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
ethyl 2-(1-benzylimidazol-4-yl)acetate	ethyl 2-(1-benzylimidazol-4-yl)acetate	分子量：244.29 密度：N/A 沸点：N/A 熔点：N/A	163210-50-2	C₁₄H₁₆N₂O₂
1-(4-[3-(Aminomethyl)pyridin-2-yl]piperazin-1-yl)ethan-1-one	1-(4-[3-(Aminomethyl)pyridin-2-yl]piperazin-1-yl)ethan-1-one	分子量：234.30 密度：N/A 沸点：N/A 熔点：N/A	953739-99-6	C₁₂H₁₈N₄O
methyl 3-[3-(tert-butoxycarbonylamino)propoxy]benzoate	methyl 3-[3-(tert-butoxycarbonylamino)propoxy]benzoate	分子量：309.36 密度：N/A 沸点：N/A 熔点：N/A	174665-04-4	C₁₆H₂₃NO₅
2-mercapto-3,6-dimethylquinazolin-4(3H)-one	2-mercapto-3,6-dimethylquinazolin-4(3H)-one	分子量：206.27 密度：N/A 沸点：N/A 熔点：N/A	80195-31-9	C₁₀H₁₀N₂OS
2-Cyclopentylidene-1,3-dithiole	2-Cyclopentylidene-1,3-dithiole	分子量：170.3 密度：N/A 沸点：N/A 熔点：N/A	133113-77-6	C₈H₁₀S₂
(6R)-6-(5Chloro-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)tetrahydro-4h-furo(3,2-d)(1,3,2)dioxaphosphinin-2-olate 2-oxide	(6R)-6-(5Chloro-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)tetrahydro-4h-furo(3,2-d)(1,3,2)dioxaphosphinin-2-olate 2-oxide	分子量：324.61 密度：N/A 沸点：N/A 熔点：N/A	99966-15-1	C₉H₁₀ClN₂O₇P
5-Cyclopropyl-2'-deoxyuridine	5-Cyclopropyl-2'-deoxyuridine	分子量：268.27 密度：N/A 沸点：N/A 熔点：N/A	108274-20-0	C₁₂H₁₆N₂O₅
N-(2-(1H-indol-3-yl)ethyl)-1-(o-tolyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine	N-(2-(1H-indol-3-yl)ethyl)-1-(o-tolyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine	分子量：368.4 密度：N/A 沸点：N/A 熔点：N/A	852314-06-8	C₂₂H₂₀N₆
4-Amino-7-(2-deoxy-beta-D-ribofuranosyl)-7H-pyrrolo[2,3-d]pyrimidin-5-carboxamidine	4-Amino-7-(2-deoxy-beta-D-ribofuranosyl)-7H-pyrrolo[2,3-d]pyrimidin-5-carboxamidine	分子量：292.29 密度：N/A 沸点：N/A 熔点：N/A	120592-96-3	C₁₂H₁₆N₆O₃
2-Ethyl-6-(4-fluorophenoxy)-1,5-naphthyridin-4(1H)-one	2-Ethyl-6-(4-fluorophenoxy)-1,5-naphthyridin-4(1H)-one	分子量：284.28 密度：N/A 沸点：N/A 熔点：N/A	143071-79-8	C₁₆H₁₃FN₂O₂
4-ethoxy-N-(2-{[6-(4-methylphenyl)pyridazin-3-yl]oxy}ethyl)benzamide	4-ethoxy-N-(2-{[6-(4-methylphenyl)pyridazin-3-yl]oxy}ethyl)benzamide	分子量：377.4 密度：N/A 沸点：N/A 熔点：N/A	1005296-36-5	C₂₂H₂₃N₃O₃
5-chloro-2-methoxy-N-(2-{[6-(4-methoxyphenyl)pyridazin-3-yl]oxy}ethyl)benzamide	5-chloro-2-methoxy-N-(2-{[6-(4-methoxyphenyl)pyridazin-3-yl]oxy}ethyl)benzamide	分子量：413.9 密度：N/A 沸点：N/A 熔点：N/A	1005304-80-2	C₂₁H₂₀ClN₃O₄
