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-(3-Chlorobenzoyl)-3-(2,3-dihydro-1-benzofuran-5-yl)pyrrolidine	1-(3-Chlorobenzoyl)-3-(2,3-dihydro-1-benzofuran-5-yl)pyrrolidine	分子量：327.8 密度：N/A 沸点：N/A 熔点：N/A	2097872-54-1	C₁₉H₁₈ClNO₂
Methyl 4-[3-(2,3-dihydro-1-benzofuran-5-yl)pyrrolidine-1-carbonyl]benzoate	Methyl 4-[3-(2,3-dihydro-1-benzofuran-5-yl)pyrrolidine-1-carbonyl]benzoate	分子量：351.4 密度：N/A 沸点：N/A 熔点：N/A	2097909-68-5	C₂₁H₂₁NO₄
2-(2-Chloro-6-fluorophenyl)-1-[3-(2,3-dihydro-1-benzofuran-5-yl)pyrrolidin-1-yl]ethan-1-one	2-(2-Chloro-6-fluorophenyl)-1-[3-(2,3-dihydro-1-benzofuran-5-yl)pyrrolidin-1-yl]ethan-1-one	分子量：359.8 密度：N/A 沸点：N/A 熔点：N/A	2097909-95-8	C₂₀H₁₉ClFNO₂
3-(2,3-Dihydro-1-benzofuran-5-yl)-1-(3-fluoro-4-methoxybenzoyl)pyrrolidine	3-(2,3-Dihydro-1-benzofuran-5-yl)-1-(3-fluoro-4-methoxybenzoyl)pyrrolidine	分子量：341.4 密度：N/A 沸点：N/A 熔点：N/A	2097883-36-6	C₂₀H₂₀FNO₃
1-(1-Benzothiophene-2-carbonyl)-3-(2,3-dihydro-1-benzofuran-5-yl)pyrrolidine	1-(1-Benzothiophene-2-carbonyl)-3-(2,3-dihydro-1-benzofuran-5-yl)pyrrolidine	分子量：349.4 密度：N/A 沸点：N/A 熔点：N/A	2097912-05-3	C₂₁H₁₉NO₂S
3-(2,3-Dihydro-1-benzofuran-5-yl)-1-(oxane-4-carbonyl)pyrrolidine	3-(2,3-Dihydro-1-benzofuran-5-yl)-1-(oxane-4-carbonyl)pyrrolidine	分子量：301.4 密度：N/A 沸点：N/A 熔点：N/A	2097863-07-3	C₁₈H₂₃NO₃
3-(2,3-Dihydro-1-benzofuran-5-yl)-1-(2-methoxy-4,5-dimethylbenzenesulfonyl)pyrrolidine	3-(2,3-Dihydro-1-benzofuran-5-yl)-1-(2-methoxy-4,5-dimethylbenzenesulfonyl)pyrrolidine	分子量：387.5 密度：N/A 沸点：N/A 熔点：N/A	2097918-48-2	C₂₁H₂₅NO₄S
1-{2-chloro-4H,5H,6H,7H-thieno[3,2-c]pyridin-5-yl}-2-methyl-1-oxopropan-2-yl acetate	1-{2-chloro-4H,5H,6H,7H-thieno[3,2-c]pyridin-5-yl}-2-methyl-1-oxopropan-2-yl acetate	分子量：301.79 密度：N/A 沸点：N/A 熔点：N/A	2097901-91-0	C₁₃H₁₆ClNO₃S
4-[4-({2-chloro-4H,5H,6H,7H-thieno[3,2-c]pyridin-5-yl}sulfonyl)phenyl]-2-methyl-1,3-oxazole	4-[4-({2-chloro-4H,5H,6H,7H-thieno[3,2-c]pyridin-5-yl}sulfonyl)phenyl]-2-methyl-1,3-oxazole	分子量：394.9 密度：N/A 沸点：N/A 熔点：N/A	2097917-45-6	C₁₇H₁₅ClN₂O₃S₂
1,3,5-trimethyl-N-{[1-(oxolan-3-yl)piperidin-4-yl]methyl}-1H-pyrazole-4-sulfonamide	1,3,5-trimethyl-N-{[1-(oxolan-3-yl)piperidin-4-yl]methyl}-1H-pyrazole-4-sulfonamide	分子量：356.5 密度：N/A 沸点：N/A 熔点：N/A	2097920-35-7	C₁₆H₂₈N₄O₃S
