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-amino-1-[2-(4-chlorophenyl)ethyl]-4-(4-methyl-1,3-thiazol-2-yl)-1,2-dihydro-3H-pyrrol-3-one	5-amino-1-[2-(4-chlorophenyl)ethyl]-4-(4-methyl-1,3-thiazol-2-yl)-1,2-dihydro-3H-pyrrol-3-one	分子量：333.8 密度：N/A 沸点：N/A 熔点：N/A	951960-97-7	C₁₆H₁₆ClN₃OS
4-Boc-2,3,4,5-tetrahydropyrido[3,4-f][1,4]oxazepine-9-carbaldehyde	4-Boc-2,3,4,5-tetrahydropyrido[3,4-f][1,4]oxazepine-9-carbaldehyde	分子量：278.30 密度：N/A 沸点：N/A 熔点：N/A	2252274-84-1	C₁₄H₁₈N₂O₄
4-(4-(4-(3-(dimethylamino)prop-1-yn-1-yl)-3-fluorophenyl)-3,6-dihydropyridin-1(2H)-yl)-2-methyl-2-(methylsulfonyl)butanoic acid	4-(4-(4-(3-(dimethylamino)prop-1-yn-1-yl)-3-fluorophenyl)-3,6-dihydropyridin-1(2H)-yl)-2-methyl-2-(methylsulfonyl)butanoic acid	分子量：436.5 密度：N/A 沸点：N/A 熔点：N/A	2215065-33-9	C₂₂H₂₉FN₂O₄S
Methyl 4-bromo-2-methyl-2-(methylsulfonyl)butanoate	Methyl 4-bromo-2-methyl-2-(methylsulfonyl)butanoate	分子量：273.15 密度：N/A 沸点：N/A 熔点：N/A	2215065-09-9	C₇H₁₃BrO₄S
5-Bromo-4-(heptafluoropropyl)-1,3-thiazol-2-amine	5-Bromo-4-(heptafluoropropyl)-1,3-thiazol-2-amine	分子量：347.05 密度：N/A 沸点：N/A 熔点：N/A	1381762-52-2	C₆H₂BrF₇N₂S
2-[Phenyl(phenylsulfanyl)methyl]-2H-1,2,3-benzotriazole, with 1-[phenyl(phenylsulfanyl)-methyl]-1H-1,2,3-benzitriazole regio-isomer	2-[Phenyl(phenylsulfanyl)methyl]-2H-1,2,3-benzotriazole, with 1-[phenyl(phenylsulfanyl)-methyl]-1H-1,2,3-benzitriazole regio-isomer	分子量：634.8 密度：N/A 沸点：N/A 熔点：N/A	300679-75-8	C₃₈H₃₀N₆S₂
2-(4-Bromophenyl)-10,10-dimethyl-9(10h)-anthracenone	2-(4-Bromophenyl)-10,10-dimethyl-9(10h)-anthracenone	分子量：377.3 密度：N/A 沸点：N/A 熔点：N/A	2126777-59-9	C₂₂H₁₇BrO
4-{2-[5-amino-3-oxo-4-(4-phenyl-1,3-thiazol-2-yl)-2,3-dihydro-1H-pyrrol-1-yl]ethyl}benzenesulfonamide	4-{2-[5-amino-3-oxo-4-(4-phenyl-1,3-thiazol-2-yl)-2,3-dihydro-1H-pyrrol-1-yl]ethyl}benzenesulfonamide	分子量：440.5 密度：N/A 沸点：N/A 熔点：N/A	929961-80-8	C₂₁H₂₀N₄O₃S₂
1-(1,1-dioxidotetrahydrothiophen-3-yl)-5-imino-4-[4-(4-methoxyphenyl)-1,3-thiazol-2-yl]-2,5-dihydro-1H-pyrrol-3-ol	1-(1,1-dioxidotetrahydrothiophen-3-yl)-5-imino-4-[4-(4-methoxyphenyl)-1,3-thiazol-2-yl]-2,5-dihydro-1H-pyrrol-3-ol	分子量：405.5 密度：N/A 沸点：N/A 熔点：N/A	929961-57-9	C₁₈H₁₉N₃O₄S₂
4-(4,5-dimethyl-1,3-thiazol-2-yl)-5-imino-1-[2-(thiophen-2-yl)ethyl]-2,5-dihydro-1H-pyrrol-3-ol	4-(4,5-dimethyl-1,3-thiazol-2-yl)-5-imino-1-[2-(thiophen-2-yl)ethyl]-2,5-dihydro-1H-pyrrol-3-ol	分子量：319.4 密度：N/A 沸点：N/A 熔点：N/A	951989-35-8	C₁₅H₁₇N₃OS₂
