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
N-cyclopropyl-2-(methylthio)-N-(thiophen-3-ylmethyl)benzamide	N-cyclopropyl-2-(methylthio)-N-(thiophen-3-ylmethyl)benzamide	分子量：303.4 密度：N/A 沸点：N/A 熔点：N/A	1235291-05-0	C₁₆H₁₇NOS₂
N-cyclopropyl-2-(methylthio)-N-(thiophen-3-ylmethyl)nicotinamide	N-cyclopropyl-2-(methylthio)-N-(thiophen-3-ylmethyl)nicotinamide	分子量：304.4 密度：N/A 沸点：N/A 熔点：N/A	1235148-74-9	C₁₅H₁₆N₂OS₂
N-cyclopropyl-N-(thiophen-3-ylmethyl)-1-naphthamide	N-cyclopropyl-N-(thiophen-3-ylmethyl)-1-naphthamide	分子量：307.4 密度：N/A 沸点：N/A 熔点：N/A	1234919-65-3	C₁₉H₁₇NOS
2-[2-(4-Fluorophenyl)-1,3-oxazol-4-yl]ethan-1-amine hydrochloride	2-[2-(4-Fluorophenyl)-1,3-oxazol-4-yl]ethan-1-amine hydrochloride	分子量：242.68 密度：N/A 沸点：N/A 熔点：N/A	1240527-56-3	C₁₁H₁₂ClFN₂O
2-[(Pyrrolidine-1-carbothioyl)-amino]-benzoic acid methyl ester	2-[(Pyrrolidine-1-carbothioyl)-amino]-benzoic acid methyl ester	分子量：264.35 密度：N/A 沸点：N/A 熔点：N/A	1174034-81-1	C₁₃H₁₆N₂O₂S
1-Bromo-4-(1-bromopropyl)benzene	1-Bromo-4-(1-bromopropyl)benzene	分子量：277.98 密度：N/A 沸点：N/A 熔点：N/A	1094335-60-0	C₉H₁₀Br₂
1-(Bromomethyl)-2-propoxybenzene	1-(Bromomethyl)-2-propoxybenzene	分子量：229.11 密度：N/A 沸点：N/A 熔点：N/A	2606-59-9	C₁₀H₁₃BrO
Cyclohexanone, 2-chloro-4-methoxy-	Cyclohexanone, 2-chloro-4-methoxy-	分子量：162.61 密度：N/A 沸点：N/A 熔点：N/A	927180-14-1	C₇H₁₁ClO₂
N-cyclopropyl-2-(4-methoxyphenyl)-N-(thiophen-3-ylmethyl)ethanesulfonamide	N-cyclopropyl-2-(4-methoxyphenyl)-N-(thiophen-3-ylmethyl)ethanesulfonamide	分子量：351.5 密度：N/A 沸点：N/A 熔点：N/A	1234853-91-8	C₁₇H₂₁NO₃S₂
5-chloro-N-cyclopropyl-2-methoxy-N-(thiophen-3-ylmethyl)benzenesulfonamide	5-chloro-N-cyclopropyl-2-methoxy-N-(thiophen-3-ylmethyl)benzenesulfonamide	分子量：357.9 密度：N/A 沸点：N/A 熔点：N/A	1235045-54-1	C₁₅H₁₆ClNO₃S₂
N-(4-(N-cyclopropyl-N-(thiophen-3-ylmethyl)sulfamoyl)phenyl)butyramide	N-(4-(N-cyclopropyl-N-(thiophen-3-ylmethyl)sulfamoyl)phenyl)butyramide	分子量：378.5 密度：N/A 沸点：N/A 熔点：N/A	1234911-52-4	C₁₈H₂₂N₂O₃S₂
2-Methyl-3-[(3-methyl-2-buten-1-yl)oxy]phenol	2-Methyl-3-[(3-methyl-2-buten-1-yl)oxy]phenol	分子量：192.25 密度：N/A 沸点：N/A 熔点：N/A	1094247-72-9	C₁₂H₁₆O₂
3-methoxy-N-(propan-2-yl)aniline hydrochloride	3-methoxy-N-(propan-2-yl)aniline hydrochloride	分子量：201.69 密度：N/A 沸点：N/A 熔点：N/A	1240527-18-7	C₁₀H₁₆ClNO
2-[(2-Acetamidoethyl)(methyl)amino]acetic acid	2-[(2-Acetamidoethyl)(methyl)amino]acetic acid	分子量：174.20 密度：N/A 沸点：N/A 熔点：N/A	1156981-92-8	C₇H₁₄N₂O₃
