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
2,3,4-trimethyl-9,10-dihydrocyclopenta[c]furo[2,3-f]chromene-7(8H)-thione	2,3,4-trimethyl-9,10-dihydrocyclopenta[c]furo[2,3-f]chromene-7(8H)-thione	分子量：284.4 密度：N/A 沸点：N/A 熔点：N/A	951977-93-8	C₁₇H₁₆O₂S
1H-indol-2-yl{4-[(4-methoxyphenyl)carbonyl]piperazin-1-yl}methanone	1H-indol-2-yl{4-[(4-methoxyphenyl)carbonyl]piperazin-1-yl}methanone	分子量：363.4 密度：N/A 沸点：N/A 熔点：N/A	951942-22-6	C₂₁H₂₁N₃O₃
(Z)-2-(furan-2-ylmethylene)-8-(3,4,5-trimethoxybenzyl)-8,9-dihydro-2H-benzofuro[7,6-e][1,3]oxazin-3(7H)-one	(Z)-2-(furan-2-ylmethylene)-8-(3,4,5-trimethoxybenzyl)-8,9-dihydro-2H-benzofuro[7,6-e][1,3]oxazin-3(7H)-one	分子量：449.5 密度：N/A 沸点：N/A 熔点：N/A	951978-05-5	C₂₅H₂₃NO₇
(5Z)-3-(furan-2-ylmethyl)-5-(quinoxalin-5-ylmethylidene)-2-thioxo-1,3-thiazolidin-4-one	(5Z)-3-(furan-2-ylmethyl)-5-(quinoxalin-5-ylmethylidene)-2-thioxo-1,3-thiazolidin-4-one	分子量：353.4 密度：N/A 沸点：N/A 熔点：N/A	951942-57-7	C₁₇H₁₁N₃O₂S₂
N-[4-(3-ethyl-2,6-dioxopiperidin-3-yl)phenyl]-7-methoxy-1-benzofuran-2-carboxamide	N-[4-(3-ethyl-2,6-dioxopiperidin-3-yl)phenyl]-7-methoxy-1-benzofuran-2-carboxamide	分子量：406.4 密度：N/A 沸点：N/A 熔点：N/A	951942-78-2	C₂₃H₂₂N₂O₅
4-methyl-2-(2-propylpyridin-4-yl)-N-(tetrahydrofuran-2-ylmethyl)-1,3-thiazole-5-carboxamide	4-methyl-2-(2-propylpyridin-4-yl)-N-(tetrahydrofuran-2-ylmethyl)-1,3-thiazole-5-carboxamide	分子量：345.5 密度：N/A 沸点：N/A 熔点：N/A	951958-28-4	C₁₈H₂₃N₃O₂S
(5Z)-5-({(2-fluorobenzyl)[2-(morpholin-4-yl)ethyl]amino}methylidene)-3-phenyl-2-thioxo-1,3-thiazolidin-4-one	(5Z)-5-({(2-fluorobenzyl)[2-(morpholin-4-yl)ethyl]amino}methylidene)-3-phenyl-2-thioxo-1,3-thiazolidin-4-one	分子量：457.6 密度：N/A 沸点：N/A 熔点：N/A	951958-44-4	C₂₃H₂₄FN₃O₂S₂
N-{2-[(2-methylpropanoyl)amino]ethyl}-1H-indole-2-carboxamide	N-{2-[(2-methylpropanoyl)amino]ethyl}-1H-indole-2-carboxamide	分子量：273.33 密度：N/A 沸点：N/A 熔点：N/A	951958-56-8	C₁₅H₁₉N₃O₂
{4-[3-(3-isobutyl-1H-pyrazol-5-yl)[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-6-yl]phenyl}dimethylamine	{4-[3-(3-isobutyl-1H-pyrazol-5-yl)[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-6-yl]phenyl}dimethylamine	分子量：367.5 密度：N/A 沸点：N/A 熔点：N/A	1050290-35-1	C₁₈H₂₁N₇S
