmethyl)-1-piperidinyl]carbonyl]-2-thiazolyl]-	Benzenesulfonamide, 4-methoxy-N-[4-methyl-5-[[4-(phenylmethyl)-1-piperidinyl]carbonyl]-2-thiazolyl]-	分子量：485.6 密度：N/A 沸点：N/A 熔点：N/A	955629-27-3	C₂₄H₂₇N₃O₄S₂
Benzenesulfonamide, 4-methoxy-N-[4-methyl-5-[[4-(phenylmethyl)-1-piperazinyl]carbonyl]-2-thiazolyl]-	Benzenesulfonamide, 4-methoxy-N-[4-methyl-5-[[4-(phenylmethyl)-1-piperazinyl]carbonyl]-2-thiazolyl]-	分子量：486.6 密度：N/A 沸点：N/A 熔点：N/A	955629-31-9	C₂₃H₂₆N₄O₄S₂
4-Chloro-1-(trimethylsilyl)-1-hexyn-3-one	4-Chloro-1-(trimethylsilyl)-1-hexyn-3-one	分子量：202.75 密度：N/A 沸点：N/A 熔点：N/A	914358-92-2	C₉H₁₅ClOSi
5-Thiazolecarboxamide, N-ethyl-2-[[(4-methoxyphenyl)sulfonyl]amino]-4-methyl-	5-Thiazolecarboxamide, N-ethyl-2-[[(4-methoxyphenyl)sulfonyl]amino]-4-methyl-	分子量：355.4 密度：N/A 沸点：N/A 熔点：N/A	955629-39-7	C₁₄H₁₇N₃O₄S₂
N-(2-(cyclohex-1-en-1-yl)ethyl)-2-(4-methoxyphenylsulfonamido)-4-methylthiazole-5-carboxamide	N-(2-(cyclohex-1-en-1-yl)ethyl)-2-(4-methoxyphenylsulfonamido)-4-methylthiazole-5-carboxamide	分子量：435.6 密度：N/A 沸点：N/A 熔点：N/A	941879-50-1	C₂₀H₂₅N₃O₄S₂
5-Thiazolecarboxamide, N-[(2-chlorophenyl)methyl]-2-[[(4-methoxyphenyl)sulfonyl]amino]-4-methyl-	5-Thiazolecarboxamide, N-[(2-chlorophenyl)methyl]-2-[[(4-methoxyphenyl)sulfonyl]amino]-4-methyl-	分子量：451.9 密度：N/A 沸点：N/A 熔点：N/A	955629-53-5	C₁₉H₁₈ClN₃O₄S₂
2-(4-methoxyphenylsulfonamido)-4-methyl-N-(3-phenylpropyl)thiazole-5-carboxamide	2-(4-methoxyphenylsulfonamido)-4-methyl-N-(3-phenylpropyl)thiazole-5-carboxamide	分子量：445.6 密度：N/A 沸点：N/A 熔点：N/A	941879-52-3	C₂₁H₂₃N₃O₄S₂
5-Thiazolecarboxamide, N-(2-methoxyphenyl)-2-[[(4-methoxyphenyl)sulfonyl]amino]-4-methyl-	5-Thiazolecarboxamide, N-(2-methoxyphenyl)-2-[[(4-methoxyphenyl)sulfonyl]amino]-4-methyl-	分子量：433.5 密度：N/A 沸点：N/A 熔点：N/A	955675-17-9	C₁₉H₁₉N₃O₅S₂
(5Z)-3-ethyl-5-[(2-methyl-2H-chromen-3-yl)methylene]-2-thioxo-thiazolidin-4-one	(5Z)-3-ethyl-5-[(2-methyl-2H-chromen-3-yl)methylene]-2-thioxo-thiazolidin-4-one	分子量：317.4 密度：N/A 沸点：N/A 熔点：N/A	370582-46-0	C₁₆H₁₅NO₂S₂
5-Thiazolecarboxamide, 2-[[(4-methoxyphenyl)sulfonyl]amino]-4-methyl-N-(6-methyl-2-benzothiazolyl)-	5-Thiazolecarboxamide, 2-[[(4-methoxyphenyl)sulfonyl]amino]-4-methyl-N-(6-methyl-2-benzothiazolyl)-	分子量：474.6 密度：N/A 沸点：N/A 熔点：N/A	955675-94-2	C₂₀H₁₈N₄O₄S₃
