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
2,6-difluoro-N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)benzamide	2,6-difluoro-N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)benzamide	分子量：389.4 密度：N/A 沸点：N/A 熔点：N/A	897614-15-2	C₁₈H₁₃F₂N₃O₃S
3,4-difluoro-N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)benzamide	3,4-difluoro-N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)benzamide	分子量：389.4 密度：N/A 沸点：N/A 熔点：N/A	897614-16-3	C₁₈H₁₃F₂N₃O₃S
N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)-4-(trifluoromethyl)benzamide	N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)-4-(trifluoromethyl)benzamide	分子量：421.4 密度：N/A 沸点：N/A 熔点：N/A	897614-17-4	C₁₉H₁₄F₃N₃O₃S
N-[3-(6-methanesulfonylpyridazin-3-yl)phenyl]-3-(trifluoromethyl)benzamide	N-[3-(6-methanesulfonylpyridazin-3-yl)phenyl]-3-(trifluoromethyl)benzamide	分子量：421.4 密度：N/A 沸点：N/A 熔点：N/A	897614-18-5	C₁₉H₁₄F₃N₃O₃S
N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)benzo[d][1,3]dioxole-5-carboxamide	N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)benzo[d][1,3]dioxole-5-carboxamide	分子量：397.4 密度：N/A 沸点：N/A 熔点：N/A	897614-19-6	C₁₉H₁₅N₃O₅S
2-(4-chlorophenyl)-N-[3-(6-methanesulfonylpyridazin-3-yl)phenyl]acetamide	2-(4-chlorophenyl)-N-[3-(6-methanesulfonylpyridazin-3-yl)phenyl]acetamide	分子量：401.9 密度：N/A 沸点：N/A 熔点：N/A	897614-20-9	C₁₉H₁₆ClN₃O₃S
N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)-2-(thiophen-2-yl)acetamide	N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)-2-(thiophen-2-yl)acetamide	分子量：373.5 密度：N/A 沸点：N/A 熔点：N/A	897614-22-1	C₁₇H₁₅N₃O₃S₂
2,4-dimethoxy-N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)benzamide	2,4-dimethoxy-N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)benzamide	分子量：413.4 密度：N/A 沸点：N/A 熔点：N/A	897614-23-2	C₂₀H₁₉N₃O₅S
N-[3-(6-methanesulfonylpyridazin-3-yl)phenyl]-3-(4-methoxyphenyl)propanamide	N-[3-(6-methanesulfonylpyridazin-3-yl)phenyl]-3-(4-methoxyphenyl)propanamide	分子量：411.5 密度：N/A 沸点：N/A 熔点：N/A	897614-24-3	C₂₁H₂₁N₃O₄S
N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)-2-(trifluoromethyl)benzamide	N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)-2-(trifluoromethyl)benzamide	分子量：421.4 密度：N/A 沸点：N/A 熔点：N/A	897614-25-4	C₁₉H₁₄F₃N₃O₃S
N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)-2-phenoxyacetamide	N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)-2-phenoxyacetamide	分子量：383.4 密度：N/A 沸点：N/A 熔点：N/A	897614-26-5	C₁₉H₁₇N₃O₄S
2-(4-chlorophenoxy)-N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)acetamide	2-(4-chlorophenoxy)-N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)acetamide	分子量：417.9 密度：N/A 沸点：N/A 熔点：N/A	897614-27-6	C₁₉H₁₆ClN₃O₄S
2-methoxy-N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)acetamide	2-methoxy-N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)acetamide	分子量：321.35 密度：N/A 沸点：N/A 熔点：N/A	897614-28-7	C₁₄H₁₅N₃O₄S
N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)-2-(m-tolyl)acetamide	N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)-2-(m-tolyl)acetamide	分子量：381.4 密度：N/A 沸点：N/A 熔点：N/A	897614-29-8	C₂₀H₁₉N₃O₃S
2-(4-fluorophenyl)-N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)acetamide	2-(4-fluorophenyl)-N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)acetamide	分子量：385.4 密度：N/A 沸点：N/A 熔点：N/A	897614-30-1	C₁₉H₁₆FN₃O₃S
2-(4-ethoxyphenyl)-N-[3-(6-methanesulfonylpyridazin-3-yl)phenyl]acetamide	2-(4-ethoxyphenyl)-N-[3-(6-methanesulfonylpyridazin-3-yl)phenyl]acetamide	分子量：411.5 密度：N/A 沸点：N/A 熔点：N/A	897614-31-2	C₂₁H₂₁N₃O₄S
2-(3,4-dimethoxyphenyl)-N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)acetamide	2-(3,4-dimethoxyphenyl)-N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)acetamide	分子量：427.5 密度：N/A 沸点：N/A 熔点：N/A	897614-32-3	C₂₁H₂₁N₃O₅S
2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(3,4-dimethoxyphenethyl)acetamide	2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(3,4-dimethoxyphenethyl)acetamide	分子量：467.9 密度：N/A 沸点：N/A 熔点：N/A	895017-55-7	C₂₃H₂₂ClN₅O₄