N-(2-{[6-(4-fluorophenyl)pyridazin-3-yl]oxy}ethyl)-3,4,5-trimethoxybenzamide	N-(2-{[6-(4-fluorophenyl)pyridazin-3-yl]oxy}ethyl)-3,4,5-trimethoxybenzamide	分子量：427.4 密度：N/A 沸点：N/A 熔点：N/A	920248-54-0	C₂₂H₂₂FN₃O₅
2-fluoro-N-(2-((6-(4-fluorophenyl)pyridazin-3-yl)oxy)ethyl)benzamide	2-fluoro-N-(2-((6-(4-fluorophenyl)pyridazin-3-yl)oxy)ethyl)benzamide	分子量：355.3 密度：N/A 沸点：N/A 熔点：N/A	920407-22-3	C₁₉H₁₅F₂N₃O₂
3-fluoro-N-(2-{[6-(4-fluorophenyl)pyridazin-3-yl]oxy}ethyl)benzamide	3-fluoro-N-(2-{[6-(4-fluorophenyl)pyridazin-3-yl]oxy}ethyl)benzamide	分子量：355.3 密度：N/A 沸点：N/A 熔点：N/A	920248-62-0	C₁₉H₁₅F₂N₃O₂
4-fluoro-N-(2-((6-(4-fluorophenyl)pyridazin-3-yl)oxy)ethyl)benzamide	4-fluoro-N-(2-((6-(4-fluorophenyl)pyridazin-3-yl)oxy)ethyl)benzamide	分子量：355.3 密度：N/A 沸点：N/A 熔点：N/A	920363-82-2	C₁₉H₁₅F₂N₃O₂
N-(2-((6-(4-ethoxyphenyl)pyridazin-3-yl)oxy)ethyl)-2-methylbenzamide	N-(2-((6-(4-ethoxyphenyl)pyridazin-3-yl)oxy)ethyl)-2-methylbenzamide	分子量：377.4 密度：N/A 沸点：N/A 熔点：N/A	920249-33-8	C₂₂H₂₃N₃O₃
N-(2-((6-(4-ethoxyphenyl)pyridazin-3-yl)oxy)ethyl)-4-methylbenzamide	N-(2-((6-(4-ethoxyphenyl)pyridazin-3-yl)oxy)ethyl)-4-methylbenzamide	分子量：377.4 密度：N/A 沸点：N/A 熔点：N/A	920408-86-2	C₂₂H₂₃N₃O₃
N-(2-((6-(4-ethoxyphenyl)pyridazin-3-yl)oxy)ethyl)-4-methoxybenzamide	N-(2-((6-(4-ethoxyphenyl)pyridazin-3-yl)oxy)ethyl)-4-methoxybenzamide	分子量：393.4 密度：N/A 沸点：N/A 熔点：N/A	920157-50-2	C₂₂H₂₃N₃O₄
N-(2-((6-(4-ethoxyphenyl)pyridazin-3-yl)oxy)ethyl)-3,4-dimethoxybenzamide	N-(2-((6-(4-ethoxyphenyl)pyridazin-3-yl)oxy)ethyl)-3,4-dimethoxybenzamide	分子量：423.5 密度：N/A 沸点：N/A 熔点：N/A	920365-51-1	C₂₃H₂₅N₃O₅
N-(2-((6-(4-ethoxyphenyl)pyridazin-3-yl)oxy)ethyl)-4-fluorobenzamide	N-(2-((6-(4-ethoxyphenyl)pyridazin-3-yl)oxy)ethyl)-4-fluorobenzamide	分子量：381.4 密度：N/A 沸点：N/A 熔点：N/A	920249-45-2	C₂₁H₂₀FN₃O₃
ethyl 4-({[5-(3-chloro-4-methoxyphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]acetyl}amino)benzoate	ethyl 4-({[5-(3-chloro-4-methoxyphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]acetyl}amino)benzoate	分子量：485.9 密度：N/A 沸点：N/A 熔点：N/A	1052606-91-3	C₂₂H₂₀ClN₅O₆
2-[5-(3-chloro-4-methoxyphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]-N-(2-ethylphenyl)acetamide	2-[5-(3-chloro-4-methoxyphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]-N-(2-ethylphenyl)acetamide	分子量：441.9 密度：N/A 沸点：N/A 熔点：N/A	1052606-64-0	C₂₁H₂₀ClN₅O₄