5-Thiazolecarboxamide, N-[2-(3-methoxyphenyl)ethyl]-2-[[(4-methoxyphenyl)sulfonyl]amino]-4-methyl-	5-Thiazolecarboxamide, N-[2-(3-methoxyphenyl)ethyl]-2-[[(4-methoxyphenyl)sulfonyl]amino]-4-methyl-	分子量：461.6 密度：N/A 沸点：N/A 熔点：N/A	955630-28-1	C₂₁H₂₃N₃O₅S₂
2'-Fluoro-4-hydroxybiphenyl-3-carboxylic acid	2'-Fluoro-4-hydroxybiphenyl-3-carboxylic acid	分子量：232.21 密度：N/A 沸点：N/A 熔点：N/A	22494-44-6	C₁₃H₉FO₃
5-Thiazolecarboxamide, N-[5-(acetylamino)-2-methoxyphenyl]-2-[[(4-methoxyphenyl)sulfonyl]amino]-4-methyl-	5-Thiazolecarboxamide, N-[5-(acetylamino)-2-methoxyphenyl]-2-[[(4-methoxyphenyl)sulfonyl]amino]-4-methyl-	分子量：490.6 密度：N/A 沸点：N/A 熔点：N/A	955676-71-8	C₂₁H₂₂N₄O₆S₂
Benzenesulfonamide, N-[5-[(3,5-dimethyl-1-piperidinyl)carbonyl]-4-methyl-2-thiazolyl]-2,4-dimethyl-	Benzenesulfonamide, N-[5-[(3,5-dimethyl-1-piperidinyl)carbonyl]-4-methyl-2-thiazolyl]-2,4-dimethyl-	分子量：421.6 密度：N/A 沸点：N/A 熔点：N/A	955630-83-8	C₂₀H₂₇N₃O₃S₂
Benzenesulfonamide, 2,4-dimethyl-N-[4-methyl-5-[[4-(phenylmethyl)-1-piperazinyl]carbonyl]-2-thiazolyl]-	Benzenesulfonamide, 2,4-dimethyl-N-[4-methyl-5-[[4-(phenylmethyl)-1-piperazinyl]carbonyl]-2-thiazolyl]-	分子量：484.6 密度：N/A 沸点：N/A 熔点：N/A	955630-87-2	C₂₄H₂₈N₄O₃S₂
5-Thiazolecarboxamide, N-cyclopentyl-2-[[(2,4-dimethylphenyl)sulfonyl]amino]-4-methyl-	5-Thiazolecarboxamide, N-cyclopentyl-2-[[(2,4-dimethylphenyl)sulfonyl]amino]-4-methyl-	分子量：393.5 密度：N/A 沸点：N/A 熔点：N/A	955677-55-1	C₁₈H₂₃N₃O₃S₂
5-Thiazolecarboxamide, 2-[[(2,4-dimethylphenyl)sulfonyl]amino]-4-methyl-N-(2-thienylmethyl)-	5-Thiazolecarboxamide, 2-[[(2,4-dimethylphenyl)sulfonyl]amino]-4-methyl-N-(2-thienylmethyl)-	分子量：421.6 密度：N/A 沸点：N/A 熔点：N/A	955631-37-5	C₁₈H₁₉N₃O₃S₃
2-(4-cyanophenoxy)-N-(2-oxo-1,3-dihydrobenzimidazol-5-yl)acetamide	2-(4-cyanophenoxy)-N-(2-oxo-1,3-dihydrobenzimidazol-5-yl)acetamide	分子量：308.29 密度：N/A 沸点：N/A 熔点：N/A	1031627-57-2	C₁₆H₁₂N₄O₃
5-Thiazolecarboxamide, N-(4-bromophenyl)-2-[[(2,4-dimethylphenyl)sulfonyl]amino]-4-methyl-	5-Thiazolecarboxamide, N-(4-bromophenyl)-2-[[(2,4-dimethylphenyl)sulfonyl]amino]-4-methyl-	分子量：480.4 密度：N/A 沸点：N/A 熔点：N/A	955678-61-2	C₁₉H₁₈BrN₃O₃S₂
5-Thiazolecarboxamide, 2-[[(2,4-dimethylphenyl)sulfonyl]amino]-N-(2-ethoxyphenyl)-4-methyl-	5-Thiazolecarboxamide, 2-[[(2,4-dimethylphenyl)sulfonyl]amino]-N-(2-ethoxyphenyl)-4-methyl-	分子量：445.6 密度：N/A 沸点：N/A 熔点：N/A	955678-86-1	C₂₁H₂₃N₃O₄S₂