2,4-difluoro-N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)benzamide	2,4-difluoro-N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)benzamide	分子量：389.4 密度：N/A 沸点：N/A 熔点：N/A	897614-33-4	C₁₈H₁₃F₂N₃O₃S
N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)-2-oxo-2H-chromene-3-carboxamide	N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)-2-oxo-2H-chromene-3-carboxamide	分子量：421.4 密度：N/A 沸点：N/A 熔点：N/A	897614-34-5	C₂₁H₁₅N₃O₅S
N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)-2-(naphthalen-2-yloxy)acetamide	N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)-2-(naphthalen-2-yloxy)acetamide	分子量：433.5 密度：N/A 沸点：N/A 熔点：N/A	897614-36-7	C₂₃H₁₉N₃O₄S
2-ethoxy-N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)nicotinamide	2-ethoxy-N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)nicotinamide	分子量：398.4 密度：N/A 沸点：N/A 熔点：N/A	897614-38-9	C₁₉H₁₈N₄O₄S
N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)quinoline-2-carboxamide	N-(3-(6-(methylsulfonyl)pyridazin-3-yl)phenyl)quinoline-2-carboxamide	分子量：404.4 密度：N/A 沸点：N/A 熔点：N/A	897614-40-3	C₂₁H₁₆N₄O₃S
N-(3-([1,2,4]triazolo[4,3-b]pyridazin-6-yl)phenyl)-3-(trifluoromethyl)benzenesulfonamide	N-(3-([1,2,4]triazolo[4,3-b]pyridazin-6-yl)phenyl)-3-(trifluoromethyl)benzenesulfonamide	分子量：419.4 密度：N/A 沸点：N/A 熔点：N/A	891124-39-3	C₁₈H₁₂F₃N₅O₂S
2-(4-oxo-1-(o-tolyl)-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(2-(trifluoromethyl)phenyl)acetamide	2-(4-oxo-1-(o-tolyl)-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(2-(trifluoromethyl)phenyl)acetamide	分子量：427.4 密度：N/A 沸点：N/A 熔点：N/A	895010-46-5	C₂₁H₁₆F₃N₅O₂
2-[1-(2-methylphenyl)-4-oxo-1H,4H,5H-pyrazolo[3,4-d]pyrimidin-5-yl]-N-[3-(trifluoromethyl)phenyl]acetamide	2-[1-(2-methylphenyl)-4-oxo-1H,4H,5H-pyrazolo[3,4-d]pyrimidin-5-yl]-N-[3-(trifluoromethyl)phenyl]acetamide	分子量：427.4 密度：N/A 沸点：N/A 熔点：N/A	895010-53-4	C₂₁H₁₆F₃N₅O₂
2-(4-oxo-1-(o-tolyl)-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(4-(trifluoromethyl)phenyl)acetamide	2-(4-oxo-1-(o-tolyl)-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(4-(trifluoromethyl)phenyl)acetamide	分子量：427.4 密度：N/A 沸点：N/A 熔点：N/A	895010-60-3	C₂₁H₁₆F₃N₅O₂
2-(4-oxo-1-(o-tolyl)-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(4-(trifluoromethoxy)phenyl)acetamide	2-(4-oxo-1-(o-tolyl)-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(4-(trifluoromethoxy)phenyl)acetamide	分子量：443.4 密度：N/A 沸点：N/A 熔点：N/A	895010-67-0	C₂₁H₁₆F₃N₅O₃
N-(3,4-dichlorophenyl)-2-(4-oxo-1-(o-tolyl)-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)acetamide	N-(3,4-dichlorophenyl)-2-(4-oxo-1-(o-tolyl)-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)acetamide	分子量：428.3 密度：N/A 沸点：N/A 熔点：N/A	895014-22-9	C₂₀H₁₅Cl₂N₅O₂
N-(2-chloro-5-(trifluoromethyl)phenyl)-2-(4-oxo-1-(o-tolyl)-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)acetamide	N-(2-chloro-5-(trifluoromethyl)phenyl)-2-(4-oxo-1-(o-tolyl)-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)acetamide	分子量：461.8 密度：N/A 沸点：N/A 熔点：N/A	895014-40-1	C₂₁H₁₅ClF₃N₅O₂
1-(3-chlorophenyl)-5-(2-oxo-2-(4-phenylpiperazin-1-yl)ethyl)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one	1-(3-chlorophenyl)-5-(2-oxo-2-(4-phenylpiperazin-1-yl)ethyl)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one	分子量：448.9 密度：N/A 沸点：N/A 熔点：N/A	887457-37-6	C₂₃H₂₁ClN₆O₂
5-(2-(4-benzylpiperidin-1-yl)-2-oxoethyl)-1-(3-chlorophenyl)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one	5-(2-(4-benzylpiperidin-1-yl)-2-oxoethyl)-1-(3-chlorophenyl)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one	分子量：461.9 密度：N/A 沸点：N/A 熔点：N/A	887457-41-2	C₂₅H₂₄ClN₅O₂
1-(3-chlorophenyl)-5-(2-(3,4-dihydroquinolin-1(2H)-yl)-2-oxoethyl)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one	1-(3-chlorophenyl)-5-(2-(3,4-dihydroquinolin-1(2H)-yl)-2-oxoethyl)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one	分子量：419.9 密度：N/A 沸点：N/A 熔点：N/A	887457-44-5	C₂₂H₁₈ClN₅O₂
