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
N-propyl-2-cyano-2-[(2-bromophenyl)hydrazono]acetamide	N-propyl-2-cyano-2-[(2-bromophenyl)hydrazono]acetamide	分子量：309.16 密度：N/A 沸点：N/A 熔点：N/A	1253049-53-4	C₁₂H₁₃BrN₄O
3-(4-methyl-1,2,3-thiadiazole-5-amido)cyclohexyl N-(4-fluorophenyl)carbamate	3-(4-methyl-1,2,3-thiadiazole-5-amido)cyclohexyl N-(4-fluorophenyl)carbamate	分子量：378.4 密度：N/A 沸点：N/A 熔点：N/A	1351646-75-7	C₁₇H₁₉FN₄O₃S
1-(1-(3-(Pyrazin-2-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)-3-(3-(trifluoromethyl)phenyl)urea	1-(1-(3-(Pyrazin-2-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)-3-(3-(trifluoromethyl)phenyl)urea	分子量：432.4 密度：N/A 沸点：N/A 熔点：N/A	1421584-04-4	C₂₀H₁₉F₃N₆O₂
3-(2-Methoxyethyl)-1-{1-[3-(pyrazin-2-yl)-1,2,4-oxadiazol-5-yl]cyclohexyl}urea	3-(2-Methoxyethyl)-1-{1-[3-(pyrazin-2-yl)-1,2,4-oxadiazol-5-yl]cyclohexyl}urea	分子量：346.38 密度：N/A 沸点：N/A 熔点：N/A	1396876-89-3	C₁₆H₂₂N₆O₃
5-chloro-2-methoxy-N-[1-(3-pyrazin-2-yl-1,2,4-oxadiazol-5-yl)cyclohexyl]benzenesulfonamide	5-chloro-2-methoxy-N-[1-(3-pyrazin-2-yl-1,2,4-oxadiazol-5-yl)cyclohexyl]benzenesulfonamide	分子量：449.9 密度：N/A 沸点：N/A 熔点：N/A	1396865-20-5	C₁₉H₂₀ClN₅O₄S
1-(2-Hydroxy-2-(4-(methylthio)phenyl)ethyl)-3-(2-(trifluoromethyl)phenyl)urea	1-(2-Hydroxy-2-(4-(methylthio)phenyl)ethyl)-3-(2-(trifluoromethyl)phenyl)urea	分子量：370.4 密度：N/A 沸点：N/A 熔点：N/A	1448073-81-1	C₁₇H₁₇F₃N₂O₂S
N-(1-(3-(pyrazin-2-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)thiophene-2-sulfonamide	N-(1-(3-(pyrazin-2-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)thiophene-2-sulfonamide	分子量：391.5 密度：N/A 沸点：N/A 熔点：N/A	1396795-36-0	C₁₆H₁₇N₅O₃S₂
N-(1-(3-(pyrazin-2-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)-2,3-dihydrobenzo[b][1,4]dioxine-6-sulfonamide	N-(1-(3-(pyrazin-2-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)-2,3-dihydrobenzo[b][1,4]dioxine-6-sulfonamide	分子量：443.5 密度：N/A 沸点：N/A 熔点：N/A	1396682-41-9	C₂₀H₂₁N₅O₅S
2-(2-chlorophenyl)-N-(1-(3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)acetamide	2-(2-chlorophenyl)-N-(1-(3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)acetamide	分子量：401.9 密度：N/A 沸点：N/A 熔点：N/A	1396679-94-9	C₂₀H₂₀ClN₃O₂S
4-chloro-2-methoxy-N-{1-[3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl]cyclohexyl}benzamide	4-chloro-2-methoxy-N-{1-[3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl]cyclohexyl}benzamide	分子量：417.9 密度：N/A 沸点：N/A 熔点：N/A	1396795-40-6	C₂₀H₂₀ClN₃O₃S
N-(1-(3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)quinoline-2-carboxamide	N-(1-(3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)quinoline-2-carboxamide	分子量：404.5 密度：N/A 沸点：N/A 熔点：N/A	1396766-82-7	C₂₂H₂₀N₄O₂S
