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
5,8-Dimethoxy-2-phenyl-3-quinolinecarbonitrile	5,8-Dimethoxy-2-phenyl-3-quinolinecarbonitrile	分子量：290.3 密度：N/A 沸点：N/A 熔点：N/A	882748-20-1	C₁₈H₁₄N₂O₂
2-(2,4-dichlorophenoxy)-N-[2-(furan-2-yl)-2-(morpholin-4-yl)ethyl]acetamide	2-(2,4-dichlorophenoxy)-N-[2-(furan-2-yl)-2-(morpholin-4-yl)ethyl]acetamide	分子量：399.3 密度：N/A 沸点：N/A 熔点：N/A	952927-97-8	C₁₈H₂₀Cl₂N₂O₄
(2-naphthylmethyl)[(Z)-phenylmethylidene]ammoniumolate	(2-naphthylmethyl)[(Z)-phenylmethylidene]ammoniumolate	分子量：261.3 密度：N/A 沸点：N/A 熔点：N/A	939888-04-7	C₁₈H₁₅NO
N-[3-methyl-2-(phenylcarbonyl)-1-benzofuran-5-yl]furan-2-carboxamide	N-[3-methyl-2-(phenylcarbonyl)-1-benzofuran-5-yl]furan-2-carboxamide	分子量：345.3 密度：N/A 沸点：N/A 熔点：N/A	920483-69-8	C₂₁H₁₅NO₄
8-(3-((2-chlorophenyl)amino)propyl)-1,7-dimethyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione	8-(3-((2-chlorophenyl)amino)propyl)-1,7-dimethyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione	分子量：386.8 密度：N/A 沸点：N/A 熔点：N/A	923129-58-2	C₁₈H₁₉ClN₆O₂
methyl 4-{(Z)-[3-(2-{[3-(dimethylamino)propyl]amino}-2-oxoethyl)-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}benzoate	methyl 4-{(Z)-[3-(2-{[3-(dimethylamino)propyl]amino}-2-oxoethyl)-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene]methyl}benzoate	分子量：421.5 密度：N/A 沸点：N/A 熔点：N/A	929825-87-6	C₁₉H₂₃N₃O₄S₂
3-(3,4-dimethoxyphenyl)-2-methyl-5-{[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanyl]methyl}pyrazolo[1,5-a]pyrimidin-7(4H)-one	3-(3,4-dimethoxyphenyl)-2-methyl-5-{[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanyl]methyl}pyrazolo[1,5-a]pyrimidin-7(4H)-one	分子量：429.5 密度：N/A 沸点：N/A 熔点：N/A	908524-31-2	C₁₉H₁₉N₅O₃S₂
2-phenyl-5-[(pyridin-2-ylsulfanyl)methyl][1,2,4]triazolo[1,5-a]pyrimidin-7(4H)-one	2-phenyl-5-[(pyridin-2-ylsulfanyl)methyl][1,2,4]triazolo[1,5-a]pyrimidin-7(4H)-one	分子量：335.4 密度：N/A 沸点：N/A 熔点：N/A	920475-43-0	C₁₇H₁₃N₅OS
6-(3-Bromo-4-fluorophenyl)-3-isopropyl[1,2,4]triazolo[3,4-b][1,3,4]thiadiazole	6-(3-Bromo-4-fluorophenyl)-3-isopropyl[1,2,4]triazolo[3,4-b][1,3,4]thiadiazole	分子量：341.20 密度：N/A 沸点：N/A 熔点：N/A	929844-26-8	C₁₂H₁₀BrFN₄S