5-Pyrimidinesulfonamide, 2-chloro-N-methyl-N-(phenylmethyl)-	5-Pyrimidinesulfonamide, 2-chloro-N-methyl-N-(phenylmethyl)-	分子量：297.76 密度：N/A 沸点：N/A 熔点：N/A	1155080-48-0	C₁₂H₁₂ClN₃O₂S
N-(2-methoxyethyl)-N-(thiophen-3-ylmethyl)benzenesulfonamide	N-(2-methoxyethyl)-N-(thiophen-3-ylmethyl)benzenesulfonamide	分子量：311.4 密度：N/A 沸点：N/A 熔点：N/A	1235359-76-8	C₁₄H₁₇NO₃S₂
2-chloro-N-(2-methylpropyl)pyridine-3-sulfonamide	2-chloro-N-(2-methylpropyl)pyridine-3-sulfonamide	分子量：248.73 密度：N/A 沸点：N/A 熔点：N/A	1155081-09-6	C₉H₁₃ClN₂O₂S
2-chloro-N-cyclopentylpyridine-3-sulfonamide	2-chloro-N-cyclopentylpyridine-3-sulfonamide	分子量：260.74 密度：N/A 沸点：N/A 熔点：N/A	1155913-42-0	C₁₀H₁₃ClN₂O₂S
2-chloro-N-(1-phenylethyl)pyridine-3-sulfonamide	2-chloro-N-(1-phenylethyl)pyridine-3-sulfonamide	分子量：296.77 密度：N/A 沸点：N/A 熔点：N/A	1155914-21-8	C₁₃H₁₃ClN₂O₂S
3-(Dodecyloxy)propanethioamide	3-(Dodecyloxy)propanethioamide	分子量：273.5 密度：N/A 沸点：N/A 熔点：N/A	1240526-94-6	C₁₅H₃₁NOS
2-Chloro-6-(1-piperidinylsulfonyl)quinoline	2-Chloro-6-(1-piperidinylsulfonyl)quinoline	分子量：310.8 密度：N/A 沸点：N/A 熔点：N/A	1155915-46-0	C₁₄H₁₅ClN₂O₂S
2-chloro-N-pentylpyridine-3-sulfonamide	2-chloro-N-pentylpyridine-3-sulfonamide	分子量：262.76 密度：N/A 沸点：N/A 熔点：N/A	1156388-42-9	C₁₀H₁₅ClN₂O₂S
5-(1-(Pyridin-3-ylsulfonyl)azetidin-3-yl)-3-(thiophen-2-yl)-1,2,4-oxadiazole	5-(1-(Pyridin-3-ylsulfonyl)azetidin-3-yl)-3-(thiophen-2-yl)-1,2,4-oxadiazole	分子量：348.4 密度：N/A 沸点：N/A 熔点：N/A	1324662-20-5	C₁₄H₁₂N₄O₃S₂
(4-(1H-pyrrol-1-yl)phenyl)(3-(3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)methanone	(4-(1H-pyrrol-1-yl)phenyl)(3-(3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)methanone	分子量：376.4 密度：N/A 沸点：N/A 熔点：N/A	1323658-55-4	C₂₀H₁₆N₄O₂S
1-Phenyl-4-(3-(3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)butane-1,4-dione	1-Phenyl-4-(3-(3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)butane-1,4-dione	分子量：367.4 密度：N/A 沸点：N/A 熔点：N/A	1323706-67-7	C₁₉H₁₇N₃O₃S
2-((2,2-Dimethyl-2,3-dihydrobenzofuran-7-yl)oxy)-1-(3-(3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)ethanone	2-((2,2-Dimethyl-2,3-dihydrobenzofuran-7-yl)oxy)-1-(3-(3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)ethanone	分子量：411.5 密度：N/A 沸点：N/A 熔点：N/A	1327574-88-8	C₂₁H₂₁N₃O₄S
(3-(Dimethylamino)phenyl)(3-(3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)methanone	(3-(Dimethylamino)phenyl)(3-(3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)methanone	分子量：354.4 密度：N/A 沸点：N/A 熔点：N/A	1327231-75-3	C₁₈H₁₈N₄O₂S
