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
Ethyl 2,5-difluoroisonicotinate	Ethyl 2,5-difluoroisonicotinate	分子量：187.14 密度：N/A 沸点：N/A 熔点：N/A	1214387-10-6	C₈H₇F₂NO₂
N-(1-Ethyl-1H-pyrazol-4-yl)benzo[d]thiazol-2-amine	N-(1-Ethyl-1H-pyrazol-4-yl)benzo[d]thiazol-2-amine	分子量：244.32 密度：N/A 沸点：N/A 熔点：N/A	1155576-49-0	C₁₂H₁₂N₄S
4,6-dimethyl-N-(1-methyl-1H-pyrazol-4-yl)pyrimidin-2-amine	4,6-dimethyl-N-(1-methyl-1H-pyrazol-4-yl)pyrimidin-2-amine	分子量：203.24 密度：N/A 沸点：N/A 熔点：N/A	1153208-24-2	C₁₀H₁₃N₅
N-(1-phenylcyclohexyl)-2-ethoxyethanamine	N-(1-phenylcyclohexyl)-2-ethoxyethanamine	分子量：247.38 密度：N/A 沸点：N/A 熔点：N/A	1072895-05-6	C₁₆H₂₅NO
(2-(1-ethyl-1H-indol-2-yl)thiazol-4-yl)(4-hydroxypiperidin-1-yl)methanone	(2-(1-ethyl-1H-indol-2-yl)thiazol-4-yl)(4-hydroxypiperidin-1-yl)methanone	分子量：355.5 密度：N/A 沸点：N/A 熔点：N/A	1170434-46-4	C₁₉H₂₁N₃O₂S
2-(3,4-dimethoxyphenyl)-N-(6-((2-oxo-2-(pyrrolidin-1-yl)ethyl)thio)pyridazin-3-yl)acetamide	2-(3,4-dimethoxyphenyl)-N-(6-((2-oxo-2-(pyrrolidin-1-yl)ethyl)thio)pyridazin-3-yl)acetamide	分子量：416.5 密度：N/A 沸点：N/A 熔点：N/A	1021225-83-1	C₂₀H₂₄N₄O₄S
4-(N,N-dimethylsulfamoyl)-N-(6-((2-oxo-2-(pyrrolidin-1-yl)ethyl)thio)pyridazin-3-yl)benzamide	4-(N,N-dimethylsulfamoyl)-N-(6-((2-oxo-2-(pyrrolidin-1-yl)ethyl)thio)pyridazin-3-yl)benzamide	分子量：449.6 密度：N/A 沸点：N/A 熔点：N/A	1021225-86-4	C₁₉H₂₃N₅O₄S₂
Ethyl 1-(4-((6-acetamidopyridazin-3-yl)thio)butanoyl)piperidine-4-carboxylate	Ethyl 1-(4-((6-acetamidopyridazin-3-yl)thio)butanoyl)piperidine-4-carboxylate	分子量：394.5 密度：N/A 沸点：N/A 熔点：N/A	1105247-34-4	C₁₈H₂₆N₄O₄S
Ethyl 4-(4-((6-acetamidopyridazin-3-yl)thio)butanoyl)piperazine-1-carboxylate	Ethyl 4-(4-((6-acetamidopyridazin-3-yl)thio)butanoyl)piperazine-1-carboxylate	分子量：395.5 密度：N/A 沸点：N/A 熔点：N/A	1105247-42-4	C₁₇H₂₅N₅O₄S
N-(6-((4-oxo-4-(4-phenylpiperazin-1-yl)butyl)thio)pyridazin-3-yl)acetamide	N-(6-((4-oxo-4-(4-phenylpiperazin-1-yl)butyl)thio)pyridazin-3-yl)acetamide	分子量：399.5 密度：N/A 沸点：N/A 熔点：N/A	1105209-78-6	C₂₀H₂₅N₅O₂S
N-(6-((4-(4-(2-chlorophenyl)piperazin-1-yl)-4-oxobutyl)thio)pyridazin-3-yl)acetamide	N-(6-((4-(4-(2-chlorophenyl)piperazin-1-yl)-4-oxobutyl)thio)pyridazin-3-yl)acetamide	分子量：434.0 密度：N/A 沸点：N/A 熔点：N/A	1105247-63-9	C₂₀H₂₄ClN₅O₂S
N-(6-((4-(4-(3-chlorophenyl)piperazin-1-yl)-4-oxobutyl)thio)pyridazin-3-yl)acetamide	N-(6-((4-(4-(3-chlorophenyl)piperazin-1-yl)-4-oxobutyl)thio)pyridazin-3-yl)acetamide	分子量：434.0 密度：N/A 沸点：N/A 熔点：N/A	1105209-94-6	C₂₀H₂₄ClN₅O₂S
N-(6-((4-(indolin-1-yl)-4-oxobutyl)thio)pyridazin-3-yl)acetamide	N-(6-((4-(indolin-1-yl)-4-oxobutyl)thio)pyridazin-3-yl)acetamide	分子量：356.4 密度：N/A 沸点：N/A 熔点：N/A	1105247-70-8	C₁₈H₂₀N₄O₂S
4-[(6-acetamidopyridazin-3-yl)sulfanyl]-N-(1,3-thiazol-2-yl)butanamide	4-[(6-acetamidopyridazin-3-yl)sulfanyl]-N-(1,3-thiazol-2-yl)butanamide	分子量：337.4 密度：N/A 沸点：N/A 熔点：N/A	1105247-92-4	C₁₃H₁₅N₅O₂S₂