2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(naphthalen-1-yl)acetamide	2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(naphthalen-1-yl)acetamide	分子量：429.9 密度：N/A 沸点：N/A 熔点：N/A	887457-54-7	C₂₃H₁₆ClN₅O₂
2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-mesitylacetamide	2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-mesitylacetamide	分子量：421.9 密度：N/A 沸点：N/A 熔点：N/A	895015-74-4	C₂₂H₂₀ClN₅O₂
N-(4-butylphenyl)-2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)acetamide	N-(4-butylphenyl)-2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)acetamide	分子量：435.9 密度：N/A 沸点：N/A 熔点：N/A	895015-81-3	C₂₃H₂₂ClN₅O₂
2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(2,4-difluorophenyl)acetamide	2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(2,4-difluorophenyl)acetamide	分子量：415.8 密度：N/A 沸点：N/A 熔点：N/A	895015-88-0	C₁₉H₁₂ClF₂N₅O₂
2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(2-ethoxyphenyl)acetamide	2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(2-ethoxyphenyl)acetamide	分子量：423.9 密度：N/A 沸点：N/A 熔点：N/A	895016-02-1	C₂₁H₁₈ClN₅O₃
2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(4-ethoxyphenyl)acetamide	2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(4-ethoxyphenyl)acetamide	分子量：423.9 密度：N/A 沸点：N/A 熔点：N/A	895016-08-7	C₂₁H₁₈ClN₅O₃
2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(2,5-dimethoxyphenyl)acetamide	2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(2,5-dimethoxyphenyl)acetamide	分子量：439.8 密度：N/A 沸点：N/A 熔点：N/A	895016-20-3	C₂₁H₁₈ClN₅O₄
2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(3,4-dimethoxyphenyl)acetamide	2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(3,4-dimethoxyphenyl)acetamide	分子量：439.8 密度：N/A 沸点：N/A 熔点：N/A	895016-26-9	C₂₁H₁₈ClN₅O₄
2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)acetamide	2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)acetamide	分子量：437.8 密度：N/A 沸点：N/A 熔点：N/A	895016-38-3	C₂₁H₁₆ClN₅O₄
2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(2-(trifluoromethyl)phenyl)acetamide	2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(2-(trifluoromethyl)phenyl)acetamide	分子量：447.8 密度：N/A 沸点：N/A 熔点：N/A	895016-44-1	C₂₀H₁₃ClF₃N₅O₂
2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(3-(trifluoromethyl)phenyl)acetamide	2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(3-(trifluoromethyl)phenyl)acetamide	分子量：447.8 密度：N/A 沸点：N/A 熔点：N/A	895016-50-9	C₂₀H₁₃ClF₃N₅O₂
2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(4-(trifluoromethyl)phenyl)acetamide	2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(4-(trifluoromethyl)phenyl)acetamide	分子量：447.8 密度：N/A 沸点：N/A 熔点：N/A	895016-56-5	C₂₀H₁₃ClF₃N₅O₂
2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(3-nitrophenyl)acetamide	2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(3-nitrophenyl)acetamide	分子量：424.8 密度：N/A 沸点：N/A 熔点：N/A	895016-68-9	C₁₉H₁₃ClN₆O₄
2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(4-nitrophenyl)acetamide	2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(4-nitrophenyl)acetamide	分子量：424.8 密度：N/A 沸点：N/A 熔点：N/A	895016-74-7	C₁₉H₁₃ClN₆O₄
ethyl 2-(2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)acetamido)benzoate	ethyl 2-(2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)acetamido)benzoate	分子量：451.9 密度：N/A 沸点：N/A 熔点：N/A	895016-80-5	C₂₂H₁₈ClN₅O₄
ethyl 4-(2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)acetamido)benzoate	ethyl 4-(2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)acetamido)benzoate	分子量：451.9 密度：N/A 沸点：N/A 熔点：N/A	895016-87-2	C₂₂H₁₈ClN₅O₄
methyl 4-(2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)acetamido)benzoate	methyl 4-(2-(1-(3-chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)acetamido)benzoate	分子量：437.8 密度：N/A 沸点：N/A 熔点：N/A	895016-94-1	C₂₁H₁₆ClN₅O₄