2-(3-Chloro-4-fluorophenyl)oxirane	2-(3-Chloro-4-fluorophenyl)oxirane	分子量：172.58 密度：N/A 沸点：N/A 熔点：N/A	1020994-89-1	C₈H₆ClFO
2-(1H-benzo[d]imidazol-1-yl)-1-(3-(3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)ethanone	2-(1H-benzo[d]imidazol-1-yl)-1-(3-(3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)ethanone	分子量：365.4 密度：N/A 沸点：N/A 熔点：N/A	1327530-00-6	C₁₈H₁₅N₅O₂S
N-(3,5-Dimethylphenyl)-2-hydrazinopyridine-3-sulfonamide	N-(3,5-Dimethylphenyl)-2-hydrazinopyridine-3-sulfonamide	分子量：292.36 密度：N/A 沸点：N/A 熔点：N/A	1155080-19-5	C₁₃H₁₆N₄O₂S
N-(3,5-difluorophenyl)-2-hydrazinylpyridine-3-sulfonamide	N-(3,5-difluorophenyl)-2-hydrazinylpyridine-3-sulfonamide	分子量：300.29 密度：N/A 沸点：N/A 熔点：N/A	1155081-22-3	C₁₁H₁₀F₂N₄O₂S
(3-(3-(Thiophen-2-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)(2-(trifluoromethyl)phenyl)methanone	(3-(3-(Thiophen-2-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)(2-(trifluoromethyl)phenyl)methanone	分子量：379.4 密度：N/A 沸点：N/A 熔点：N/A	1324679-76-6	C₁₇H₁₂F₃N₃O₂S
2-(Benzylthio)-1-(3-(3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)ethanone	2-(Benzylthio)-1-(3-(3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)ethanone	分子量：371.5 密度：N/A 沸点：N/A 熔点：N/A	1324507-08-5	C₁₈H₁₇N₃O₂S₂
(E)-2-phenyl-N-(3-pyrazol-1-ylpropyl)ethenesulfonamide	(E)-2-phenyl-N-(3-pyrazol-1-ylpropyl)ethenesulfonamide	分子量：291.37 密度：N/A 沸点：N/A 熔点：N/A	1198057-32-7	C₁₄H₁₇N₃O₂S
3-(2-oxo-2-(3-(3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)ethyl)benzo[d]oxazol-2(3H)-one	3-(2-oxo-2-(3-(3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)ethyl)benzo[d]oxazol-2(3H)-one	分子量：382.4 密度：N/A 沸点：N/A 熔点：N/A	1331268-23-5	C₁₈H₁₄N₄O₄S
2-(3,5-Dimethylisoxazol-4-yl)-1-(3-(3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)ethanone	2-(3,5-Dimethylisoxazol-4-yl)-1-(3-(3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)ethanone	分子量：344.4 密度：N/A 沸点：N/A 熔点：N/A	1327632-01-8	C₁₆H₁₆N₄O₃S
N-(3-chloro-4-methylphenyl)-2-(3-(3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)acetamide	N-(3-chloro-4-methylphenyl)-2-(3-(3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)acetamide	分子量：388.9 密度：N/A 沸点：N/A 熔点：N/A	1327316-80-2	C₁₈H₁₇ClN₄O₂S
(3S)-3-{[(tert-butoxy)carbonyl]amino}-3-(2,3-dimethylphenyl)propanoic acid	(3S)-3-{[(tert-butoxy)carbonyl]amino}-3-(2,3-dimethylphenyl)propanoic acid	分子量：293.36 密度：N/A 沸点：N/A 熔点：N/A	1366315-62-9	C₁₆H₂₃NO₄
