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
1-methanesulfonyl-N-(4-methoxy-1,3-benzothiazol-2-yl)piperidine-4-carboxamide	1-methanesulfonyl-N-(4-methoxy-1,3-benzothiazol-2-yl)piperidine-4-carboxamide	分子量：369.5 密度：N/A 沸点：N/A 熔点：N/A	1021214-80-1	C₁₅H₁₉N₃O₄S₂
1-methanesulfonyl-N-(2-methyl-1,3-benzothiazol-6-yl)piperidine-4-carboxamide	1-methanesulfonyl-N-(2-methyl-1,3-benzothiazol-6-yl)piperidine-4-carboxamide	分子量：353.5 密度：N/A 沸点：N/A 熔点：N/A	1021214-87-8	C₁₅H₁₉N₃O₃S₂
N-(6-acetamidobenzo[d]thiazol-2-yl)-1-(methylsulfonyl)piperidine-4-carboxamide	N-(6-acetamidobenzo[d]thiazol-2-yl)-1-(methylsulfonyl)piperidine-4-carboxamide	分子量：396.5 密度：N/A 沸点：N/A 熔点：N/A	1021214-89-0	C₁₆H₂₀N₄O₄S₂
1-methanesulfonyl-N-[4-(4-methoxyphenyl)-1,3-thiazol-2-yl]piperidine-4-carboxamide	1-methanesulfonyl-N-[4-(4-methoxyphenyl)-1,3-thiazol-2-yl]piperidine-4-carboxamide	分子量：395.5 密度：N/A 沸点：N/A 熔点：N/A	1021214-91-4	C₁₇H₂₁N₃O₄S₂
N-(4,5-diphenylthiazol-2-yl)-1-(methylsulfonyl)piperidine-4-carboxamide	N-(4,5-diphenylthiazol-2-yl)-1-(methylsulfonyl)piperidine-4-carboxamide	分子量：441.6 密度：N/A 沸点：N/A 熔点：N/A	1021265-67-7	C₂₂H₂₃N₃O₃S₂
1-methanesulfonyl-N-[4-(pyridin-3-yl)-1,3-thiazol-2-yl]piperidine-4-carboxamide	1-methanesulfonyl-N-[4-(pyridin-3-yl)-1,3-thiazol-2-yl]piperidine-4-carboxamide	分子量：366.5 密度：N/A 沸点：N/A 熔点：N/A	1021214-93-6	C₁₅H₁₈N₄O₃S₂
1-(methylsulfonyl)-N-(4-(2-oxo-2H-chromen-3-yl)thiazol-2-yl)piperidine-4-carboxamide	1-(methylsulfonyl)-N-(4-(2-oxo-2H-chromen-3-yl)thiazol-2-yl)piperidine-4-carboxamide	分子量：433.5 密度：N/A 沸点：N/A 熔点：N/A	1021265-69-9	C₁₉H₁₉N₃O₅S₂
N-[4-(3,4-dichlorophenyl)-1,3-thiazol-2-yl]-1-methanesulfonylpiperidine-4-carboxamide	N-[4-(3,4-dichlorophenyl)-1,3-thiazol-2-yl]-1-methanesulfonylpiperidine-4-carboxamide	分子量：434.4 密度：N/A 沸点：N/A 熔点：N/A	1021265-71-3	C₁₆H₁₇Cl₂N₃O₃S₂
N-[4-(1H-1,3-benzodiazol-2-yl)phenyl]-1-methanesulfonylpiperidine-4-carboxamide	N-[4-(1H-1,3-benzodiazol-2-yl)phenyl]-1-methanesulfonylpiperidine-4-carboxamide	分子量：398.5 密度：N/A 沸点：N/A 熔点：N/A	1058381-46-6	C₂₀H₂₂N₄O₃S