1-Phenethyl-3-(1-(3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)urea	1-Phenethyl-3-(1-(3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)urea	分子量：396.5 密度：N/A 沸点：N/A 熔点：N/A	1396800-09-1	C₂₁H₂₄N₄O₂S
1-(2-Chlorophenyl)-3-(1-(3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)urea	1-(2-Chlorophenyl)-3-(1-(3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)urea	分子量：402.9 密度：N/A 沸点：N/A 熔点：N/A	1396865-24-9	C₁₉H₁₉ClN₄O₂S
1-(2-Bromophenyl)-3-(1-(3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)urea	1-(2-Bromophenyl)-3-(1-(3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)urea	分子量：447.4 密度：N/A 沸点：N/A 熔点：N/A	1396682-50-0	C₁₉H₁₉BrN₄O₂S
1-(Furan-2-ylmethyl)-3-(1-(3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)urea	1-(Furan-2-ylmethyl)-3-(1-(3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)urea	分子量：372.4 密度：N/A 沸点：N/A 熔点：N/A	1421584-09-9	C₁₈H₂₀N₄O₃S
1-(3-Fluorobenzyl)-3-(1-(3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)urea	1-(3-Fluorobenzyl)-3-(1-(3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)urea	分子量：400.5 密度：N/A 沸点：N/A 熔点：N/A	1396795-48-4	C₂₀H₂₁FN₄O₂S
1-(3-Chloro-4-methoxyphenyl)-3-{1-[3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl]cyclohexyl}urea	1-(3-Chloro-4-methoxyphenyl)-3-{1-[3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl]cyclohexyl}urea	分子量：432.9 密度：N/A 沸点：N/A 熔点：N/A	1396848-74-0	C₂₀H₂₁ClN₄O₃S
1-(2,3-Dihydro-1,4-benzodioxin-6-yl)-3-{1-[3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl]cyclohexyl}urea	1-(2,3-Dihydro-1,4-benzodioxin-6-yl)-3-{1-[3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl]cyclohexyl}urea	分子量：426.5 密度：N/A 沸点：N/A 熔点：N/A	1396877-12-5	C₂₁H₂₂N₄O₄S
1-(2,4-Difluorophenyl)-3-(1-(3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)urea	1-(2,4-Difluorophenyl)-3-(1-(3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)urea	分子量：404.4 密度：N/A 沸点：N/A 熔点：N/A	1396855-38-1	C₁₉H₁₈F₂N₄O₂S
N-(1-(3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)benzenesulfonamide	N-(1-(3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)benzenesulfonamide	分子量：389.5 密度：N/A 沸点：N/A 熔点：N/A	1396766-89-4	C₁₈H₁₉N₃O₃S₂
1-((4-cyclopentyl-4H-1,2,4-triazol-3-yl)methyl)-N-phenylpiperidine-4-carboxamide	1-((4-cyclopentyl-4H-1,2,4-triazol-3-yl)methyl)-N-phenylpiperidine-4-carboxamide	分子量：353.5 密度：N/A 沸点：N/A 熔点：N/A	1396800-13-7	C₂₀H₂₇N₅O
1-(3,4-Dichlorophenyl)-3-(2-hydroxy-2-(4-(methylthio)phenyl)ethyl)urea	1-(3,4-Dichlorophenyl)-3-(2-hydroxy-2-(4-(methylthio)phenyl)ethyl)urea	分子量：371.3 密度：N/A 沸点：N/A 熔点：N/A	1448035-68-4	C₁₆H₁₆Cl₂N₂O₂S
4-benzyl-N-(2-(3,5-dimethyl-1H-pyrazol-1-yl)ethyl)-5-oxomorpholine-3-carboxamide	4-benzyl-N-(2-(3,5-dimethyl-1H-pyrazol-1-yl)ethyl)-5-oxomorpholine-3-carboxamide	分子量：356.4 密度：N/A 沸点：N/A 熔点：N/A	1351582-49-4	C₁₉H₂₄N₄O₃