4-[[2-(Aminosulfonyl)ethyl]amino]-N-cyclopropylbenzenesulfonamide	4-[[2-(Aminosulfonyl)ethyl]amino]-N-cyclopropylbenzenesulfonamide	分子量：319.4 密度：N/A 沸点：N/A 熔点：N/A	1156914-57-6	C₁₁H₁₇N₃O₄S₂
2-methoxy-N-(thiophen-3-ylmethyl)-N-(2,2,2-trifluoroethyl)acetamide	2-methoxy-N-(thiophen-3-ylmethyl)-N-(2,2,2-trifluoroethyl)acetamide	分子量：267.27 密度：N/A 沸点：N/A 熔点：N/A	1234985-84-2	C₁₀H₁₂F₃NO₂S
N-(thiophen-3-ylmethyl)-N-(2,2,2-trifluoroethyl)furan-2-carboxamide	N-(thiophen-3-ylmethyl)-N-(2,2,2-trifluoroethyl)furan-2-carboxamide	分子量：289.28 密度：N/A 沸点：N/A 熔点：N/A	1235121-42-2	C₁₂H₁₀F₃NO₂S
methyl N-[4-[2-amino-4-(2-methoxyethoxy)pyrido[3,2-d]pyrimidin-6-yl]phenyl]carbamate	methyl N-[4-[2-amino-4-(2-methoxyethoxy)pyrido[3,2-d]pyrimidin-6-yl]phenyl]carbamate	分子量：369.4 密度：N/A 沸点：N/A 熔点：N/A	1036385-82-6	C₁₈H₁₉N₅O₄
2-(methylthio)-N-(thiophen-3-ylmethyl)-N-(2,2,2-trifluoroethyl)benzamide	2-(methylthio)-N-(thiophen-3-ylmethyl)-N-(2,2,2-trifluoroethyl)benzamide	分子量：345.4 密度：N/A 沸点：N/A 熔点：N/A	1234991-47-9	C₁₅H₁₄F₃NOS₂
Ethyl 3-amino-3-(2,6-difluorophenyl)propanoate	Ethyl 3-amino-3-(2,6-difluorophenyl)propanoate	分子量：229.22 密度：N/A 沸点：N/A 熔点：N/A	773866-48-1	C₁₁H₁₃F₂NO₂
Methyl 4-((thiophen-3-ylmethyl)(2,2,2-trifluoroethyl)carbamoyl)benzoate	Methyl 4-((thiophen-3-ylmethyl)(2,2,2-trifluoroethyl)carbamoyl)benzoate	分子量：357.3 密度：N/A 沸点：N/A 熔点：N/A	1235236-45-9	C₁₆H₁₄F₃NO₃S
N-(thiophen-3-ylmethyl)-N-(2,2,2-trifluoroethyl)benzo[c][1,2,5]thiadiazole-5-carboxamide	N-(thiophen-3-ylmethyl)-N-(2,2,2-trifluoroethyl)benzo[c][1,2,5]thiadiazole-5-carboxamide	分子量：357.4 密度：N/A 沸点：N/A 熔点：N/A	1235098-08-4	C₁₄H₁₀F₃N₃OS₂
4-isopropoxy-N-(thiophen-3-ylmethyl)-N-(2,2,2-trifluoroethyl)benzamide	4-isopropoxy-N-(thiophen-3-ylmethyl)-N-(2,2,2-trifluoroethyl)benzamide	分子量：357.4 密度：N/A 沸点：N/A 熔点：N/A	1234974-21-0	C₁₇H₁₈F₃NO₂S
n-[4-(2-Amino-4-isopropoxy-pyrido[3,2-d]pyrimidin-6-yl)-phenyl]-isobutyramide	n-[4-(2-Amino-4-isopropoxy-pyrido[3,2-d]pyrimidin-6-yl)-phenyl]-isobutyramide	分子量：365.4 密度：N/A 沸点：N/A 熔点：N/A	1036385-92-8	C₂₀H₂₃N₅O₂
7-methoxy-N-(thiophen-3-ylmethyl)-N-(2,2,2-trifluoroethyl)benzofuran-2-carboxamide	7-methoxy-N-(thiophen-3-ylmethyl)-N-(2,2,2-trifluoroethyl)benzofuran-2-carboxamide	分子量：369.4 密度：N/A 沸点：N/A 熔点：N/A	1234918-81-0	C₁₇H₁₄F₃NO₃S
2,2-Bis(3-methylthiophen-2-yl)tetrahydrofuran	2,2-Bis(3-methylthiophen-2-yl)tetrahydrofuran	分子量：264.4 密度：N/A 沸点：N/A 熔点：N/A	1253297-73-2	C₁₄H₁₆OS₂