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
6-(difluoromethyl)-2-methyl-N-[2-(trifluoromethyl)phenyl]pyrimidine-4-carboxamide	6-(difluoromethyl)-2-methyl-N-[2-(trifluoromethyl)phenyl]pyrimidine-4-carboxamide	分子量：331.24 密度：N/A 沸点：N/A 熔点：N/A	2877765-06-3	C₁₄H₁₀F₅N₃O
4-[1-(5-Bromo-4-methoxypyrimidin-2-yl)pyrrolidine-3-carbonyl]morpholine	4-[1-(5-Bromo-4-methoxypyrimidin-2-yl)pyrrolidine-3-carbonyl]morpholine	分子量：371.23 密度：N/A 沸点：N/A 熔点：N/A	2877652-78-1	C₁₄H₁₉BrN₄O₃
6-(difluoromethyl)-2-methyl-N-(2-methylphenyl)pyrimidine-4-carboxamide	6-(difluoromethyl)-2-methyl-N-(2-methylphenyl)pyrimidine-4-carboxamide	分子量：277.27 密度：N/A 沸点：N/A 熔点：N/A	2877656-09-0	C₁₄H₁₃F₂N₃O
N-{[4-fluoro-1-(4-methoxypyrimidin-2-yl)piperidin-4-yl]methyl}oxolane-3-carboxamide	N-{[4-fluoro-1-(4-methoxypyrimidin-2-yl)piperidin-4-yl]methyl}oxolane-3-carboxamide	分子量：338.38 密度：N/A 沸点：N/A 熔点：N/A	2877664-87-2	C₁₆H₂₃FN₄O₃
N-{[4-fluoro-1-(6-methoxypyrimidin-4-yl)piperidin-4-yl]methyl}oxolane-3-carboxamide	N-{[4-fluoro-1-(6-methoxypyrimidin-4-yl)piperidin-4-yl]methyl}oxolane-3-carboxamide	分子量：338.38 密度：N/A 沸点：N/A 熔点：N/A	2877765-10-9	C₁₆H₂₃FN₄O₃
2-{3-[(Dimethylamino)methyl]phenyl}-1,1-difluoropropan-2-amine	2-{3-[(Dimethylamino)methyl]phenyl}-1,1-difluoropropan-2-amine	分子量：228.28 密度：N/A 沸点：N/A 熔点：N/A	2229160-21-6	C₁₂H₁₈F₂N₂
4-(Difluoromethyl)-6-[4-(2,3-dimethylphenyl)piperazine-1-carbonyl]-2-methylpyrimidine	4-(Difluoromethyl)-6-[4-(2,3-dimethylphenyl)piperazine-1-carbonyl]-2-methylpyrimidine	分子量：360.4 密度：N/A 沸点：N/A 熔点：N/A	2877651-69-7	C₁₉H₂₂F₂N₄O
9-(2-methoxyethyl)-6-[3-(trifluoromethyl)azetidin-1-yl]-9H-purine	9-(2-methoxyethyl)-6-[3-(trifluoromethyl)azetidin-1-yl]-9H-purine	分子量：301.27 密度：N/A 沸点：N/A 熔点：N/A	2877765-14-3	C₁₂H₁₄F₃N₅O
5-{4-[3-(2-Methoxyethyl)-2,4-dioxoimidazolidin-1-yl]piperidin-1-yl}pyridine-2-carbonitrile	5-{4-[3-(2-Methoxyethyl)-2,4-dioxoimidazolidin-1-yl]piperidin-1-yl}pyridine-2-carbonitrile	分子量：343.4 密度：N/A 沸点：N/A 熔点：N/A	2877656-10-3	C₁₇H₂₁N₅O₃
2-[1-(4,6-difluoro-1,3-benzothiazol-2-yl)piperidin-4-yl]-N-(oxan-4-yl)acetamide	2-[1-(4,6-difluoro-1,3-benzothiazol-2-yl)piperidin-4-yl]-N-(oxan-4-yl)acetamide	分子量：395.5 密度：N/A 沸点：N/A 熔点：N/A	2877651-70-0	C₁₉H₂₃F₂N₃O₂S
