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
2-[2-(Azepan-1-yl)ethyl]-6-tert-butyl-2,3-dihydropyridazin-3-one	2-[2-(Azepan-1-yl)ethyl]-6-tert-butyl-2,3-dihydropyridazin-3-one	分子量：277.40 密度：N/A 沸点：N/A 熔点：N/A	2199604-23-2	C₁₆H₂₇N₃O
6-Cyclopropyl-2-(2-hydroxyethyl)-2,3-dihydropyridazin-3-one	6-Cyclopropyl-2-(2-hydroxyethyl)-2,3-dihydropyridazin-3-one	分子量：180.20 密度：N/A 沸点：N/A 熔点：N/A	1864608-32-1	C₉H₁₂N₂O₂
6-Cyclopropyl-2-[(2-methyl-1,3-thiazol-4-yl)methyl]-2,3-dihydropyridazin-3-one	6-Cyclopropyl-2-[(2-methyl-1,3-thiazol-4-yl)methyl]-2,3-dihydropyridazin-3-one	分子量：247.32 密度：N/A 沸点：N/A 熔点：N/A	2195883-15-7	C₁₂H₁₃N₃OS
6-Cyclopropyl-2-(2-methylprop-2-en-1-yl)-2,3-dihydropyridazin-3-one	6-Cyclopropyl-2-(2-methylprop-2-en-1-yl)-2,3-dihydropyridazin-3-one	分子量：190.24 密度：N/A 沸点：N/A 熔点：N/A	2167342-37-0	C₁₁H₁₄N₂O
6-Cyclopropyl-2-[(pyridin-4-yl)methyl]-2,3-dihydropyridazin-3-one	6-Cyclopropyl-2-[(pyridin-4-yl)methyl]-2,3-dihydropyridazin-3-one	分子量：227.26 密度：N/A 沸点：N/A 熔点：N/A	2197637-89-9	C₁₃H₁₃N₃O
6-Cyclopropyl-2-(propan-2-yl)-2,3-dihydropyridazin-3-one	6-Cyclopropyl-2-(propan-2-yl)-2,3-dihydropyridazin-3-one	分子量：178.23 密度：N/A 沸点：N/A 熔点：N/A	2197892-49-0	C₁₀H₁₄N₂O
6-Cyclopropyl-2-(cyclopropylmethyl)-2,3-dihydropyridazin-3-one	6-Cyclopropyl-2-(cyclopropylmethyl)-2,3-dihydropyridazin-3-one	分子量：190.24 密度：N/A 沸点：N/A 熔点：N/A	2196212-10-7	C₁₁H₁₄N₂O
6-Cyclopropyl-2-(2,2,2-trifluoroethyl)-2,3-dihydropyridazin-3-one	6-Cyclopropyl-2-(2,2,2-trifluoroethyl)-2,3-dihydropyridazin-3-one	分子量：218.18 密度：N/A 沸点：N/A 熔点：N/A	2201616-56-8	C₉H₉F₃N₂O
2-[(Azetidin-3-yl)methyl]-6-cyclopropyl-2,3-dihydropyridazin-3-one	2-[(Azetidin-3-yl)methyl]-6-cyclopropyl-2,3-dihydropyridazin-3-one	分子量：205.26 密度：N/A 沸点：N/A 熔点：N/A	2199902-13-9	C₁₁H₁₅N₃O
2-[(2-methyl-1,3-thiazol-4-yl)methyl]-2H,3H,5H,6H,7H-cyclopenta[c]pyridazin-3-one	2-[(2-methyl-1,3-thiazol-4-yl)methyl]-2H,3H,5H,6H,7H-cyclopenta[c]pyridazin-3-one	分子量：247.32 密度：N/A 沸点：N/A 熔点：N/A	2200034-21-3	C₁₂H₁₃N₃OS
2-(but-3-en-1-yl)-2H,3H,5H,6H,7H-cyclopenta[c]pyridazin-3-one	2-(but-3-en-1-yl)-2H,3H,5H,6H,7H-cyclopenta[c]pyridazin-3-one	分子量：190.24 密度：N/A 沸点：N/A 熔点：N/A	2168965-66-8	C₁₁H₁₄N₂O
1-methyl-4-({3-oxo-2H,3H,5H,6H,7H-cyclopenta[c]pyridazin-2-yl}methyl)pyrrolidin-2-one	1-methyl-4-({3-oxo-2H,3H,5H,6H,7H-cyclopenta[c]pyridazin-2-yl}methyl)pyrrolidin-2-one	分子量：247.29 密度：N/A 沸点：N/A 熔点：N/A	2197599-39-4	C₁₃H₁₇N₃O₂