N-[(thiophen-2-yl)(thiophen-3-yl)methyl]pent-4-enamide	N-[(thiophen-2-yl)(thiophen-3-yl)methyl]pent-4-enamide	分子量：277.4 密度：N/A 沸点：N/A 熔点：N/A	2097925-05-6	C₁₄H₁₅NOS₂
3-(2-bromophenyl)-N-[(thiophen-2-yl)(thiophen-3-yl)methyl]propanamide	3-(2-bromophenyl)-N-[(thiophen-2-yl)(thiophen-3-yl)methyl]propanamide	分子量：406.4 密度：N/A 沸点：N/A 熔点：N/A	2097936-99-5	C₁₈H₁₆BrNOS₂
3,3,3-trifluoro-N-[(thiophen-2-yl)(thiophen-3-yl)methyl]propane-1-sulfonamide	3,3,3-trifluoro-N-[(thiophen-2-yl)(thiophen-3-yl)methyl]propane-1-sulfonamide	分子量：355.4 密度：N/A 沸点：N/A 熔点：N/A	2097868-44-3	C₁₂H₁₂F₃NO₂S₃
4-tert-butyl-2-oxo-N-(4,5,6,7-tetrahydro-2,1-benzoxazol-3-yl)pyrrolidine-3-carboxamide	4-tert-butyl-2-oxo-N-(4,5,6,7-tetrahydro-2,1-benzoxazol-3-yl)pyrrolidine-3-carboxamide	分子量：305.37 密度：N/A 沸点：N/A 熔点：N/A	2097920-66-4	C₁₆H₂₃N₃O₃
4-tert-butyl-2-oxo-N-phenylpyrrolidine-3-carboxamide	4-tert-butyl-2-oxo-N-phenylpyrrolidine-3-carboxamide	分子量：260.33 密度：N/A 沸点：N/A 熔点：N/A	2097916-45-3	C₁₅H₂₀N₂O₂
4-tert-butyl-N-(3-chlorophenyl)-2-oxopyrrolidine-3-carboxamide	4-tert-butyl-N-(3-chlorophenyl)-2-oxopyrrolidine-3-carboxamide	分子量：294.77 密度：N/A 沸点：N/A 熔点：N/A	2097934-50-2	C₁₅H₁₉ClN₂O₂
4-tert-butyl-N-(6-methylpyridin-2-yl)-2-oxopyrrolidine-3-carboxamide	4-tert-butyl-N-(6-methylpyridin-2-yl)-2-oxopyrrolidine-3-carboxamide	分子量：275.35 密度：N/A 沸点：N/A 熔点：N/A	2097902-70-8	C₁₅H₂₁N₃O₂
4-tert-butyl-N-(1,2-oxazol-3-yl)-2-oxopyrrolidine-3-carboxamide	4-tert-butyl-N-(1,2-oxazol-3-yl)-2-oxopyrrolidine-3-carboxamide	分子量：251.28 密度：N/A 沸点：N/A 熔点：N/A	2097868-91-0	C₁₂H₁₇N₃O₃
4-tert-butyl-N-[(2,6-difluorophenyl)methyl]-2-oxopyrrolidine-3-carboxamide	4-tert-butyl-N-[(2,6-difluorophenyl)methyl]-2-oxopyrrolidine-3-carboxamide	分子量：310.34 密度：N/A 沸点：N/A 熔点：N/A	2097920-74-4	C₁₆H₂₀F₂N₂O₂
4-tert-butyl-N-[4-(carbamoylmethyl)-1,3-thiazol-2-yl]-2-oxopyrrolidine-3-carboxamide	4-tert-butyl-N-[4-(carbamoylmethyl)-1,3-thiazol-2-yl]-2-oxopyrrolidine-3-carboxamide	分子量：324.40 密度：N/A 沸点：N/A 熔点：N/A	2097920-79-9	C₁₄H₂₀N₄O₃S
4-Tert-butyl-3-[4-(2-hydroxyphenyl)piperazine-1-carbonyl]pyrrolidin-2-one	4-Tert-butyl-3-[4-(2-hydroxyphenyl)piperazine-1-carbonyl]pyrrolidin-2-one	分子量：345.4 密度：N/A 沸点：N/A 熔点：N/A	2097895-59-3	C₁₉H₂₇N₃O₃
1-(4-Tert-butyl-2-oxopyrrolidine-3-carbonyl)-4-phenylpiperidine-4-carbonitrile	1-(4-Tert-butyl-2-oxopyrrolidine-3-carbonyl)-4-phenylpiperidine-4-carbonitrile	分子量：353.5 密度：N/A 沸点：N/A 熔点：N/A	2097894-38-5	C₂₁H₂₇N₃O₂
