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-(2,6-Dimethylmorpholino)-3-methylbut-2-en-1-one	1-(2,6-Dimethylmorpholino)-3-methylbut-2-en-1-one	分子量：197.27 密度：N/A 沸点：N/A 熔点：N/A	95594-79-9	C₁₁H₁₉NO₂
[4-[(Z)-2-Cyano-3-(2-methylanilino)-3-oxoprop-1-enyl]-2-methoxyphenyl] thiophene-2-carboxylate	[4-[(Z)-2-Cyano-3-(2-methylanilino)-3-oxoprop-1-enyl]-2-methoxyphenyl] thiophene-2-carboxylate	分子量：418.5 密度：N/A 沸点：N/A 熔点：N/A	303785-92-4	C₂₃H₁₈N₂O₄S
(Z)-3-(3-bromo-4-hydroxy-5-methoxyphenyl)-N-(4-chloro-2-methoxy-5-methylphenyl)-2-cyanoprop-2-enamide	(Z)-3-(3-bromo-4-hydroxy-5-methoxyphenyl)-N-(4-chloro-2-methoxy-5-methylphenyl)-2-cyanoprop-2-enamide	分子量：451.7 密度：N/A 沸点：N/A 熔点：N/A	561292-02-2	C₁₉H₁₆BrClN₂O₄
(Z)-3-[2-(N-Acetyl-4-methoxyanilino)-1,3-thiazol-4-yl]-N-(4-chloro-2-methoxy-5-methylphenyl)-2-cyanoprop-2-enamide	(Z)-3-[2-(N-Acetyl-4-methoxyanilino)-1,3-thiazol-4-yl]-N-(4-chloro-2-methoxy-5-methylphenyl)-2-cyanoprop-2-enamide	分子量：497.0 密度：N/A 沸点：N/A 熔点：N/A	1013245-58-3	C₂₄H₂₁ClN₄O₄S
(Z)-3-(3-bromo-4-hydroxy-5-methoxyphenyl)-N-(2-chlorophenyl)-2-cyanoprop-2-enamide	(Z)-3-(3-bromo-4-hydroxy-5-methoxyphenyl)-N-(2-chlorophenyl)-2-cyanoprop-2-enamide	分子量：407.6 密度：N/A 沸点：N/A 熔点：N/A	2158199-41-6	C₁₇H₁₂BrClN₂O₃
(Z)-3-(3-Bromo-4-hydroxy-5-methoxyphenyl)-N-(3-chloro-2-methylphenyl)-2-cyanoprop-2-enamide	(Z)-3-(3-Bromo-4-hydroxy-5-methoxyphenyl)-N-(3-chloro-2-methylphenyl)-2-cyanoprop-2-enamide	分子量：421.7 密度：N/A 沸点：N/A 熔点：N/A	2158200-42-9	C₁₈H₁₄BrClN₂O₃
(Z)-3-(3-bromo-4-hydroxy-5-methoxyphenyl)-2-cyano-N-(2,5-dichlorophenyl)prop-2-enamide	(Z)-3-(3-bromo-4-hydroxy-5-methoxyphenyl)-2-cyano-N-(2,5-dichlorophenyl)prop-2-enamide	分子量：442.1 密度：N/A 沸点：N/A 熔点：N/A	2158211-88-0	C₁₇H₁₁BrCl₂N₂O₃
(Z)-3-(3-bromo-4-hydroxy-5-methoxyphenyl)-2-cyano-N-(2,4-dimethylphenyl)prop-2-enamide	(Z)-3-(3-bromo-4-hydroxy-5-methoxyphenyl)-2-cyano-N-(2,4-dimethylphenyl)prop-2-enamide	分子量：401.3 密度：N/A 沸点：N/A 熔点：N/A	341940-53-2	C₁₉H₁₇BrN₂O₃
(Z)-3-[5-(4-Chlorophenyl)furan-2-yl]-2-cyano-N-cyclopropylprop-2-enamide	(Z)-3-[5-(4-Chlorophenyl)furan-2-yl]-2-cyano-N-cyclopropylprop-2-enamide	分子量：312.7 密度：N/A 沸点：N/A 熔点：N/A	885292-33-1	C₁₇H₁₃ClN₂O₂