4-benzyl-N-(3-(tert-butyl)isoxazol-5-yl)-5-oxomorpholine-3-carboxamide	4-benzyl-N-(3-(tert-butyl)isoxazol-5-yl)-5-oxomorpholine-3-carboxamide	分子量：357.4 密度：N/A 沸点：N/A 熔点：N/A	1351587-74-0	C₁₉H₂₃N₃O₄
4-benzyl-5-oxo-N-(4,5,6,7-tetrahydrobenzo[c]isoxazol-3-yl)morpholine-3-carboxamide	4-benzyl-5-oxo-N-(4,5,6,7-tetrahydrobenzo[c]isoxazol-3-yl)morpholine-3-carboxamide	分子量：355.4 密度：N/A 沸点：N/A 熔点：N/A	1351581-81-1	C₁₉H₂₁N₃O₄
4-benzyl-5-oxo-N-(2-oxo-2H-chromen-3-yl)morpholine-3-carboxamide	4-benzyl-5-oxo-N-(2-oxo-2H-chromen-3-yl)morpholine-3-carboxamide	分子量：378.4 密度：N/A 沸点：N/A 熔点：N/A	1351582-46-1	C₂₁H₁₈N₂O₅
4-Benzyl-5-(4-benzylpiperidine-1-carbonyl)morpholin-3-one	4-Benzyl-5-(4-benzylpiperidine-1-carbonyl)morpholin-3-one	分子量：392.5 密度：N/A 沸点：N/A 熔点：N/A	1351586-29-2	C₂₄H₂₈N₂O₃
4-Benzyl-5-[4-(4-fluorophenyl)piperazine-1-carbonyl]morpholin-3-one	4-Benzyl-5-[4-(4-fluorophenyl)piperazine-1-carbonyl]morpholin-3-one	分子量：397.4 密度：N/A 沸点：N/A 熔点：N/A	1351581-38-8	C₂₂H₂₄FN₃O₃
4-benzyl-N-(1,3-dihydroxy-2-methylpropan-2-yl)-5-oxomorpholine-3-carboxamide	4-benzyl-N-(1,3-dihydroxy-2-methylpropan-2-yl)-5-oxomorpholine-3-carboxamide	分子量：322.36 密度：N/A 沸点：N/A 熔点：N/A	1351581-54-8	C₁₆H₂₂N₂O₅
Ethyl 2-(4-benzyl-5-oxomorpholine-3-carboxamido)acetate	Ethyl 2-(4-benzyl-5-oxomorpholine-3-carboxamido)acetate	分子量：320.34 密度：N/A 沸点：N/A 熔点：N/A	1351587-34-2	C₁₆H₂₀N₂O₅
N-(furan-3-ylmethyl)-N-(2-methoxyethyl)cyclopropanecarboxamide	N-(furan-3-ylmethyl)-N-(2-methoxyethyl)cyclopropanecarboxamide	分子量：223.27 密度：N/A 沸点：N/A 熔点：N/A	1421494-10-1	C₁₂H₁₇NO₃
N-(furan-3-ylmethyl)-N-(2-methoxyethyl)pivalamide	N-(furan-3-ylmethyl)-N-(2-methoxyethyl)pivalamide	分子量：239.31 密度：N/A 沸点：N/A 熔点：N/A	1421514-56-8	C₁₃H₂₁NO₃
methyl 2-(4-benzyl-N-methyl-5-oxomorpholine-3-carboxamido)benzoate	methyl 2-(4-benzyl-N-methyl-5-oxomorpholine-3-carboxamido)benzoate	分子量：382.4 密度：N/A 沸点：N/A 熔点：N/A	1351582-13-2	C₂₁H₂₂N₂O₅
4-benzyl-5-oxo-N-[2-(trifluoromethyl)phenyl]morpholine-3-carboxamide	4-benzyl-5-oxo-N-[2-(trifluoromethyl)phenyl]morpholine-3-carboxamide	分子量：378.3 密度：N/A 沸点：N/A 熔点：N/A	1351582-80-3	C₁₉H₁₇F₃N₂O₃
4-benzyl-N-(2-methoxyphenyl)-5-oxomorpholine-3-carboxamide	4-benzyl-N-(2-methoxyphenyl)-5-oxomorpholine-3-carboxamide	分子量：340.4 密度：N/A 沸点：N/A 熔点：N/A	1351587-07-9	C₁₉H₂₀N₂O₄
4-benzyl-5-oxo-N-(4-(N-(pyrimidin-2-yl)sulfamoyl)phenyl)morpholine-3-carboxamide	4-benzyl-5-oxo-N-(4-(N-(pyrimidin-2-yl)sulfamoyl)phenyl)morpholine-3-carboxamide	分子量：467.5 密度：N/A 沸点：N/A 熔点：N/A	1351581-75-3	C₂₂H₂₁N₅O₅S
4-benzyl-N-(4-(N-(2,6-dimethylpyrimidin-4-yl)sulfamoyl)phenyl)-5-oxomorpholine-3-carboxamide	4-benzyl-N-(4-(N-(2,6-dimethylpyrimidin-4-yl)sulfamoyl)phenyl)-5-oxomorpholine-3-carboxamide	分子量：495.6 密度：N/A 沸点：N/A 熔点：N/A	1396564-60-5	C₂₄H₂₅N₅O₅S