4-Amino-3,6-bis[2-[5-[[4-chloro-6-[(4-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-2-sulfophenyl]diazenyl]-5-hydroxy-2,7-naphthalenedisulfonic acid	4-Amino-3,6-bis[2-[5-[[4-chloro-6-[(4-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-2-sulfophenyl]diazenyl]-5-hydroxy-2,7-naphthalenedisulfonic acid	分子量：1287.1 密度：N/A 沸点：N/A 熔点：N/A	171966-16-8	C₄₀H₂₉Cl₂N₁₅O₁₉S₆
1-[(Z)-[(4-Phenylpiperazin-1-YL)imino]methyl]naphthalen-2-OL	1-[(Z)-[(4-Phenylpiperazin-1-YL)imino]methyl]naphthalen-2-OL	分子量：331.4 密度：N/A 沸点：N/A 熔点：N/A	307347-68-8	C₂₁H₂₁N₃O
4-[5-amino-4-(1,3-benzothiazol-2-yl)-3-oxo-2,3-dihydro-1H-pyrrol-1-yl]benzoic acid	4-[5-amino-4-(1,3-benzothiazol-2-yl)-3-oxo-2,3-dihydro-1H-pyrrol-1-yl]benzoic acid	分子量：351.4 密度：N/A 沸点：N/A 熔点：N/A	610278-84-7	C₁₈H₁₃N₃O₃S
4-(1,3-benzothiazol-2-yl)-1-[2-(dimethylamino)ethyl]-5-imino-2H-pyrrol-3-ol	4-(1,3-benzothiazol-2-yl)-1-[2-(dimethylamino)ethyl]-5-imino-2H-pyrrol-3-ol	分子量：302.4 密度：N/A 沸点：N/A 熔点：N/A	730973-70-3	C₁₅H₁₈N₄OS
5-amino-4-[4-(3,4-dimethoxyphenyl)-1,3-thiazol-2-yl]-1-(2-isopropylphenyl)-1,2-dihydro-3H-pyrrol-3-one	5-amino-4-[4-(3,4-dimethoxyphenyl)-1,3-thiazol-2-yl]-1-(2-isopropylphenyl)-1,2-dihydro-3H-pyrrol-3-one	分子量：435.5 密度：N/A 沸点：N/A 熔点：N/A	929857-95-4	C₂₄H₂₅N₃O₃S
2-[(3-chlorobenzyl)amino]-5-{(E)-[3-(2-pyrimidinyloxy)phenyl]methylidene}-1,3-thiazol-4(5H)-one	2-[(3-chlorobenzyl)amino]-5-{(E)-[3-(2-pyrimidinyloxy)phenyl]methylidene}-1,3-thiazol-4(5H)-one	分子量：422.9 密度：N/A 沸点：N/A 熔点：N/A	860789-45-3	C₂₁H₁₅ClN₄O₂S
2-[2-(Methoxymethyl)-1,3-thiazol-4-yl]ethan-1-ol	2-[2-(Methoxymethyl)-1,3-thiazol-4-yl]ethan-1-ol	分子量：173.24 密度：N/A 沸点：N/A 熔点：N/A	1849283-24-4	C₇H₁₁NO₂S
1-[2-(Methylsulfanyl)ethyl]cyclopropane-1-carbonitrile	1-[2-(Methylsulfanyl)ethyl]cyclopropane-1-carbonitrile	分子量：141.24 密度：N/A 沸点：N/A 熔点：N/A	1882579-93-2	C₇H₁₁NS
2-(Difluoromethyl)-2H-chromene-3-carboxylic acid	2-(Difluoromethyl)-2H-chromene-3-carboxylic acid	分子量：226.18 密度：N/A 沸点：N/A 熔点：N/A	2138427-03-7	C₁₁H₈F₂O₃
4-(5-Chloro-2-methylphenyl)piperidine hydrochloride	4-(5-Chloro-2-methylphenyl)piperidine hydrochloride	分子量：246.17 密度：N/A 沸点：N/A 熔点：N/A	2126176-90-5	C₁₂H₁₇Cl₂N
1-(2-Amino-4-phenyl-1,3-thiazol-5-yl)ethan-1-one hydrochloride	1-(2-Amino-4-phenyl-1,3-thiazol-5-yl)ethan-1-one hydrochloride	分子量：254.74 密度：N/A 沸点：N/A 熔点：N/A	2126163-57-1	C₁₁H₁₁ClN₂OS
2-[4-(chloromethyl)-1,3-thiazol-2-yl]-N-(2,5-dimethylphenyl)acetamide hydrochloride	2-[4-(chloromethyl)-1,3-thiazol-2-yl]-N-(2,5-dimethylphenyl)acetamide hydrochloride	分子量：331.3 密度：N/A 沸点：N/A 熔点：N/A	2126160-19-6	C₁₄H₁₆Cl₂N₂OS
Benzyl(2-methoxyethyl)amine hydrochloride	Benzyl(2-methoxyethyl)amine hydrochloride	分子量：201.69 密度：N/A 沸点：N/A 熔点：N/A	2126178-78-5	C₁₀H₁₆ClNO
