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
N1-((3-(mesitylsulfonyl)oxazolidin-2-yl)methyl)-N2-(pyridin-3-ylmethyl)oxalamide	N1-((3-(mesitylsulfonyl)oxazolidin-2-yl)methyl)-N2-(pyridin-3-ylmethyl)oxalamide	分子量：446.5 密度：N/A 沸点：N/A 熔点：N/A	868982-83-6	C₂₁H₂₆N₄O₅S
N1-(furan-2-ylmethyl)-N2-((3-(phenylsulfonyl)oxazolidin-2-yl)methyl)oxalamide	N1-(furan-2-ylmethyl)-N2-((3-(phenylsulfonyl)oxazolidin-2-yl)methyl)oxalamide	分子量：393.4 密度：N/A 沸点：N/A 熔点：N/A	868981-77-5	C₁₇H₁₉N₃O₆S
N'-[(4-fluorophenyl)methyl]-N-{[3-(thiophene-2-sulfonyl)-1,3-oxazolidin-2-yl]methyl}ethanediamide	N'-[(4-fluorophenyl)methyl]-N-{[3-(thiophene-2-sulfonyl)-1,3-oxazolidin-2-yl]methyl}ethanediamide	分子量：427.5 密度：N/A 沸点：N/A 熔点：N/A	874804-72-5	C₁₇H₁₈FN₃O₅S₂
4-Methylbenzoic acid [6-[[[5-[[cyclopropyl(oxo)methyl]amino]-1,3,4-thiadiazol-2-yl]thio]methyl]-4-oxo-3-pyranyl] ester	4-Methylbenzoic acid [6-[[[5-[[cyclopropyl(oxo)methyl]amino]-1,3,4-thiadiazol-2-yl]thio]methyl]-4-oxo-3-pyranyl] ester	分子量：443.5 密度：N/A 沸点：N/A 熔点：N/A	877650-74-3	C₂₀H₁₇N₃O₅S₂
6-(((5-(cyclopropanecarboxamido)-1,3,4-thiadiazol-2-yl)thio)methyl)-4-oxo-4H-pyran-3-yl 3,5-dimethylbenzoate	6-(((5-(cyclopropanecarboxamido)-1,3,4-thiadiazol-2-yl)thio)methyl)-4-oxo-4H-pyran-3-yl 3,5-dimethylbenzoate	分子量：457.5 密度：N/A 沸点：N/A 熔点：N/A	877650-76-5	C₂₁H₁₉N₃O₅S₂
2-((3-(4-chlorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)-1-(3,4-dihydroquinolin-1(2H)-yl)ethanone	2-((3-(4-chlorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)-1-(3,4-dihydroquinolin-1(2H)-yl)ethanone	分子量：435.9 密度：N/A 沸点：N/A 熔点：N/A	852373-07-0	C₂₂H₁₈ClN₅OS
N-(2-(6-((2-((2,4-dimethylphenyl)amino)-2-oxoethyl)thio)-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)ethyl)-4-methylbenzamide	N-(2-(6-((2-((2,4-dimethylphenyl)amino)-2-oxoethyl)thio)-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)ethyl)-4-methylbenzamide	分子量：474.6 密度：N/A 沸点：N/A 熔点：N/A	872994-64-4	C₂₅H₂₆N₆O₂S
6-(((5-(cyclopropanecarboxamido)-1,3,4-thiadiazol-2-yl)thio)methyl)-4-oxo-4H-pyran-3-yl 3-methylbenzoate	6-(((5-(cyclopropanecarboxamido)-1,3,4-thiadiazol-2-yl)thio)methyl)-4-oxo-4H-pyran-3-yl 3-methylbenzoate	分子量：443.5 密度：N/A 沸点：N/A 熔点：N/A	877650-72-1	C₂₀H₁₇N₃O₅S₂
N1-((3-((4-chlorophenyl)sulfonyl)oxazolidin-2-yl)methyl)-N2-(furan-2-ylmethyl)oxalamide	N1-((3-((4-chlorophenyl)sulfonyl)oxazolidin-2-yl)methyl)-N2-(furan-2-ylmethyl)oxalamide	分子量：427.9 密度：N/A 沸点：N/A 熔点：N/A	874805-63-7	C₁₇H₁₈ClN₃O₆S