2-[5-(3-chloro-4-methoxyphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]-N-(3,4-dimethoxyphenyl)acetamide	2-[5-(3-chloro-4-methoxyphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]-N-(3,4-dimethoxyphenyl)acetamide	分子量：473.9 密度：N/A 沸点：N/A 熔点：N/A	1052607-09-6	C₂₁H₂₀ClN₅O₆
ethyl 4-({[5-(3,4-difluorophenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]acetyl}amino)benzoate	ethyl 4-({[5-(3,4-difluorophenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]acetyl}amino)benzoate	分子量：457.4 密度：N/A 沸点：N/A 熔点：N/A	1052607-77-8	C₂₁H₁₇F₂N₅O₅
5-(3,4-dimethoxyphenyl)-1-(4-fluorobenzyl)-3a,6a-dihydropyrrolo[3,4-d][1,2,3]triazole-4,6(1H,5H)-dione	5-(3,4-dimethoxyphenyl)-1-(4-fluorobenzyl)-3a,6a-dihydropyrrolo[3,4-d][1,2,3]triazole-4,6(1H,5H)-dione	分子量：384.4 密度：N/A 沸点：N/A 熔点：N/A	1008274-87-0	C₁₉H₁₇FN₄O₄
3-[(3-chlorophenyl)sulfonyl]-N-(2-phenylethyl)thieno[2,3-e][1,2,3]triazolo[1,5-a]pyrimidin-5-amine	3-[(3-chlorophenyl)sulfonyl]-N-(2-phenylethyl)thieno[2,3-e][1,2,3]triazolo[1,5-a]pyrimidin-5-amine	分子量：470.0 密度：N/A 沸点：N/A 熔点：N/A	892729-32-7	C₂₁H₁₆ClN₅O₂S₂
3-[(3-chlorophenyl)sulfonyl]-N-(2-methoxybenzyl)thieno[2,3-e][1,2,3]triazolo[1,5-a]pyrimidin-5-amine	3-[(3-chlorophenyl)sulfonyl]-N-(2-methoxybenzyl)thieno[2,3-e][1,2,3]triazolo[1,5-a]pyrimidin-5-amine	分子量：486.0 密度：N/A 沸点：N/A 熔点：N/A	892729-36-1	C₂₁H₁₆ClN₅O₃S₂
3-[(3-Chlorophenyl)sulfonyl]-5-(1-pyrrolidinyl)thieno[2,3-e][1,2,3]triazolo[1,5-a]pyrimidine	3-[(3-Chlorophenyl)sulfonyl]-5-(1-pyrrolidinyl)thieno[2,3-e][1,2,3]triazolo[1,5-a]pyrimidine	分子量：419.9 密度：N/A 沸点：N/A 熔点：N/A	899965-08-3	C₁₇H₁₄ClN₅O₂S₂
2-[3-(anilinomethyl)-6,7-dimethoxy-2-oxoquinolin-1(2H)-yl]-N-(2,5-dimethylphenyl)acetamide	2-[3-(anilinomethyl)-6,7-dimethoxy-2-oxoquinolin-1(2H)-yl]-N-(2,5-dimethylphenyl)acetamide	分子量：471.5 密度：N/A 沸点：N/A 熔点：N/A	894548-33-5	C₂₈H₂₉N₃O₄
2-(6,7-dimethoxy-2-oxo-3-((phenylamino)methyl)quinolin-1(2H)-yl)-N-(m-tolyl)acetamide	2-(6,7-dimethoxy-2-oxo-3-((phenylamino)methyl)quinolin-1(2H)-yl)-N-(m-tolyl)acetamide	分子量：457.5 密度：N/A 沸点：N/A 熔点：N/A	894548-56-2	C₂₇H₂₇N₃O₄
2-{6,7-dimethoxy-2-oxo-3-[(phenylamino)methyl]-1,2-dihydroquinolin-1-yl}-N-(4-fluorophenyl)acetamide	2-{6,7-dimethoxy-2-oxo-3-[(phenylamino)methyl]-1,2-dihydroquinolin-1-yl}-N-(4-fluorophenyl)acetamide	分子量：461.5 密度：N/A 沸点：N/A 熔点：N/A	894548-64-2	C₂₆H₂₄FN₃O₄