4-((6-acetamidopyridazin-3-yl)thio)-N-(3-chloro-4-fluorophenyl)butanamide	4-((6-acetamidopyridazin-3-yl)thio)-N-(3-chloro-4-fluorophenyl)butanamide	分子量：382.8 密度：N/A 沸点：N/A 熔点：N/A	1021225-96-6	C₁₆H₁₆ClFN₄O₂S
4-((6-acetamidopyridazin-3-yl)thio)-N-(4-(trifluoromethyl)phenyl)butanamide	4-((6-acetamidopyridazin-3-yl)thio)-N-(4-(trifluoromethyl)phenyl)butanamide	分子量：398.4 密度：N/A 沸点：N/A 熔点：N/A	1021253-40-6	C₁₇H₁₇F₃N₄O₂S
4-((6-acetamidopyridazin-3-yl)thio)-N-(4-(trifluoromethoxy)phenyl)butanamide	4-((6-acetamidopyridazin-3-yl)thio)-N-(4-(trifluoromethoxy)phenyl)butanamide	分子量：414.4 密度：N/A 沸点：N/A 熔点：N/A	1105248-08-5	C₁₇H₁₇F₃N₄O₃S
4-((6-acetamidopyridazin-3-yl)thio)-N-(5-chloro-2-methoxyphenyl)butanamide	4-((6-acetamidopyridazin-3-yl)thio)-N-(5-chloro-2-methoxyphenyl)butanamide	分子量：394.9 密度：N/A 沸点：N/A 熔点：N/A	1040647-81-1	C₁₇H₁₉ClN₄O₃S
4-((6-acetamidopyridazin-3-yl)thio)-N-(2,5-difluorophenyl)butanamide	4-((6-acetamidopyridazin-3-yl)thio)-N-(2,5-difluorophenyl)butanamide	分子量：366.4 密度：N/A 沸点：N/A 熔点：N/A	1105248-24-5	C₁₆H₁₆F₂N₄O₂S
4-((6-acetamidopyridazin-3-yl)thio)-N-(quinolin-3-yl)butanamide	4-((6-acetamidopyridazin-3-yl)thio)-N-(quinolin-3-yl)butanamide	分子量：381.5 密度：N/A 沸点：N/A 熔点：N/A	1105210-58-9	C₁₉H₁₉N₅O₂S
4-((6-acetamidopyridazin-3-yl)thio)-N-(3-methylisoxazol-5-yl)butanamide	4-((6-acetamidopyridazin-3-yl)thio)-N-(3-methylisoxazol-5-yl)butanamide	分子量：335.38 密度：N/A 沸点：N/A 熔点：N/A	1105248-40-5	C₁₄H₁₇N₅O₃S
4-((6-acetamidopyridazin-3-yl)thio)-N-cyclopropylbutanamide	4-((6-acetamidopyridazin-3-yl)thio)-N-cyclopropylbutanamide	分子量：294.38 密度：N/A 沸点：N/A 熔点：N/A	1105210-73-8	C₁₃H₁₈N₄O₂S
N-(5-acetamido-2-methoxyphenyl)-4-((6-acetamidopyridazin-3-yl)thio)butanamide	N-(5-acetamido-2-methoxyphenyl)-4-((6-acetamidopyridazin-3-yl)thio)butanamide	分子量：417.5 密度：N/A 沸点：N/A 熔点：N/A	1105210-81-8	C₁₉H₂₃N₅O₄S
4-((6-acetamidopyridazin-3-yl)thio)-N-(4-sulfamoylphenyl)butanamide	4-((6-acetamidopyridazin-3-yl)thio)-N-(4-sulfamoylphenyl)butanamide	分子量：409.5 密度：N/A 沸点：N/A 熔点：N/A	1105248-56-3	C₁₆H₁₉N₅O₄S₂
N-(6-((4-(4-benzylpiperidin-1-yl)-4-oxobutyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	N-(6-((4-(4-benzylpiperidin-1-yl)-4-oxobutyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	分子量：438.6 密度：N/A 沸点：N/A 熔点：N/A	1021253-43-9	C₂₄H₃₀N₄O₂S
Ethyl 1-(4-((6-(cyclopropanecarboxamido)pyridazin-3-yl)thio)butanoyl)piperidine-4-carboxylate	Ethyl 1-(4-((6-(cyclopropanecarboxamido)pyridazin-3-yl)thio)butanoyl)piperidine-4-carboxylate	分子量：420.5 密度：N/A 沸点：N/A 熔点：N/A	1040647-91-3	C₂₀H₂₈N₄O₄S
N-(6-((4-(4-(2-fluorophenyl)piperazin-1-yl)-4-oxobutyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	N-(6-((4-(4-(2-fluorophenyl)piperazin-1-yl)-4-oxobutyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	分子量：443.5 密度：N/A 沸点：N/A 熔点：N/A	1105248-72-3	C₂₂H₂₆FN₅O₂S
