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
N-[(2Z)-5-(propan-2-yl)-1,3,4-thiadiazol-2(3H)-ylidene]-2-(3,5,9-trimethyl-7-oxo-7H-furo[3,2-g]chromen-6-yl)acetamide	N-[(2Z)-5-(propan-2-yl)-1,3,4-thiadiazol-2(3H)-ylidene]-2-(3,5,9-trimethyl-7-oxo-7H-furo[3,2-g]chromen-6-yl)acetamide	分子量：411.5 密度：N/A 沸点：N/A 熔点：N/A	1219550-24-9	C₂₁H₂₁N₃O₄S
ethyl 4-[(1-methyl-1H-indol-2-yl)carbonyl]piperazine-1-carboxylate	ethyl 4-[(1-methyl-1H-indol-2-yl)carbonyl]piperazine-1-carboxylate	分子量：315.37 密度：N/A 沸点：N/A 熔点：N/A	1219540-67-6	C₁₇H₂₁N₃O₃
N-[2-chloro-5-(1H-tetrazol-1-yl)phenyl]cyclopropanecarboxamide	N-[2-chloro-5-(1H-tetrazol-1-yl)phenyl]cyclopropanecarboxamide	分子量：263.68 密度：N/A 沸点：N/A 熔点：N/A	1189418-41-4	C₁₁H₁₀ClN₅O
(4-benzylpiperazin-1-yl)[5-(cyanomethoxy)-1H-indol-3-yl]acetic acid	(4-benzylpiperazin-1-yl)[5-(cyanomethoxy)-1H-indol-3-yl]acetic acid	分子量：404.5 密度：N/A 沸点：N/A 熔点：N/A	1236261-08-7	C₂₃H₂₄N₄O₃
N-(3-chlorobenzyl)-2-[3-(2-fluorophenyl)-6-oxo-1(6H)-pyridazinyl]acetamide	N-(3-chlorobenzyl)-2-[3-(2-fluorophenyl)-6-oxo-1(6H)-pyridazinyl]acetamide	分子量：371.8 密度：N/A 沸点：N/A 熔点：N/A	1219560-66-3	C₁₉H₁₅ClFN₃O₂
2-(4-bromo-1H-indol-1-yl)-N-(pyridin-2-yl)acetamide	2-(4-bromo-1H-indol-1-yl)-N-(pyridin-2-yl)acetamide	分子量：330.18 密度：N/A 沸点：N/A 熔点：N/A	1219583-63-7	C₁₅H₁₂BrN₃O
N-(2-fluorobenzyl)-2-(4-oxoquinazolin-3(4H)-yl)benzamide	N-(2-fluorobenzyl)-2-(4-oxoquinazolin-3(4H)-yl)benzamide	分子量：373.4 密度：N/A 沸点：N/A 熔点：N/A	1219572-78-7	C₂₂H₁₆FN₃O₂
N-[3-(acetylamino)phenyl]-2-(4-bromo-1H-indol-1-yl)acetamide	N-[3-(acetylamino)phenyl]-2-(4-bromo-1H-indol-1-yl)acetamide	分子量：386.2 密度：N/A 沸点：N/A 熔点：N/A	1219548-97-6	C₁₈H₁₆BrN₃O₂
2-[(2-methylpropyl)amino]-N-(pyridin-3-yl)-1,3-thiazole-4-carboxamide	2-[(2-methylpropyl)amino]-N-(pyridin-3-yl)-1,3-thiazole-4-carboxamide	分子量：276.36 密度：N/A 沸点：N/A 熔点：N/A	1219566-76-3	C₁₃H₁₆N₄OS
(N2Z,N6E)-N2,N6-bis(4-fluoro-3-methylbenzo[d]thiazol-2(3H)-ylidene)pyridine-2,6-dicarboxamide	(N2Z,N6E)-N2,N6-bis(4-fluoro-3-methylbenzo[d]thiazol-2(3H)-ylidene)pyridine-2,6-dicarboxamide	分子量：495.5 密度：N/A 沸点：N/A 熔点：N/A	1005957-56-1	C₂₃H₁₅F₂N₅O₂S₂
2-(4-chloro-1H-indol-1-yl)-N-(3-hydroxyphenyl)acetamide	2-(4-chloro-1H-indol-1-yl)-N-(3-hydroxyphenyl)acetamide	分子量：300.74 密度：N/A 沸点：N/A 熔点：N/A	1219579-04-0	C₁₆H₁₃ClN₂O₂