(2Z)-7-[(dibutylamino)methyl]-6-hydroxy-2-(2,3,4-trimethoxybenzylidene)-1-benzofuran-3(2H)-one	(2Z)-7-[(dibutylamino)methyl]-6-hydroxy-2-(2,3,4-trimethoxybenzylidene)-1-benzofuran-3(2H)-one	分子量：469.6 密度：N/A 沸点：N/A 熔点：N/A	929457-03-4	C₂₇H₃₅NO₆
benzyl [2-(1H-benzimidazol-2-yl)ethyl]carbamate	benzyl [2-(1H-benzimidazol-2-yl)ethyl]carbamate	分子量：295.34 密度：N/A 沸点：N/A 熔点：N/A	60603-44-3	C₁₇H₁₇N₃O₂
(2E)-2-[(1-ethyl-5-methoxy-1H-indol-3-yl)methylidene]-3-oxo-2,3-dihydro-1-benzofuran-6-yl 2-fluorobenzoate	(2E)-2-[(1-ethyl-5-methoxy-1H-indol-3-yl)methylidene]-3-oxo-2,3-dihydro-1-benzofuran-6-yl 2-fluorobenzoate	分子量：457.4 密度：N/A 沸点：N/A 熔点：N/A	929418-67-7	C₂₇H₂₀FNO₅
1-(2-((3-(4-bromophenyl)-2-methyl-4-oxo-4H-chromen-7-yl)oxy)ethyl)piperidine-4-carboxamide	1-(2-((3-(4-bromophenyl)-2-methyl-4-oxo-4H-chromen-7-yl)oxy)ethyl)piperidine-4-carboxamide	分子量：485.4 密度：N/A 沸点：N/A 熔点：N/A	920434-43-1	C₂₄H₂₅BrN₂O₄
Tert-butyl (5-(allylcarbamoyl)-4-methylthiazol-2-yl)carbamate	Tert-butyl (5-(allylcarbamoyl)-4-methylthiazol-2-yl)carbamate	分子量：297.38 密度：N/A 沸点：N/A 熔点：N/A	302958-26-5	C₁₃H₁₉N₃O₃S
(Z)-7-((3,5-dimethylpiperidin-1-yl)methyl)-6-hydroxy-2-((5-methylfuran-2-yl)methylene)benzofuran-3(2H)-one	(Z)-7-((3,5-dimethylpiperidin-1-yl)methyl)-6-hydroxy-2-((5-methylfuran-2-yl)methylene)benzofuran-3(2H)-one	分子量：367.4 密度：N/A 沸点：N/A 熔点：N/A	929433-33-0	C₂₂H₂₅NO₄
(Z)-7-((diisobutylamino)methyl)-2-(furan-2-ylmethylene)-6-hydroxybenzofuran-3(2H)-one	(Z)-7-((diisobutylamino)methyl)-2-(furan-2-ylmethylene)-6-hydroxybenzofuran-3(2H)-one	分子量：369.5 密度：N/A 沸点：N/A 熔点：N/A	929456-37-1	C₂₂H₂₇NO₄
1-(4-chlorophenyl)-5-[(2,4,6-trimethylphenoxy)methyl]-1H-tetrazole	1-(4-chlorophenyl)-5-[(2,4,6-trimethylphenoxy)methyl]-1H-tetrazole	分子量：328.8 密度：N/A 沸点：N/A 熔点：N/A	912903-88-9	C₁₇H₁₇ClN₄O
(2Z)-2-(2,4-dichlorobenzylidene)-6-hydroxy-7-(piperidin-1-ylmethyl)-1-benzofuran-3(2H)-one	(2Z)-2-(2,4-dichlorobenzylidene)-6-hydroxy-7-(piperidin-1-ylmethyl)-1-benzofuran-3(2H)-one	分子量：404.3 密度：N/A 沸点：N/A 熔点：N/A	929456-59-7	C₂₁H₁₉Cl₂NO₃
Methyl 2-[({5-chloro-2-[(2-chlorobenzyl)sulfanyl]pyrimidin-4-yl}carbonyl)amino]benzoate	Methyl 2-[({5-chloro-2-[(2-chlorobenzyl)sulfanyl]pyrimidin-4-yl}carbonyl)amino]benzoate	分子量：448.3 密度：N/A 沸点：N/A 熔点：N/A	901660-27-3	C₂₀H₁₅Cl₂N₃O₃S
2-(2-(Cyclohexanecarboxamido)thiazol-4-yl)acetic acid	2-(2-(Cyclohexanecarboxamido)thiazol-4-yl)acetic acid	分子量：268.33 密度：N/A 沸点：N/A 熔点：N/A	926235-87-2	C₁₂H₁₆N₂O₃S