N-(6-((4-oxo-4-((pyridin-3-ylmethyl)amino)butyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	N-(6-((4-oxo-4-((pyridin-3-ylmethyl)amino)butyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	分子量：371.5 密度：N/A 沸点：N/A 熔点：N/A	1040648-16-5	C₁₈H₂₁N₅O₂S
N-(6-((4-((2-fluorophenyl)amino)-4-oxobutyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	N-(6-((4-((2-fluorophenyl)amino)-4-oxobutyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	分子量：374.4 密度：N/A 沸点：N/A 熔点：N/A	1021226-04-9	C₁₈H₁₉FN₄O₂S
N-(6-((4-((3,4-difluorophenyl)amino)-4-oxobutyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	N-(6-((4-((3,4-difluorophenyl)amino)-4-oxobutyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	分子量：392.4 密度：N/A 沸点：N/A 熔点：N/A	1040648-26-7	C₁₈H₁₈F₂N₄O₂S
N-(6-((4-oxo-4-(pyridin-3-ylamino)butyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	N-(6-((4-oxo-4-(pyridin-3-ylamino)butyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	分子量：357.4 密度：N/A 沸点：N/A 熔点：N/A	1040648-41-6	C₁₇H₁₉N₅O₂S
N-(6-((4-((6-methylpyridin-2-yl)amino)-4-oxobutyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	N-(6-((4-((6-methylpyridin-2-yl)amino)-4-oxobutyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	分子量：371.5 密度：N/A 沸点：N/A 熔点：N/A	1105248-80-3	C₁₈H₂₁N₅O₂S
N-(6-((4-((4-methylthiazol-2-yl)amino)-4-oxobutyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	N-(6-((4-((4-methylthiazol-2-yl)amino)-4-oxobutyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	分子量：377.5 密度：N/A 沸点：N/A 熔点：N/A	1021226-06-1	C₁₆H₁₉N₅O₂S₂
N-(6-((4-(cycloheptylamino)-4-oxobutyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	N-(6-((4-(cycloheptylamino)-4-oxobutyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	分子量：376.5 密度：N/A 沸点：N/A 熔点：N/A	1105248-88-1	C₁₉H₂₈N₄O₂S
N-(6-((4-((2-chlorophenyl)amino)-4-oxobutyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	N-(6-((4-((2-chlorophenyl)amino)-4-oxobutyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	分子量：390.9 密度：N/A 沸点：N/A 熔点：N/A	1040648-51-8	C₁₈H₁₉ClN₄O₂S
N-(6-((4-oxo-4-((4-(trifluoromethyl)phenyl)amino)butyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	N-(6-((4-oxo-4-((4-(trifluoromethyl)phenyl)amino)butyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	分子量：424.4 密度：N/A 沸点：N/A 熔点：N/A	1040648-57-4	C₁₉H₁₉F₃N₄O₂S
benzyl N-[2-[(2-methylpropan-2-yl)oxycarbonylamino]spiro[3.3]heptan-6-yl]carbamate	benzyl N-[2-[(2-methylpropan-2-yl)oxycarbonylamino]spiro[3.3]heptan-6-yl]carbamate	分子量：360.4 密度：N/A 沸点：N/A 熔点：N/A	1239589-53-7	C₂₀H₂₈N₂O₄
N-(6-((4-((3,4-dichlorophenyl)amino)-4-oxobutyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	N-(6-((4-((3,4-dichlorophenyl)amino)-4-oxobutyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	分子量：425.3 密度：N/A 沸点：N/A 熔点：N/A	1040648-62-1	C₁₈H₁₈Cl₂N₄O₂S