4-{2-Cyano-2-[(2-methoxyphenyl)carbamoyl]eth-1-en-1-yl}-2-methoxyphenyl thiophene-2-carboxylate	4-{2-Cyano-2-[(2-methoxyphenyl)carbamoyl]eth-1-en-1-yl}-2-methoxyphenyl thiophene-2-carboxylate	分子量：434.5 密度：N/A 沸点：N/A 熔点：N/A	895510-98-2	C₂₃H₁₈N₂O₅S
4-{3-[1-benzyl-3-(pyridin-3-yl)-1H-pyrazol-4-yl]-2-cyanoprop-2-enamido}benzoic acid	4-{3-[1-benzyl-3-(pyridin-3-yl)-1H-pyrazol-4-yl]-2-cyanoprop-2-enamido}benzoic acid	分子量：449.5 密度：N/A 沸点：N/A 熔点：N/A	1259227-49-0	C₂₆H₁₉N₅O₃
(Z)-3-(3-bromo-4-hydroxy-5-methoxyphenyl)-2-cyano-N-(3,5-dichlorophenyl)prop-2-enamide	(Z)-3-(3-bromo-4-hydroxy-5-methoxyphenyl)-2-cyano-N-(3,5-dichlorophenyl)prop-2-enamide	分子量：442.1 密度：N/A 沸点：N/A 熔点：N/A	2158199-52-9	C₁₇H₁₁BrCl₂N₂O₃
2-cyano-3-(4-hydroxy-3,5-dimethylphenyl)-N-(3-methoxypropyl)prop-2-enamide	2-cyano-3-(4-hydroxy-3,5-dimethylphenyl)-N-(3-methoxypropyl)prop-2-enamide	分子量：288.34 密度：N/A 沸点：N/A 熔点：N/A	1252565-31-3	C₁₆H₂₀N₂O₃
4-{2-Cyano-2-[(4-methoxyphenyl)carbamoyl]eth-1-en-1-yl}-2-methoxyphenyl thiophene-2-carboxylate	4-{2-Cyano-2-[(4-methoxyphenyl)carbamoyl]eth-1-en-1-yl}-2-methoxyphenyl thiophene-2-carboxylate	分子量：434.5 密度：N/A 沸点：N/A 熔点：N/A	350840-25-4	C₂₃H₁₈N₂O₅S
(Z)-2-cyano-3-(2,3-dimethoxyphenyl)-N-(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)prop-2-enamide	(Z)-2-cyano-3-(2,3-dimethoxyphenyl)-N-(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)prop-2-enamide	分子量：418.4 密度：N/A 沸点：N/A 熔点：N/A	905656-99-7	C₂₃H₂₂N₄O₄
(Z)-2-Cyano-N-(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)-3-(3-methoxy-4-propoxyphenyl)prop-2-enamide	(Z)-2-Cyano-N-(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)-3-(3-methoxy-4-propoxyphenyl)prop-2-enamide	分子量：446.5 密度：N/A 沸点：N/A 熔点：N/A	889388-40-3	C₂₅H₂₆N₄O₄
(Z)-2-Cyano-N-(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)-3-(5-methoxy-2,3-dihydro-1,4-benzodioxin-7-yl)prop-2-enamide	(Z)-2-Cyano-N-(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)-3-(5-methoxy-2,3-dihydro-1,4-benzodioxin-7-yl)prop-2-enamide	分子量：446.5 密度：N/A 沸点：N/A 熔点：N/A	1013239-79-6	C₂₄H₂₂N₄O₅