3-chloro-N-{4-[4-(propan-2-yl)phenyl]-1,2,5-oxadiazol-3-yl}-1-benzothiophene-2-carboxamide	3-chloro-N-{4-[4-(propan-2-yl)phenyl]-1,2,5-oxadiazol-3-yl}-1-benzothiophene-2-carboxamide	分子量：397.9 密度：N/A 沸点：N/A 熔点：N/A	951958-66-0	C₂₀H₁₆ClN₃O₂S
N-[2-(2,3-dihydro-1,4-benzodioxin-6-ylamino)-2-oxoethyl]-4-methoxy-1H-indole-2-carboxamide	N-[2-(2,3-dihydro-1,4-benzodioxin-6-ylamino)-2-oxoethyl]-4-methoxy-1H-indole-2-carboxamide	分子量：381.4 密度：N/A 沸点：N/A 熔点：N/A	951943-19-4	C₂₀H₁₉N₃O₅
7-methoxy-N-(2-oxo-2H-chromen-6-yl)-1-benzofuran-2-carboxamide	7-methoxy-N-(2-oxo-2H-chromen-6-yl)-1-benzofuran-2-carboxamide	分子量：335.3 密度：N/A 沸点：N/A 熔点：N/A	951943-27-4	C₁₉H₁₃NO₅
methyl N-(1,1-dioxidotetrahydrothiophen-3-yl)-N-[(4-methylphenyl)acetyl]glycinate	methyl N-(1,1-dioxidotetrahydrothiophen-3-yl)-N-[(4-methylphenyl)acetyl]glycinate	分子量：339.4 密度：N/A 沸点：N/A 熔点：N/A	951958-78-4	C₁₆H₂₁NO₅S
N-{4,5-dimethyl-3-[(4-methylphenyl)sulfonyl]-1-(2-methylpropyl)-1H-pyrrol-2-yl}furan-2-carboxamide	N-{4,5-dimethyl-3-[(4-methylphenyl)sulfonyl]-1-(2-methylpropyl)-1H-pyrrol-2-yl}furan-2-carboxamide	分子量：414.5 密度：N/A 沸点：N/A 熔点：N/A	951943-30-9	C₂₂H₂₆N₂O₄S
2-[3-[(2-chlorobenzyl)sulfanyl]-5-(3-pyridinyl)-4H-1,2,4-triazol-4-yl]ethanol	2-[3-[(2-chlorobenzyl)sulfanyl]-5-(3-pyridinyl)-4H-1,2,4-triazol-4-yl]ethanol	分子量：346.8 密度：N/A 沸点：N/A 熔点：N/A	947866-44-6	C₁₆H₁₅ClN₄OS
(3,5-dimethoxyphenyl)[4-(1H-indol-2-ylcarbonyl)piperazin-1-yl]methanone	(3,5-dimethoxyphenyl)[4-(1H-indol-2-ylcarbonyl)piperazin-1-yl]methanone	分子量：393.4 密度：N/A 沸点：N/A 熔点：N/A	951943-45-6	C₂₂H₂₃N₃O₄
3-(3,4-dimethoxyphenyl)-9-(3-methoxypropyl)-9,10-dihydrochromeno[8,7-e][1,3]oxazin-4(8H)-one	3-(3,4-dimethoxyphenyl)-9-(3-methoxypropyl)-9,10-dihydrochromeno[8,7-e][1,3]oxazin-4(8H)-one	分子量：411.4 密度：N/A 沸点：N/A 熔点：N/A	951959-02-7	C₂₃H₂₅NO₆
N~2~-[4-(3-chloro-4-methoxyanilino)-4-oxobutyl]-5-methoxy-1-methyl-1H-indole-2-carboxamide	N~2~-[4-(3-chloro-4-methoxyanilino)-4-oxobutyl]-5-methoxy-1-methyl-1H-indole-2-carboxamide	分子量：429.9 密度：N/A 沸点：N/A 熔点：N/A	951959-14-1	C₂₂H₂₄ClN₃O₄
6-benzyl-3-(3-isobutyl-1H-pyrazol-5-yl)[1,2,4]triazolo[3,4-b][1,3,4]thiadiazole	6-benzyl-3-(3-isobutyl-1H-pyrazol-5-yl)[1,2,4]triazolo[3,4-b][1,3,4]thiadiazole	分子量：338.4 密度：N/A 沸点：N/A 熔点：N/A	1050290-39-5	C₁₇H₁₈N₆S
4-(3-(furan-2-yl)-5-(quinoxalin-6-yl)-4,5-dihydro-1H-pyrazol-1-yl)-4-oxobutanoic acid	4-(3-(furan-2-yl)-5-(quinoxalin-6-yl)-4,5-dihydro-1H-pyrazol-1-yl)-4-oxobutanoic acid	分子量：364.4 密度：N/A 沸点：N/A 熔点：N/A	946310-01-6	C₁₉H₁₆N₄O₄
