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
(2Z)-N-(4-chlorophenyl)-2-(hydroxyimino)-6-methoxychromane-3-carboxamide	(2Z)-N-(4-chlorophenyl)-2-(hydroxyimino)-6-methoxychromane-3-carboxamide	分子量：346.8 密度：N/A 沸点：N/A 熔点：N/A	912774-14-2	C₁₇H₁₅ClN₂O₄
(2Z)-2-(hydroxyimino)-N-(3-methylphenyl)chromane-3-carboxamide	(2Z)-2-(hydroxyimino)-N-(3-methylphenyl)chromane-3-carboxamide	分子量：296.32 密度：N/A 沸点：N/A 熔点：N/A	912781-63-6	C₁₇H₁₆N₂O₃
(Z)-2-(acetoxyimino)-N-(3-fluorophenyl)-8-methoxy-2H-chromene-3-carboxamide	(Z)-2-(acetoxyimino)-N-(3-fluorophenyl)-8-methoxy-2H-chromene-3-carboxamide	分子量：370.3 密度：N/A 沸点：N/A 熔点：N/A	912791-77-6	C₁₉H₁₅FN₂O₅
3-Amino-1-(3-hydroxypiperidin-1-yl)propan-1-one	3-Amino-1-(3-hydroxypiperidin-1-yl)propan-1-one	分子量：172.22 密度：N/A 沸点：N/A 熔点：N/A	1154141-58-8	C₈H₁₆N₂O₂
1-(5-Chloro-1-isobutyl-1H-benzo[d]imidazol-2-yl)ethanamine	1-(5-Chloro-1-isobutyl-1H-benzo[d]imidazol-2-yl)ethanamine	分子量：251.75 密度：N/A 沸点：N/A 熔点：N/A	1243790-37-5	C₁₃H₁₈ClN₃
(2Z)-2-[(acetyloxy)imino]-N-(3,4-dimethylphenyl)-2H-chromene-3-carboxamide	(2Z)-2-[(acetyloxy)imino]-N-(3,4-dimethylphenyl)-2H-chromene-3-carboxamide	分子量：350.4 密度：N/A 沸点：N/A 熔点：N/A	931965-99-0	C₂₀H₁₈N₂O₄
(2Z)-2-[(acetyloxy)imino]-N-(3-chloro-4-methylphenyl)-2H-chromene-3-carboxamide	(2Z)-2-[(acetyloxy)imino]-N-(3-chloro-4-methylphenyl)-2H-chromene-3-carboxamide	分子量：370.8 密度：N/A 沸点：N/A 熔点：N/A	931314-71-5	C₁₉H₁₅ClN₂O₄
(2Z)-2-[(acetyloxy)imino]-N-(3,5-dimethylphenyl)-2H-chromene-3-carboxamide	(2Z)-2-[(acetyloxy)imino]-N-(3,5-dimethylphenyl)-2H-chromene-3-carboxamide	分子量：350.4 密度：N/A 沸点：N/A 熔点：N/A	931360-30-4	C₂₀H₁₈N₂O₄
2-[2-(1H-imidazol-1-yl)ethoxy]aniline	2-[2-(1H-imidazol-1-yl)ethoxy]aniline	分子量：203.24 密度：N/A 沸点：N/A 熔点：N/A	464913-73-3	C₁₁H₁₃N₃O
methyl 6-methyl-3,4-dihydro-2H-1,2,4-benzothiadiazine-3-carboxylate 1,1-dioxide	methyl 6-methyl-3,4-dihydro-2H-1,2,4-benzothiadiazine-3-carboxylate 1,1-dioxide	分子量：256.28 密度：N/A 沸点：N/A 熔点：N/A	931745-29-8	C₁₀H₁₂N₂O₄S
4-Hydroxy-2-(methylthio)quinoline-3-carboxylic acid	4-Hydroxy-2-(methylthio)quinoline-3-carboxylic acid	分子量：235.26 密度：N/A 沸点：N/A 熔点：N/A	873054-99-0	C₁₁H₉NO₃S
N-[4-(benzyloxy)phenyl]-5-(hydroxymethyl)-8-methyl-2-oxo-2H-pyrano[2,3-c]pyridine-3-carboxamide	N-[4-(benzyloxy)phenyl]-5-(hydroxymethyl)-8-methyl-2-oxo-2H-pyrano[2,3-c]pyridine-3-carboxamide	分子量：416.4 密度：N/A 沸点：N/A 熔点：N/A	1189878-77-0	C₂₄H₂₀N₂O₅