(2Z,4Z)-2-cyano-N-(2,3-dihydro-1,4-benzodioxin-6-yl)-4-methyl-5-phenylpenta-2,4-dienamide	(2Z,4Z)-2-cyano-N-(2,3-dihydro-1,4-benzodioxin-6-yl)-4-methyl-5-phenylpenta-2,4-dienamide	分子量：346.4 密度：N/A 沸点：N/A 熔点：N/A	1259230-61-9	C₂₁H₁₈N₂O₃
2-[[(Z)-2-Cyano-3-(3-hydroxy-4-methoxyphenyl)prop-2-enoyl]amino]benzoic acid	2-[[(Z)-2-Cyano-3-(3-hydroxy-4-methoxyphenyl)prop-2-enoyl]amino]benzoic acid	分子量：338.3 密度：N/A 沸点：N/A 熔点：N/A	1012974-22-9	C₁₈H₁₄N₂O₅
(Z)-N-(5-chloro-2-morpholin-4-ylphenyl)-2-cyano-3-(3-hydroxyphenyl)prop-2-enamide	(Z)-N-(5-chloro-2-morpholin-4-ylphenyl)-2-cyano-3-(3-hydroxyphenyl)prop-2-enamide	分子量：383.8 密度：N/A 沸点：N/A 熔点：N/A	1013244-17-1	C₂₀H₁₈ClN₃O₃
(Z)-2-Cyano-3-(4,5-dimethoxy-2-nitrophenyl)-N-[2-(trifluoromethyl)phenyl]prop-2-enamide	(Z)-2-Cyano-3-(4,5-dimethoxy-2-nitrophenyl)-N-[2-(trifluoromethyl)phenyl]prop-2-enamide	分子量：421.3 密度：N/A 沸点：N/A 熔点：N/A	1013263-81-4	C₁₉H₁₄F₃N₃O₅
4-[2-cyano-3-(4-hydroxy-3,5-dimethylphenyl)prop-2-enamido]-N,N-dimethylbenzamide	4-[2-cyano-3-(4-hydroxy-3,5-dimethylphenyl)prop-2-enamido]-N,N-dimethylbenzamide	分子量：363.4 密度：N/A 沸点：N/A 熔点：N/A	1259234-03-1	C₂₁H₂₁N₃O₃
N-(1-cyanocyclohexyl)-2-[methyl-[[4-(trifluoromethyl)phenyl]methyl]amino]propanamide	N-(1-cyanocyclohexyl)-2-[methyl-[[4-(trifluoromethyl)phenyl]methyl]amino]propanamide	分子量：367.4 密度：N/A 沸点：N/A 熔点：N/A	1259163-34-2	C₁₉H₂₄F₃N₃O
(E)-N-[2-(furan-2-yl)-2-pyrrolidin-1-ylethyl]-2-phenylethenesulfonamide	(E)-N-[2-(furan-2-yl)-2-pyrrolidin-1-ylethyl]-2-phenylethenesulfonamide	分子量：346.4 密度：N/A 沸点：N/A 熔点：N/A	1223872-05-6	C₁₈H₂₂N₂O₃S
Ethyl 1-[2-(4-chlorophenyl)ethenesulfonyl]piperidine-3-carboxylate	Ethyl 1-[2-(4-chlorophenyl)ethenesulfonyl]piperidine-3-carboxylate	分子量：357.9 密度：N/A 沸点：N/A 熔点：N/A	1252569-84-8	C₁₆H₂₀ClNO₄S
(E)-N-(9H-fluoren-2-yl)-2-phenylethenesulfonamide	(E)-N-(9H-fluoren-2-yl)-2-phenylethenesulfonamide	分子量：347.4 密度：N/A 沸点：N/A 熔点：N/A	1259235-78-3	C₂₁H₁₇NO₂S
3-(5-Fluoro-pyrimidin-2-yl)-phenylamine	3-(5-Fluoro-pyrimidin-2-yl)-phenylamine	分子量：189.19 密度：N/A 沸点：N/A 熔点：N/A	1035345-86-8	C₁₀H₈FN₃