N~4~-[2-(5-fluoro-1H-indol-3-yl)ethyl]isonicotinamide	N~4~-[2-(5-fluoro-1H-indol-3-yl)ethyl]isonicotinamide	分子量：283.30 密度：N/A 沸点：N/A 熔点：N/A	951943-93-4	C₁₆H₁₄FN₃O
N-[(5Z)-4-oxo-5-(quinolin-2-ylmethylidene)-2-thioxo-1,3-thiazolidin-3-yl]pyridine-3-carboxamide	N-[(5Z)-4-oxo-5-(quinolin-2-ylmethylidene)-2-thioxo-1,3-thiazolidin-3-yl]pyridine-3-carboxamide	分子量：392.5 密度：N/A 沸点：N/A 熔点：N/A	951944-05-1	C₁₉H₁₂N₄O₂S₂
3-(4-chlorophenyl)-9-(1,1-dioxidotetrahydrothiophen-3-yl)-4-methyl-9,10-dihydro-2H,8H-chromeno[8,7-e][1,3]oxazin-2-one	3-(4-chlorophenyl)-9-(1,1-dioxidotetrahydrothiophen-3-yl)-4-methyl-9,10-dihydro-2H,8H-chromeno[8,7-e][1,3]oxazin-2-one	分子量：445.9 密度：N/A 沸点：N/A 熔点：N/A	951959-68-5	C₂₂H₂₀ClNO₅S
1-[4-(1H-indol-2-ylcarbonyl)piperazin-1-yl]-2-(2-methoxyphenyl)ethanone	1-[4-(1H-indol-2-ylcarbonyl)piperazin-1-yl]-2-(2-methoxyphenyl)ethanone	分子量：377.4 密度：N/A 沸点：N/A 熔点：N/A	951944-11-9	C₂₂H₂₃N₃O₃
(Z)-8-(pyridin-2-ylmethyl)-2-(3,4,5-trimethoxybenzylidene)-8,9-dihydro-2H-benzofuro[7,6-e][1,3]oxazin-3(7H)-one	(Z)-8-(pyridin-2-ylmethyl)-2-(3,4,5-trimethoxybenzylidene)-8,9-dihydro-2H-benzofuro[7,6-e][1,3]oxazin-3(7H)-one	分子量：460.5 密度：N/A 沸点：N/A 熔点：N/A	951959-92-5	C₂₆H₂₄N₂O₆
N-[2-(2,3-dihydro-1,4-benzodioxin-6-ylamino)-2-oxoethyl]-5,6,7-trimethoxy-1H-indole-2-carboxamide	N-[2-(2,3-dihydro-1,4-benzodioxin-6-ylamino)-2-oxoethyl]-5,6,7-trimethoxy-1H-indole-2-carboxamide	分子量：441.4 密度：N/A 沸点：N/A 熔点：N/A	951944-32-4	C₂₂H₂₃N₃O₇
3-(4-chlorophenyl)-9-isobutyl-9,10-dihydrochromeno[8,7-e][1,3]oxazin-4(8H)-one	3-(4-chlorophenyl)-9-isobutyl-9,10-dihydrochromeno[8,7-e][1,3]oxazin-4(8H)-one	分子量：369.8 密度：N/A 沸点：N/A 熔点：N/A	951944-41-5	C₂₁H₂₀ClNO₃
N-[3-(acetylamino)phenyl]-2-(1-oxo-1H-isochromen-3-yl)benzamide	N-[3-(acetylamino)phenyl]-2-(1-oxo-1H-isochromen-3-yl)benzamide	分子量：398.4 密度：N/A 沸点：N/A 熔点：N/A	951960-16-0	C₂₄H₁₈N₂O₄
3-(4-methoxyphenyl)-9-(5-methylpyridin-2-yl)-9,10-dihydrochromeno[8,7-e][1,3]oxazin-4(8H)-one	3-(4-methoxyphenyl)-9-(5-methylpyridin-2-yl)-9,10-dihydrochromeno[8,7-e][1,3]oxazin-4(8H)-one	分子量：400.4 密度：N/A 沸点：N/A 熔点：N/A	951960-24-0	C₂₄H₂₀N₂O₄
2-{[3-(benzyloxy)benzoyl]amino}-N-(3-pyridinylmethyl)benzamide	2-{[3-(benzyloxy)benzoyl]amino}-N-(3-pyridinylmethyl)benzamide	分子量：437.5 密度：N/A 沸点：N/A 熔点：N/A	928923-73-3	C₂₇H₂₃N₃O₃