1-[3-Bromo-5-(trifluoromethyl)pyridin-2-yl]-4-cyclopropanecarbonyl-1,4-diazepane	1-[3-Bromo-5-(trifluoromethyl)pyridin-2-yl]-4-cyclopropanecarbonyl-1,4-diazepane	分子量：392.21 密度：N/A 沸点：N/A 熔点：N/A	2877656-14-7	C₁₅H₁₇BrF₃N₃O
1-[5-Bromo-3-(trifluoromethyl)pyridin-2-yl]-4-cyclopropanecarbonyl-1,4-diazepane	1-[5-Bromo-3-(trifluoromethyl)pyridin-2-yl]-4-cyclopropanecarbonyl-1,4-diazepane	分子量：392.21 密度：N/A 沸点：N/A 熔点：N/A	2877666-69-6	C₁₅H₁₇BrF₃N₃O
N-[(4-fluoro-1-{[5-(propan-2-yl)-1,3-oxazol-4-yl]methyl}piperidin-4-yl)methyl]cyclopropanecarboxamide	N-[(4-fluoro-1-{[5-(propan-2-yl)-1,3-oxazol-4-yl]methyl}piperidin-4-yl)methyl]cyclopropanecarboxamide	分子量：323.4 密度：N/A 沸点：N/A 熔点：N/A	2877722-14-8	C₁₇H₂₆FN₃O₂
N-({1-[(5-cyclopropyl-1,2-oxazol-3-yl)methyl]-4-fluoropiperidin-4-yl}methyl)cyclopropanecarboxamide	N-({1-[(5-cyclopropyl-1,2-oxazol-3-yl)methyl]-4-fluoropiperidin-4-yl}methyl)cyclopropanecarboxamide	分子量：321.4 密度：N/A 沸点：N/A 熔点：N/A	2877649-17-5	C₁₇H₂₄FN₃O₂
N-tert-butyl-1-[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]piperidine-3-carboxamide	N-tert-butyl-1-[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]piperidine-3-carboxamide	分子量：333.5 密度：N/A 沸点：N/A 熔点：N/A	2877765-85-8	C₁₉H₃₁N₃O₂
2-[3-(pyridin-2-yl)pyrrolidin-1-yl]-5H,7H,8H-pyrano[4,3-b]pyridine-3-carbonitrile	2-[3-(pyridin-2-yl)pyrrolidin-1-yl]-5H,7H,8H-pyrano[4,3-b]pyridine-3-carbonitrile	分子量：306.4 密度：N/A 沸点：N/A 熔点：N/A	2877685-40-8	C₁₈H₁₈N₄O
N-methyl-N-(1-{3-methyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}piperidin-3-yl)methanesulfonamide	N-methyl-N-(1-{3-methyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}piperidin-3-yl)methanesulfonamide	分子量：324.40 密度：N/A 沸点：N/A 熔点：N/A	2877710-42-2	C₁₃H₂₀N₆O₂S
3-[(4-Fluorophenyl)methyl]-7-oxa-1,3-diazaspiro[4.4]nonane-2,4-dione	3-[(4-Fluorophenyl)methyl]-7-oxa-1,3-diazaspiro[4.4]nonane-2,4-dione	分子量：264.25 密度：N/A 沸点：N/A 熔点：N/A	2877722-18-2	C₁₃H₁₃FN₂O₃
3-[(2-Chloro-6-fluorophenyl)methyl]-7-oxa-1,3-diazaspiro[4.4]nonane-2,4-dione	3-[(2-Chloro-6-fluorophenyl)methyl]-7-oxa-1,3-diazaspiro[4.4]nonane-2,4-dione	分子量：298.70 密度：N/A 沸点：N/A 熔点：N/A	2877765-94-9	C₁₃H₁₂ClFN₂O₃
1-(2,2,3,3,3-Pentafluoropropyl)cyclopropane-1-carbaldehyde	1-(2,2,3,3,3-Pentafluoropropyl)cyclopropane-1-carbaldehyde	分子量：202.12 密度：N/A 沸点：N/A 熔点：N/A	2172480-05-4	C₇H₇F₅O