N1-(furan-2-ylmethyl)-N2-((3-tosyloxazolidin-2-yl)methyl)oxalamide	N1-(furan-2-ylmethyl)-N2-((3-tosyloxazolidin-2-yl)methyl)oxalamide	分子量：407.4 密度：N/A 沸点：N/A 熔点：N/A	874806-07-2	C₁₈H₂₁N₃O₆S
N1-(3-(1H-imidazol-1-yl)propyl)-N2-((3-((3,4-dimethoxyphenyl)sulfonyl)oxazolidin-2-yl)methyl)oxalamide	N1-(3-(1H-imidazol-1-yl)propyl)-N2-((3-((3,4-dimethoxyphenyl)sulfonyl)oxazolidin-2-yl)methyl)oxalamide	分子量：481.5 密度：N/A 沸点：N/A 熔点：N/A	868983-26-0	C₂₀H₂₇N₅O₇S
2-((3-(3,4-dimethoxyphenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)-N-(thiazol-2-yl)acetamide	2-((3-(3,4-dimethoxyphenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)-N-(thiazol-2-yl)acetamide	分子量：428.5 密度：N/A 沸点：N/A 熔点：N/A	852437-80-0	C₁₈H₁₆N₆O₃S₂
1-(Methylsulfonyl)azetidin-3-yl methanesulfonate	1-(Methylsulfonyl)azetidin-3-yl methanesulfonate	分子量：229.3 密度：N/A 沸点：N/A 熔点：N/A	1458653-06-9	C₅H₁₁NO₅S₂
Hexyl N-(phenylmethyl)sulfamate	Hexyl N-(phenylmethyl)sulfamate	分子量：271.38 密度：N/A 沸点：N/A 熔点：N/A	108583-54-6	C₁₃H₂₁NO₃S
rel-Methyl (1R,2S)-1,2-dimethylcyclopropanecarboxylate	rel-Methyl (1R,2S)-1,2-dimethylcyclopropanecarboxylate	分子量：128.17 密度：N/A 沸点：N/A 熔点：N/A	20515-20-2	C₇H₁₂O₂
3-Hydroxy-3-methyl-2,4-nonanedione	3-Hydroxy-3-methyl-2,4-nonanedione	分子量：186.25 密度：N/A 沸点：N/A 熔点：N/A	544409-58-7	C₁₀H₁₈O₃
Fmoc-D-Ala(1-Pyn)-OH	Fmoc-D-Ala(1-Pyn)-OH	分子量：511.6 密度：N/A 沸点：N/A 熔点：N/A	406955-45-1	C₃₄H₂₅NO₄
(1R)-Spiro[2.2]pentane-1-acetic acid	(1R)-Spiro[2.2]pentane-1-acetic acid	分子量：126.15 密度：N/A 沸点：N/A 熔点：N/A	206757-44-0	C₇H₁₀O₂
2-(2-Naphthamido)benzoic acid	2-(2-Naphthamido)benzoic acid	分子量：291.3 密度：N/A 沸点：N/A 熔点：N/A	106696-36-0	C₁₈H₁₃NO₃
4-Chloro-7,8-dihydro-6H-thiopyrano[3,2-D]pyrimidine	4-Chloro-7,8-dihydro-6H-thiopyrano[3,2-D]pyrimidine	分子量：186.66 密度：N/A 沸点：N/A 熔点：N/A	111896-68-5	C₇H₇ClN₂S
5-Bromo-8-methoxy-2-(trifluoromethyl)quinoline	5-Bromo-8-methoxy-2-(trifluoromethyl)quinoline	分子量：306.08 密度：N/A 沸点：N/A 熔点：N/A	199872-02-1	C₁₁H₇BrF₃NO
1-(Adamantan-1-yl)-2-aminoethan-1-one	1-(Adamantan-1-yl)-2-aminoethan-1-one	分子量：193.28 密度：N/A 沸点：N/A 熔点：N/A	754915-37-2	C₁₂H₁₉NO
3-Methyl-3-(4-methylphenyl)oxirane-2-carbonitrile	3-Methyl-3-(4-methylphenyl)oxirane-2-carbonitrile	分子量：173.21 密度：N/A 沸点：N/A 熔点：N/A	1851587-02-4	C₁₁H₁₁NO
3-(4-Bromophenyl)-3-methyloxirane-2-carbonitrile	3-(4-Bromophenyl)-3-methyloxirane-2-carbonitrile	分子量：238.08 密度：N/A 沸点：N/A 熔点：N/A	1877294-23-9	C₁₀H₈BrNO
(2S)-3,6-Dihydro-2-[(1S)-1-phenylethyl]-2H-pyran	(2S)-3,6-Dihydro-2-[(1S)-1-phenylethyl]-2H-pyran	分子量：188.26 密度：N/A 沸点：N/A 熔点：N/A	1429651-71-7	C₁₃H₁₆O