5-Thiazolecarboxamide, N-(2,3-dimethylphenyl)-2-[[(2,4-dimethylphenyl)sulfonyl]amino]-4-methyl-	5-Thiazolecarboxamide, N-(2,3-dimethylphenyl)-2-[[(2,4-dimethylphenyl)sulfonyl]amino]-4-methyl-	分子量：429.6 密度：N/A 沸点：N/A 熔点：N/A	955679-53-5	C₂₁H₂₃N₃O₃S₂
5-Thiazolecarboxamide, N-(3-chloro-2-methylphenyl)-2-[[(2,4-dimethylphenyl)sulfonyl]amino]-4-methyl-	5-Thiazolecarboxamide, N-(3-chloro-2-methylphenyl)-2-[[(2,4-dimethylphenyl)sulfonyl]amino]-4-methyl-	分子量：450.0 密度：N/A 沸点：N/A 熔点：N/A	955651-90-8	C₂₀H₂₀ClN₃O₃S₂
5-Thiazolecarboxamide, N-(5-chloro-2-methylphenyl)-2-[[(2,4-dimethylphenyl)sulfonyl]amino]-4-methyl-	5-Thiazolecarboxamide, N-(5-chloro-2-methylphenyl)-2-[[(2,4-dimethylphenyl)sulfonyl]amino]-4-methyl-	分子量：450.0 密度：N/A 沸点：N/A 熔点：N/A	955680-12-3	C₂₀H₂₀ClN₃O₃S₂
5-Thiazolecarboxamide, 2-[[(2,4-dimethylphenyl)sulfonyl]amino]-N-(2-methoxy-5-methylphenyl)-4-methyl-	5-Thiazolecarboxamide, 2-[[(2,4-dimethylphenyl)sulfonyl]amino]-N-(2-methoxy-5-methylphenyl)-4-methyl-	分子量：445.6 密度：N/A 沸点：N/A 熔点：N/A	955725-30-1	C₂₁H₂₃N₃O₄S₂
5-Thiazolecarboxamide, 2-[[(2,4-dimethylphenyl)sulfonyl]amino]-4-methyl-N-(2,4,6-trimethylphenyl)-	5-Thiazolecarboxamide, 2-[[(2,4-dimethylphenyl)sulfonyl]amino]-4-methyl-N-(2,4,6-trimethylphenyl)-	分子量：443.6 密度：N/A 沸点：N/A 熔点：N/A	955680-23-6	C₂₂H₂₅N₃O₃S₂
N-[(1Z)-3-{[2-(morpholin-4-yl)ethyl]amino}-3-oxo-1-{5-[3-(trifluoromethyl)phenyl]furan-2-yl}prop-1-en-2-yl]benzamide	N-[(1Z)-3-{[2-(morpholin-4-yl)ethyl]amino}-3-oxo-1-{5-[3-(trifluoromethyl)phenyl]furan-2-yl}prop-1-en-2-yl]benzamide	分子量：513.5 密度：N/A 沸点：N/A 熔点：N/A	383902-33-8	C₂₇H₂₆F₃N₃O₄
5-Thiazolecarboxamide, 2-[[(2,4-dimethylphenyl)sulfonyl]amino]-4-methyl-N-[1-(phenylmethyl)-4-piperidinyl]-	5-Thiazolecarboxamide, 2-[[(2,4-dimethylphenyl)sulfonyl]amino]-4-methyl-N-[1-(phenylmethyl)-4-piperidinyl]-	分子量：498.7 密度：N/A 沸点：N/A 熔点：N/A	955652-49-0	C₂₅H₃₀N₄O₃S₂
methyl (3R)-3-(4-chlorophenyl)-3-hydroxypropanoate	methyl (3R)-3-(4-chlorophenyl)-3-hydroxypropanoate	分子量：214.64 密度：N/A 沸点：N/A 熔点：N/A	135505-19-0	C₁₀H₁₁ClO₃
2-benzamido-N-ethyl-4,5,6,7-tetrahydrobenzo[d]thiazole-4-carboxamide	2-benzamido-N-ethyl-4,5,6,7-tetrahydrobenzo[d]thiazole-4-carboxamide	分子量：329.4 密度：N/A 沸点：N/A 熔点：N/A	955727-49-8	C₁₇H₁₉N₃O₂S
