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
Methyl 2-cyclopropyl-4-(piperidin-4-yl)pyrimidine-5-carboxylate	Methyl 2-cyclopropyl-4-(piperidin-4-yl)pyrimidine-5-carboxylate	分子量：261.32 密度：N/A 沸点：N/A 熔点：N/A	1707594-77-1	C₁₄H₁₉N₃O₂
4-(1-(tert-Butoxycarbonyl)piperidin-4-yl)pyrimidine-5-carboxylic acid	4-(1-(tert-Butoxycarbonyl)piperidin-4-yl)pyrimidine-5-carboxylic acid	分子量：307.34 密度：N/A 沸点：N/A 熔点：N/A	1710194-79-8	C₁₅H₂₁N₃O₄
4-(1-(tert-Butoxycarbonyl)piperidin-4-yl)-2-cyclopropylpyrimidine-5-carboxylic acid	4-(1-(tert-Butoxycarbonyl)piperidin-4-yl)-2-cyclopropylpyrimidine-5-carboxylic acid	分子量：347.4 密度：N/A 沸点：N/A 熔点：N/A	1707566-57-1	C₁₈H₂₅N₃O₄
4-(Pyridin-4-yl)-2-(pyrrolidin-1-yl)pyrimidine-5-carboxylic acid	4-(Pyridin-4-yl)-2-(pyrrolidin-1-yl)pyrimidine-5-carboxylic acid	分子量：270.29 密度：N/A 沸点：N/A 熔点：N/A	1708428-32-3	C₁₄H₁₄N₄O₂
2-(Diethylamino)-4-(pyridin-4-yl)pyrimidine-5-carboxylic acid	2-(Diethylamino)-4-(pyridin-4-yl)pyrimidine-5-carboxylic acid	分子量：272.30 密度：N/A 沸点：N/A 熔点：N/A	1713462-89-5	C₁₄H₁₆N₄O₂
4-(Pyridin-3-yl)-2-(pyrrolidin-1-yl)pyrimidine-5-carboxylic acid	4-(Pyridin-3-yl)-2-(pyrrolidin-1-yl)pyrimidine-5-carboxylic acid	分子量：270.29 密度：N/A 沸点：N/A 熔点：N/A	1707735-48-5	C₁₄H₁₄N₄O₂
4-(Pyridin-2-yl)-2-(pyrrolidin-1-yl)pyrimidine-5-carboxylic acid	4-(Pyridin-2-yl)-2-(pyrrolidin-1-yl)pyrimidine-5-carboxylic acid	分子量：270.29 密度：N/A 沸点：N/A 熔点：N/A	1708268-67-0	C₁₄H₁₄N₄O₂
2-(Diethylamino)-4-(pyridin-2-yl)pyrimidine-5-carboxylic acid	2-(Diethylamino)-4-(pyridin-2-yl)pyrimidine-5-carboxylic acid	分子量：272.30 密度：N/A 沸点：N/A 熔点：N/A	1708080-62-9	C₁₄H₁₆N₄O₂
4-(Cyclopropylmethyl)-2,3,4,5-tetrahydrobenzo[f][1,4]oxazepine-7-carboxylic acid	4-(Cyclopropylmethyl)-2,3,4,5-tetrahydrobenzo[f][1,4]oxazepine-7-carboxylic acid	分子量：247.29 密度：N/A 沸点：N/A 熔点：N/A	1707594-78-2	C₁₄H₁₇NO₃
4-Ethyl-3-oxo-2,3,4,5-tetrahydrobenzo[f][1,4]oxazepine-7-carboxylic acid	4-Ethyl-3-oxo-2,3,4,5-tetrahydrobenzo[f][1,4]oxazepine-7-carboxylic acid	分子量：235.24 密度：N/A 沸点：N/A 熔点：N/A	1707566-59-3	C₁₂H₁₃NO₄
2-(4-Aminopiperidin-1-yl)-1-ethyl-1H-imidazol-5(4H)-one	2-(4-Aminopiperidin-1-yl)-1-ethyl-1H-imidazol-5(4H)-one	分子量：210.28 密度：N/A 沸点：N/A 熔点：N/A	1708268-70-5	C₁₀H₁₈N₄O
4-Cyclopropyl-3-oxo-2,3,4,5-tetrahydro-1,4-benzoxazepine-7-carboxylic acid	4-Cyclopropyl-3-oxo-2,3,4,5-tetrahydro-1,4-benzoxazepine-7-carboxylic acid	分子量：247.25 密度：N/A 沸点：N/A 熔点：N/A	1708428-33-4	C₁₃H₁₃NO₄