N-(4-carbamoylphenyl)-4-hydroxy-8-(trifluoromethyl)quinoline-3-carboxamide	N-(4-carbamoylphenyl)-4-hydroxy-8-(trifluoromethyl)quinoline-3-carboxamide	分子量：375.3 密度：N/A 沸点：N/A 熔点：N/A	946260-34-0	C₁₈H₁₂F₃N₃O₃
2-(2-fluorophenyl)-4-methyl-N-(3,4,5-trimethoxyphenyl)-1,3-thiazole-5-carboxamide	2-(2-fluorophenyl)-4-methyl-N-(3,4,5-trimethoxyphenyl)-1,3-thiazole-5-carboxamide	分子量：402.4 密度：N/A 沸点：N/A 熔点：N/A	951944-98-2	C₂₀H₁₉FN₂O₄S
3-(4-chlorophenyl)-9-(2-methoxyethyl)-9,10-dihydrochromeno[8,7-e][1,3]oxazin-4(8H)-one	3-(4-chlorophenyl)-9-(2-methoxyethyl)-9,10-dihydrochromeno[8,7-e][1,3]oxazin-4(8H)-one	分子量：371.8 密度：N/A 沸点：N/A 熔点：N/A	951960-69-3	C₂₀H₁₈ClNO₄
N~2~-[6-(1,3-benzothiazol-2-ylamino)-6-oxohexyl]-1H-indole-2-carboxamide	N~2~-[6-(1,3-benzothiazol-2-ylamino)-6-oxohexyl]-1H-indole-2-carboxamide	分子量：406.5 密度：N/A 沸点：N/A 熔点：N/A	951960-72-8	C₂₂H₂₂N₄O₂S
trans-4-({[(4-fluorophenyl)sulfonyl]amino}methyl)-N-(2-{[2-(morpholin-4-yl)ethyl]amino}-2-oxoethyl)cyclohexanecarboxamide	trans-4-({[(4-fluorophenyl)sulfonyl]amino}methyl)-N-(2-{[2-(morpholin-4-yl)ethyl]amino}-2-oxoethyl)cyclohexanecarboxamide	分子量：484.6 密度：N/A 沸点：N/A 熔点：N/A	1212329-26-4	C₂₂H₃₃FN₄O₅S
N-(2-{[(4-methoxyphenyl)sulfonyl]amino}ethyl)-1H-indole-3-carboxamide	N-(2-{[(4-methoxyphenyl)sulfonyl]amino}ethyl)-1H-indole-3-carboxamide	分子量：373.4 密度：N/A 沸点：N/A 熔点：N/A	951960-84-2	C₁₈H₁₉N₃O₄S
9-cyclopropyl-3-(3,4-dimethoxyphenyl)-4-methyl-9,10-dihydrochromeno[8,7-e][1,3]oxazin-2(8H)-one	9-cyclopropyl-3-(3,4-dimethoxyphenyl)-4-methyl-9,10-dihydrochromeno[8,7-e][1,3]oxazin-2(8H)-one	分子量：393.4 密度：N/A 沸点：N/A 熔点：N/A	951945-26-9	C₂₃H₂₃NO₅
3-(3,4-dimethoxyphenyl)-9-(2-methoxyethyl)-9,10-dihydrochromeno[8,7-e][1,3]oxazin-2(8H)-one	3-(3,4-dimethoxyphenyl)-9-(2-methoxyethyl)-9,10-dihydrochromeno[8,7-e][1,3]oxazin-2(8H)-one	分子量：397.4 密度：N/A 沸点：N/A 熔点：N/A	946384-23-2	C₂₂H₂₃NO₆
9-(1,1-dioxidotetrahydrothiophen-3-yl)-3-phenyl-9,10-dihydrochromeno[8,7-e][1,3]oxazin-2(8H)-one	9-(1,1-dioxidotetrahydrothiophen-3-yl)-3-phenyl-9,10-dihydrochromeno[8,7-e][1,3]oxazin-2(8H)-one	分子量：397.4 密度：N/A 沸点：N/A 熔点：N/A	951945-38-3	C₂₁H₁₉NO₅S
Methyl 3-{2-[(tert-butoxycarbonyl)amino]ethyl}-4-oxo-3,4-dihydroquinazoline-7-carboxylate	Methyl 3-{2-[(tert-butoxycarbonyl)amino]ethyl}-4-oxo-3,4-dihydroquinazoline-7-carboxylate	分子量：347.4 密度：N/A 沸点：N/A 熔点：N/A	951961-17-4	C₁₇H₂₁N₃O₅