3-{2-Oxa-5-azabicyclo[2.2.1]heptan-5-yl}pyrazine-2-carbonitrile	3-{2-Oxa-5-azabicyclo[2.2.1]heptan-5-yl}pyrazine-2-carbonitrile	分子量：202.21 密度：N/A 沸点：N/A 熔点：N/A	1854504-78-1	C₁₀H₁₀N₄O
N,N-dimethyl-6-{2-thia-5-azabicyclo[2.2.1]heptane-5-carbonyl}pyridazin-3-amine	N,N-dimethyl-6-{2-thia-5-azabicyclo[2.2.1]heptane-5-carbonyl}pyridazin-3-amine	分子量：264.35 密度：N/A 沸点：N/A 熔点：N/A	2097861-51-1	C₁₂H₁₆N₄OS
5-[(1-methyl-1H-pyrazol-4-yl)sulfonyl]-2-thia-5-azabicyclo[2.2.1]heptane	5-[(1-methyl-1H-pyrazol-4-yl)sulfonyl]-2-thia-5-azabicyclo[2.2.1]heptane	分子量：259.4 密度：N/A 沸点：N/A 熔点：N/A	2097926-52-6	C₉H₁₃N₃O₂S₂
1-(1,3-dimethyl-1H-pyrazole-5-carbonyl)-4-{9-methyl-7H,8H,9H,10H-pyrazino[1,2-b]indazol-1-yl}piperazine	1-(1,3-dimethyl-1H-pyrazole-5-carbonyl)-4-{9-methyl-7H,8H,9H,10H-pyrazino[1,2-b]indazol-1-yl}piperazine	分子量：393.5 密度：N/A 沸点：N/A 熔点：N/A	2097921-57-6	C₂₁H₂₇N₇O
N-{1,6-dimethyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl}-1-(5,6,7,8-tetrahydroquinazolin-4-yl)piperidin-4-amine	N-{1,6-dimethyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl}-1-(5,6,7,8-tetrahydroquinazolin-4-yl)piperidin-4-amine	分子量：378.5 密度：N/A 沸点：N/A 熔点：N/A	2097926-56-0	C₂₀H₂₆N₈
N-{[3-(1-methyl-1H-pyrazol-4-yl)-1,2,4-oxadiazol-5-yl]methyl}morpholine-4-sulfonamide	N-{[3-(1-methyl-1H-pyrazol-4-yl)-1,2,4-oxadiazol-5-yl]methyl}morpholine-4-sulfonamide	分子量：328.35 密度：N/A 沸点：N/A 熔点：N/A	2097926-65-1	C₁₁H₁₆N₆O₄S
2-Methyl-4-[4-(2-methylpyrimidin-4-yl)piperazin-1-yl]-6-(trifluoromethyl)pyrimidine	2-Methyl-4-[4-(2-methylpyrimidin-4-yl)piperazin-1-yl]-6-(trifluoromethyl)pyrimidine	分子量：338.33 密度：N/A 沸点：N/A 熔点：N/A	2097937-04-5	C₁₅H₁₇F₃N₆
4-[4-(5-Bromothiophene-2-carbonyl)piperazin-1-yl]-2-methyl-6-(trifluoromethyl)pyrimidine	4-[4-(5-Bromothiophene-2-carbonyl)piperazin-1-yl]-2-methyl-6-(trifluoromethyl)pyrimidine	分子量：435.3 密度：N/A 沸点：N/A 熔点：N/A	2097903-32-5	C₁₅H₁₄BrF₃N₄OS
6-cyclobutyl-N-{1-[6-(trifluoromethyl)pyrimidin-4-yl]piperidin-4-yl}pyrimidin-4-amine	6-cyclobutyl-N-{1-[6-(trifluoromethyl)pyrimidin-4-yl]piperidin-4-yl}pyrimidin-4-amine	分子量：378.4 密度：N/A 沸点：N/A 熔点：N/A	2034466-23-2	C₁₈H₂₁F₃N₆
4-{4-[1-(4-Fluorophenyl)cyclopropanecarbonyl]piperazin-1-yl}-6-(trifluoromethyl)pyrimidine	4-{4-[1-(4-Fluorophenyl)cyclopropanecarbonyl]piperazin-1-yl}-6-(trifluoromethyl)pyrimidine	分子量：394.4 密度：N/A 沸点：N/A 熔点：N/A	2097903-35-8	C₁₉H₁₈F₄N₄O