5-oxo-5-(3-oxopiperazin-1-yl)-N-[(2E)-5-(propan-2-yl)-1,3,4-thiadiazol-2(3H)-ylidene]pentanamide	5-oxo-5-(3-oxopiperazin-1-yl)-N-[(2E)-5-(propan-2-yl)-1,3,4-thiadiazol-2(3H)-ylidene]pentanamide	分子量：339.42 密度：N/A 沸点：N/A 熔点：N/A	1219545-80-8	C₁₄H₂₁N₅O₃S
6-(Furan-2-ylmethyl)-4-methyl-2-(2-methylprop-2-enyl)-7,8-dihydropurino[7,8-a]imidazole-1,3-dione	6-(Furan-2-ylmethyl)-4-methyl-2-(2-methylprop-2-enyl)-7,8-dihydropurino[7,8-a]imidazole-1,3-dione	分子量：341.4 密度：N/A 沸点：N/A 熔点：N/A	959245-90-0	C₁₇H₁₉N₅O₃
4-({[4-(3-fluorophenyl)-1,4,6,7-tetrahydro-5H-imidazo[4,5-c]pyridin-5-yl]carbonyl}amino)benzoic acid	4-({[4-(3-fluorophenyl)-1,4,6,7-tetrahydro-5H-imidazo[4,5-c]pyridin-5-yl]carbonyl}amino)benzoic acid	分子量：380.4 密度：N/A 沸点：N/A 熔点：N/A	1219569-20-6	C₂₀H₁₇FN₄O₃
4-[({4-[2-(trifluoromethoxy)phenyl]-1,4,6,7-tetrahydro-5H-imidazo[4,5-c]pyridin-5-yl}carbonyl)amino]benzoic acid	4-[({4-[2-(trifluoromethoxy)phenyl]-1,4,6,7-tetrahydro-5H-imidazo[4,5-c]pyridin-5-yl}carbonyl)amino]benzoic acid	分子量：446.4 密度：N/A 沸点：N/A 熔点：N/A	1219571-95-5	C₂₁H₁₇F₃N₄O₄
4-Chloro-2-(3-fluorophenyl)pyridine	4-Chloro-2-(3-fluorophenyl)pyridine	分子量：207.63 密度：N/A 沸点：N/A 熔点：N/A	1159814-60-4	C₁₁H₇ClFN
methyl 3-({[4-(3-chloro-4-fluorophenyl)-1,4,6,7-tetrahydro-5H-imidazo[4,5-c]pyridin-5-yl]carbonyl}amino)-4-methoxybenzoate	methyl 3-({[4-(3-chloro-4-fluorophenyl)-1,4,6,7-tetrahydro-5H-imidazo[4,5-c]pyridin-5-yl]carbonyl}amino)-4-methoxybenzoate	分子量：458.9 密度：N/A 沸点：N/A 熔点：N/A	1219559-68-8	C₂₂H₂₀ClFN₄O₄
4-ethoxy-3,5-dimethyl-N-(1-propionyl-1,2,3,4-tetrahydroquinolin-6-yl)benzenesulfonamide	4-ethoxy-3,5-dimethyl-N-(1-propionyl-1,2,3,4-tetrahydroquinolin-6-yl)benzenesulfonamide	分子量：416.5 密度：N/A 沸点：N/A 熔点：N/A	1021039-75-7	C₂₂H₂₈N₂O₄S
N-[2-(2-methoxyphenyl)ethyl]-1-(1H-tetrazol-1-yl)cyclohexanecarboxamide	N-[2-(2-methoxyphenyl)ethyl]-1-(1H-tetrazol-1-yl)cyclohexanecarboxamide	分子量：329.4 密度：N/A 沸点：N/A 熔点：N/A	1220108-05-3	C₁₇H₂₃N₅O₂
6-(3,5-dimethyl-1H-pyrazol-1-yl)-2-(2-(4-(2-methoxyphenyl)piperazin-1-yl)-2-oxoethyl)pyridazin-3(2H)-one	6-(3,5-dimethyl-1H-pyrazol-1-yl)-2-(2-(4-(2-methoxyphenyl)piperazin-1-yl)-2-oxoethyl)pyridazin-3(2H)-one	分子量：422.5 密度：N/A 沸点：N/A 熔点：N/A	1219565-32-8	C₂₂H₂₆N₆O₃