(2Z)-2-[(3,5-dimethylphenyl)imino]-5-(hydroxymethyl)-8-methyl-2H-pyrano[2,3-c]pyridine-3-carbothioamide	(2Z)-2-[(3,5-dimethylphenyl)imino]-5-(hydroxymethyl)-8-methyl-2H-pyrano[2,3-c]pyridine-3-carbothioamide	分子量：353.4 密度：N/A 沸点：N/A 熔点：N/A	931361-18-1	C₁₉H₁₉N₃O₂S
(2Z)-2-[(3-fluoro-4-methylphenyl)imino]-5-(hydroxymethyl)-8-methyl-2H-pyrano[2,3-c]pyridine-3-carbothioamide	(2Z)-2-[(3-fluoro-4-methylphenyl)imino]-5-(hydroxymethyl)-8-methyl-2H-pyrano[2,3-c]pyridine-3-carbothioamide	分子量：357.4 密度：N/A 沸点：N/A 熔点：N/A	931315-63-8	C₁₈H₁₆FN₃O₂S
(2Z)-2-[(3-chlorophenyl)imino]-5-(hydroxymethyl)-8-methyl-2H-pyrano[2,3-c]pyridine-3-carbothioamide	(2Z)-2-[(3-chlorophenyl)imino]-5-(hydroxymethyl)-8-methyl-2H-pyrano[2,3-c]pyridine-3-carbothioamide	分子量：359.8 密度：N/A 沸点：N/A 熔点：N/A	931361-21-6	C₁₇H₁₄ClN₃O₂S
(E)-N-(4-chlorobenzylidene)-8-methyl-2-phenyl-2,4-dihydrochromeno[2,3-c]pyrazol-3-amine	(E)-N-(4-chlorobenzylidene)-8-methyl-2-phenyl-2,4-dihydrochromeno[2,3-c]pyrazol-3-amine	分子量：399.9 密度：N/A 沸点：N/A 熔点：N/A	931966-80-2	C₂₄H₁₈ClN₃O
(E)-N-(3-fluorobenzylidene)-8-methyl-2-phenyl-2,4-dihydrochromeno[2,3-c]pyrazol-3-amine	(E)-N-(3-fluorobenzylidene)-8-methyl-2-phenyl-2,4-dihydrochromeno[2,3-c]pyrazol-3-amine	分子量：383.4 密度：N/A 沸点：N/A 熔点：N/A	931745-73-2	C₂₄H₁₈FN₃O
(E)-8-methyl-N-(4-methylbenzylidene)-2-phenyl-2,4-dihydrochromeno[2,3-c]pyrazol-3-amine	(E)-8-methyl-N-(4-methylbenzylidene)-2-phenyl-2,4-dihydrochromeno[2,3-c]pyrazol-3-amine	分子量：379.5 密度：N/A 沸点：N/A 熔点：N/A	931361-42-1	C₂₅H₂₁N₃O
1-[2-(2-Aminophenoxy)ethyl]-4,6-dimethyl-2(1H)-pyrimidinone	1-[2-(2-Aminophenoxy)ethyl]-4,6-dimethyl-2(1H)-pyrimidinone	分子量：259.30 密度：N/A 沸点：N/A 熔点：N/A	1099658-30-6	C₁₄H₁₇N₃O₂
(E)-8-methyl-2-phenyl-N-(4-(trifluoromethyl)benzylidene)-2,4-dihydrochromeno[2,3-c]pyrazol-3-amine	(E)-8-methyl-2-phenyl-N-(4-(trifluoromethyl)benzylidene)-2,4-dihydrochromeno[2,3-c]pyrazol-3-amine	分子量：433.4 密度：N/A 沸点：N/A 熔点：N/A	931315-87-6	C₂₅H₁₈F₃N₃O
(E)-N-(4-fluorobenzylidene)-8-methyl-2-phenyl-2,4-dihydrochromeno[2,3-c]pyrazol-3-amine	(E)-N-(4-fluorobenzylidene)-8-methyl-2-phenyl-2,4-dihydrochromeno[2,3-c]pyrazol-3-amine	分子量：383.4 密度：N/A 沸点：N/A 熔点：N/A	931361-51-2	C₂₄H₁₈FN₃O
(E)-N-(2-methoxybenzylidene)-8-methyl-2-phenyl-2,4-dihydrochromeno[2,3-c]pyrazol-3-amine	(E)-N-(2-methoxybenzylidene)-8-methyl-2-phenyl-2,4-dihydrochromeno[2,3-c]pyrazol-3-amine	分子量：395.5 密度：N/A 沸点：N/A 熔点：N/A	931315-96-7	C₂₅H₂₁N₃O₂