4-(4-{[1,2,4]Triazolo[4,3-b]pyridazin-6-yl}piperazin-1-yl)-6-(trifluoromethyl)pyrimidine	4-(4-{[1,2,4]Triazolo[4,3-b]pyridazin-6-yl}piperazin-1-yl)-6-(trifluoromethyl)pyrimidine	分子量：350.30 密度：N/A 沸点：N/A 熔点：N/A	2034516-91-9	C₁₄H₁₃F₃N₈
4-(4-{3-Methyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}piperazin-1-yl)-6-(trifluoromethyl)pyrimidine	4-(4-{3-Methyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}piperazin-1-yl)-6-(trifluoromethyl)pyrimidine	分子量：364.33 密度：N/A 沸点：N/A 熔点：N/A	2097869-03-7	C₁₅H₁₅F₃N₈
4-{4-[(2,5-Difluorophenyl)methyl]piperazin-1-yl}-6-(trifluoromethyl)pyrimidine	4-{4-[(2,5-Difluorophenyl)methyl]piperazin-1-yl}-6-(trifluoromethyl)pyrimidine	分子量：358.31 密度：N/A 沸点：N/A 熔点：N/A	2097857-19-5	C₁₆H₁₅F₅N₄
4-Methoxy-2-{4-[6-(trifluoromethyl)pyrimidin-4-yl]piperazin-1-yl}pyrimidine	4-Methoxy-2-{4-[6-(trifluoromethyl)pyrimidin-4-yl]piperazin-1-yl}pyrimidine	分子量：340.30 密度：N/A 沸点：N/A 熔点：N/A	2034466-65-2	C₁₄H₁₅F₃N₆O
4-(4-{3-Methyl-[1,2,4]triazolo[4,3-a]pyrazin-8-yl}piperazin-1-yl)-6-(trifluoromethyl)pyrimidine	4-(4-{3-Methyl-[1,2,4]triazolo[4,3-a]pyrazin-8-yl}piperazin-1-yl)-6-(trifluoromethyl)pyrimidine	分子量：364.33 密度：N/A 沸点：N/A 熔点：N/A	2034517-30-9	C₁₅H₁₅F₃N₈
N-[1-(5,6,7,8-tetrahydrocinnolin-3-yl)piperidin-4-yl]pyrimidin-2-amine	N-[1-(5,6,7,8-tetrahydrocinnolin-3-yl)piperidin-4-yl]pyrimidin-2-amine	分子量：310.4 密度：N/A 沸点：N/A 熔点：N/A	2097901-85-2	C₁₇H₂₂N₆
N-{[6-(trifluoromethyl)-5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyridin-3-yl]methyl}-5,6,7,8-tetrahydroquinazolin-4-amine	N-{[6-(trifluoromethyl)-5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyridin-3-yl]methyl}-5,6,7,8-tetrahydroquinazolin-4-amine	分子量：352.36 密度：N/A 沸点：N/A 熔点：N/A	2097921-09-8	C₁₆H₁₉F₃N₆
N-[2-(4-oxo-3,4-dihydro-1,2,3-benzotriazin-3-yl)ethyl]-2,3-dihydro-1,4-benzodioxine-6-sulfonamide	N-[2-(4-oxo-3,4-dihydro-1,2,3-benzotriazin-3-yl)ethyl]-2,3-dihydro-1,4-benzodioxine-6-sulfonamide	分子量：388.4 密度：N/A 沸点：N/A 熔点：N/A	2097926-90-2	C₁₇H₁₆N₄O₅S
N-[2-(7-chloro-3-oxo-2,3,4,5-tetrahydro-1,4-benzoxazepin-4-yl)ethyl]-1-methylpiperidine-3-carboxamide	N-[2-(7-chloro-3-oxo-2,3,4,5-tetrahydro-1,4-benzoxazepin-4-yl)ethyl]-1-methylpiperidine-3-carboxamide	分子量：365.9 密度：N/A 沸点：N/A 熔点：N/A	2034332-19-7	C₁₈H₂₄ClN₃O₃