N-[(1Z)-1-[5-(2-chlorophenyl)furan-2-yl]-3-(4-methylpiperidin-1-yl)-3-oxoprop-1-en-2-yl]benzamide	N-[(1Z)-1-[5-(2-chlorophenyl)furan-2-yl]-3-(4-methylpiperidin-1-yl)-3-oxoprop-1-en-2-yl]benzamide	分子量：448.9 密度：N/A 沸点：N/A 熔点：N/A	312936-05-3	C₂₆H₂₅ClN₂O₃
N-[(1Z)-1-[5-(3,4-dichlorophenyl)furan-2-yl]-3-{[3-(1H-imidazol-1-yl)propyl]amino}-3-oxoprop-1-en-2-yl]benzamide	N-[(1Z)-1-[5-(3,4-dichlorophenyl)furan-2-yl]-3-{[3-(1H-imidazol-1-yl)propyl]amino}-3-oxoprop-1-en-2-yl]benzamide	分子量：509.4 密度：N/A 沸点：N/A 熔点：N/A	384799-07-9	C₂₆H₂₂Cl₂N₄O₃
2-benzamido-N-(3,4-dimethoxyphenyl)-4,5,6,7-tetrahydrobenzo[d]thiazole-4-carboxamide	2-benzamido-N-(3,4-dimethoxyphenyl)-4,5,6,7-tetrahydrobenzo[d]thiazole-4-carboxamide	分子量：437.5 密度：N/A 沸点：N/A 熔点：N/A	941879-62-5	C₂₃H₂₃N₃O₄S
2-benzamido-N-(3-methoxyphenethyl)-4,5,6,7-tetrahydrobenzo[d]thiazole-4-carboxamide	2-benzamido-N-(3-methoxyphenethyl)-4,5,6,7-tetrahydrobenzo[d]thiazole-4-carboxamide	分子量：435.5 密度：N/A 沸点：N/A 熔点：N/A	941925-83-3	C₂₄H₂₅N₃O₃S
Methyl 3-(benzylamino)-4-methylpentanoate	Methyl 3-(benzylamino)-4-methylpentanoate	分子量：235.32 密度：N/A 沸点：N/A 熔点：N/A	608127-92-0	C₁₄H₂₁NO₂
N-[(1Z)-1-[3-(4-chlorophenyl)-1-phenyl-1H-pyrazol-4-yl]-3-(4-methylpiperidin-1-yl)-3-oxoprop-1-en-2-yl]-4-methylbenzamide	N-[(1Z)-1-[3-(4-chlorophenyl)-1-phenyl-1H-pyrazol-4-yl]-3-(4-methylpiperidin-1-yl)-3-oxoprop-1-en-2-yl]-4-methylbenzamide	分子量：539.1 密度：N/A 沸点：N/A 熔点：N/A	384800-53-7	C₃₂H₃₁ClN₄O₂
propan-2-yl (2E)-7-methyl-5-(4-methylphenyl)-3-oxo-2-[4-(propan-2-yl)benzylidene]-2,3-dihydro-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate	propan-2-yl (2E)-7-methyl-5-(4-methylphenyl)-3-oxo-2-[4-(propan-2-yl)benzylidene]-2,3-dihydro-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate	分子量：474.6 密度：N/A 沸点：N/A 熔点：N/A	384801-32-5	C₂₈H₃₀N₂O₃S
N-[(1Z)-1-[3-(4-chlorophenyl)-1-phenyl-1H-pyrazol-4-yl]-3-oxo-3-(piperidin-1-yl)prop-1-en-2-yl]benzamide	N-[(1Z)-1-[3-(4-chlorophenyl)-1-phenyl-1H-pyrazol-4-yl]-3-oxo-3-(piperidin-1-yl)prop-1-en-2-yl]benzamide	分子量：511.0 密度：N/A 沸点：N/A 熔点：N/A	384372-90-1	C₃₀H₂₇ClN₄O₂
1-[5-hydroxy-3-methyl-5-(trifluoromethyl)-4H-pyrazol-1-yl]-2-(2-nitrophenoxy)propan-1-one	1-[5-hydroxy-3-methyl-5-(trifluoromethyl)-4H-pyrazol-1-yl]-2-(2-nitrophenoxy)propan-1-one	分子量：361.27 密度：N/A 沸点：N/A 熔点：N/A	832674-08-5	C₁₄H₁₄F₃N₃O₅