2-(2-Hydroxyethyl)-2,3,5,6,7,8-hexahydrocinnolin-3-one	2-(2-Hydroxyethyl)-2,3,5,6,7,8-hexahydrocinnolin-3-one	分子量：194.23 密度：N/A 沸点：N/A 熔点：N/A	177207-89-5	C₁₀H₁₄N₂O₂
2-[(2,4-Dimethyl-1,3-thiazol-5-yl)methyl]-2,3,5,6,7,8-hexahydrocinnolin-3-one	2-[(2,4-Dimethyl-1,3-thiazol-5-yl)methyl]-2,3,5,6,7,8-hexahydrocinnolin-3-one	分子量：275.37 密度：N/A 沸点：N/A 熔点：N/A	2196212-06-1	C₁₄H₁₇N₃OS
2-(2-Methylprop-2-en-1-yl)-2,3,5,6,7,8-hexahydrocinnolin-3-one	2-(2-Methylprop-2-en-1-yl)-2,3,5,6,7,8-hexahydrocinnolin-3-one	分子量：204.27 密度：N/A 沸点：N/A 熔点：N/A	2169377-26-6	C₁₂H₁₆N₂O
6-Methyl-2-[2-(piperidin-1-yl)ethyl]-2,3,5,6,7,8-hexahydrocinnolin-3-one	6-Methyl-2-[2-(piperidin-1-yl)ethyl]-2,3,5,6,7,8-hexahydrocinnolin-3-one	分子量：275.39 密度：N/A 沸点：N/A 熔点：N/A	2197522-82-8	C₁₆H₂₅N₃O
6-methyl-2-[2-(1H-pyrazol-1-yl)ethyl]-2,3,5,6,7,8-hexahydrocinnolin-3-one	6-methyl-2-[2-(1H-pyrazol-1-yl)ethyl]-2,3,5,6,7,8-hexahydrocinnolin-3-one	分子量：258.32 密度：N/A 沸点：N/A 熔点：N/A	2201692-15-9	C₁₄H₁₈N₄O
2-[2-(pyrrolidin-1-yl)ethyl]-2H,3H,5H,7H,8H-pyrano[4,3-c]pyridazin-3-one	2-[2-(pyrrolidin-1-yl)ethyl]-2H,3H,5H,7H,8H-pyrano[4,3-c]pyridazin-3-one	分子量：249.31 密度：N/A 沸点：N/A 熔点：N/A	2189368-08-7	C₁₃H₁₉N₃O₂
2-(but-2-yn-1-yl)-2H,3H,5H,7H,8H-pyrano[4,3-c]pyridazin-3-one	2-(but-2-yn-1-yl)-2H,3H,5H,7H,8H-pyrano[4,3-c]pyridazin-3-one	分子量：204.22 密度：N/A 沸点：N/A 熔点：N/A	2168800-19-7	C₁₁H₁₂N₂O₂
2-(2,2,2-trifluoroethyl)-2H,3H,5H,7H,8H-pyrano[4,3-c]pyridazin-3-one	2-(2,2,2-trifluoroethyl)-2H,3H,5H,7H,8H-pyrano[4,3-c]pyridazin-3-one	分子量：234.17 密度：N/A 沸点：N/A 熔点：N/A	2199384-69-3	C₉H₉F₃N₂O₂
3-(Azetidin-3-yl)-3,4-dihydropyrimidin-4-one	3-(Azetidin-3-yl)-3,4-dihydropyrimidin-4-one	分子量：151.17 密度：N/A 沸点：N/A 熔点：N/A	2200108-20-7	C₇H₉N₃O
3-(But-2-yn-1-yl)-6-methyl-3,4-dihydropyrimidin-4-one	3-(But-2-yn-1-yl)-6-methyl-3,4-dihydropyrimidin-4-one	分子量：162.19 密度：N/A 沸点：N/A 熔点：N/A	1878351-94-0	C₉H₁₀N₂O
3-(Cyclopropylmethyl)-6-methyl-3,4-dihydropyrimidin-4-one	3-(Cyclopropylmethyl)-6-methyl-3,4-dihydropyrimidin-4-one	分子量：164.20 密度：N/A 沸点：N/A 熔点：N/A	1864067-41-3	C₉H₁₂N₂O
3-(Cyclohexylmethyl)-6-methyl-3,4-dihydropyrimidin-4-one	3-(Cyclohexylmethyl)-6-methyl-3,4-dihydropyrimidin-4-one	分子量：206.28 密度：N/A 沸点：N/A 熔点：N/A	2199589-26-7	C₁₂H₁₈N₂O
