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
(5,6-dimethoxy-1-methyl-1H-indol-2-yl)[4-(methylsulfonyl)piperazin-1-yl]methanone	(5,6-dimethoxy-1-methyl-1H-indol-2-yl)[4-(methylsulfonyl)piperazin-1-yl]methanone	分子量：381.4 密度：N/A 沸点：N/A 熔点：N/A	1574334-51-2	C₁₇H₂₃N₃O₅S
3-[3-(pyridin-4-yl)-1,2,4-oxadiazol-5-yl]-N-(4H-1,2,4-triazol-3-yl)propanamide	3-[3-(pyridin-4-yl)-1,2,4-oxadiazol-5-yl]-N-(4H-1,2,4-triazol-3-yl)propanamide	分子量：285.26 密度：N/A 沸点：N/A 熔点：N/A	1574471-43-4	C₁₂H₁₁N₇O₂
3-(Bromomethyl)-5-chloro-1H-indole	3-(Bromomethyl)-5-chloro-1H-indole	分子量：244.51 密度：N/A 沸点：N/A 熔点：N/A	1823328-51-3	C₉H₇BrClN
3-Azabicyclo[3.1.1]heptane-1-carboxylic acid	3-Azabicyclo[3.1.1]heptane-1-carboxylic acid	分子量：141.17 密度：N/A 沸点：N/A 熔点：N/A	1628897-76-6	C₇H₁₁NO₂
N-(4-((6-chloro-2,3,4,9-tetrahydro-1H-carbazol-1-yl)amino)-4-oxobutyl)pyrazine-2-carboxamide	N-(4-((6-chloro-2,3,4,9-tetrahydro-1H-carbazol-1-yl)amino)-4-oxobutyl)pyrazine-2-carboxamide	分子量：411.9 密度：N/A 沸点：N/A 熔点：N/A	1574466-23-1	C₂₁H₂₂ClN₅O₂
3-Fluoro-8-methoxyquinoline	3-Fluoro-8-methoxyquinoline	分子量：177.17 密度：N/A 沸点：N/A 熔点：N/A	1779941-99-9	C₁₀H₈FNO
4-(((2-Amino-7H-purin-6-YL)oxy)methyl)benzonitrile	4-(((2-Amino-7H-purin-6-YL)oxy)methyl)benzonitrile	分子量：266.26 密度：N/A 沸点：N/A 熔点：N/A	1923082-67-0	C₁₃H₁₀N₆O
4-(2-(Trifluoromethoxy)phenyl)thiazol-2-amine	4-(2-(Trifluoromethoxy)phenyl)thiazol-2-amine	分子量：260.24 密度：N/A 沸点：N/A 熔点：N/A	1246550-61-7	C₁₀H₇F₃N₂OS
N-(1-{2-[4-(3-methoxyphenyl)piperazino]-2-oxoethyl}-1H-indol-4-yl)acetamide	N-(1-{2-[4-(3-methoxyphenyl)piperazino]-2-oxoethyl}-1H-indol-4-yl)acetamide	分子量：406.5 密度：N/A 沸点：N/A 熔点：N/A	1574495-26-3	C₂₃H₂₆N₄O₃
4-Chloro-2-(4-chlorophenyl)-7,8-dihydro-5H-pyrano[4,3-D]pyrimidine	4-Chloro-2-(4-chlorophenyl)-7,8-dihydro-5H-pyrano[4,3-D]pyrimidine	分子量：281.13 密度：N/A 沸点：N/A 熔点：N/A	1924486-83-8	C₁₃H₁₀Cl₂N₂O
2-[4-(acetylamino)-1H-indol-1-yl]-N-cycloheptylacetamide	2-[4-(acetylamino)-1H-indol-1-yl]-N-cycloheptylacetamide	分子量：327.4 密度：N/A 沸点：N/A 熔点：N/A	1574307-60-0	C₁₉H₂₅N₃O₂
Ethyl 4-(methylsulfanyl)benzyl sulfide	Ethyl 4-(methylsulfanyl)benzyl sulfide	分子量：198.4 密度：N/A 沸点：N/A 熔点：N/A	1443304-85-5	C₁₀H₁₄S₂
2-[4-(acetylamino)-1H-indol-1-yl]-N-(2,4-dimethoxyphenyl)acetamide	2-[4-(acetylamino)-1H-indol-1-yl]-N-(2,4-dimethoxyphenyl)acetamide	分子量：367.4 密度：N/A 沸点：N/A 熔点：N/A	1574409-34-9	C₂₀H₂₁N₃O₄
N-[2-(1H-1,3-benzimidazol-2-yl)ethyl]-2-[6,7-dimethoxy-2-methyl-4-oxo-3(4H)-quinazolinyl]acetamide	N-[2-(1H-1,3-benzimidazol-2-yl)ethyl]-2-[6,7-dimethoxy-2-methyl-4-oxo-3(4H)-quinazolinyl]acetamide	分子量：421.4 密度：N/A 沸点：N/A 熔点：N/A	1574326-11-6	C₂₂H₂₃N₅O₄
