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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 CAS号
Ethyl 4-(2-((7-oxo-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamido)benzoate 877638-30-7
Methyl 4-(2-((7-oxo-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamido)benzoate 877638-32-9
N-(3-acetamidophenyl)-2-((7-oxo-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide 877638-34-1
Ethyl 2-(2-((7-oxo-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate 877638-38-5
ethyl 2-(2-((7-oxo-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamido)-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-3-carboxylate 877638-39-6
3-((4-methylbenzyl)thio)-[1,2,4]triazolo[4,3-a]pyrimidin-7(8H)-one 877638-48-7
N-(4-chlorophenyl)-2-((7-oxo-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide 877638-53-4
N-(4-bromophenyl)-2-((7-oxo-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide 877638-54-5
N-(3-chloro-4-methylphenyl)-2-((7-oxo-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide 877638-56-7
Diethyl 3-methyl-5-(2-((5-methyl-7-oxo-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamido)thiophene-2,4-dicarboxylate 877639-53-7
Methyl 2-((5-methyl-7-oxo-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetate 891118-49-3
Ethyl 2-((5-methyl-7-oxo-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetate 891118-57-3
Ethyl 2-((5-methyl-7-oxo-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)propanoate 891118-65-3
3-((2-(2,6-dimethylmorpholino)-2-oxoethyl)thio)-5-methyl-[1,2,4]triazolo[4,3-a]pyrimidin-7(8H)-one 877639-88-8
3-((2-(3-(4-bromophenyl)-5-(4-methoxyphenyl)-4,5-dihydro-1H-pyrazol-1-yl)-2-oxoethyl)thio)-5-methyl-[1,2,4]triazolo[4,3-a]pyrimidin-7(8H)-one 891120-11-9
Ethyl 4-(2-((7-oxo-5-phenyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetyl)piperazine-1-carboxylate 894995-41-6
3-((3-fluorobenzyl)thio)-5-phenyl-[1,2,4]triazolo[4,3-a]pyrimidin-7(8H)-one 895002-77-4
3-((3,4-dichlorobenzyl)thio)-5-phenyl-[1,2,4]triazolo[4,3-a]pyrimidin-7(8H)-one 897616-12-5
ethyl 3-(difluoromethyl)-5-methoxy-6-oxo-1H-pyridine-2-carboxylate 1805483-63-9
N-(4-butylphenyl)-2-((7-oxo-5-propyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide 895003-65-3
N-(3,4-dimethoxyphenyl)-2-((7-oxo-5-propyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide 895004-29-2
N-(benzo[d][1,3]dioxol-5-yl)-2-((7-oxo-5-propyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide 891122-92-2
Ethyl 2-(2-((7-oxo-5-propyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamido)benzoate 895004-37-2
N-(4-acetylphenyl)-2-((7-oxo-5-propyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide 895004-61-2
N-(4-acetamidophenyl)-2-((7-oxo-5-propyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide 895004-77-0
N-cyclopentyl-2-((7-oxo-5-propyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide 891123-24-3
N-cyclohexyl-2-((7-oxo-5-propyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide 891123-32-3
2-((7-oxo-5-propyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)-N-phenethylacetamide 895005-25-1
N-(3,4-dimethoxyphenethyl)-2-((7-oxo-5-propyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide 887213-99-2
2-[(7-keto-5-propyl-1H-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio]-N-thiazol-2-yl-acetamide 891123-56-1
N-(5-ethyl-1,3,4-thiadiazol-2-yl)-2-((7-oxo-5-propyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide 895005-33-1
N-(4-methylbenzyl)-2-((7-oxo-5-propyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide 895005-48-8
4-(2-((7-Oxo-5-propyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamido)benzamide 895005-55-7
3-((3-methylbenzyl)thio)-5-propyl-[1,2,4]triazolo[4,3-a]pyrimidin-7(8H)-one 891124-20-2
3-((2,5-dimethylbenzyl)thio)-5-propyl-[1,2,4]triazolo[4,3-a]pyrimidin-7(8H)-one 891124-28-0
Ethyl 2-((7-oxo-5-propyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetate 891124-91-7
Ethyl 2-((7-oxo-5-propyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)butanoate 895005-69-3
Methyl 2-((7-oxo-5-propyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)propanoate 891125-15-8
3-((2-(4-methoxyphenyl)-2-oxoethyl)thio)-5-propyl-[1,2,4]triazolo[4,3-a]pyrimidin-7(8H)-one 891125-39-6
N-methyl-2-((7-oxo-5-propyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide 891125-55-6
N-isopropyl-2-((7-oxo-5-propyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide 891125-63-6
3-((2-(2,6-dimethylmorpholino)-2-oxoethyl)thio)-5-propyl-[1,2,4]triazolo[4,3-a]pyrimidin-7(8H)-one 891125-87-4
N-(3-fluorophenyl)-2-((7-oxo-5-propyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide 891126-03-7
N-(4-fluorophenyl)-2-((7-oxo-5-propyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide 891126-11-7
N-(4-bromophenyl)-2-((7-oxo-5-propyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide 891126-35-5
N-(2,4-difluorophenyl)-2-((7-oxo-5-propyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide 891126-43-5
N-(3-chloro-4-methylphenyl)-2-((7-oxo-5-propyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide 891126-59-3
N-(5-chloro-2-methoxyphenyl)-2-((7-oxo-5-propyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide 895005-97-7
2-((7-oxo-5-propyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)-N-(3-(trifluoromethyl)phenyl)acetamide 895006-11-8
N-(2-chlorobenzyl)-2-((7-oxo-5-propyl-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetamide 895006-46-9