N-(2-(benzo[d]thiazol-2-yl)phenyl)-1-(methylsulfonyl)piperidine-4-carboxamide	N-(2-(benzo[d]thiazol-2-yl)phenyl)-1-(methylsulfonyl)piperidine-4-carboxamide	分子量：415.5 密度：N/A 沸点：N/A 熔点：N/A	1021265-75-7	C₂₀H₂₁N₃O₃S₂
Methyl 3-(1-methanesulfonylpiperidine-4-amido)-5-phenylthiophene-2-carboxylate	Methyl 3-(1-methanesulfonylpiperidine-4-amido)-5-phenylthiophene-2-carboxylate	分子量：422.5 密度：N/A 沸点：N/A 熔点：N/A	1021215-01-9	C₁₉H₂₂N₂O₅S₂
Ethyl 3-(1-methanesulfonylpiperidine-4-amido)-1-benzofuran-2-carboxylate	Ethyl 3-(1-methanesulfonylpiperidine-4-amido)-1-benzofuran-2-carboxylate	分子量：394.4 密度：N/A 沸点：N/A 熔点：N/A	1021265-77-9	C₁₈H₂₂N₂O₆S
2-[4-(1-Methanesulfonylpiperidine-4-carbonyl)piperazin-1-yl]-1,3-benzothiazole	2-[4-(1-Methanesulfonylpiperidine-4-carbonyl)piperazin-1-yl]-1,3-benzothiazole	分子量：408.5 密度：N/A 沸点：N/A 熔点：N/A	1021215-07-5	C₁₈H₂₄N₄O₃S₂
1-(1,3-Benzodioxol-5-yl)-1H-imidazole-4-carboxylic acid	1-(1,3-Benzodioxol-5-yl)-1H-imidazole-4-carboxylic acid	分子量：232.19 密度：N/A 沸点：N/A 熔点：N/A	445302-23-8	C₁₁H₈N₂O₄
N-{4H-chromeno[4,3-d][1,3]thiazol-2-yl}-1-methanesulfonylpiperidine-4-carboxamide	N-{4H-chromeno[4,3-d][1,3]thiazol-2-yl}-1-methanesulfonylpiperidine-4-carboxamide	分子量：393.5 密度：N/A 沸点：N/A 熔点：N/A	1021265-79-1	C₁₇H₁₉N₃O₄S₂
N-[4-(4-ethoxyphenyl)-5-methyl-1,3-thiazol-2-yl]-1-methanesulfonylpiperidine-4-carboxamide	N-[4-(4-ethoxyphenyl)-5-methyl-1,3-thiazol-2-yl]-1-methanesulfonylpiperidine-4-carboxamide	分子量：423.6 密度：N/A 沸点：N/A 熔点：N/A	1021215-12-2	C₁₉H₂₅N₃O₄S₂
1-Methanesulfonyl-N-(1,3-thiazol-2-YL)piperidine-4-carboxamide	1-Methanesulfonyl-N-(1,3-thiazol-2-YL)piperidine-4-carboxamide	分子量：289.4 密度：N/A 沸点：N/A 熔点：N/A	1021265-84-8	C₁₀H₁₅N₃O₃S₂
Ethyl 2-(1-methanesulfonylpiperidine-4-amido)-1,3-benzothiazole-6-carboxylate	Ethyl 2-(1-methanesulfonylpiperidine-4-amido)-1,3-benzothiazole-6-carboxylate	分子量：411.5 密度：N/A 沸点：N/A 熔点：N/A	1021215-14-4	C₁₇H₂₁N₃O₅S₂
N-(4,5-dimethyl-1,3-benzothiazol-2-yl)-1-methanesulfonylpiperidine-4-carboxamide	N-(4,5-dimethyl-1,3-benzothiazol-2-yl)-1-methanesulfonylpiperidine-4-carboxamide	分子量：367.5 密度：N/A 沸点：N/A 熔点：N/A	1021265-87-1	C₁₆H₂₁N₃O₃S₂