(Z)-2-((3-methylthiophen-2-yl)methylene)-3-oxo-2,3-dihydrobenzofuran-6-yl 4-methylbenzenesulfonate	(Z)-2-((3-methylthiophen-2-yl)methylene)-3-oxo-2,3-dihydrobenzofuran-6-yl 4-methylbenzenesulfonate	分子量：412.5 密度：N/A 沸点：N/A 熔点：N/A	929413-54-7	C₂₁H₁₆O₅S₂
8-(2-hydroxyethyl)-1,7-dimethyl-3-(3-phenylpropyl)-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione	8-(2-hydroxyethyl)-1,7-dimethyl-3-(3-phenylpropyl)-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione	分子量：381.4 密度：N/A 沸点：N/A 熔点：N/A	915933-88-9	C₂₀H₂₃N₅O₃
1-(1H-benzimidazol-2-yl)-3-methyl-4-(2-phenylethyl)-1H-pyrazol-5-ol	1-(1H-benzimidazol-2-yl)-3-methyl-4-(2-phenylethyl)-1H-pyrazol-5-ol	分子量：318.4 密度：N/A 沸点：N/A 熔点：N/A	925563-88-8	C₁₉H₁₈N₄O
N-[2-(5-fluoro-1H-indol-3-yl)ethyl]-3,4-dimethoxybenzamide	N-[2-(5-fluoro-1H-indol-3-yl)ethyl]-3,4-dimethoxybenzamide	分子量：342.4 密度：N/A 沸点：N/A 熔点：N/A	929972-83-8	C₁₉H₁₉FN₂O₃
5-{[(5-amino-1,3,4-thiadiazol-2-yl)sulfanyl]methyl}-2-(ethylsulfanyl)[1,2,4]triazolo[1,5-a]pyrimidin-7(4H)-one	5-{[(5-amino-1,3,4-thiadiazol-2-yl)sulfanyl]methyl}-2-(ethylsulfanyl)[1,2,4]triazolo[1,5-a]pyrimidin-7(4H)-one	分子量：341.4 密度：N/A 沸点：N/A 熔点：N/A	924870-89-3	C₁₀H₁₁N₇OS₃
N-{2-[(3,4-dimethoxybenzoyl)amino]ethyl}-2-quinolinecarboxamide	N-{2-[(3,4-dimethoxybenzoyl)amino]ethyl}-2-quinolinecarboxamide	分子量：379.4 密度：N/A 沸点：N/A 熔点：N/A	929836-38-4	C₂₁H₂₁N₃O₄
4-(Benzyloxy)-7-bromo-1H-indole	4-(Benzyloxy)-7-bromo-1H-indole	分子量：302.16 密度：N/A 沸点：N/A 熔点：N/A	290333-11-8	C₁₅H₁₂BrNO
(2E)-2-[(5-methoxy-1-methyl-1H-indol-3-yl)methylidene]-7-methyl-3-oxo-2,3-dihydro-1-benzofuran-6-yl 2,2-dimethylpropanoate	(2E)-2-[(5-methoxy-1-methyl-1H-indol-3-yl)methylidene]-7-methyl-3-oxo-2,3-dihydro-1-benzofuran-6-yl 2,2-dimethylpropanoate	分子量：419.5 密度：N/A 沸点：N/A 熔点：N/A	929443-98-1	C₂₅H₂₅NO₅
Methyl {[7-hydroxy-5-(4-methoxyphenyl)[1,2,4]triazolo[1,5-a]pyrimidin-2-yl]sulfanyl}acetate	Methyl {[7-hydroxy-5-(4-methoxyphenyl)[1,2,4]triazolo[1,5-a]pyrimidin-2-yl]sulfanyl}acetate	分子量：346.4 密度：N/A 沸点：N/A 熔点：N/A	908498-67-9	C₁₅H₁₄N₄O₄S
3-(2-chloro-6-fluorobenzyl)-1,7-dimethyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione	3-(2-chloro-6-fluorobenzyl)-1,7-dimethyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione	分子量：361.76 密度：N/A 沸点：N/A 熔点：N/A	919031-47-3	C₁₆H₁₃ClFN₅O₂