2-(3,5-dimethyl-1,2-oxazol-4-yl)-N-[3-(2-phenylethyl)-1H-1,2,4-triazol-5-yl]acetamide	2-(3,5-dimethyl-1,2-oxazol-4-yl)-N-[3-(2-phenylethyl)-1H-1,2,4-triazol-5-yl]acetamide	分子量：325.4 密度：N/A 沸点：N/A 熔点：N/A	1574325-73-7	C₁₇H₁₉N₅O₂
N-[(1-methyl-1H-benzimidazol-2-yl)methyl]-4-([1,2,4]triazolo[4,3-a]pyridin-3-yl)butanamide	N-[(1-methyl-1H-benzimidazol-2-yl)methyl]-4-([1,2,4]triazolo[4,3-a]pyridin-3-yl)butanamide	分子量：348.4 密度：N/A 沸点：N/A 熔点：N/A	1574321-45-1	C₁₉H₂₀N₆O
5-(2-Fluorophenyl)-6-methylthiazolo[3,2-B][1,2,4]triazole	5-(2-Fluorophenyl)-6-methylthiazolo[3,2-B][1,2,4]triazole	分子量：233.27 密度：N/A 沸点：N/A 熔点：N/A	1632154-28-9	C₁₁H₈FN₃S
N-(1,3-benzodioxol-5-ylmethyl)-4-(2-pyrimidinylamino)butanamide	N-(1,3-benzodioxol-5-ylmethyl)-4-(2-pyrimidinylamino)butanamide	分子量：314.34 密度：N/A 沸点：N/A 熔点：N/A	1401597-01-0	C₁₆H₁₈N₄O₃
2-(3,5-dimethyl-4-isoxazolyl)-N-(6-fluoro-2,3,4,9-tetrahydro-1H-carbazol-1-yl)acetamide	2-(3,5-dimethyl-4-isoxazolyl)-N-(6-fluoro-2,3,4,9-tetrahydro-1H-carbazol-1-yl)acetamide	分子量：341.4 密度：N/A 沸点：N/A 熔点：N/A	1574482-54-4	C₁₉H₂₀FN₃O₂
N-[5-(1H-benzimidazol-2-yl)pentyl]-2,2-dimethyl-5-oxotetrahydrofuran-3-carboxamide	N-[5-(1H-benzimidazol-2-yl)pentyl]-2,2-dimethyl-5-oxotetrahydrofuran-3-carboxamide	分子量：343.4 密度：N/A 沸点：N/A 熔点：N/A	1574407-02-5	C₁₉H₂₅N₃O₃
2-Amino-1-(1-benzothiophen-2-yl)propan-1-one	2-Amino-1-(1-benzothiophen-2-yl)propan-1-one	分子量：205.28 密度：N/A 沸点：N/A 熔点：N/A	2228972-43-6	C₁₁H₁₁NOS
N-[2-(1H-1,3-benzimidazol-2-yl)ethyl]-4-phenyltetrahydro-2H-pyran-4-carboxamide	N-[2-(1H-1,3-benzimidazol-2-yl)ethyl]-4-phenyltetrahydro-2H-pyran-4-carboxamide	分子量：349.4 密度：N/A 沸点：N/A 熔点：N/A	1574406-91-9	C₂₁H₂₃N₃O₂
1-(4,6-dimethylpyrimidin-2-yl)-N-(1H-imidazol-2-yl)piperidine-3-carboxamide	1-(4,6-dimethylpyrimidin-2-yl)-N-(1H-imidazol-2-yl)piperidine-3-carboxamide	分子量：300.36 密度：N/A 沸点：N/A 熔点：N/A	1401567-04-1	C₁₅H₂₀N₆O
1-methyl-N-(3-[1,2,4]triazolo[4,3-a]pyridin-3-ylpropyl)-1H-indole-3-carboxamide	1-methyl-N-(3-[1,2,4]triazolo[4,3-a]pyridin-3-ylpropyl)-1H-indole-3-carboxamide	分子量：333.4 密度：N/A 沸点：N/A 熔点：N/A	1574320-96-9	C₁₉H₁₉N₅O
5-(4-Chlorophenyl)-6-methylthiazolo[3,2-B][1,2,4]triazole	5-(4-Chlorophenyl)-6-methylthiazolo[3,2-B][1,2,4]triazole	分子量：249.72 密度：N/A 沸点：N/A 熔点：N/A	1632154-29-0	C₁₁H₈ClN₃S
N-{1-[2-oxo-2-(thiomorpholin-4-yl)ethyl]-1H-indol-4-yl}acetamide	N-{1-[2-oxo-2-(thiomorpholin-4-yl)ethyl]-1H-indol-4-yl}acetamide	分子量：317.4 密度：N/A 沸点：N/A 熔点：N/A	1574483-08-1	C₁₆H₁₉N₃O₂S
6,7-Dimethyl-3H-imidazo[4,5-c]pyridin-2-amine	6,7-Dimethyl-3H-imidazo[4,5-c]pyridin-2-amine	分子量：162.19 密度：N/A 沸点：N/A 熔点：N/A	1353102-06-3	C₈H₁₀N₄