(5S)-3-[(2R,13R)-2,13-Dihydroxy-13-[(2R,5S)-tetrahydro-5-[(1S,4Z)-1-hydroxy-4-pentadecen-1-yl]-2-furanyl]tridecyl]-5-methyl-2(5H)-furanone	(5S)-3-[(2R,13R)-2,13-Dihydroxy-13-[(2R,5S)-tetrahydro-5-[(1S,4Z)-1-hydroxy-4-pentadecen-1-yl]-2-furanyl]tridecyl]-5-methyl-2(5H)-furanone	分子量：606.9 密度：N/A 沸点：N/A 熔点：N/A	168075-11-4	C₃₇H₆₆O₆
2,7-Dimethylindoline	2,7-Dimethylindoline	分子量：147.22 密度：N/A 沸点：N/A 熔点：N/A	41652-78-2	C₁₀H₁₃N
2-(4-ethoxyphenyl)-N-(4-(6-(pyrrolidin-1-yl)pyridazin-3-yl)phenyl)acetamide	2-(4-ethoxyphenyl)-N-(4-(6-(pyrrolidin-1-yl)pyridazin-3-yl)phenyl)acetamide	分子量：402.5 密度：N/A 沸点：N/A 熔点：N/A	899745-83-6	C₂₄H₂₆N₄O₂
methyl 4-(3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzoate	methyl 4-(3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzoate	分子量：232.23 密度：N/A 沸点：N/A 熔点：N/A	60798-07-4	C₁₂H₁₂N₂O₃
2-Amino-3-hydroxy-4-methylpent-4-enoic acid	2-Amino-3-hydroxy-4-methylpent-4-enoic acid	分子量：145.16 密度：N/A 沸点：N/A 熔点：N/A	2228108-76-5	C₆H₁₁NO₃
N-(5-bromo-2-pyrimidinyl)-4-methylbenzenesulfonamide	N-(5-bromo-2-pyrimidinyl)-4-methylbenzenesulfonamide	分子量：328.19 密度：N/A 沸点：N/A 熔点：N/A	91348-67-3	C₁₁H₁₀BrN₃O₂S
(2S)-2-(9H-Fluorene-9-ylmethoxycarbonylamino)-4-oxo-4-[6-(dimethylamino)-2-naphthyl]butanoic acid	(2S)-2-(9H-Fluorene-9-ylmethoxycarbonylamino)-4-oxo-4-[6-(dimethylamino)-2-naphthyl]butanoic acid	分子量：508.6 密度：N/A 沸点：N/A 熔点：N/A	453559-06-3	C₃₁H₂₈N₂O₅
rac-ethyl 2-[(1R,2R)-2-aminocyclohexyl]acetate	rac-ethyl 2-[(1R,2R)-2-aminocyclohexyl]acetate	分子量：185.26 密度：N/A 沸点：N/A 熔点：N/A	882654-36-6	C₁₀H₁₉NO₂
Ethyl 3-(2-aminocyclohexyl)propanoate	Ethyl 3-(2-aminocyclohexyl)propanoate	分子量：199.29 密度：N/A 沸点：N/A 熔点：N/A	1823793-83-4	C₁₁H₂₁NO₂
[3,4'-Bipyridine]-5-carbonitrile,6-(1-pyrrolidin	[3,4'-Bipyridine]-5-carbonitrile,6-(1-pyrrolidin	分子量：250.30 密度：N/A 沸点：N/A 熔点：N/A	120137-95-3	C₁₅H₁₄N₄
2-((1S,2R)-2-Aminocyclohexyl)acetic acid	2-((1S,2R)-2-Aminocyclohexyl)acetic acid	分子量：157.21 密度：N/A 沸点：N/A 熔点：N/A	84673-67-6	C₈H₁₅NO₂
[3,4'-Bipyridine]-5-carbonitrile,6-[[1-(hydroxym	[3,4'-Bipyridine]-5-carbonitrile,6-[[1-(hydroxym	分子量：268.31 密度：N/A 沸点：N/A 熔点：N/A	108610-80-6	C₁₅H₁₆N₄O
(E)-5-phenylpent-2-en-1-ol	(E)-5-phenylpent-2-en-1-ol	分子量：162.23 密度：N/A 沸点：N/A 熔点：N/A	39520-63-3	C₁₁H₁₄O
2-(Methoxyethylamino)-propionitrile	2-(Methoxyethylamino)-propionitrile	分子量：128.17 密度：N/A 沸点：N/A 熔点：N/A	105510-43-8	C₆H₁₂N₂O
1h-Indole-3-acetic acid,6-bromo-1-[(1,1-dimethylethoxy)carbonyl]-2-iodo-,methyl ester	1h-Indole-3-acetic acid,6-bromo-1-[(1,1-dimethylethoxy)carbonyl]-2-iodo-,methyl ester	分子量：494.12 密度：N/A 沸点：N/A 熔点：N/A	916244-27-4	C₁₆H₁₇BrINO₄