4-Amino-2-propyl-8-trifluoromethoxyquinoline	4-Amino-2-propyl-8-trifluoromethoxyquinoline	分子量：270.25 密度：N/A 沸点：N/A 熔点：N/A	1266226-07-6	C₁₃H₁₃F₃N₂O
Methyl 3-methoxy-4-(2-methylallyloxy)benzoate	Methyl 3-methoxy-4-(2-methylallyloxy)benzoate	分子量：236.26 密度：N/A 沸点：N/A 熔点：N/A	955887-00-0	C₁₃H₁₆O₄
N-(1-cyano-1-cyclopropylethyl)-2-[2-(thiophen-2-yl)pyrrolidin-1-yl]acetamide	N-(1-cyano-1-cyclopropylethyl)-2-[2-(thiophen-2-yl)pyrrolidin-1-yl]acetamide	分子量：303.4 密度：N/A 沸点：N/A 熔点：N/A	1259196-71-8	C₁₆H₂₁N₃OS
1-(2,3-Dihydro-1,4-benzodioxin-6-yl)-3-[3-(pyrrolidin-1-ylmethyl)phenyl]thiourea	1-(2,3-Dihydro-1,4-benzodioxin-6-yl)-3-[3-(pyrrolidin-1-ylmethyl)phenyl]thiourea	分子量：369.5 密度：N/A 沸点：N/A 熔点：N/A	1351788-72-1	C₂₀H₂₃N₃O₂S
lithium 1-((2,5-difluoro-4-(2-(1-methyl-1H-pyrazol-4-yl)pyridin-4-yloxy)phenyl)carbamoyl)cyclopropanecarboxylate	lithium 1-((2,5-difluoro-4-(2-(1-methyl-1H-pyrazol-4-yl)pyridin-4-yloxy)phenyl)carbamoyl)cyclopropanecarboxylate	分子量：420.3 密度：N/A 沸点：N/A 熔点：N/A	1225278-49-8	C₂₀H₁₅F₂LiN₄O₄
N-cyclopropyl-3-[(3,4-dimethylphenyl)sulfanyl]propanamide	N-cyclopropyl-3-[(3,4-dimethylphenyl)sulfanyl]propanamide	分子量：249.37 密度：N/A 沸点：N/A 熔点：N/A	1252524-79-0	C₁₄H₁₉NOS
4-bromo-N-(furan-2-ylmethyl)-N-methyl-2-nitroaniline	4-bromo-N-(furan-2-ylmethyl)-N-methyl-2-nitroaniline	分子量：311.13 密度：N/A 沸点：N/A 熔点：N/A	1259045-46-9	C₁₂H₁₁BrN₂O₃
1-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-4-(prop-2-yn-1-yl)piperazine	1-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-4-(prop-2-yn-1-yl)piperazine	分子量：303.71 密度：N/A 沸点：N/A 熔点：N/A	1252345-26-8	C₁₃H₁₃ClF₃N₃
1-(3-Fluoro-4-methylphenyl)-3-(4-phenoxyphenyl)thiourea	1-(3-Fluoro-4-methylphenyl)-3-(4-phenoxyphenyl)thiourea	分子量：352.4 密度：N/A 沸点：N/A 熔点：N/A	1351808-58-6	C₂₀H₁₇FN₂OS
1-(3,5-dimethylphenyl)-N-(3-ethoxy-4-methoxybenzyl)-1H-1,2,3-triazole-4-carboxamide	1-(3,5-dimethylphenyl)-N-(3-ethoxy-4-methoxybenzyl)-1H-1,2,3-triazole-4-carboxamide	分子量：380.4 密度：N/A 沸点：N/A 熔点：N/A	1351843-45-2	C₂₁H₂₄N₄O₃
CID 53363787	CID 53363787	分子量：229.62 密度：N/A 沸点：N/A 熔点：N/A	1312603-33-0	C₉H₈ClNO₄