5-Ethyl-4-oxo-4,5,6,7-tetrahydro-[1,2,3]triazolo[1,5-a]pyrazine-3-carboxylic acid	5-Ethyl-4-oxo-4,5,6,7-tetrahydro-[1,2,3]triazolo[1,5-a]pyrazine-3-carboxylic acid	分子量：210.19 密度：N/A 沸点：N/A 熔点：N/A	1707399-96-9	C₈H₁₀N₄O₃
5-(Cyclopropylmethyl)-4-oxo-4,5,6,7-tetrahydro-[1,2,3]triazolo[1,5-a]pyrazine-3-carboxylic acid	5-(Cyclopropylmethyl)-4-oxo-4,5,6,7-tetrahydro-[1,2,3]triazolo[1,5-a]pyrazine-3-carboxylic acid	分子量：236.23 密度：N/A 沸点：N/A 熔点：N/A	1707735-49-6	C₁₀H₁₂N₄O₃
1-Methyl-2lambda6-thia-1-azaspiro[4.5]decane-2,2,4-trione	1-Methyl-2lambda6-thia-1-azaspiro[4.5]decane-2,2,4-trione	分子量：217.29 密度：N/A 沸点：N/A 熔点：N/A	1708268-69-2	C₉H₁₅NO₃S
1-Ethyl-2-thia-1-azaspiro[4.5]decan-4-one 2,2-dioxide	1-Ethyl-2-thia-1-azaspiro[4.5]decan-4-one 2,2-dioxide	分子量：231.31 密度：N/A 沸点：N/A 熔点：N/A	1707394-60-2	C₁₀H₁₇NO₃S
Methyl 1-phenyl-5-(piperidin-4-yl)-1H-1,2,3-triazole-4-carboxylate	Methyl 1-phenyl-5-(piperidin-4-yl)-1H-1,2,3-triazole-4-carboxylate	分子量：286.33 密度：N/A 沸点：N/A 熔点：N/A	1707375-67-4	C₁₅H₁₈N₄O₂
N-Methyl-1-phenyl-5-(piperidin-4-yl)-1H-1,2,3-triazole-4-carboxamide	N-Methyl-1-phenyl-5-(piperidin-4-yl)-1H-1,2,3-triazole-4-carboxamide	分子量：285.34 密度：N/A 沸点：N/A 熔点：N/A	1708370-84-6	C₁₅H₁₉N₅O
4-(5,6,7,8-Tetrahydropyrido[4,3-d]pyrimidin-2-yl)thiomorpholine	4-(5,6,7,8-Tetrahydropyrido[4,3-d]pyrimidin-2-yl)thiomorpholine	分子量：236.34 密度：N/A 沸点：N/A 熔点：N/A	1713639-79-2	C₁₁H₁₆N₄S
2-(Azepan-1-yl)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine	2-(Azepan-1-yl)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine	分子量：232.32 密度：N/A 沸点：N/A 熔点：N/A	1708013-57-3	C₁₃H₂₀N₄
1-Methyl-2-(piperazin-1-yl)-1H-imidazol-5(4H)-one	1-Methyl-2-(piperazin-1-yl)-1H-imidazol-5(4H)-one	分子量：182.22 密度：N/A 沸点：N/A 熔点：N/A	1707735-51-0	C₈H₁₄N₄O
2-(4-Aminopiperidin-1-yl)-1-phenyl-1H-imidazol-5(4H)-one	2-(4-Aminopiperidin-1-yl)-1-phenyl-1H-imidazol-5(4H)-one	分子量：258.32 密度：N/A 沸点：N/A 熔点：N/A	1707375-68-5	C₁₄H₁₈N₄O
2-(4-Aminopiperidin-1-yl)-1-methyl-1H-imidazol-5(4H)-one	2-(4-Aminopiperidin-1-yl)-1-methyl-1H-imidazol-5(4H)-one	分子量：196.25 密度：N/A 沸点：N/A 熔点：N/A	1707394-62-4	C₉H₁₆N₄O
1-(1-Ethyl-5-oxo-4,5-dihydro-1H-imidazol-2-yl)piperidine-4-carboxylic acid	1-(1-Ethyl-5-oxo-4,5-dihydro-1H-imidazol-2-yl)piperidine-4-carboxylic acid	分子量：239.27 密度：N/A 沸点：N/A 熔点：N/A	1707566-61-7	C₁₁H₁₇N₃O₃
1-(1-Methyl-5-oxo-4,5-dihydro-1H-imidazol-2-yl)piperidine-4-carboxylic acid	1-(1-Methyl-5-oxo-4,5-dihydro-1H-imidazol-2-yl)piperidine-4-carboxylic acid	分子量：225.24 密度：N/A 沸点：N/A 熔点：N/A	1710845-72-9	C₁₀H₁₅N₃O₃