2-[1-(4-chloro-1,3-benzothiazol-2-yl)piperidin-4-yl]-N-(oxan-4-yl)acetamide	2-[1-(4-chloro-1,3-benzothiazol-2-yl)piperidin-4-yl]-N-(oxan-4-yl)acetamide	分子量：393.9 密度：N/A 沸点：N/A 熔点：N/A	2877653-35-3	C₁₉H₂₄ClN₃O₂S
N-({4-fluoro-1-[2-(2H-1,2,3-triazol-2-yl)ethyl]piperidin-4-yl}methyl)cyclopropanecarboxamide	N-({4-fluoro-1-[2-(2H-1,2,3-triazol-2-yl)ethyl]piperidin-4-yl}methyl)cyclopropanecarboxamide	分子量：295.36 密度：N/A 沸点：N/A 熔点：N/A	2877656-18-1	C₁₄H₂₂FN₅O
N-({4-fluoro-1-[3-(methoxymethyl)-1,2,4-thiadiazol-5-yl]piperidin-4-yl}methyl)cyclopropanecarboxamide	N-({4-fluoro-1-[3-(methoxymethyl)-1,2,4-thiadiazol-5-yl]piperidin-4-yl}methyl)cyclopropanecarboxamide	分子量：328.41 密度：N/A 沸点：N/A 熔点：N/A	2877685-56-6	C₁₄H₂₁FN₄O₂S
N-{1-[(2,5-dimethylphenyl)methyl]piperidin-4-yl}pyrimidin-4-amine	N-{1-[(2,5-dimethylphenyl)methyl]piperidin-4-yl}pyrimidin-4-amine	分子量：296.4 密度：N/A 沸点：N/A 熔点：N/A	2877649-46-0	C₁₈H₂₄N₄
N-({4-fluoro-1-[3-fluoro-5-(trifluoromethyl)pyridin-2-yl]piperidin-4-yl}methyl)-2,2-dimethylpropanamide	N-({4-fluoro-1-[3-fluoro-5-(trifluoromethyl)pyridin-2-yl]piperidin-4-yl}methyl)-2,2-dimethylpropanamide	分子量：379.37 密度：N/A 沸点：N/A 熔点：N/A	2877660-14-3	C₁₇H₂₂F₅N₃O
N-(oxan-4-yl)-2-(1-{1H-pyrazolo[3,4-d]pyrimidin-4-yl}piperidin-4-yl)acetamide	N-(oxan-4-yl)-2-(1-{1H-pyrazolo[3,4-d]pyrimidin-4-yl}piperidin-4-yl)acetamide	分子量：344.4 密度：N/A 沸点：N/A 熔点：N/A	2877671-75-3	C₁₇H₂₄N₆O₂
N-({4-fluoro-1-[2-oxo-1-(2,2,2-trifluoroethyl)pyrrolidin-3-yl]piperidin-4-yl}methyl)-2,2-dimethylpropanamide	N-({4-fluoro-1-[2-oxo-1-(2,2,2-trifluoroethyl)pyrrolidin-3-yl]piperidin-4-yl}methyl)-2,2-dimethylpropanamide	分子量：381.4 密度：N/A 沸点：N/A 熔点：N/A	2877628-20-9	C₁₇H₂₇F₄N₃O₂
4-{1-[5-Bromo-3-(trifluoromethyl)pyridin-2-yl]piperidine-4-carbonyl}morpholine	4-{1-[5-Bromo-3-(trifluoromethyl)pyridin-2-yl]piperidine-4-carbonyl}morpholine	分子量：422.24 密度：N/A 沸点：N/A 熔点：N/A	2877667-57-5	C₁₆H₁₉BrF₃N₃O₂
N-({4-fluoro-1-[2-(2H-1,2,3-triazol-2-yl)ethyl]piperidin-4-yl}methyl)oxolane-3-carboxamide	N-({4-fluoro-1-[2-(2H-1,2,3-triazol-2-yl)ethyl]piperidin-4-yl}methyl)oxolane-3-carboxamide	分子量：325.38 密度：N/A 沸点：N/A 熔点：N/A	2877766-02-2	C₁₅H₂₄FN₅O₂