2-bromo-N-(3-{3-oxo-2H,3H,5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyridin-2-yl}propyl)pyridine-4-carboxamide	2-bromo-N-(3-{3-oxo-2H,3H,5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyridin-2-yl}propyl)pyridine-4-carboxamide	分子量：380.24 密度：N/A 沸点：N/A 熔点：N/A	1394695-86-3	C₁₅H₁₈BrN₅O₂
N-(5-chloro-2-methylphenyl)-2-(3,4-dimethylphenyl)-3-(methylthio)-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxamide	N-(5-chloro-2-methylphenyl)-2-(3,4-dimethylphenyl)-3-(methylthio)-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxamide	分子量：455.0 密度：N/A 沸点：N/A 熔点：N/A	894888-75-6	C₂₄H₂₇ClN₄OS
2-(benzylthio)-N-(3,4-dimethoxyphenyl)-3-phenyl-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxamide	2-(benzylthio)-N-(3,4-dimethoxyphenyl)-3-phenyl-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxamide	分子量：514.6 密度：N/A 沸点：N/A 熔点：N/A	894888-67-6	C₂₉H₃₀N₄O₃S
methyl (2Z)-3-anilino-2-[(3,4-dimethylphenyl)sulfonyl]acrylate	methyl (2Z)-3-anilino-2-[(3,4-dimethylphenyl)sulfonyl]acrylate	分子量：345.4 密度：N/A 沸点：N/A 熔点：N/A	1327196-11-1	C₁₈H₁₉NO₄S
2-(ethylthio)-N-(2-fluorophenyl)-3-phenyl-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxamide	2-(ethylthio)-N-(2-fluorophenyl)-3-phenyl-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxamide	分子量：410.5 密度：N/A 沸点：N/A 熔点：N/A	1359134-18-1	C₂₂H₂₃FN₄OS
(1R,4aS,4bS,7R,9S,10aS)-7-Ethenyl-1,2,3,4,4a,4b,5,6,7,9,10,10a-dodecahydro-9-hydroxy-1,4a,7-trimethyl-1-phenanthrenecarboxylic acid	(1R,4aS,4bS,7R,9S,10aS)-7-Ethenyl-1,2,3,4,4a,4b,5,6,7,9,10,10a-dodecahydro-9-hydroxy-1,4a,7-trimethyl-1-phenanthrenecarboxylic acid	分子量：318.4 密度：N/A 沸点：N/A 熔点：N/A	23807-91-2	C₂₀H₃₀O₃
2-(ethylthio)-N-(4-methoxyphenyl)-3-phenyl-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxamide	2-(ethylthio)-N-(4-methoxyphenyl)-3-phenyl-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxamide	分子量：422.5 密度：N/A 沸点：N/A 熔点：N/A	894886-86-3	C₂₃H₂₆N₄O₂S
Methyl 3-(2,2-dichloro-3-oxocyclobutyl)benzoate	Methyl 3-(2,2-dichloro-3-oxocyclobutyl)benzoate	分子量：273.11 密度：N/A 沸点：N/A 熔点：N/A	1418274-32-4	C₁₂H₁₀Cl₂O₃
2-(3,4-dimethylphenyl)-N-(4-methoxyphenyl)-3-(methylthio)-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxamide	2-(3,4-dimethylphenyl)-N-(4-methoxyphenyl)-3-(methylthio)-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxamide	分子量：436.6 密度：N/A 沸点：N/A 熔点：N/A	894886-62-5	C₂₄H₂₈N₄O₂S
2-(4-methoxyphenyl)-3-(propylthio)-N-(o-tolyl)-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxamide	2-(4-methoxyphenyl)-3-(propylthio)-N-(o-tolyl)-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxamide	分子量：450.6 密度：N/A 沸点：N/A 熔点：N/A	894886-46-5	C₂₅H₃₀N₄O₂S
4-Piperazin-1-yl-1,7a-dihydrobenzimidazol-2-one	4-Piperazin-1-yl-1,7a-dihydrobenzimidazol-2-one	分子量：218.26 密度：N/A 沸点：N/A 熔点：N/A	282547-66-4	C₁₁H₁₄N₄O