{[5-(2-Chlorophenyl)-1,3,4-oxadiazol-2-yl]methyl}(propan-2-yl)amine hydrochloride	{[5-(2-Chlorophenyl)-1,3,4-oxadiazol-2-yl]methyl}(propan-2-yl)amine hydrochloride	分子量：288.17 密度：N/A 沸点：N/A 熔点：N/A	2126177-79-3	C₁₂H₁₅Cl₂N₃O
2-Phenyl-1-(3-phenyl-1,2,4-oxadiazol-5-yl)ethan-1-amine oxalate	2-Phenyl-1-(3-phenyl-1,2,4-oxadiazol-5-yl)ethan-1-amine oxalate	分子量：355.3 密度：N/A 沸点：N/A 熔点：N/A	2126176-74-5	C₁₈H₁₇N₃O₅
[(6-Methoxynaphthalen-2-yl)methyl](methyl)amine hydrochloride	[(6-Methoxynaphthalen-2-yl)methyl](methyl)amine hydrochloride	分子量：237.72 密度：N/A 沸点：N/A 熔点：N/A	2126160-33-4	C₁₃H₁₆ClNO
N,N,3,5-tetramethyl-1H-pyrazole-4-sulfonamide hydrochloride	N,N,3,5-tetramethyl-1H-pyrazole-4-sulfonamide hydrochloride	分子量：239.72 密度：N/A 沸点：N/A 熔点：N/A	2126159-97-3	C₇H₁₄ClN₃O₂S
(4-Fluorophenyl)(thiophen-2-yl)methanamine hydrochloride	(4-Fluorophenyl)(thiophen-2-yl)methanamine hydrochloride	分子量：243.73 密度：N/A 沸点：N/A 熔点：N/A	2126179-15-3	C₁₁H₁₁ClFNS
8-Thia-4,6,11-triazatricyclo[7.4.0.0,2,7]trideca-1(9),2,4,6-tetraen-3-amine dihydrochloride	8-Thia-4,6,11-triazatricyclo[7.4.0.0,2,7]trideca-1(9),2,4,6-tetraen-3-amine dihydrochloride	分子量：279.19 密度：N/A 沸点：N/A 熔点：N/A	2126160-51-6	C₉H₁₂Cl₂N₄S
N-[4-(aminomethyl)phenyl]cyclopropanecarboxamide hydrochloride	N-[4-(aminomethyl)phenyl]cyclopropanecarboxamide hydrochloride	分子量：226.70 密度：N/A 沸点：N/A 熔点：N/A	2126161-93-9	C₁₁H₁₅ClN₂O
1,4-dioxane, 2-(3-chloropropanamido)-N-cyclopropylbenzamide	1,4-dioxane, 2-(3-chloropropanamido)-N-cyclopropylbenzamide	分子量：354.8 密度：N/A 沸点：N/A 熔点：N/A	2126161-23-5	C₁₇H₂₃ClN₂O₄
{[1-(difluoromethyl)-1H-1,3-benzodiazol-2-yl]methyl}(methyl)amine dihydrochloride	{[1-(difluoromethyl)-1H-1,3-benzodiazol-2-yl]methyl}(methyl)amine dihydrochloride	分子量：284.13 密度：N/A 沸点：N/A 熔点：N/A	2126162-05-6	C₁₀H₁₃Cl₂F₂N₃
3-((2-(Diethylamino)ethyl)amino)tetrahydrothiophene 1,1-dioxide dihydrochloride	3-((2-(Diethylamino)ethyl)amino)tetrahydrothiophene 1,1-dioxide dihydrochloride	分子量：307.3 密度：N/A 沸点：N/A 熔点：N/A	2126178-81-0	C₁₀H₂₄Cl₂N₂O₂S
3-Cyclopropyl-3-methylbutane-1-sulfonyl chloride	3-Cyclopropyl-3-methylbutane-1-sulfonyl chloride	分子量：210.72 密度：N/A 沸点：N/A 熔点：N/A	2008796-12-9	C₈H₁₅ClO₂S
2,6-Dimethylpiperidine-1-carboximidamide hemisulfate	2,6-Dimethylpiperidine-1-carboximidamide hemisulfate	分子量：408.6 密度：N/A 沸点：N/A 熔点：N/A	2126161-26-8	C₁₆H₃₆N₆O₄S
N-(2-Aminoethyl)-2-thiophenecarboxamide HCl	N-(2-Aminoethyl)-2-thiophenecarboxamide HCl	分子量：206.69 密度：N/A 沸点：N/A 熔点：N/A	1211461-34-5	C₇H₁₁ClN₂OS