3-(Cyclobutylmethyl)-6-methyl-3,4-dihydropyrimidin-4-one	3-(Cyclobutylmethyl)-6-methyl-3,4-dihydropyrimidin-4-one	分子量：178.23 密度：N/A 沸点：N/A 熔点：N/A	1856265-29-6	C₁₀H₁₄N₂O
N-(2-fluorocyclopentyl)-1H-indole-2-carboxamide	N-(2-fluorocyclopentyl)-1H-indole-2-carboxamide	分子量：246.28 密度：N/A 沸点：N/A 熔点：N/A	2202251-00-9	C₁₄H₁₅FN₂O
N-(2-fluorocyclopentyl)-1-methyl-2-oxo-1,2-dihydropyridine-3-carboxamide	N-(2-fluorocyclopentyl)-1-methyl-2-oxo-1,2-dihydropyridine-3-carboxamide	分子量：238.26 密度：N/A 沸点：N/A 熔点：N/A	2201244-18-8	C₁₂H₁₅FN₂O₂
N-(2-fluorocyclopentyl)-7-methoxy-1-benzofuran-2-carboxamide	N-(2-fluorocyclopentyl)-7-methoxy-1-benzofuran-2-carboxamide	分子量：277.29 密度：N/A 沸点：N/A 熔点：N/A	2202461-67-2	C₁₅H₁₆FNO₃
N-(2-fluorocyclopentyl)-1-benzofuran-2-carboxamide	N-(2-fluorocyclopentyl)-1-benzofuran-2-carboxamide	分子量：247.26 密度：N/A 沸点：N/A 熔点：N/A	2202461-26-3	C₁₄H₁₄FNO₂
N-(2-fluorocyclopentyl)pyrazine-2-carboxamide	N-(2-fluorocyclopentyl)pyrazine-2-carboxamide	分子量：209.22 密度：N/A 沸点：N/A 熔点：N/A	2199835-10-2	C₁₀H₁₂FN₃O
N-(2-fluorocyclopentyl)oxane-4-carboxamide	N-(2-fluorocyclopentyl)oxane-4-carboxamide	分子量：215.26 密度：N/A 沸点：N/A 熔点：N/A	2167898-58-8	C₁₁H₁₈FNO₂
N-(2-fluorocyclopentyl)-2,3-dihydro-1,4-benzodioxine-5-carboxamide	N-(2-fluorocyclopentyl)-2,3-dihydro-1,4-benzodioxine-5-carboxamide	分子量：265.28 密度：N/A 沸点：N/A 熔点：N/A	2198291-36-8	C₁₄H₁₆FNO₃
N-(2-fluorocyclopentyl)morpholine-4-carboxamide	N-(2-fluorocyclopentyl)morpholine-4-carboxamide	分子量：216.25 密度：N/A 沸点：N/A 熔点：N/A	2198769-73-0	C₁₀H₁₇FN₂O₂
N-(2-fluorocyclopentyl)-3,5-dimethyl-1H-pyrazole-4-carboxamide	N-(2-fluorocyclopentyl)-3,5-dimethyl-1H-pyrazole-4-carboxamide	分子量：225.26 密度：N/A 沸点：N/A 熔点：N/A	2197310-34-0	C₁₁H₁₆FN₃O
N-(2-fluorocyclopentyl)-5-methylpyrazine-2-carboxamide	N-(2-fluorocyclopentyl)-5-methylpyrazine-2-carboxamide	分子量：223.25 密度：N/A 沸点：N/A 熔点：N/A	2202504-59-2	C₁₁H₁₄FN₃O
N-(2-fluorocyclopentyl)quinoline-8-sulfonamide	N-(2-fluorocyclopentyl)quinoline-8-sulfonamide	分子量：294.35 密度：N/A 沸点：N/A 熔点：N/A	2201019-30-7	C₁₄H₁₅FN₂O₂S
N-(2-fluorocyclopentyl)-2,3-dihydro-1-benzofuran-5-sulfonamide	N-(2-fluorocyclopentyl)-2,3-dihydro-1-benzofuran-5-sulfonamide	分子量：285.34 密度：N/A 沸点：N/A 熔点：N/A	2199162-37-1	C₁₃H₁₆FNO₃S
5-bromo-N-(2-fluorocyclopentyl)pyrimidin-2-amine	5-bromo-N-(2-fluorocyclopentyl)pyrimidin-2-amine	分子量：260.11 密度：N/A 沸点：N/A 熔点：N/A	2199682-39-6	C₉H₁₁BrFN₃