4-benzyl-N-(2,5-difluorophenyl)-5-oxomorpholine-3-carboxamide	4-benzyl-N-(2,5-difluorophenyl)-5-oxomorpholine-3-carboxamide	分子量：346.3 密度：N/A 沸点：N/A 熔点：N/A	1351581-91-3	C₁₈H₁₆F₂N₂O₃
N-(benzo[d][1,3]dioxol-5-yl)-4-benzyl-5-oxomorpholine-3-carboxamide	N-(benzo[d][1,3]dioxol-5-yl)-4-benzyl-5-oxomorpholine-3-carboxamide	分子量：354.4 密度：N/A 沸点：N/A 熔点：N/A	1351584-98-9	C₁₉H₁₈N₂O₅
4-benzyl-N-[2-chloro-5-(trifluoromethyl)phenyl]-5-oxomorpholine-3-carboxamide	4-benzyl-N-[2-chloro-5-(trifluoromethyl)phenyl]-5-oxomorpholine-3-carboxamide	分子量：412.8 密度：N/A 沸点：N/A 熔点：N/A	1351582-53-0	C₁₉H₁₆ClF₃N₂O₃
4-benzyl-N-(4-methylpiperazin-1-yl)-5-oxomorpholine-3-carboxamide	4-benzyl-N-(4-methylpiperazin-1-yl)-5-oxomorpholine-3-carboxamide	分子量：332.4 密度：N/A 沸点：N/A 熔点：N/A	1351589-52-0	C₁₇H₂₄N₄O₃
4-benzyl-N-(5-(dimethylcarbamoyl)-4-methylthiazol-2-yl)-5-oxomorpholine-3-carboxamide	4-benzyl-N-(5-(dimethylcarbamoyl)-4-methylthiazol-2-yl)-5-oxomorpholine-3-carboxamide	分子量：402.5 密度：N/A 沸点：N/A 熔点：N/A	1351581-74-2	C₁₉H₂₂N₄O₄S
ethyl 2-(4-benzyl-5-oxomorpholine-3-carboxamido)-5,6-dihydro-4H-cyclopenta[d]thiazole-4-carboxylate	ethyl 2-(4-benzyl-5-oxomorpholine-3-carboxamido)-5,6-dihydro-4H-cyclopenta[d]thiazole-4-carboxylate	分子量：429.5 密度：N/A 沸点：N/A 熔点：N/A	1351581-70-8	C₂₁H₂₃N₃O₅S
4-benzyl-N-(3-(methylsulfonamido)phenyl)-5-oxomorpholine-3-carboxamide	4-benzyl-N-(3-(methylsulfonamido)phenyl)-5-oxomorpholine-3-carboxamide	分子量：403.5 密度：N/A 沸点：N/A 熔点：N/A	1351588-32-3	C₁₉H₂₁N₃O₅S
4-benzyl-5-oxo-N-(2-(pyridin-4-yl)ethyl)morpholine-3-carboxamide	4-benzyl-5-oxo-N-(2-(pyridin-4-yl)ethyl)morpholine-3-carboxamide	分子量：339.4 密度：N/A 沸点：N/A 熔点：N/A	1351581-35-5	C₁₉H₂₁N₃O₃
4-benzyl-N-(4,5-dimethyl-1,3-thiazol-2-yl)-5-oxomorpholine-3-carboxamide	4-benzyl-N-(4,5-dimethyl-1,3-thiazol-2-yl)-5-oxomorpholine-3-carboxamide	分子量：345.4 密度：N/A 沸点：N/A 熔点：N/A	1351584-73-0	C₁₇H₁₉N₃O₃S
4-Benzyl-5-(4-(cyclopropanecarbonyl)piperazine-1-carbonyl)morpholin-3-one	4-Benzyl-5-(4-(cyclopropanecarbonyl)piperazine-1-carbonyl)morpholin-3-one	分子量：371.4 密度：N/A 沸点：N/A 熔点：N/A	1351581-43-5	C₂₀H₂₅N₃O₄
(E)-2-(4-(but-2-enamido)phenyl)-2H-tetrazole-5-carboxamide	(E)-2-(4-(but-2-enamido)phenyl)-2H-tetrazole-5-carboxamide	分子量：272.26 密度：N/A 沸点：N/A 熔点：N/A	1396892-41-3	C₁₂H₁₂N₆O₂
ethyl 4-((4-(5-carbamoyl-2H-tetrazol-2-yl)phenyl)amino)-4-oxobutanoate	ethyl 4-((4-(5-carbamoyl-2H-tetrazol-2-yl)phenyl)amino)-4-oxobutanoate	分子量：332.31 密度：N/A 沸点：N/A 熔点：N/A	1396682-67-9	C₁₄H₁₆N₆O₄
2-(4-(2-methylbenzamido)phenyl)-2H-tetrazole-5-carboxamide	2-(4-(2-methylbenzamido)phenyl)-2H-tetrazole-5-carboxamide	分子量：322.32 密度：N/A 沸点：N/A 熔点：N/A	1396795-60-0	C₁₆H₁₄N₆O₂