N-(6-((4-oxo-4-(quinolin-3-ylamino)butyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	N-(6-((4-oxo-4-(quinolin-3-ylamino)butyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	分子量：407.5 密度：N/A 沸点：N/A 熔点：N/A	1040648-72-3	C₂₁H₂₁N₅O₂S
N-(6-((4-oxo-4-((4-sulfamoylphenyl)amino)butyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	N-(6-((4-oxo-4-((4-sulfamoylphenyl)amino)butyl)thio)pyridazin-3-yl)cyclopropanecarboxamide	分子量：435.5 密度：N/A 沸点：N/A 熔点：N/A	1105249-03-3	C₁₈H₂₁N₅O₄S₂
N-(6-((4-(methyl(1-methylpiperidin-4-yl)amino)-4-oxobutyl)thio)pyridazin-3-yl)thiophene-2-carboxamide	N-(6-((4-(methyl(1-methylpiperidin-4-yl)amino)-4-oxobutyl)thio)pyridazin-3-yl)thiophene-2-carboxamide	分子量：433.6 密度：N/A 沸点：N/A 熔点：N/A	1040648-77-8	C₂₀H₂₇N₅O₂S₂
N-(6-((4-((furan-2-ylmethyl)amino)-4-oxobutyl)thio)pyridazin-3-yl)thiophene-2-carboxamide	N-(6-((4-((furan-2-ylmethyl)amino)-4-oxobutyl)thio)pyridazin-3-yl)thiophene-2-carboxamide	分子量：402.5 密度：N/A 沸点：N/A 熔点：N/A	1021226-14-1	C₁₈H₁₈N₄O₃S₂
N-(6-((4-oxo-4-((thiophen-2-ylmethyl)amino)butyl)thio)pyridazin-3-yl)thiophene-2-carboxamide	N-(6-((4-oxo-4-((thiophen-2-ylmethyl)amino)butyl)thio)pyridazin-3-yl)thiophene-2-carboxamide	分子量：418.6 密度：N/A 沸点：N/A 熔点：N/A	1040648-87-0	C₁₈H₁₈N₄O₂S₃
N-(6-((4-((2-fluorophenyl)amino)-4-oxobutyl)thio)pyridazin-3-yl)thiophene-2-carboxamide	N-(6-((4-((2-fluorophenyl)amino)-4-oxobutyl)thio)pyridazin-3-yl)thiophene-2-carboxamide	分子量：416.5 密度：N/A 沸点：N/A 熔点：N/A	1040648-92-7	C₁₉H₁₇FN₄O₂S₂
6-(4-Ethylphenyl)-2-pyridinamine	6-(4-Ethylphenyl)-2-pyridinamine	分子量：198.26 密度：N/A 沸点：N/A 熔点：N/A	1159817-54-5	C₁₃H₁₄N₂
N-(6-((4-oxo-4-(quinolin-3-ylamino)butyl)thio)pyridazin-3-yl)thiophene-2-carboxamide	N-(6-((4-oxo-4-(quinolin-3-ylamino)butyl)thio)pyridazin-3-yl)thiophene-2-carboxamide	分子量：449.6 密度：N/A 沸点：N/A 熔点：N/A	1040649-32-8	C₂₂H₁₉N₅O₂S₂
1-(4-((6-(Thiophene-2-carboxamido)pyridazin-3-yl)thio)butanoyl)piperidine-4-carboxamide	1-(4-((6-(Thiophene-2-carboxamido)pyridazin-3-yl)thio)butanoyl)piperidine-4-carboxamide	分子量：433.6 密度：N/A 沸点：N/A 熔点：N/A	1040649-36-2	C₁₉H₂₃N₅O₃S₂
N-(6-((4-((4-carbamoylphenyl)amino)-4-oxobutyl)thio)pyridazin-3-yl)thiophene-2-carboxamide	N-(6-((4-((4-carbamoylphenyl)amino)-4-oxobutyl)thio)pyridazin-3-yl)thiophene-2-carboxamide	分子量：441.5 密度：N/A 沸点：N/A 熔点：N/A	1040649-40-8	C₂₀H₁₉N₅O₃S₂
N-(6-((4-((2-methoxyethyl)amino)-4-oxobutyl)thio)pyridazin-3-yl)furan-2-carboxamide	N-(6-((4-((2-methoxyethyl)amino)-4-oxobutyl)thio)pyridazin-3-yl)furan-2-carboxamide	分子量：364.4 密度：N/A 沸点：N/A 熔点：N/A	1040649-44-2	C₁₆H₂₀N₄O₄S
N-(6-((4-((benzo[d][1,3]dioxol-5-ylmethyl)amino)-4-oxobutyl)thio)pyridazin-3-yl)furan-2-carboxamide	N-(6-((4-((benzo[d][1,3]dioxol-5-ylmethyl)amino)-4-oxobutyl)thio)pyridazin-3-yl)furan-2-carboxamide	分子量：440.5 密度：N/A 沸点：N/A 熔点：N/A	1040649-53-3	C₂₁H₂₀N₄O₅S