1-(5-Oxo-1-phenyl-4,5-dihydro-1H-imidazol-2-yl)piperidine-4-carboxylic acid	1-(5-Oxo-1-phenyl-4,5-dihydro-1H-imidazol-2-yl)piperidine-4-carboxylic acid	分子量：287.31 密度：N/A 沸点：N/A 熔点：N/A	1708080-66-3	C₁₅H₁₇N₃O₃
1-(3-methyl-1H-pyrazol-5-yl)piperidine-4-carboxylic acid	1-(3-methyl-1H-pyrazol-5-yl)piperidine-4-carboxylic acid	分子量：209.24 密度：N/A 沸点：N/A 熔点：N/A	2169500-86-9	C₁₀H₁₅N₃O₂
1-(5-Cyclopropyl-1H-pyrazol-3-yl)piperidine-4-carboxylic acid	1-(5-Cyclopropyl-1H-pyrazol-3-yl)piperidine-4-carboxylic acid	分子量：235.28 密度：N/A 沸点：N/A 熔点：N/A	1706542-45-1	C₁₂H₁₇N₃O₂
3-(Aminomethyl)-7-cyclopropyl-[1,2,4]triazolo[4,3-a]pyrazin-8(7H)-one	3-(Aminomethyl)-7-cyclopropyl-[1,2,4]triazolo[4,3-a]pyrazin-8(7H)-one	分子量：205.22 密度：N/A 沸点：N/A 熔点：N/A	1710845-76-3	C₉H₁₁N₅O
3-(7-Cyclopropyl-8-oxo-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-3-yl)propanoic acid	3-(7-Cyclopropyl-8-oxo-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-3-yl)propanoic acid	分子量：248.24 密度：N/A 沸点：N/A 熔点：N/A	1707735-50-9	C₁₁H₁₂N₄O₃
3-(Chloromethyl)-7-cyclopropyl-[1,2,4]triazolo[4,3-a]pyrazin-8(7H)-one	3-(Chloromethyl)-7-cyclopropyl-[1,2,4]triazolo[4,3-a]pyrazin-8(7H)-one	分子量：224.65 密度：N/A 沸点：N/A 熔点：N/A	1707375-69-6	C₉H₉ClN₄O
2-(4-Cyclopropyl-2,3-dioxo-3,4-dihydropyrazin-1(2H)-yl)acetic acid	2-(4-Cyclopropyl-2,3-dioxo-3,4-dihydropyrazin-1(2H)-yl)acetic acid	分子量：210.19 密度：N/A 沸点：N/A 熔点：N/A	1708268-71-6	C₉H₁₀N₂O₄
2-(Ethylsulfonyl)isonicotinic acid	2-(Ethylsulfonyl)isonicotinic acid	分子量：215.23 密度：N/A 沸点：N/A 熔点：N/A	1707372-93-7	C₈H₉NO₄S
2-(Phenylsulfonyl)isonicotinic acid	2-(Phenylsulfonyl)isonicotinic acid	分子量：263.27 密度：N/A 沸点：N/A 熔点：N/A	1713639-83-8	C₁₂H₉NO₄S
2-(2-Methyl-4-oxo-6,7-dihydropyrazolo[1,5-a]pyrazin-5(4H)-yl)acetic acid	2-(2-Methyl-4-oxo-6,7-dihydropyrazolo[1,5-a]pyrazin-5(4H)-yl)acetic acid	分子量：209.20 密度：N/A 沸点：N/A 熔点：N/A	1708013-60-8	C₉H₁₁N₃O₃
2-(2-Cyclopropyl-4-oxo-6,7-dihydropyrazolo[1,5-a]pyrazin-5(4H)-yl)acetic acid	2-(2-Cyclopropyl-4-oxo-6,7-dihydropyrazolo[1,5-a]pyrazin-5(4H)-yl)acetic acid	分子量：235.24 密度：N/A 沸点：N/A 熔点：N/A	1713463-06-9	C₁₁H₁₃N₃O₃
2-(2-(Furan-2-yl)-4-oxo-6,7-dihydropyrazolo[1,5-a]pyrazin-5(4H)-yl)acetic acid	2-(2-(Furan-2-yl)-4-oxo-6,7-dihydropyrazolo[1,5-a]pyrazin-5(4H)-yl)acetic acid	分子量：261.23 密度：N/A 沸点：N/A 熔点：N/A	1708428-35-6	C₁₂H₁₁N₃O₄