2-Methoxy-4-nitro-3-(phenylmethoxy)benzaldehyde	2-Methoxy-4-nitro-3-(phenylmethoxy)benzaldehyde	分子量：287.27 密度：N/A 沸点：N/A 熔点：N/A	1056003-25-8	C₁₅H₁₃NO₅
1-{[1-(4-fluoro-3-methylphenyl)-1H-1,2,3-triazol-4-yl]carbonyl}piperidin-4-amine	1-{[1-(4-fluoro-3-methylphenyl)-1H-1,2,3-triazol-4-yl]carbonyl}piperidin-4-amine	分子量：303.33 密度：N/A 沸点：N/A 熔点：N/A	1351828-31-3	C₁₅H₁₈FN₅O
N-[1-(pyridin-3-yl)ethyl]cyclopropanecarboxamide	N-[1-(pyridin-3-yl)ethyl]cyclopropanecarboxamide	分子量：190.24 密度：N/A 沸点：N/A 熔点：N/A	1252281-97-2	C₁₁H₁₄N₂O
N-[4-(azepan-1-yl)phenyl]-3,6-dichloropyridine-2-carboxamide	N-[4-(azepan-1-yl)phenyl]-3,6-dichloropyridine-2-carboxamide	分子量：364.3 密度：N/A 沸点：N/A 熔点：N/A	1259096-67-7	C₁₈H₁₉Cl₂N₃O
4-Cyano-2-ethoxyphenyl 3-[4,6-dimethyl-2-(methylsulfanyl)pyrimidin-5-yl]propanoate	4-Cyano-2-ethoxyphenyl 3-[4,6-dimethyl-2-(methylsulfanyl)pyrimidin-5-yl]propanoate	分子量：371.5 密度：N/A 沸点：N/A 熔点：N/A	1259158-59-2	C₁₉H₂₁N₃O₃S
3,6-dichloro-N-cyclopropyl-N-[(pyridin-3-yl)methyl]pyridine-2-carboxamide	3,6-dichloro-N-cyclopropyl-N-[(pyridin-3-yl)methyl]pyridine-2-carboxamide	分子量：322.2 密度：N/A 沸点：N/A 熔点：N/A	1183174-76-6	C₁₅H₁₃Cl₂N₃O
Benzo[b]thiophene-4-carboxamide,n-(2-aminoethyl)-	Benzo[b]thiophene-4-carboxamide,n-(2-aminoethyl)-	分子量：220.29 密度：N/A 沸点：N/A 熔点：N/A	1265896-60-3	C₁₁H₁₂N₂OS
Ethyl 4-(4-bromophenyl)-4,4-difluorobut-2-ynoate	Ethyl 4-(4-bromophenyl)-4,4-difluorobut-2-ynoate	分子量：303.10 密度：N/A 沸点：N/A 熔点：N/A	1311146-39-0	C₁₂H₉BrF₂O₂
1-[6-(3-fluorophenyl)pyridazin-3-yl]-N-pentylpiperidine-4-carboxamide	1-[6-(3-fluorophenyl)pyridazin-3-yl]-N-pentylpiperidine-4-carboxamide	分子量：370.5 密度：N/A 沸点：N/A 熔点：N/A	1189694-50-5	C₂₁H₂₇FN₄O
3-bromo-N-(2-bromophenyl)-5-methylpyridine-2-amine	3-bromo-N-(2-bromophenyl)-5-methylpyridine-2-amine	分子量：342.03 密度：N/A 沸点：N/A 熔点：N/A	1005498-93-0	C₁₂H₁₀Br₂N₂
7-bromo-3-chloro-1H-pyrrolo[2,3-c]pyridine	7-bromo-3-chloro-1H-pyrrolo[2,3-c]pyridine	分子量：231.48 密度：N/A 沸点：N/A 熔点：N/A	1190309-88-6	C₇H₄BrClN₂
Ethyl 5-bromo-3-(tetrahydro-2H-thiopyran-3-yl)-1H-indole-7-carboxylate	Ethyl 5-bromo-3-(tetrahydro-2H-thiopyran-3-yl)-1H-indole-7-carboxylate	分子量：368.3 密度：N/A 沸点：N/A 熔点：N/A	1065182-38-8	C₁₆H₁₈BrNO₂S