(E)-N-benzylidene-8-methyl-2-phenyl-2,4-dihydrochromeno[2,3-c]pyrazol-3-amine	(E)-N-benzylidene-8-methyl-2-phenyl-2,4-dihydrochromeno[2,3-c]pyrazol-3-amine	分子量：365.4 密度：N/A 沸点：N/A 熔点：N/A	931316-05-1	C₂₄H₁₉N₃O
(E)-N-(2-chlorobenzylidene)-8-methyl-2-phenyl-2,4-dihydrochromeno[2,3-c]pyrazol-3-amine	(E)-N-(2-chlorobenzylidene)-8-methyl-2-phenyl-2,4-dihydrochromeno[2,3-c]pyrazol-3-amine	分子量：399.9 密度：N/A 沸点：N/A 熔点：N/A	931745-88-9	C₂₄H₁₈ClN₃O
5-(4-Bromophenyl)-2,3-dihydro-1,3-oxazole-2-thione	5-(4-Bromophenyl)-2,3-dihydro-1,3-oxazole-2-thione	分子量：256.12 密度：N/A 沸点：N/A 熔点：N/A	931966-96-0	C₉H₆BrNOS
ethyl 4-(2-(3-oxo-5,6,7,8-tetrahydrocinnolin-2(3H)-yl)acetamido)benzoate	ethyl 4-(2-(3-oxo-5,6,7,8-tetrahydrocinnolin-2(3H)-yl)acetamido)benzoate	分子量：355.4 密度：N/A 沸点：N/A 熔点：N/A	931966-98-2	C₁₉H₂₁N₃O₄
N-(2-chlorophenyl)-2-(1-oxo-[1,2,4]triazolo[4,3-a]quinoxalin-2(1H)-yl)acetamide	N-(2-chlorophenyl)-2-(1-oxo-[1,2,4]triazolo[4,3-a]quinoxalin-2(1H)-yl)acetamide	分子量：353.8 密度：N/A 沸点：N/A 熔点：N/A	1031559-14-4	C₁₇H₁₂ClN₅O₂
N-(4-ethylphenyl)-2-(1-oxo-[1,2,4]triazolo[4,3-a]quinoxalin-2(1H)-yl)acetamide	N-(4-ethylphenyl)-2-(1-oxo-[1,2,4]triazolo[4,3-a]quinoxalin-2(1H)-yl)acetamide	分子量：347.4 密度：N/A 沸点：N/A 熔点：N/A	1031559-17-7	C₁₉H₁₇N₅O₂
N-(3-chloro-4-methylphenyl)-2-(1-oxo-[1,2,4]triazolo[4,3-a]quinoxalin-2(1H)-yl)acetamide	N-(3-chloro-4-methylphenyl)-2-(1-oxo-[1,2,4]triazolo[4,3-a]quinoxalin-2(1H)-yl)acetamide	分子量：367.8 密度：N/A 沸点：N/A 熔点：N/A	1031619-66-5	C₁₈H₁₄ClN₅O₂
N-(2,5-dimethoxyphenyl)-2-(1-oxo-[1,2,4]triazolo[4,3-a]quinoxalin-2(1H)-yl)acetamide	N-(2,5-dimethoxyphenyl)-2-(1-oxo-[1,2,4]triazolo[4,3-a]quinoxalin-2(1H)-yl)acetamide	分子量：379.4 密度：N/A 沸点：N/A 熔点：N/A	1031599-39-9	C₁₉H₁₇N₅O₄
1-(6-Sulfanylpyridazin-3-YL)piperidine-4-carboxylic acid	1-(6-Sulfanylpyridazin-3-YL)piperidine-4-carboxylic acid	分子量：239.30 密度：N/A 沸点：N/A 熔点：N/A	931745-97-0	C₁₀H₁₃N₃O₂S
N-(4-ethylphenyl)-1-(7-methyl-9-phenylpyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-yl)piperidine-4-carboxamide	N-(4-ethylphenyl)-1-(7-methyl-9-phenylpyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-yl)piperidine-4-carboxamide	分子量：507.7 密度：N/A 沸点：N/A 熔点：N/A	1112278-55-3	C₃₀H₂₉N₅OS