2-(4-Oxo-2-(thiophen-2-yl)-6,7-dihydropyrazolo[1,5-a]pyrazin-5(4H)-yl)acetic acid	2-(4-Oxo-2-(thiophen-2-yl)-6,7-dihydropyrazolo[1,5-a]pyrazin-5(4H)-yl)acetic acid	分子量：277.30 密度：N/A 沸点：N/A 熔点：N/A	1707735-52-1	C₁₂H₁₁N₃O₃S
[4-(3-Methyl-[1,2,4]oxadiazol-5-yl)-imidazol-1-yl]-acetic acid	[4-(3-Methyl-[1,2,4]oxadiazol-5-yl)-imidazol-1-yl]-acetic acid	分子量：208.17 密度：N/A 沸点：N/A 熔点：N/A	1710845-78-5	C₈H₈N₄O₃
2-(4-(3-Cyclopropyl-1,2,4-oxadiazol-5-yl)-1H-imidazol-1-yl)acetic acid	2-(4-(3-Cyclopropyl-1,2,4-oxadiazol-5-yl)-1H-imidazol-1-yl)acetic acid	分子量：234.21 密度：N/A 沸点：N/A 熔点：N/A	1707375-70-9	C₁₀H₁₀N₄O₃
1-(6-(Methylsulfonyl)pyrimidin-4-yl)piperidine-4-carboxylic acid	1-(6-(Methylsulfonyl)pyrimidin-4-yl)piperidine-4-carboxylic acid	分子量：285.32 密度：N/A 沸点：N/A 熔点：N/A	1707594-81-7	C₁₁H₁₅N₃O₄S
4-(Methylsulfonyl)-6-(piperazin-1-yl)pyrimidine	4-(Methylsulfonyl)-6-(piperazin-1-yl)pyrimidine	分子量：242.30 密度：N/A 沸点：N/A 熔点：N/A	1710194-83-4	C₉H₁₄N₄O₂S
2-(1-Benzyl-7-oxo-1H-pyrrolo[2,3-c]pyridin-6(7H)-yl)acetic acid	2-(1-Benzyl-7-oxo-1H-pyrrolo[2,3-c]pyridin-6(7H)-yl)acetic acid	分子量：282.29 密度：N/A 沸点：N/A 熔点：N/A	1708370-90-4	C₁₆H₁₄N₂O₃
2-(1-(Cyclopropylmethyl)-7-oxo-1H-pyrrolo[2,3-c]pyridin-6(7H)-yl)acetic acid	2-(1-(Cyclopropylmethyl)-7-oxo-1H-pyrrolo[2,3-c]pyridin-6(7H)-yl)acetic acid	分子量：246.26 密度：N/A 沸点：N/A 熔点：N/A	1708013-62-0	C₁₃H₁₄N₂O₃
4-Amino-N-methyl-2-(piperazin-1-yl)pyrimidine-5-carboxamide	4-Amino-N-methyl-2-(piperazin-1-yl)pyrimidine-5-carboxamide	分子量：236.27 密度：N/A 沸点：N/A 熔点：N/A	1708428-36-7	C₁₀H₁₆N₆O
4-Amino-N-ethyl-2-(piperazin-1-yl)pyrimidine-5-carboxamide	4-Amino-N-ethyl-2-(piperazin-1-yl)pyrimidine-5-carboxamide	分子量：250.30 密度：N/A 沸点：N/A 熔点：N/A	105161-82-8	C₁₁H₁₈N₆O
4-Amino-N-cyclopropyl-2-(piperazin-1-yl)pyrimidine-5-carboxamide	4-Amino-N-cyclopropyl-2-(piperazin-1-yl)pyrimidine-5-carboxamide	分子量：262.31 密度：N/A 沸点：N/A 熔点：N/A	1710674-79-5	C₁₂H₁₈N₆O
2-(Piperazin-1-yl)-3-(1H-pyrazol-1-yl)pyrazine	2-(Piperazin-1-yl)-3-(1H-pyrazol-1-yl)pyrazine	分子量：230.27 密度：N/A 沸点：N/A 熔点：N/A	1713639-86-1	C₁₁H₁₄N₆
1-(6-(1H-Pyrazol-1-yl)pyrimidin-4-yl)piperidine-4-carboxylic acid	1-(6-(1H-Pyrazol-1-yl)pyrimidin-4-yl)piperidine-4-carboxylic acid	分子量：273.29 密度：N/A 沸点：N/A 熔点：N/A	1707566-63-9	C₁₃H₁₅N₅O₂
1-(6-(1H-Pyrazol-1-yl)pyrimidin-4-yl)piperidin-4-amine	1-(6-(1H-Pyrazol-1-yl)pyrimidin-4-yl)piperidin-4-amine	分子量：244.30 密度：N/A 沸点：N/A 熔点：N/A	1708080-69-6	C₁₂H₁₆N₆