N-{2-[(4-chlorophenyl)carbonyl]-3-methyl-1-benzofuran-5-yl}cyclopropanecarboxamide	N-{2-[(4-chlorophenyl)carbonyl]-3-methyl-1-benzofuran-5-yl}cyclopropanecarboxamide	分子量：353.8 密度：N/A 沸点：N/A 熔点：N/A	929413-15-0	C₂₀H₁₆ClNO₃
Methyl 4-[({5-chloro-2-[(4-chlorobenzyl)sulfanyl]pyrimidin-4-yl}carbonyl)amino]benzoate	Methyl 4-[({5-chloro-2-[(4-chlorobenzyl)sulfanyl]pyrimidin-4-yl}carbonyl)amino]benzoate	分子量：448.3 密度：N/A 沸点：N/A 熔点：N/A	901660-06-8	C₂₀H₁₅Cl₂N₃O₃S
4-[3-(4-Methoxyphenyl)-3-oxo-1-propenyl]phenyl 2,4,6-trimethylbenzenesulfonate	4-[3-(4-Methoxyphenyl)-3-oxo-1-propenyl]phenyl 2,4,6-trimethylbenzenesulfonate	分子量：436.5 密度：N/A 沸点：N/A 熔点：N/A	331461-33-7	C₂₅H₂₄O₅S
{1-[(3,5-dimethylisoxazol-4-yl)sulfonyl]pyrrolidin-2-yl}-N-(5-ethyl(1,3,4-thia diazol-2-yl))carboxamide	{1-[(3,5-dimethylisoxazol-4-yl)sulfonyl]pyrrolidin-2-yl}-N-(5-ethyl(1,3,4-thia diazol-2-yl))carboxamide	分子量：385.5 密度：N/A 沸点：N/A 熔点：N/A	1025722-30-8	C₁₄H₁₉N₅O₄S₂
2-[[2-[(1,6-Dihydro-6-oxo-2-pyrimidinyl)thio]acetyl]amino]benzamide	2-[[2-[(1,6-Dihydro-6-oxo-2-pyrimidinyl)thio]acetyl]amino]benzamide	分子量：304.33 密度：N/A 沸点：N/A 熔点：N/A	777876-91-2	C₁₃H₁₂N₄O₃S
1-Chloro-4-{[(cinnamoyloxy)imino]methyl}benzene	1-Chloro-4-{[(cinnamoyloxy)imino]methyl}benzene	分子量：285.72 密度：N/A 沸点：N/A 熔点：N/A	331462-10-3	C₁₆H₁₂ClNO₂
1-(4,6-dimethylpyrimidin-2-yl)-4-ethyl-3-methyl-1H-pyrazol-5-yl thiophene-2-carboxylate	1-(4,6-dimethylpyrimidin-2-yl)-4-ethyl-3-methyl-1H-pyrazol-5-yl thiophene-2-carboxylate	分子量：342.4 密度：N/A 沸点：N/A 熔点：N/A	944782-94-9	C₁₇H₁₈N₄O₂S
2-(4-ethyl-2-oxomorpholin-3-yl)-N-[3-(trifluoromethyl)phenyl]acetamide	2-(4-ethyl-2-oxomorpholin-3-yl)-N-[3-(trifluoromethyl)phenyl]acetamide	分子量：330.30 密度：N/A 沸点：N/A 熔点：N/A	1045798-40-0	C₁₅H₁₇F₃N₂O₃
(1-Cyclopropylvinyl)dimethylamine	(1-Cyclopropylvinyl)dimethylamine	分子量：111.18 密度：N/A 沸点：N/A 熔点：N/A	656813-89-7	C₇H₁₃N
8-(2,4-dimethoxyphenyl)-7-(4-fluorophenyl)-1-methyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione	8-(2,4-dimethoxyphenyl)-7-(4-fluorophenyl)-1-methyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione	分子量：435.4 密度：N/A 沸点：N/A 熔点：N/A	923505-04-8	C₂₂H₁₈FN₅O₄