2-{6,7-dimethoxy-2-oxo-3-[(phenylamino)methyl]-1,2-dihydroquinolin-1-yl}-N-(3-fluorophenyl)acetamide	2-{6,7-dimethoxy-2-oxo-3-[(phenylamino)methyl]-1,2-dihydroquinolin-1-yl}-N-(3-fluorophenyl)acetamide	分子量：461.5 密度：N/A 沸点：N/A 熔点：N/A	894548-80-2	C₂₆H₂₄FN₃O₄
N-(4-chlorophenyl)-2-{6,7-dimethoxy-2-oxo-3-[(phenylamino)methyl]-1,2-dihydroquinolin-1-yl}acetamide	N-(4-chlorophenyl)-2-{6,7-dimethoxy-2-oxo-3-[(phenylamino)methyl]-1,2-dihydroquinolin-1-yl}acetamide	分子量：477.9 密度：N/A 沸点：N/A 熔点：N/A	894549-12-3	C₂₆H₂₄ClN₃O₄
N-(2-chlorophenyl)-2-{6,7-dimethoxy-2-oxo-3-[(phenylamino)methyl]-1,2-dihydroquinolin-1-yl}acetamide	N-(2-chlorophenyl)-2-{6,7-dimethoxy-2-oxo-3-[(phenylamino)methyl]-1,2-dihydroquinolin-1-yl}acetamide	分子量：477.9 密度：N/A 沸点：N/A 熔点：N/A	894549-44-1	C₂₆H₂₄ClN₃O₄
2-(3-(((4-ethylphenyl)amino)methyl)-6,7-dimethoxy-2-oxoquinolin-1(2H)-yl)-N-(o-tolyl)acetamide	2-(3-(((4-ethylphenyl)amino)methyl)-6,7-dimethoxy-2-oxoquinolin-1(2H)-yl)-N-(o-tolyl)acetamide	分子量：485.6 密度：N/A 沸点：N/A 熔点：N/A	894556-42-4	C₂₉H₃₁N₃O₄
2-(3-(((4-ethylphenyl)amino)methyl)-6,7-dimethoxy-2-oxoquinolin-1(2H)-yl)-N-(2-fluorophenyl)acetamide	2-(3-(((4-ethylphenyl)amino)methyl)-6,7-dimethoxy-2-oxoquinolin-1(2H)-yl)-N-(2-fluorophenyl)acetamide	分子量：489.5 密度：N/A 沸点：N/A 熔点：N/A	894557-49-4	C₂₈H₂₈FN₃O₄
5-(3-chloro-4-methoxyphenyl)-1-[(4-chlorophenyl)methyl]-1H,3aH,4H,5H,6H,6aH-pyrrolo[3,4-d][1,2,3]triazole-4,6-dione	5-(3-chloro-4-methoxyphenyl)-1-[(4-chlorophenyl)methyl]-1H,3aH,4H,5H,6H,6aH-pyrrolo[3,4-d][1,2,3]triazole-4,6-dione	分子量：405.2 密度：N/A 沸点：N/A 熔点：N/A	1008263-21-5	C₁₈H₁₄Cl₂N₄O₃
3-(3,5-dimethylphenyl)-1-((4-oxo-4H-pyrido[1,2-a]pyrimidin-2-yl)methyl)quinazoline-2,4(1H,3H)-dione	3-(3,5-dimethylphenyl)-1-((4-oxo-4H-pyrido[1,2-a]pyrimidin-2-yl)methyl)quinazoline-2,4(1H,3H)-dione	分子量：424.5 密度：N/A 沸点：N/A 熔点：N/A	899900-63-1	C₂₅H₂₀N₄O₃
2-[5-(3,4-difluorophenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]-N-(3-methoxyphenyl)acetamide	2-[5-(3,4-difluorophenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]-N-(3-methoxyphenyl)acetamide	分子量：415.3 密度：N/A 沸点：N/A 熔点：N/A	1052609-13-8	C₁₉H₁₅F₂N₅O₄
2-[5-(3,4-difluorophenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]-N-(4-ethylphenyl)acetamide	2-[5-(3,4-difluorophenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]-N-(4-ethylphenyl)acetamide	分子量：413.4 密度：N/A 沸点：N/A 熔点：N/A	1007922-32-8	C₂₀H₁₇F₂N₅O₃