N-({4-fluoro-1-[2-(1H-1,2,3-triazol-1-yl)ethyl]piperidin-4-yl}methyl)oxolane-3-carboxamide	N-({4-fluoro-1-[2-(1H-1,2,3-triazol-1-yl)ethyl]piperidin-4-yl}methyl)oxolane-3-carboxamide	分子量：325.38 密度：N/A 沸点：N/A 熔点：N/A	2877660-23-4	C₁₅H₂₄FN₅O₂
1-(Cyclopropanesulfonyl)-4-[2-(trifluoromethyl)imidazo[1,2-a]pyrazin-8-yl]piperazine	1-(Cyclopropanesulfonyl)-4-[2-(trifluoromethyl)imidazo[1,2-a]pyrazin-8-yl]piperazine	分子量：375.37 密度：N/A 沸点：N/A 熔点：N/A	2877765-45-0	C₁₄H₁₆F₃N₅O₂S
3-Chloro-2-[3-(4,4-difluoropiperidine-1-carbonyl)pyrrolidin-1-yl]-5-(trifluoromethyl)pyridine	3-Chloro-2-[3-(4,4-difluoropiperidine-1-carbonyl)pyrrolidin-1-yl]-5-(trifluoromethyl)pyridine	分子量：397.77 密度：N/A 沸点：N/A 熔点：N/A	2877667-67-7	C₁₆H₁₇ClF₅N₃O
9-ethyl-6-(octahydro-1H-isoindol-2-yl)-9H-purine	9-ethyl-6-(octahydro-1H-isoindol-2-yl)-9H-purine	分子量：271.36 密度：N/A 沸点：N/A 熔点：N/A	2877668-79-4	C₁₅H₂₁N₅
2-[(1-{[(9H-fluoren-9-yl)methoxy]carbonyl}piperidin-3-yl)methyl]-1,3-thiazole-4-carboxylic acid	2-[(1-{[(9H-fluoren-9-yl)methoxy]carbonyl}piperidin-3-yl)methyl]-1,3-thiazole-4-carboxylic acid	分子量：448.5 密度：N/A 沸点：N/A 熔点：N/A	2386410-68-8	C₂₅H₂₄N₂O₄S
2-{4-[(5-Bromopyridin-3-yl)methyl]piperazin-1-yl}-5-methylpyrimidine	2-{4-[(5-Bromopyridin-3-yl)methyl]piperazin-1-yl}-5-methylpyrimidine	分子量：348.24 密度：N/A 沸点：N/A 熔点：N/A	2877668-83-0	C₁₅H₁₈BrN₅
2-(3-Tert-butylphenyl)ethanimidamide	2-(3-Tert-butylphenyl)ethanimidamide	分子量：190.28 密度：N/A 沸点：N/A 熔点：N/A	2228205-59-0	C₁₂H₁₈N₂
6-methyl-N-{1-[(3-methylphenyl)methyl]piperidin-4-yl}pyrimidin-4-amine	6-methyl-N-{1-[(3-methylphenyl)methyl]piperidin-4-yl}pyrimidin-4-amine	分子量：296.4 密度：N/A 沸点：N/A 熔点：N/A	2877667-78-0	C₁₈H₂₄N₄
4-Chloro-2-fluoro-3-(methoxymethoxy)benzoic acid	4-Chloro-2-fluoro-3-(methoxymethoxy)benzoic acid	分子量：234.61 密度：N/A 沸点：N/A 熔点：N/A	2755723-76-1	C₉H₈ClFO₄
1',4'-Dichloro-7',8'-dihydro-5'H-spiro[oxetane-3,6'-phthalazine]	1',4'-Dichloro-7',8'-dihydro-5'H-spiro[oxetane-3,6'-phthalazine]	分子量：245.10 密度：N/A 沸点：N/A 熔点：N/A	2893971-41-8	C₁₀H₁₀Cl₂N₂O
N-(1,1-dioxothiolan-3-yl)-9-ethylpurin-6-amine	N-(1,1-dioxothiolan-3-yl)-9-ethylpurin-6-amine	分子量：281.34 密度：N/A 沸点：N/A 熔点：N/A	2877651-07-3	C₁₁H₁₅N₅O₂S
(3S,3aR,4aS,5aR,5bR)-3-Fluoro-2-(5-methyl-2-oxo-4-(1H-1,2,4-triazol-1-yl)pyrimidin-1(2H)-yl)octahydrocyclopropa[4,5]cyclopenta[1,2-b]furan-3a,5a-diyl diacetate	(3S,3aR,4aS,5aR,5bR)-3-Fluoro-2-(5-methyl-2-oxo-4-(1H-1,2,4-triazol-1-yl)pyrimidin-1(2H)-yl)octahydrocyclopropa[4,5]cyclopenta[1,2-b]furan-3a,5a-diyl diacetate	分子量：433.4 密度：N/A 沸点：N/A 熔点：N/A	2102535-54-4	C₁₉H₂₀FN₅O₆