N-(3-cyanothiophen-2-yl)-1-(methylsulfonyl)piperidine-4-carboxamide	N-(3-cyanothiophen-2-yl)-1-(methylsulfonyl)piperidine-4-carboxamide	分子量：313.4 密度：N/A 沸点：N/A 熔点：N/A	1058210-54-0	C₁₂H₁₅N₃O₃S₂
N-(3-carbamoylthiophen-2-yl)-1-methanesulfonylpiperidine-4-carboxamide	N-(3-carbamoylthiophen-2-yl)-1-methanesulfonylpiperidine-4-carboxamide	分子量：331.4 密度：N/A 沸点：N/A 熔点：N/A	1021215-15-5	C₁₂H₁₇N₃O₄S₂
N-[5-(4-fluorophenyl)-1,3,4-oxadiazol-2-yl]-1-methanesulfonylpiperidine-4-carboxamide	N-[5-(4-fluorophenyl)-1,3,4-oxadiazol-2-yl]-1-methanesulfonylpiperidine-4-carboxamide	分子量：368.4 密度：N/A 沸点：N/A 熔点：N/A	1021265-90-6	C₁₅H₁₇FN₄O₄S
N-(4-fluoro-1,3-benzothiazol-2-yl)-1-methanesulfonylpiperidine-4-carboxamide	N-(4-fluoro-1,3-benzothiazol-2-yl)-1-methanesulfonylpiperidine-4-carboxamide	分子量：357.4 密度：N/A 沸点：N/A 熔点：N/A	1021265-93-9	C₁₄H₁₆FN₃O₃S₂
N-(5,7-dimethyl-1,3-benzothiazol-2-yl)-1-methanesulfonylpiperidine-4-carboxamide	N-(5,7-dimethyl-1,3-benzothiazol-2-yl)-1-methanesulfonylpiperidine-4-carboxamide	分子量：367.5 密度：N/A 沸点：N/A 熔点：N/A	1021215-18-8	C₁₆H₂₁N₃O₃S₂
N-[5-(2,3-dihydro-1,4-benzodioxin-6-yl)-1,3,4-oxadiazol-2-yl]-1-methanesulfonylpiperidine-4-carboxamide	N-[5-(2,3-dihydro-1,4-benzodioxin-6-yl)-1,3,4-oxadiazol-2-yl]-1-methanesulfonylpiperidine-4-carboxamide	分子量：408.4 密度：N/A 沸点：N/A 熔点：N/A	1021215-20-2	C₁₇H₂₀N₄O₆S
1-methanesulfonyl-N-[5-(5,6,7,8-tetrahydronaphthalen-2-yl)-1,3,4-oxadiazol-2-yl]piperidine-4-carboxamide	1-methanesulfonyl-N-[5-(5,6,7,8-tetrahydronaphthalen-2-yl)-1,3,4-oxadiazol-2-yl]piperidine-4-carboxamide	分子量：404.5 密度：N/A 沸点：N/A 熔点：N/A	1021265-99-5	C₁₉H₂₄N₄O₄S
1-methanesulfonyl-N-[6-(propan-2-yl)-1,3-benzothiazol-2-yl]piperidine-4-carboxamide	1-methanesulfonyl-N-[6-(propan-2-yl)-1,3-benzothiazol-2-yl]piperidine-4-carboxamide	分子量：381.5 密度：N/A 沸点：N/A 熔点：N/A	1021266-01-2	C₁₇H₂₃N₃O₃S₂
2-[4-(1-Methanesulfonylpiperidine-4-carbonyl)piperazin-1-yl]-4-methoxy-1,3-benzothiazole	2-[4-(1-Methanesulfonylpiperidine-4-carbonyl)piperazin-1-yl]-4-methoxy-1,3-benzothiazole	分子量：438.6 密度：N/A 沸点：N/A 熔点：N/A	1021215-24-6	C₁₉H₂₆N₄O₄S₂
1-methanesulfonyl-N-[4-(methylsulfanyl)-1,3-benzothiazol-2-yl]piperidine-4-carboxamide	1-methanesulfonyl-N-[4-(methylsulfanyl)-1,3-benzothiazol-2-yl]piperidine-4-carboxamide	分子量：385.5 密度：N/A 沸点：N/A 熔点：N/A	1021266-05-6	C₁₅H₁₉N₃O₃S₃