(2Z)-2-(2,3-dimethoxybenzylidene)-3-oxo-2,3-dihydro-1-benzofuran-6-yl 4-methoxybenzenesulfonate	(2Z)-2-(2,3-dimethoxybenzylidene)-3-oxo-2,3-dihydro-1-benzofuran-6-yl 4-methoxybenzenesulfonate	分子量：468.5 密度：N/A 沸点：N/A 熔点：N/A	929373-02-4	C₂₄H₂₀O₈S
N-(3,4-dimethylphenyl)-3-(2-phenylethenesulfonamido)propanamide	N-(3,4-dimethylphenyl)-3-(2-phenylethenesulfonamido)propanamide	分子量：358.5 密度：N/A 沸点：N/A 熔点：N/A	949388-89-0	C₁₉H₂₂N₂O₃S
7-[(Diethylamino)methyl]-2-{[4-(tert-butyl)phenyl]methylene}-6-hydroxybenzo[b] furan-3-one	7-[(Diethylamino)methyl]-2-{[4-(tert-butyl)phenyl]methylene}-6-hydroxybenzo[b] furan-3-one	分子量：379.5 密度：N/A 沸点：N/A 熔点：N/A	929397-54-6	C₂₄H₂₉NO₃
2-[3-(2-Methyl-3-furyl)[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-6-yl]quinoline	2-[3-(2-Methyl-3-furyl)[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-6-yl]quinoline	分子量：333.4 密度：N/A 沸点：N/A 熔点：N/A	929860-07-1	C₁₇H₁₁N₅OS
N-{2-[4-(4-fluorophenyl)piperazin-1-yl]ethyl}-3-methoxybenzamide	N-{2-[4-(4-fluorophenyl)piperazin-1-yl]ethyl}-3-methoxybenzamide	分子量：357.4 密度：N/A 沸点：N/A 熔点：N/A	486393-08-2	C₂₀H₂₄FN₃O₂
1-(3,4-difluorophenyl)-4-(3,5-dimethyl-1H-pyrazol-1-yl)-1H-pyrazolo[3,4-d]pyrimidine	1-(3,4-difluorophenyl)-4-(3,5-dimethyl-1H-pyrazol-1-yl)-1H-pyrazolo[3,4-d]pyrimidine	分子量：326.30 密度：N/A 沸点：N/A 熔点：N/A	956617-41-7	C₁₆H₁₂F₂N₆
Methyl 2-({[(2-methoxybenzyl)amino](oxo)acetyl}amino)-4,5-dimethylthiophene-3-carboxylate	Methyl 2-({[(2-methoxybenzyl)amino](oxo)acetyl}amino)-4,5-dimethylthiophene-3-carboxylate	分子量：376.4 密度：N/A 沸点：N/A 熔点：N/A	919731-41-2	C₁₈H₂₀N₂O₅S
2-[(8-Hydroxy-5-quinolinyl)methyl]propanedioic acid 1,3-diethyl ester	2-[(8-Hydroxy-5-quinolinyl)methyl]propanedioic acid 1,3-diethyl ester	分子量：317.34 密度：N/A 沸点：N/A 熔点：N/A	33273-96-0	C₁₇H₁₉NO₅
(2Z)-2-[(5-bromo-1-benzofuran-2-yl)methylidene]-6-hydroxy-4-methyl-7-[(3-methylpiperidin-1-yl)methyl]-1-benzofuran-3(2H)-one	(2Z)-2-[(5-bromo-1-benzofuran-2-yl)methylidene]-6-hydroxy-4-methyl-7-[(3-methylpiperidin-1-yl)methyl]-1-benzofuran-3(2H)-one	分子量：482.4 密度：N/A 沸点：N/A 熔点：N/A	929969-63-1	C₂₅H₂₄BrNO₄
(2Z)-2-(2-chlorobenzylidene)-3-oxo-2,3-dihydro-1-benzofuran-6-yl 4-fluorobenzenesulfonate	(2Z)-2-(2-chlorobenzylidene)-3-oxo-2,3-dihydro-1-benzofuran-6-yl 4-fluorobenzenesulfonate	分子量：430.8 密度：N/A 沸点：N/A 熔点：N/A	929470-56-4	C₂₁H₁₂ClFO₅S