N-(1-(ethylsulfonyl)-1,2,3,4-tetrahydroquinolin-6-yl)-3-methyl-4-propoxybenzenesulfonamide	N-(1-(ethylsulfonyl)-1,2,3,4-tetrahydroquinolin-6-yl)-3-methyl-4-propoxybenzenesulfonamide	分子量：452.6 密度：N/A 沸点：N/A 熔点：N/A	1021039-83-7	C₂₁H₂₈N₂O₅S₂
3-methyl-N-(1-propionyl-1,2,3,4-tetrahydroquinolin-7-yl)benzenesulfonamide	3-methyl-N-(1-propionyl-1,2,3,4-tetrahydroquinolin-7-yl)benzenesulfonamide	分子量：358.5 密度：N/A 沸点：N/A 熔点：N/A	1021117-29-2	C₁₉H₂₂N₂O₃S
4-ethoxy-3,5-dimethyl-N-(1-propionyl-1,2,3,4-tetrahydroquinolin-7-yl)benzenesulfonamide	4-ethoxy-3,5-dimethyl-N-(1-propionyl-1,2,3,4-tetrahydroquinolin-7-yl)benzenesulfonamide	分子量：416.5 密度：N/A 沸点：N/A 熔点：N/A	1021039-91-7	C₂₂H₂₈N₂O₄S
2-(4-methoxyphenyl)-N-(1-(propylsulfonyl)-1,2,3,4-tetrahydroquinolin-7-yl)ethanesulfonamide	2-(4-methoxyphenyl)-N-(1-(propylsulfonyl)-1,2,3,4-tetrahydroquinolin-7-yl)ethanesulfonamide	分子量：452.6 密度：N/A 沸点：N/A 熔点：N/A	1021039-94-0	C₂₁H₂₈N₂O₅S₂
2-(4-bromo-1H-indol-1-yl)-N-[2-(morpholin-4-yl)ethyl]acetamide	2-(4-bromo-1H-indol-1-yl)-N-[2-(morpholin-4-yl)ethyl]acetamide	分子量：366.25 密度：N/A 沸点：N/A 熔点：N/A	1219573-43-9	C₁₆H₂₀BrN₃O₂
3-Benzyl-8-[4-(trifluoromethyl)benzoyl]-1,3,8-triazaspiro[4.5]decane-2,4-dione	3-Benzyl-8-[4-(trifluoromethyl)benzoyl]-1,3,8-triazaspiro[4.5]decane-2,4-dione	分子量：431.4 密度：N/A 沸点：N/A 熔点：N/A	1021040-07-2	C₂₂H₂₀F₃N₃O₃
3-Ethyl-8-(3-fluorobenzoyl)-1,3,8-triazaspiro[4.5]decane-2,4-dione	3-Ethyl-8-(3-fluorobenzoyl)-1,3,8-triazaspiro[4.5]decane-2,4-dione	分子量：319.33 密度：N/A 沸点：N/A 熔点：N/A	1021089-50-8	C₁₆H₁₈FN₃O₃
8-(2-Chloro-6-fluorobenzoyl)-3-methyl-1,3,8-triazaspiro[4.5]decane-2,4-dione	8-(2-Chloro-6-fluorobenzoyl)-3-methyl-1,3,8-triazaspiro[4.5]decane-2,4-dione	分子量：339.75 密度：N/A 沸点：N/A 熔点：N/A	1021040-23-2	C₁₅H₁₅ClFN₃O₃
3-Benzyl-8-((2,4-difluorophenyl)sulfonyl)-1,3,8-triazaspiro[4.5]decane-2,4-dione	3-Benzyl-8-((2,4-difluorophenyl)sulfonyl)-1,3,8-triazaspiro[4.5]decane-2,4-dione	分子量：435.4 密度：N/A 沸点：N/A 熔点：N/A	1021117-65-6	C₂₀H₁₉F₂N₃O₄S
8-((3,5-Dimethylisoxazol-4-yl)sulfonyl)-3-ethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione	8-((3,5-Dimethylisoxazol-4-yl)sulfonyl)-3-ethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione	分子量：356.40 密度：N/A 沸点：N/A 熔点：N/A	1021117-67-8	C₁₄H₂₀N₄O₅S