Oxolane-3-carbothioamide	Oxolane-3-carbothioamide	分子量：131.20 密度：N/A 沸点：N/A 熔点：N/A	926269-43-4	C₅H₉NOS
N-(4-Pyridinylmethylene)-4-morpholinebutanamine	N-(4-Pyridinylmethylene)-4-morpholinebutanamine	分子量：247.34 密度：N/A 沸点：N/A 熔点：N/A	165806-96-2	C₁₄H₂₁N₃O
[2-[(8S,9S,10R,13S,14S,17R)-17-hydroxy-10,13-dimethyl-3,11-dioxo-6,7,8,9,12,14,15,16-octahydrocyclopenta[a]phenanthren-17-yl]-2-oxoethyl] 4-[4-[bis(2-chloroethyl)amino]phenyl]butanoate	[2-[(8S,9S,10R,13S,14S,17R)-17-hydroxy-10,13-dimethyl-3,11-dioxo-6,7,8,9,12,14,15,16-octahydrocyclopenta[a]phenanthren-17-yl]-2-oxoethyl] 4-[4-[bis(2-chloroethyl)amino]phenyl]butanoate	分子量：644.6 密度：N/A 沸点：N/A 熔点：N/A	174283-27-3	C₃₅H₄₃Cl₂NO₆
Benzamide,5-chloro-n-[2-[2-(3,4-dichlorophenyl)ethoxy]-5-(trifluoromethyl)phenyl]-2-hydroxy-	Benzamide,5-chloro-n-[2-[2-(3,4-dichlorophenyl)ethoxy]-5-(trifluoromethyl)phenyl]-2-hydroxy-	分子量：504.7 密度：N/A 沸点：N/A 熔点：N/A	648925-04-6	C₂₂H₁₅Cl₃F₃NO₃
N-[3-Chloro-4-(pyridin-2-ylmethoxy)phenyl]-5-(2-oxo-2-piperazin-1-ylethoxy)quinazolin-4-amine	N-[3-Chloro-4-(pyridin-2-ylmethoxy)phenyl]-5-(2-oxo-2-piperazin-1-ylethoxy)quinazolin-4-amine	分子量：505.0 密度：N/A 沸点：N/A 熔点：N/A	871018-73-4	C₂₆H₂₅ClN₆O₃
1-ethyl-4-{1-[2-oxo-2-(piperidin-1-yl)ethyl]-1H-benzimidazol-2-yl}pyrrolidin-2-one	1-ethyl-4-{1-[2-oxo-2-(piperidin-1-yl)ethyl]-1H-benzimidazol-2-yl}pyrrolidin-2-one	分子量：354.4 密度：N/A 沸点：N/A 熔点：N/A	915189-59-2	C₂₀H₂₆N₄O₂
(Z)-2-(3-Methoxyallyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	(Z)-2-(3-Methoxyallyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	分子量：198.07 密度：N/A 沸点：N/A 熔点：N/A	77896-96-9	C₁₀H₁₉BO₃
2-Pyrrolidinone, 1-((2S)-2-(1,3-dioxolan-2-yl)-2-methyl-6-nitro-2H-1-benzopyran-4-yl)-	2-Pyrrolidinone, 1-((2S)-2-(1,3-dioxolan-2-yl)-2-methyl-6-nitro-2H-1-benzopyran-4-yl)-	分子量：346.3 密度：N/A 沸点：N/A 熔点：N/A	181137-41-7	C₁₇H₁₈N₂O₆
2-(4-((3,4-dihydroisoquinolin-2(1H)-yl)sulfonyl)benzamido)-6-methyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxamide hydrochloride	2-(4-((3,4-dihydroisoquinolin-2(1H)-yl)sulfonyl)benzamido)-6-methyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxamide hydrochloride	分子量：547.1 密度：N/A 沸点：N/A 熔点：N/A	1215628-18-4	C₂₅H₂₇ClN₄O₄S₂
2,5-difluoro-N-(5-(6-methoxyimidazo[1,2-b]pyridazin-2-yl)-2-methylphenyl)benzenesulfonamide	2,5-difluoro-N-(5-(6-methoxyimidazo[1,2-b]pyridazin-2-yl)-2-methylphenyl)benzenesulfonamide	分子量：430.4 密度：N/A 沸点：N/A 熔点：N/A	946290-82-0	C₂₀H₁₆F₂N₄O₃S