2-[(4-chloro-2-nitrophenyl)sulfanyl]-N-(1-cyanoethyl)acetamide	2-[(4-chloro-2-nitrophenyl)sulfanyl]-N-(1-cyanoethyl)acetamide	分子量：299.73 密度：N/A 沸点：N/A 熔点：N/A	1797801-81-0	C₁₁H₁₀ClN₃O₃S
N-(2-ethoxyphenyl)-2-(4-methoxyphenyl)-3-(methylthio)-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxamide	N-(2-ethoxyphenyl)-2-(4-methoxyphenyl)-3-(methylthio)-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxamide	分子量：452.6 密度：N/A 沸点：N/A 熔点：N/A	894883-34-2	C₂₄H₂₈N₄O₃S
Methyl 2-(((tert-butoxycarbonyl)amino)methyl)thiazole-5-carboxylate	Methyl 2-(((tert-butoxycarbonyl)amino)methyl)thiazole-5-carboxylate	分子量：272.32 密度：N/A 沸点：N/A 熔点：N/A	232612-28-1	C₁₁H₁₆N₂O₄S
N-(2-methoxyphenyl)-2-(4-methoxyphenyl)-3-(propylthio)-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxamide	N-(2-methoxyphenyl)-2-(4-methoxyphenyl)-3-(propylthio)-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxamide	分子量：466.6 密度：N/A 沸点：N/A 熔点：N/A	894883-18-2	C₂₅H₃₀N₄O₃S
Tert-butyl 2-(cyclopentylsulfonyl)acetate	Tert-butyl 2-(cyclopentylsulfonyl)acetate	分子量：248.34 密度：N/A 沸点：N/A 熔点：N/A	1504589-15-4	C₁₁H₂₀O₄S
2-(3,4-dimethylphenyl)-3-(methylthio)-N-(2-(trifluoromethyl)phenyl)-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxamide	2-(3,4-dimethylphenyl)-3-(methylthio)-N-(2-(trifluoromethyl)phenyl)-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxamide	分子量：474.5 密度：N/A 沸点：N/A 熔点：N/A	1359133-66-6	C₂₄H₂₅F₃N₄OS
5alpha-Cholanic acid, methyl ester	5alpha-Cholanic acid, methyl ester	分子量：374.6 密度：N/A 沸点：N/A 熔点：N/A	1172-09-4	C₂₅H₄₂O₂
N-(2,4-dimethoxyphenyl)-2-(3,4-dimethylphenyl)-3-(ethylthio)-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxamide	N-(2,4-dimethoxyphenyl)-2-(3,4-dimethylphenyl)-3-(ethylthio)-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxamide	分子量：480.6 密度：N/A 沸点：N/A 熔点：N/A	1359314-26-3	C₂₆H₃₂N₄O₃S
N-(2,4-dimethoxyphenyl)-2-(ethylthio)-3-phenyl-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxamide	N-(2,4-dimethoxyphenyl)-2-(ethylthio)-3-phenyl-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxamide	分子量：452.6 密度：N/A 沸点：N/A 熔点：N/A	894881-43-7	C₂₄H₂₈N₄O₃S
N-(2,4-dimethoxyphenyl)-2-(3,4-dimethylphenyl)-3-(methylthio)-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxamide	N-(2,4-dimethoxyphenyl)-2-(3,4-dimethylphenyl)-3-(methylthio)-1,4,8-triazaspiro[4.5]deca-1,3-diene-8-carboxamide	分子量：466.6 密度：N/A 沸点：N/A 熔点：N/A	1359133-58-6	C₂₅H₃₀N₄O₃S
Digitogenin 2,3-diacetate	Digitogenin 2,3-diacetate	分子量：532.7 密度：N/A 沸点：N/A 熔点：N/A	51478-16-1	C₃₁H₄₈O₇
Neogmelinol acetate	Neogmelinol acetate	分子量：444.5 密度：N/A 沸点：N/A 熔点：N/A	81426-16-6	C₂₄H₂₈O₈