4-((6-bromo-2-((2-((2,5-dimethoxyphenyl)amino)-2-oxoethyl)thio)-4-oxoquinazolin-3(4H)-yl)methyl)-N-(2-methoxyethyl)benzamide	4-((6-bromo-2-((2-((2,5-dimethoxyphenyl)amino)-2-oxoethyl)thio)-4-oxoquinazolin-3(4H)-yl)methyl)-N-(2-methoxyethyl)benzamide	分子量：641.5 密度：N/A 沸点：N/A 熔点：N/A	422288-53-7	C₂₉H₂₉BrN₄O₆S
4-oxo-4-(3-oxopiperazin-1-yl)-N-[(2Z)-5-(propan-2-yl)-1,3,4-thiadiazol-2(3H)-ylidene]butanamide	4-oxo-4-(3-oxopiperazin-1-yl)-N-[(2Z)-5-(propan-2-yl)-1,3,4-thiadiazol-2(3H)-ylidene]butanamide	分子量：325.39 密度：N/A 沸点：N/A 熔点：N/A	1219554-79-6	C₁₃H₁₉N₅O₃S
2-(2-(4-(4-methoxyphenyl)piperazin-1-yl)-2-oxoethyl)-6-phenylpyridazin-3(2H)-one	2-(2-(4-(4-methoxyphenyl)piperazin-1-yl)-2-oxoethyl)-6-phenylpyridazin-3(2H)-one	分子量：404.5 密度：N/A 沸点：N/A 熔点：N/A	1219539-66-8	C₂₃H₂₄N₄O₃
[4-(4-chlorophenyl)-4-hydroxypiperidin-1-yl][2-(1H-tetrazol-1-yl)-5,6-dihydro-4H-cyclopenta[b]thiophen-3-yl]methanone	[4-(4-chlorophenyl)-4-hydroxypiperidin-1-yl][2-(1H-tetrazol-1-yl)-5,6-dihydro-4H-cyclopenta[b]thiophen-3-yl]methanone	分子量：429.9 密度：N/A 沸点：N/A 熔点：N/A	1219568-26-9	C₂₀H₂₀ClN₅O₂S
N-(2-hydroxyphenyl)-6-(3-oxo-1,2-benzothiazol-2(3H)-yl)hexanamide	N-(2-hydroxyphenyl)-6-(3-oxo-1,2-benzothiazol-2(3H)-yl)hexanamide	分子量：356.4 密度：N/A 沸点：N/A 熔点：N/A	1219577-48-6	C₁₉H₂₀N₂O₃S
2-[acetyl(propan-2-yl)amino]-N-(1,3-dihydro-2H-benzimidazol-2-ylidene)-4-methyl-1,3-thiazole-5-carboxamide	2-[acetyl(propan-2-yl)amino]-N-(1,3-dihydro-2H-benzimidazol-2-ylidene)-4-methyl-1,3-thiazole-5-carboxamide	分子量：357.4 密度：N/A 沸点：N/A 熔点：N/A	1219544-24-7	C₁₇H₁₉N₅O₂S
[(5-Chloro-2,4-dimethoxyphenyl)carbamoyl]methyl 5-methylthiophene-2-carboxylate	[(5-Chloro-2,4-dimethoxyphenyl)carbamoyl]methyl 5-methylthiophene-2-carboxylate	分子量：369.8 密度：N/A 沸点：N/A 熔点：N/A	1241157-85-6	C₁₆H₁₆ClNO₅S
2-(4-fluorobenzyl)-6-(4-fluoro-2-methoxyphenyl)pyridazin-3(2H)-one	2-(4-fluorobenzyl)-6-(4-fluoro-2-methoxyphenyl)pyridazin-3(2H)-one	分子量：328.3 密度：N/A 沸点：N/A 熔点：N/A	1219588-87-0	C₁₈H₁₄F₂N₂O₂
4-[(2,3,4,6-Tetra-O-benzoyl-I(2)-D-allopyranosyl)oxy]benzaldehyde	4-[(2,3,4,6-Tetra-O-benzoyl-I(2)-D-allopyranosyl)oxy]benzaldehyde	分子量：700.7 密度：N/A 沸点：N/A 熔点：N/A	950761-88-3	C₄₁H₃₂O₁₁