N-(5-chloro-2,4-dimethoxyphenyl)-2-[5-(3,4-difluorophenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]acetamide	N-(5-chloro-2,4-dimethoxyphenyl)-2-[5-(3,4-difluorophenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]acetamide	分子量：479.8 密度：N/A 沸点：N/A 熔点：N/A	1052607-46-1	C₂₀H₁₆ClF₂N₅O₅
2-[5-(3,4-dimethylphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]-N-phenylacetamide	2-[5-(3,4-dimethylphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]-N-phenylacetamide	分子量：377.4 密度：N/A 沸点：N/A 熔点：N/A	1008648-08-5	C₂₀H₁₉N₅O₃
N-(4-chlorophenyl)-2-(5-(3,4-dimethylphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl)acetamide	N-(4-chlorophenyl)-2-(5-(3,4-dimethylphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl)acetamide	分子量：411.8 密度：N/A 沸点：N/A 熔点：N/A	1008263-24-8	C₂₀H₁₈ClN₅O₃
1-[7-Chloro-3-(4-ethylbenzenesulfonyl)-[1,2,3]triazolo[1,5-A]quinazolin-5-YL]-4-methylpiperazine	1-[7-Chloro-3-(4-ethylbenzenesulfonyl)-[1,2,3]triazolo[1,5-A]quinazolin-5-YL]-4-methylpiperazine	分子量：471.0 密度：N/A 沸点：N/A 熔点：N/A	904581-83-5	C₂₂H₂₃ClN₆O₂S
1-[7-Chloro-3-(4-ethylbenzenesulfonyl)-[1,2,3]triazolo[1,5-A]quinazolin-5-YL]pyrrolidine	1-[7-Chloro-3-(4-ethylbenzenesulfonyl)-[1,2,3]triazolo[1,5-A]quinazolin-5-YL]pyrrolidine	分子量：441.9 密度：N/A 沸点：N/A 熔点：N/A	904582-73-6	C₂₁H₂₀ClN₅O₂S
2-(6,7-dimethoxy-2-oxo-3-((p-tolylamino)methyl)quinolin-1(2H)-yl)-N-(3,4-dimethylphenyl)acetamide	2-(6,7-dimethoxy-2-oxo-3-((p-tolylamino)methyl)quinolin-1(2H)-yl)-N-(3,4-dimethylphenyl)acetamide	分子量：485.6 密度：N/A 沸点：N/A 熔点：N/A	894551-59-8	C₂₉H₃₁N₃O₄
2-(3-(((4-ethylphenyl)amino)methyl)-6,7-dimethoxy-2-oxoquinolin-1(2H)-yl)-N-(3-fluorophenyl)acetamide	2-(3-(((4-ethylphenyl)amino)methyl)-6,7-dimethoxy-2-oxoquinolin-1(2H)-yl)-N-(3-fluorophenyl)acetamide	分子量：489.5 密度：N/A 沸点：N/A 熔点：N/A	894557-29-0	C₂₈H₂₈FN₃O₄
N-(2,5-dimethylphenyl)-2-(7-methoxy-3-(((4-methoxyphenyl)amino)methyl)-2-oxoquinolin-1(2H)-yl)acetamide	N-(2,5-dimethylphenyl)-2-(7-methoxy-3-(((4-methoxyphenyl)amino)methyl)-2-oxoquinolin-1(2H)-yl)acetamide	分子量：471.5 密度：N/A 沸点：N/A 熔点：N/A	894560-58-8	C₂₈H₂₉N₃O₄
N-(3,5-dimethylphenyl)-2-(7-methoxy-3-(((4-methoxyphenyl)amino)methyl)-2-oxoquinolin-1(2H)-yl)acetamide	N-(3,5-dimethylphenyl)-2-(7-methoxy-3-(((4-methoxyphenyl)amino)methyl)-2-oxoquinolin-1(2H)-yl)acetamide	分子量：471.5 密度：N/A 沸点：N/A 熔点：N/A	894562-63-1	C₂₈H₂₉N₃O₄