Ethyl 2-(1-methanesulfonylpiperidine-4-amido)-1-benzothiophene-3-carboxylate	Ethyl 2-(1-methanesulfonylpiperidine-4-amido)-1-benzothiophene-3-carboxylate	分子量：410.5 密度：N/A 沸点：N/A 熔点：N/A	1021215-28-0	C₁₈H₂₂N₂O₅S₂
N-[4-(1-benzofuran-2-yl)-1,3-thiazol-2-yl]-1-methanesulfonylpiperidine-4-carboxamide	N-[4-(1-benzofuran-2-yl)-1,3-thiazol-2-yl]-1-methanesulfonylpiperidine-4-carboxamide	分子量：405.5 密度：N/A 沸点：N/A 熔点：N/A	1021266-07-8	C₁₈H₁₉N₃O₄S₂
N-(6-fluorobenzo[d]thiazol-2-yl)-1-(methylsulfonyl)-N-(pyridin-2-ylmethyl)piperidine-4-carboxamide	N-(6-fluorobenzo[d]thiazol-2-yl)-1-(methylsulfonyl)-N-(pyridin-2-ylmethyl)piperidine-4-carboxamide	分子量：448.5 密度：N/A 沸点：N/A 熔点：N/A	1021266-09-0	C₂₀H₂₁FN₄O₃S₂
N-(4-fluorobenzo[d]thiazol-2-yl)-1-(methylsulfonyl)-N-(pyridin-3-ylmethyl)piperidine-4-carboxamide	N-(4-fluorobenzo[d]thiazol-2-yl)-1-(methylsulfonyl)-N-(pyridin-3-ylmethyl)piperidine-4-carboxamide	分子量：448.5 密度：N/A 沸点：N/A 熔点：N/A	1021266-10-3	C₂₀H₂₁FN₄O₃S₂
N-(2-((3-phenyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)oxy)ethyl)-2-(m-tolyloxy)acetamide	N-(2-((3-phenyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)oxy)ethyl)-2-(m-tolyloxy)acetamide	分子量：403.4 密度：N/A 沸点：N/A 熔点：N/A	1060298-73-8	C₂₂H₂₁N₅O₃
(2-Cyclohexylphenyl)boronic acid	(2-Cyclohexylphenyl)boronic acid	分子量：204.08 密度：N/A 沸点：N/A 熔点：N/A	1380066-46-5	C₁₂H₁₇BO₂
Methyl 2-[(cyclopropylmethyl)amino]acetate	Methyl 2-[(cyclopropylmethyl)amino]acetate	分子量：143.18 密度：N/A 沸点：N/A 熔点：N/A	1020963-85-2	C₇H₁₃NO₂
2-{[(Benzyloxy)carbonyl]amino}-3-hydroxy-4-methylpentanoic acid	2-{[(Benzyloxy)carbonyl]amino}-3-hydroxy-4-methylpentanoic acid	分子量：281.30 密度：N/A 沸点：N/A 熔点：N/A	1822483-72-6	C₁₄H₁₉NO₅
Tert-butyl 2-amino-3-hydroxy-4-methylpentanoate	Tert-butyl 2-amino-3-hydroxy-4-methylpentanoate	分子量：203.28 密度：N/A 沸点：N/A 熔点：N/A	1822527-14-9	C₁₀H₂₁NO₃
6-(Diethylamino)-1,3-dimethyl-1H-Pyrazolo[3,4-b]pyridine-5-carboxaldehyde	6-(Diethylamino)-1,3-dimethyl-1H-Pyrazolo[3,4-b]pyridine-5-carboxaldehyde	分子量：246.31 密度：N/A 沸点：N/A 熔点：N/A	1018497-82-9	C₁₃H₁₈N₄O