3-hydroxy-N-[(5Z)-4-oxo-5-(quinoxalin-5-ylmethylidene)-2-thioxo-1,3-thiazolidin-3-yl]benzamide	3-hydroxy-N-[(5Z)-4-oxo-5-(quinoxalin-5-ylmethylidene)-2-thioxo-1,3-thiazolidin-3-yl]benzamide	分子量：408.5 密度：N/A 沸点：N/A 熔点：N/A	951961-21-0	C₁₉H₁₂N₄O₃S₂
4-(3-(4-chlorophenyl)-5-(quinoxalin-6-yl)-4,5-dihydro-1H-pyrazol-1-yl)-4-oxobutanoic acid	4-(3-(4-chlorophenyl)-5-(quinoxalin-6-yl)-4,5-dihydro-1H-pyrazol-1-yl)-4-oxobutanoic acid	分子量：408.8 密度：N/A 沸点：N/A 熔点：N/A	946341-21-5	C₂₁H₁₇ClN₄O₃
N-{3-[(4-fluorophenyl)sulfonyl]-1-(furan-2-ylmethyl)-4,5-dimethyl-1H-pyrrol-2-yl}pentanamide	N-{3-[(4-fluorophenyl)sulfonyl]-1-(furan-2-ylmethyl)-4,5-dimethyl-1H-pyrrol-2-yl}pentanamide	分子量：432.5 密度：N/A 沸点：N/A 熔点：N/A	951945-56-5	C₂₂H₂₅FN₂O₄S
N~5~-(1,3-benzodioxol-5-yl)-2-(4-fluorophenyl)-4-methyl-1,3-thiazole-5-carboxamide	N~5~-(1,3-benzodioxol-5-yl)-2-(4-fluorophenyl)-4-methyl-1,3-thiazole-5-carboxamide	分子量：356.4 密度：N/A 沸点：N/A 熔点：N/A	951961-49-2	C₁₈H₁₃FN₂O₃S
N-(4-carbamoylphenyl)-4-hydroxyquinoline-3-carboxamide	N-(4-carbamoylphenyl)-4-hydroxyquinoline-3-carboxamide	分子量：307.30 密度：N/A 沸点：N/A 熔点：N/A	946260-13-5	C₁₇H₁₃N₃O₃
2,3,4-trimethyl-8,9,10,11-tetrahydro-7H-benzo[c]furo[2,3-f]chromene-7-thione	2,3,4-trimethyl-8,9,10,11-tetrahydro-7H-benzo[c]furo[2,3-f]chromene-7-thione	分子量：298.4 密度：N/A 沸点：N/A 熔点：N/A	951945-79-2	C₁₈H₁₈O₂S
3-{2-[(4-phenylpiperazin-1-yl)carbonyl]phenyl}-1H-isochromen-1-one	3-{2-[(4-phenylpiperazin-1-yl)carbonyl]phenyl}-1H-isochromen-1-one	分子量：410.5 密度：N/A 沸点：N/A 熔点：N/A	951983-07-6	C₂₆H₂₂N₂O₃
3-(3-chloro-1,2-oxazol-5-yl)-N-{2-[(2,5-dimethoxyphenyl)carbonyl]-3-methyl-1-benzofuran-6-yl}propanamide	3-(3-chloro-1,2-oxazol-5-yl)-N-{2-[(2,5-dimethoxyphenyl)carbonyl]-3-methyl-1-benzofuran-6-yl}propanamide	分子量：468.9 密度：N/A 沸点：N/A 熔点：N/A	951946-72-8	C₂₄H₂₁ClN₂O₆
6-(2-Chlorophenyl)-3-isobutyl[1,2,4]triazolo[3,4-b][1,3,4]thiadiazole	6-(2-Chlorophenyl)-3-isobutyl[1,2,4]triazolo[3,4-b][1,3,4]thiadiazole	分子量：292.79 密度：N/A 沸点：N/A 熔点：N/A	947899-87-8	C₁₃H₁₃ClN₄S
N-(2-((2-oxo-2H-chromen-4-yl)amino)ethyl)quinoline-2-carboxamide	N-(2-((2-oxo-2H-chromen-4-yl)amino)ethyl)quinoline-2-carboxamide	分子量：359.4 密度：N/A 沸点：N/A 熔点：N/A	947828-21-9	C₂₁H₁₇N₃O₃