N-{[2-(2-fluorophenyl)-4-methyl-1,3-thiazol-5-yl]carbonyl}glycylglycine	N-{[2-(2-fluorophenyl)-4-methyl-1,3-thiazol-5-yl]carbonyl}glycylglycine	分子量：351.4 密度：N/A 沸点：N/A 熔点：N/A	1219547-00-8	C₁₅H₁₄FN₃O₄S
N-cyclohexyl-2-[3-(2-fluorophenyl)-6-oxo-1(6H)-pyridazinyl]acetamide	N-cyclohexyl-2-[3-(2-fluorophenyl)-6-oxo-1(6H)-pyridazinyl]acetamide	分子量：329.4 密度：N/A 沸点：N/A 熔点：N/A	1219551-38-8	C₁₈H₂₀FN₃O₂
6-(4-fluoro-2-methoxyphenyl)-2-(2-oxopropyl)pyridazin-3(2H)-one	6-(4-fluoro-2-methoxyphenyl)-2-(2-oxopropyl)pyridazin-3(2H)-one	分子量：276.26 密度：N/A 沸点：N/A 熔点：N/A	1219548-09-0	C₁₄H₁₃FN₂O₃
N-(3,4-dimethoxybenzyl)-2-[3-(2-fluorophenyl)-6-oxo-1(6H)-pyridazinyl]acetamide	N-(3,4-dimethoxybenzyl)-2-[3-(2-fluorophenyl)-6-oxo-1(6H)-pyridazinyl]acetamide	分子量：397.4 密度：N/A 沸点：N/A 熔点：N/A	1219581-72-2	C₂₁H₂₀FN₃O₄
N-(2-methyl-1H-benzimidazol-5-yl)-3-phenylpropanamide	N-(2-methyl-1H-benzimidazol-5-yl)-3-phenylpropanamide	分子量：279.34 密度：N/A 沸点：N/A 熔点：N/A	1219561-61-1	C₁₇H₁₇N₃O
ethyl (2-{[(5-hydroxy-1-oxo-2,3-dihydropyrrolo[1,2-a]quinazolin-3a(1H)-yl)carbonyl]amino}-1,3-thiazol-4-yl)acetate (non-preferred name)	ethyl (2-{[(5-hydroxy-1-oxo-2,3-dihydropyrrolo[1,2-a]quinazolin-3a(1H)-yl)carbonyl]amino}-1,3-thiazol-4-yl)acetate (non-preferred name)	分子量：414.4 密度：N/A 沸点：N/A 熔点：N/A	1236258-48-2	C₁₉H₁₈N₄O₅S
2-[2-(1,2-dimethyl-1H-indol-3-yl)-2-oxoethyl]-6-(4-methoxyphenyl)pyridazin-3(2H)-one	2-[2-(1,2-dimethyl-1H-indol-3-yl)-2-oxoethyl]-6-(4-methoxyphenyl)pyridazin-3(2H)-one	分子量：387.4 密度：N/A 沸点：N/A 熔点：N/A	1219581-95-9	C₂₃H₂₁N₃O₃
2-(6-Bromo-2-oxo-1-quinolyl)butanamide	2-(6-Bromo-2-oxo-1-quinolyl)butanamide	分子量：309.16 密度：N/A 沸点：N/A 熔点：N/A	1235488-42-2	C₁₃H₁₃BrN₂O₂
N-(2-chlorobenzyl)-2-(3-(3,5-dimethyl-1H-pyrazol-1-yl)-6-oxopyridazin-1(6H)-yl)acetamide	N-(2-chlorobenzyl)-2-(3-(3,5-dimethyl-1H-pyrazol-1-yl)-6-oxopyridazin-1(6H)-yl)acetamide	分子量：371.8 密度：N/A 沸点：N/A 熔点：N/A	1219543-26-6	C₁₈H₁₈ClN₅O₂
N-(1,3-benzodioxol-5-yl)-3-(4-bromo-1H-indol-1-yl)propanamide	N-(1,3-benzodioxol-5-yl)-3-(4-bromo-1H-indol-1-yl)propanamide	分子量：387.2 密度：N/A 沸点：N/A 熔点：N/A	1219568-09-8	C₁₈H₁₅BrN₂O₃
2-(4-bromo-1H-indol-1-yl)-N-[3-(2-oxopyrrolidin-1-yl)propyl]acetamide	2-(4-bromo-1H-indol-1-yl)-N-[3-(2-oxopyrrolidin-1-yl)propyl]acetamide	分子量：378.3 密度：N/A 沸点：N/A 熔点：N/A	1219550-36-3	C₁₇H₂₀BrN₃O₂