6-(difluoromethyl)-N-(2-methoxy-5-methylphenyl)-2-methylpyrimidine-4-carboxamide	6-(difluoromethyl)-N-(2-methoxy-5-methylphenyl)-2-methylpyrimidine-4-carboxamide	分子量：307.29 密度：N/A 沸点：N/A 熔点：N/A	2877654-05-0	C₁₅H₁₅F₂N₃O₂
4-[4-(But-2-yn-1-yl)piperazin-1-yl]-2-methyl-6-(piperidin-1-yl)pyrimidine	4-[4-(But-2-yn-1-yl)piperazin-1-yl]-2-methyl-6-(piperidin-1-yl)pyrimidine	分子量：313.4 密度：N/A 沸点：N/A 熔点：N/A	2877642-66-3	C₁₈H₂₇N₅
2-{1-[(5-Cyclopropyl-1,2-oxazol-3-yl)methyl]pyrrolidin-3-yl}pyridine	2-{1-[(5-Cyclopropyl-1,2-oxazol-3-yl)methyl]pyrrolidin-3-yl}pyridine	分子量：269.34 密度：N/A 沸点：N/A 熔点：N/A	2877766-06-6	C₁₆H₁₉N₃O
N-(5-{4-[(1-methyl-2-oxo-1,2-dihydropyridin-4-yl)methyl]piperazin-1-yl}pyridin-2-yl)cyclopropanecarboxamide	N-(5-{4-[(1-methyl-2-oxo-1,2-dihydropyridin-4-yl)methyl]piperazin-1-yl}pyridin-2-yl)cyclopropanecarboxamide	分子量：367.4 密度：N/A 沸点：N/A 熔点：N/A	2877660-26-7	C₂₀H₂₅N₅O₂
6-(difluoromethyl)-N-(2,3-dimethylphenyl)-2-methylpyrimidine-4-carboxamide	6-(difluoromethyl)-N-(2,3-dimethylphenyl)-2-methylpyrimidine-4-carboxamide	分子量：291.30 密度：N/A 沸点：N/A 熔点：N/A	2877642-17-4	C₁₅H₁₅F₂N₃O
4-(1-{2,5-Dimethylpyrazolo[1,5-a]pyrimidin-7-yl}piperidine-4-carbonyl)morpholine	4-(1-{2,5-Dimethylpyrazolo[1,5-a]pyrimidin-7-yl}piperidine-4-carbonyl)morpholine	分子量：343.4 密度：N/A 沸点：N/A 熔点：N/A	2877671-93-5	C₁₈H₂₅N₅O₂
N-[(4-fluoro-1-{[1,2,4]triazolo[4,3-b]pyridazin-6-yl}piperidin-4-yl)methyl]-2,2-dimethylpropanamide	N-[(4-fluoro-1-{[1,2,4]triazolo[4,3-b]pyridazin-6-yl}piperidin-4-yl)methyl]-2,2-dimethylpropanamide	分子量：334.39 密度：N/A 沸点：N/A 熔点：N/A	2877656-81-8	C₁₆H₂₃FN₆O
N-[(4-fluoro-1-{2-methylpyrazolo[1,5-a]pyrazin-4-yl}piperidin-4-yl)methyl]-2,2-dimethylpropanamide	N-[(4-fluoro-1-{2-methylpyrazolo[1,5-a]pyrazin-4-yl}piperidin-4-yl)methyl]-2,2-dimethylpropanamide	分子量：347.4 密度：N/A 沸点：N/A 熔点：N/A	2877656-84-1	C₁₈H₂₆FN₅O
N-[(4-fluoro-1-{5-methylpyrazolo[1,5-a]pyrimidin-7-yl}piperidin-4-yl)methyl]-2,2-dimethylpropanamide	N-[(4-fluoro-1-{5-methylpyrazolo[1,5-a]pyrimidin-7-yl}piperidin-4-yl)methyl]-2,2-dimethylpropanamide	分子量：347.4 密度：N/A 沸点：N/A 熔点：N/A	2877708-20-6	C₁₈H₂₆FN₅O