[2-({1-[(2-chlorophenyl)methyl]-1H-pyrazol-4-yl}methylidene)-2-cyanoacetyl]urea	[2-({1-[(2-chlorophenyl)methyl]-1H-pyrazol-4-yl}methylidene)-2-cyanoacetyl]urea	分子量：329.74 密度：N/A 沸点：N/A 熔点：N/A	1181482-26-7	C₁₅H₁₂ClN₅O₂
2-Cyano-3-[2-(4-fluorophenyl)-1,3-thiazol-4-yl]prop-2-enamide	2-Cyano-3-[2-(4-fluorophenyl)-1,3-thiazol-4-yl]prop-2-enamide	分子量：273.29 密度：N/A 沸点：N/A 熔点：N/A	1390869-97-2	C₁₃H₈FN₃OS
1H-Pyrazolo[3,4-b]pyridine-5-methanamine,1,3-dimethyl-6-(4-morpholinyl)-	1H-Pyrazolo[3,4-b]pyridine-5-methanamine,1,3-dimethyl-6-(4-morpholinyl)-	分子量：261.32 密度：N/A 沸点：N/A 熔点：N/A	1018250-62-8	C₁₃H₁₉N₅O
3-Chloro-1-oxo-2-propyl-1,2-dihydroisoquinoline-4-carbaldehyde	3-Chloro-1-oxo-2-propyl-1,2-dihydroisoquinoline-4-carbaldehyde	分子量：249.69 密度：N/A 沸点：N/A 熔点：N/A	1018275-84-7	C₁₃H₁₂ClNO₂
3-Chloro-2-isobutyl-1-oxo-1,2-dihydroisoquinoline-4-carbaldehyde	3-Chloro-2-isobutyl-1-oxo-1,2-dihydroisoquinoline-4-carbaldehyde	分子量：263.72 密度：N/A 沸点：N/A 熔点：N/A	1018498-22-0	C₁₄H₁₄ClNO₂
3-Chloro-2-(2-methoxyethyl)-1-oxo-1,2-dihydroisoquinoline-4-carbaldehyde	3-Chloro-2-(2-methoxyethyl)-1-oxo-1,2-dihydroisoquinoline-4-carbaldehyde	分子量：265.69 密度：N/A 沸点：N/A 熔点：N/A	1018566-34-1	C₁₃H₁₂ClNO₃
3-Chloro-2-(3-methoxypropyl)-1-oxo-1,2-dihydroisoquinoline-4-carbaldehyde	3-Chloro-2-(3-methoxypropyl)-1-oxo-1,2-dihydroisoquinoline-4-carbaldehyde	分子量：279.72 密度：N/A 沸点：N/A 熔点：N/A	1018250-82-2	C₁₄H₁₄ClNO₃
3-Chloro-2-cyclopropyl-1-oxo-1,2-dihydroisoquinoline-4-carbaldehyde	3-Chloro-2-cyclopropyl-1-oxo-1,2-dihydroisoquinoline-4-carbaldehyde	分子量：247.67 密度：N/A 沸点：N/A 熔点：N/A	1018275-87-0	C₁₃H₁₀ClNO₂
3-Chloro-2-cyclopentyl-1-oxo-1,2-dihydroisoquinoline-4-carbaldehyde	3-Chloro-2-cyclopentyl-1-oxo-1,2-dihydroisoquinoline-4-carbaldehyde	分子量：275.73 密度：N/A 沸点：N/A 熔点：N/A	1018498-25-3	C₁₅H₁₄ClNO₂
2-Benzyl-3-chloro-1-oxo-1,2-dihydroisoquinoline-4-carbaldehyde	2-Benzyl-3-chloro-1-oxo-1,2-dihydroisoquinoline-4-carbaldehyde	分子量：297.7 密度：N/A 沸点：N/A 熔点：N/A	1018275-90-5	C₁₇H₁₂ClNO₂
4-Isopropyl-2-piperazin-1-yl-1,3-benzothiazole	4-Isopropyl-2-piperazin-1-yl-1,3-benzothiazole	分子量：261.39 密度：N/A 沸点：N/A 熔点：N/A	1018251-30-3	C₁₄H₁₉N₃S