N-(4-ethylphenyl)-1-(pyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-yl)piperidine-4-carboxamide	N-(4-ethylphenyl)-1-(pyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-yl)piperidine-4-carboxamide	分子量：417.5 密度：N/A 沸点：N/A 熔点：N/A	1112384-21-0	C₂₃H₂₃N₅OS
N-(3-methoxyphenyl)-1-(pyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-yl)piperidine-4-carboxamide	N-(3-methoxyphenyl)-1-(pyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-yl)piperidine-4-carboxamide	分子量：419.5 密度：N/A 沸点：N/A 熔点：N/A	1110968-71-2	C₂₂H₂₁N₅O₂S
N-(2-methoxybenzyl)-1-(7-methyl-9-phenylpyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-yl)piperidine-4-carboxamide	N-(2-methoxybenzyl)-1-(7-methyl-9-phenylpyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-yl)piperidine-4-carboxamide	分子量：523.6 密度：N/A 沸点：N/A 熔点：N/A	1112444-99-1	C₃₀H₂₉N₅O₂S
1-(7-methyl-9-phenylpyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-yl)-N-(4-methylbenzyl)piperidine-4-carboxamide	1-(7-methyl-9-phenylpyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-yl)-N-(4-methylbenzyl)piperidine-4-carboxamide	分子量：507.7 密度：N/A 沸点：N/A 熔点：N/A	1112278-57-5	C₃₀H₂₉N₅OS
N-(4-isopropylphenyl)-2-(4-(3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl)-2-oxoquinolin-1(2H)-yl)acetamide	N-(4-isopropylphenyl)-2-(4-(3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl)-2-oxoquinolin-1(2H)-yl)acetamide	分子量：494.5 密度：N/A 沸点：N/A 熔点：N/A	1031619-76-7	C₂₉H₂₆N₄O₄
N-(3-methoxybenzyl)-1-(7-methyl-9-phenylpyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-yl)piperidine-4-carboxamide	N-(3-methoxybenzyl)-1-(7-methyl-9-phenylpyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-yl)piperidine-4-carboxamide	分子量：523.6 密度：N/A 沸点：N/A 熔点：N/A	1113110-58-9	C₃₀H₂₉N₅O₂S
N-(3,4-dimethylphenyl)-1-(7-methyl-9-phenylpyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-yl)piperidine-4-carboxamide	N-(3,4-dimethylphenyl)-1-(7-methyl-9-phenylpyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-yl)piperidine-4-carboxamide	分子量：507.7 密度：N/A 沸点：N/A 熔点：N/A	1113110-63-6	C₃₀H₂₉N₅OS
N-(3,4-dimethoxyphenyl)-1-(7-methyl-9-phenylpyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-yl)piperidine-4-carboxamide	N-(3,4-dimethoxyphenyl)-1-(7-methyl-9-phenylpyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-yl)piperidine-4-carboxamide	分子量：539.6 密度：N/A 沸点：N/A 熔点：N/A	1112384-24-3	C₃₀H₂₉N₅O₃S