3-cyano-N-[(oxan-4-yl)(thiophen-2-yl)methyl]benzamide	3-cyano-N-[(oxan-4-yl)(thiophen-2-yl)methyl]benzamide	分子量：326.4 密度：N/A 沸点：N/A 熔点：N/A	2097871-98-0	C₁₈H₁₈N₂O₂S
4-(dimethylamino)-N-[(oxan-4-yl)(thiophen-2-yl)methyl]benzamide	4-(dimethylamino)-N-[(oxan-4-yl)(thiophen-2-yl)methyl]benzamide	分子量：344.5 密度：N/A 沸点：N/A 熔点：N/A	2097912-42-8	C₁₉H₂₄N₂O₂S
Methyl 4-{[(oxan-4-yl)(thiophen-2-yl)methyl]carbamoyl}benzoate	Methyl 4-{[(oxan-4-yl)(thiophen-2-yl)methyl]carbamoyl}benzoate	分子量：359.4 密度：N/A 沸点：N/A 熔点：N/A	2097869-21-9	C₁₉H₂₁NO₄S
N-[(oxan-4-yl)(thiophen-2-yl)methyl]-1,3-thiazole-4-carboxamide	N-[(oxan-4-yl)(thiophen-2-yl)methyl]-1,3-thiazole-4-carboxamide	分子量：308.4 密度：N/A 沸点：N/A 熔点：N/A	2097858-92-7	C₁₄H₁₆N₂O₂S₂
3-({5-Methyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl}oxy)-1-(thiophene-3-carbonyl)azetidine	3-({5-Methyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl}oxy)-1-(thiophene-3-carbonyl)azetidine	分子量：315.35 密度：N/A 沸点：N/A 熔点：N/A	2097869-41-3	C₁₄H₁₃N₅O₂S
4-Methyl-5-[3-({5-methyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl}oxy)azetidine-1-carbonyl]-1,2,3-thiadiazole	4-Methyl-5-[3-({5-methyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl}oxy)azetidine-1-carbonyl]-1,2,3-thiadiazole	分子量：331.36 密度：N/A 沸点：N/A 熔点：N/A	2097858-97-2	C₁₃H₁₃N₇O₂S
1-(2,3-Dihydro-1,4-benzodioxine-2-carbonyl)-3-({5-methyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl}oxy)azetidine	1-(2,3-Dihydro-1,4-benzodioxine-2-carbonyl)-3-({5-methyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl}oxy)azetidine	分子量：367.4 密度：N/A 沸点：N/A 熔点：N/A	2097897-19-1	C₁₈H₁₇N₅O₄
1-(7-Methoxy-1-benzofuran-2-carbonyl)-3-({5-methyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl}oxy)azetidine	1-(7-Methoxy-1-benzofuran-2-carbonyl)-3-({5-methyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl}oxy)azetidine	分子量：379.4 密度：N/A 沸点：N/A 熔点：N/A	2097923-11-8	C₁₉H₁₇N₅O₄
2-[(2,2-Dimethyl-2,3-dihydro-1-benzofuran-7-yl)oxy]-1-[3-({5-methyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl}oxy)azetidin-1-yl]ethan-1-one	2-[(2,2-Dimethyl-2,3-dihydro-1-benzofuran-7-yl)oxy]-1-[3-({5-methyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl}oxy)azetidin-1-yl]ethan-1-one	分子量：409.4 密度：N/A 沸点：N/A 熔点：N/A	2097921-23-6	C₂₁H₂₃N₅O₄