N-(1-cyano-1,2-dimethylpropyl)-2-{[4-(4-methylphenyl)-5-(pyrrolidin-1-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}propanamide	N-(1-cyano-1,2-dimethylpropyl)-2-{[4-(4-methylphenyl)-5-(pyrrolidin-1-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}propanamide	分子量：426.6 密度：N/A 沸点：N/A 熔点：N/A	949710-09-2	C₂₂H₃₀N₆OS
2-(4-chlorobenzamido)-N-(pyridin-3-ylmethyl)-4,5,6,7-tetrahydrobenzo[d]thiazole-4-carboxamide	2-(4-chlorobenzamido)-N-(pyridin-3-ylmethyl)-4,5,6,7-tetrahydrobenzo[d]thiazole-4-carboxamide	分子量：426.9 密度：N/A 沸点：N/A 熔点：N/A	941925-86-6	C₂₁H₁₉ClN₄O₂S
2-Bromo-8-(4,4-dimethyl-cyclohexyl)-[1,2,4]triazolo[1,5-a]pyridine	2-Bromo-8-(4,4-dimethyl-cyclohexyl)-[1,2,4]triazolo[1,5-a]pyridine	分子量：236.29 密度：N/A 沸点：N/A 熔点：N/A	1397287-51-2	C₁₁H₁₂N₂O₂S
(2Z)-2-(1,3-benzoxazol-2-yl)-3-(4-iodophenyl)-1-(4-methylphenyl)prop-2-en-1-one	(2Z)-2-(1,3-benzoxazol-2-yl)-3-(4-iodophenyl)-1-(4-methylphenyl)prop-2-en-1-one	分子量：465.3 密度：N/A 沸点：N/A 熔点：N/A	384374-92-9	C₂₃H₁₆INO₂
[1,2,4]Triazolo[3,4-a]isoquinolin-7-amine	[1,2,4]Triazolo[3,4-a]isoquinolin-7-amine	分子量：184.20 密度：N/A 沸点：N/A 熔点：N/A	27210-13-5	C₁₀H₈N₄
N-(6-ethoxy-1,3-benzothiazol-2-yl)-3-(2,2,3,3-tetrafluoropropoxymethyl)benzamide	N-(6-ethoxy-1,3-benzothiazol-2-yl)-3-(2,2,3,3-tetrafluoropropoxymethyl)benzamide	分子量：442.4 密度：N/A 沸点：N/A 熔点：N/A	832674-14-3	C₂₀H₁₈F₄N₂O₃S
5-Methoxy-2-(3-methoxybenzyl)phenol	5-Methoxy-2-(3-methoxybenzyl)phenol	分子量：244.28 密度：N/A 沸点：N/A 熔点：N/A	679410-58-3	C₁₅H₁₆O₃
Methyl 2-hydrazinyl-3-phenylpropanoate	Methyl 2-hydrazinyl-3-phenylpropanoate	分子量：194.23 密度：N/A 沸点：N/A 熔点：N/A	40248-79-1	C₁₀H₁₄N₂O₂
N-[(1Z)-1-[3-(4-chlorophenyl)-1-phenyl-1H-pyrazol-4-yl]-3-oxo-3-(piperidin-1-yl)prop-1-en-2-yl]-4-methylbenzamide	N-[(1Z)-1-[3-(4-chlorophenyl)-1-phenyl-1H-pyrazol-4-yl]-3-oxo-3-(piperidin-1-yl)prop-1-en-2-yl]-4-methylbenzamide	分子量：525.0 密度：N/A 沸点：N/A 熔点：N/A	384350-11-2	C₃₁H₂₉ClN₄O₂
N-[(1Z)-3-(benzylamino)-3-oxo-1-{5-[3-(trifluoromethyl)phenyl]furan-2-yl}prop-1-en-2-yl]-4-methoxybenzamide	N-[(1Z)-3-(benzylamino)-3-oxo-1-{5-[3-(trifluoromethyl)phenyl]furan-2-yl}prop-1-en-2-yl]-4-methoxybenzamide	分子量：520.5 密度：N/A 沸点：N/A 熔点：N/A	385388-56-7	C₂₉H₂₃F₃N₂O₄