5-chloro-N-(2-fluorocyclopentyl)pyrimidin-2-amine	5-chloro-N-(2-fluorocyclopentyl)pyrimidin-2-amine	分子量：215.65 密度：N/A 沸点：N/A 熔点：N/A	2202458-82-8	C₉H₁₁ClFN₃
N-(2-fluorocyclopentyl)-1,3-thiazol-2-amine	N-(2-fluorocyclopentyl)-1,3-thiazol-2-amine	分子量：186.25 密度：N/A 沸点：N/A 熔点：N/A	2197807-27-3	C₈H₁₁FN₂S
N-[(3,5-dimethyl-1,2-oxazol-4-yl)methyl]-2-fluorocyclopentan-1-amine	N-[(3,5-dimethyl-1,2-oxazol-4-yl)methyl]-2-fluorocyclopentan-1-amine	分子量：212.26 密度：N/A 沸点：N/A 熔点：N/A	2199317-68-3	C₁₁H₁₇FN₂O
2-fluoro-N-[(5-methyl-1,2-oxazol-3-yl)methyl]cyclopentan-1-amine	2-fluoro-N-[(5-methyl-1,2-oxazol-3-yl)methyl]cyclopentan-1-amine	分子量：198.24 密度：N/A 沸点：N/A 熔点：N/A	2199970-44-8	C₁₀H₁₅FN₂O
N-(2-fluorocyclopentyl)-N-methylquinoxaline-6-carboxamide	N-(2-fluorocyclopentyl)-N-methylquinoxaline-6-carboxamide	分子量：273.30 密度：N/A 沸点：N/A 熔点：N/A	2201878-05-7	C₁₅H₁₆FN₃O
6-cyclopropyl-N-(4-fluorooxolan-3-yl)-N-methylpyrimidin-4-amine	6-cyclopropyl-N-(4-fluorooxolan-3-yl)-N-methylpyrimidin-4-amine	分子量：237.27 密度：N/A 沸点：N/A 熔点：N/A	2197820-23-6	C₁₂H₁₆FN₃O
4-fluoro-N-methyl-N-[(5-methyl-1,2-oxazol-3-yl)methyl]oxolan-3-amine	4-fluoro-N-methyl-N-[(5-methyl-1,2-oxazol-3-yl)methyl]oxolan-3-amine	分子量：214.24 密度：N/A 沸点：N/A 熔点：N/A	2197759-14-9	C₁₀H₁₅FN₂O₂
1-{[1-(oxolane-2-carbonyl)azetidin-3-yl]methyl}-1H-1,2,3-triazole	1-{[1-(oxolane-2-carbonyl)azetidin-3-yl]methyl}-1H-1,2,3-triazole	分子量：236.27 密度：N/A 沸点：N/A 熔点：N/A	2201063-02-5	C₁₁H₁₆N₄O₂
6-{3-[(1H-1,2,3-triazol-1-yl)methyl]azetidine-1-carbonyl}quinoxaline	6-{3-[(1H-1,2,3-triazol-1-yl)methyl]azetidine-1-carbonyl}quinoxaline	分子量：294.31 密度：N/A 沸点：N/A 熔点：N/A	2199162-75-7	C₁₅H₁₄N₆O
1-{[1-(oxolane-3-carbonyl)azetidin-3-yl]methyl}-1H-1,2,3-triazole	1-{[1-(oxolane-3-carbonyl)azetidin-3-yl]methyl}-1H-1,2,3-triazole	分子量：236.27 密度：N/A 沸点：N/A 熔点：N/A	2199573-38-9	C₁₁H₁₆N₄O₂
6-{3-[(1H-1,2,3-triazol-1-yl)methyl]azetidine-1-carbonyl}-1,3-benzothiazole	6-{3-[(1H-1,2,3-triazol-1-yl)methyl]azetidine-1-carbonyl}-1,3-benzothiazole	分子量：299.35 密度：N/A 沸点：N/A 熔点：N/A	2201887-89-8	C₁₄H₁₃N₅OS
3-(3-{3-[(1H-1,2,3-triazol-1-yl)methyl]azetidine-1-carbonyl}-1,2-oxazol-5-yl)pyridine	3-(3-{3-[(1H-1,2,3-triazol-1-yl)methyl]azetidine-1-carbonyl}-1,2-oxazol-5-yl)pyridine	分子量：310.31 密度：N/A 沸点：N/A 熔点：N/A	2198770-55-5	C₁₅H₁₄N₆O₂