3-({[(4-fluorophenyl)carbamoyl]methyl}sulfanyl)-N-(4-methylphenyl)-[1,2,4]triazolo[4,3-a]pyridine-6-carboxamide	3-({[(4-fluorophenyl)carbamoyl]methyl}sulfanyl)-N-(4-methylphenyl)-[1,2,4]triazolo[4,3-a]pyridine-6-carboxamide	分子量：435.5 密度：N/A 沸点：N/A 熔点：N/A	1110996-21-8	C₂₂H₁₈FN₅O₂S
3-({2-[(4-chlorobenzyl)amino]-2-oxoethyl}thio)-N-(4-methylphenyl)[1,2,4]triazolo[4,3-a]pyridine-6-carboxamide	3-({2-[(4-chlorobenzyl)amino]-2-oxoethyl}thio)-N-(4-methylphenyl)[1,2,4]triazolo[4,3-a]pyridine-6-carboxamide	分子量：466.0 密度：N/A 沸点：N/A 熔点：N/A	1111170-92-3	C₂₃H₂₀ClN₅O₂S
3-({[(4-methoxyphenyl)carbamoyl]methyl}sulfanyl)-N-(4-methylphenyl)-[1,2,4]triazolo[4,3-a]pyridine-6-carboxamide	3-({[(4-methoxyphenyl)carbamoyl]methyl}sulfanyl)-N-(4-methylphenyl)-[1,2,4]triazolo[4,3-a]pyridine-6-carboxamide	分子量：447.5 密度：N/A 沸点：N/A 熔点：N/A	1111000-70-4	C₂₃H₂₁N₅O₃S
3-({[(4-ethoxyphenyl)carbamoyl]methyl}sulfanyl)-N-(4-methylphenyl)-[1,2,4]triazolo[4,3-a]pyridine-6-carboxamide	3-({[(4-ethoxyphenyl)carbamoyl]methyl}sulfanyl)-N-(4-methylphenyl)-[1,2,4]triazolo[4,3-a]pyridine-6-carboxamide	分子量：461.5 密度：N/A 沸点：N/A 熔点：N/A	1110996-24-1	C₂₄H₂₃N₅O₃S
3-({[(2,5-dimethoxyphenyl)carbamoyl]methyl}sulfanyl)-N-(4-methylphenyl)-[1,2,4]triazolo[4,3-a]pyridine-6-carboxamide	3-({[(2,5-dimethoxyphenyl)carbamoyl]methyl}sulfanyl)-N-(4-methylphenyl)-[1,2,4]triazolo[4,3-a]pyridine-6-carboxamide	分子量：477.5 密度：N/A 沸点：N/A 熔点：N/A	1111000-76-0	C₂₄H₂₃N₅O₄S
methyl 4-({[3-oxo-6-(phenylsulfonyl)[1,2,4]triazolo[4,3-b]pyridazin-2(3H)-yl]acetyl}amino)benzoate	methyl 4-({[3-oxo-6-(phenylsulfonyl)[1,2,4]triazolo[4,3-b]pyridazin-2(3H)-yl]acetyl}amino)benzoate	分子量：467.5 密度：N/A 沸点：N/A 熔点：N/A	1189911-06-5	C₂₁H₁₇N₅O₆S
ethyl 5-amino-1-(5-{[4-(trifluoromethyl)phenyl]carbamoyl}pyridin-2-yl)-1H-pyrazole-4-carboxylate	ethyl 5-amino-1-(5-{[4-(trifluoromethyl)phenyl]carbamoyl}pyridin-2-yl)-1H-pyrazole-4-carboxylate	分子量：419.4 密度：N/A 沸点：N/A 熔点：N/A	1173759-36-8	C₁₉H₁₆F₃N₅O₃
Propanoic acid, 3-[(1,1-dioxido-4-thiomorpholinyl)sulfonyl]-	Propanoic acid, 3-[(1,1-dioxido-4-thiomorpholinyl)sulfonyl]-	分子量：271.3 密度：N/A 沸点：N/A 熔点：N/A	1154384-92-5	C₇H₁₃NO₆S₂
6-Fluoro-4-hydrazinylquinazoline	6-Fluoro-4-hydrazinylquinazoline	分子量：178.17 密度：N/A 沸点：N/A 熔点：N/A	1019166-35-8	C₈H₇FN₄
3-Fluorobenzyl 1-(6-((4-isopropylphenyl)thio)pyridazin-3-yl)piperidine-4-carboxylate	3-Fluorobenzyl 1-(6-((4-isopropylphenyl)thio)pyridazin-3-yl)piperidine-4-carboxylate	分子量：465.6 密度：N/A 沸点：N/A 熔点：N/A	1031970-48-5	C₂₆H₂₈FN₃O₂S