(6-Amino-5-chloropyridin-3-yl)methanol hydrochloride	(6-Amino-5-chloropyridin-3-yl)methanol hydrochloride	分子量：195.04 密度：N/A 沸点：N/A 熔点：N/A	2126177-85-1	C₆H₈Cl₂N₂O
N-Ethyl-5H,6H,7H,8H-pyrido[4,3-c]pyridazin-3-amine dihydrochloride	N-Ethyl-5H,6H,7H,8H-pyrido[4,3-c]pyridazin-3-amine dihydrochloride	分子量：251.15 密度：N/A 沸点：N/A 熔点：N/A	2126162-01-2	C₉H₁₆Cl₂N₄
1-[1-(Aminomethyl)cyclopropyl]cyclohexan-1-ol	1-[1-(Aminomethyl)cyclopropyl]cyclohexan-1-ol	分子量：169.26 密度：N/A 沸点：N/A 熔点：N/A	1862778-88-8	C₁₀H₁₉NO
3-(trifluoromethyl)-5H,6H,7H,8H-imidazo[1,5-a]pyridine-1-carbaldehyde	3-(trifluoromethyl)-5H,6H,7H,8H-imidazo[1,5-a]pyridine-1-carbaldehyde	分子量：218.18 密度：N/A 沸点：N/A 熔点：N/A	2126177-07-7	C₉H₉F₃N₂O
2-(1,4-Diazepan-1-yl)-N-methylacetamide dihydrochloride	2-(1,4-Diazepan-1-yl)-N-methylacetamide dihydrochloride	分子量：244.16 密度：N/A 沸点：N/A 熔点：N/A	2126177-11-3	C₈H₁₉Cl₂N₃O
3-(4-Methylphenyl)propane-1,2-diamine dihydrochloride	3-(4-Methylphenyl)propane-1,2-diamine dihydrochloride	分子量：237.17 密度：N/A 沸点：N/A 熔点：N/A	2126160-81-2	C₁₀H₁₈Cl₂N₂
3-Bromo-N-(4-tert-butyl-1-cyanocyclohexyl)pyridine-4-carboxamide	3-Bromo-N-(4-tert-butyl-1-cyanocyclohexyl)pyridine-4-carboxamide	分子量：364.3 密度：N/A 沸点：N/A 熔点：N/A	2177059-07-1	C₁₇H₂₂BrN₃O
4-(3-Amino-2,2-dimethylcyclopropyl)benzonitrile	4-(3-Amino-2,2-dimethylcyclopropyl)benzonitrile	分子量：186.25 密度：N/A 沸点：N/A 熔点：N/A	1700571-85-2	C₁₂H₁₄N₂
2-(6-Chloro-2,3-difluorophenyl)-2,2-difluoroacetic acid	2-(6-Chloro-2,3-difluorophenyl)-2,2-difluoroacetic acid	分子量：242.55 密度：N/A 沸点：N/A 熔点：N/A	1852879-59-4	C₈H₃ClF₄O₂
N-(4-tert-butyl-1-cyanocyclohexyl)pyrazolo[1,5-a]pyridine-3-carboxamide	N-(4-tert-butyl-1-cyanocyclohexyl)pyrazolo[1,5-a]pyridine-3-carboxamide	分子量：324.4 密度：N/A 沸点：N/A 熔点：N/A	2177059-08-2	C₁₉H₂₄N₄O
5'-Carboxy-2'-deoxycytidine	5'-Carboxy-2'-deoxycytidine	分子量：271.23 密度：N/A 沸点：N/A 熔点：N/A	4603-72-9	C₁₀H₁₃N₃O₆
4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-5-(morpholin-4-yl)pentanoic acid	4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-5-(morpholin-4-yl)pentanoic acid	分子量：424.5 密度：N/A 沸点：N/A 熔点：N/A	2137517-17-8	C₂₄H₂₈N₂O₅
2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-[3-(trifluoromethyl)-1H-pyrazol-1-yl]propanoic acid	2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-[3-(trifluoromethyl)-1H-pyrazol-1-yl]propanoic acid	分子量：445.4 密度：N/A 沸点：N/A 熔点：N/A	2137448-31-6	C₂₂H₁₈F₃N₃O₄
4-(1-Methyl-1H-imidazol-4-yl)-2-pyridinamine	4-(1-Methyl-1H-imidazol-4-yl)-2-pyridinamine	分子量：174.20 密度：N/A 沸点：N/A 熔点：N/A	1862841-98-2	C₉H₁₀N₄