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-(5-Amino-2-fluorobenzoyl)pyridine	2-(5-Amino-2-fluorobenzoyl)pyridine	分子量：216.21 密度：N/A 沸点：N/A 熔点：N/A	936126-16-8	C₁₂H₉FN₂O
N-Methyl-3-nitro-N-phenylbenzenemethanamine	N-Methyl-3-nitro-N-phenylbenzenemethanamine	分子量：242.27 密度：N/A 沸点：N/A 熔点：N/A	1809014-99-0	C₁₄H₁₄N₂O₂
CID 119094735	CID 119094735	分子量：185.64 密度：N/A 沸点：N/A 熔点：N/A	936354-32-4	C₆H₄ClN₃S
Benzothiazole, 6-bromo-5-methoxy-	Benzothiazole, 6-bromo-5-methoxy-	分子量：244.11 密度：N/A 沸点：N/A 熔点：N/A	939803-90-4	C₈H₆BrNOS
Methyl (5-(1-amino-3-cyclopropylpropyl)-2-fluorophenyl)carbamate	Methyl (5-(1-amino-3-cyclopropylpropyl)-2-fluorophenyl)carbamate	分子量：266.31 密度：N/A 沸点：N/A 熔点：N/A	1809021-01-9	C₁₄H₁₉FN₂O₂
1-(4-Chloro-3-(fluoromethyl)phenyl)hydrazine	1-(4-Chloro-3-(fluoromethyl)phenyl)hydrazine	分子量：174.60 密度：N/A 沸点：N/A 熔点：N/A	1803759-45-6	C₇H₈ClFN₂
3-Methoxy-2,6-pyridinedimethanol	3-Methoxy-2,6-pyridinedimethanol	分子量：169.18 密度：N/A 沸点：N/A 熔点：N/A	941688-80-8	C₈H₁₁NO₃
(6-fluoro-1H-indol-5-yl)boronic acid	(6-fluoro-1H-indol-5-yl)boronic acid	分子量：178.96 密度：N/A 沸点：N/A 熔点：N/A	1361325-83-8	C₈H₇BFNO₂
CID 119094798	CID 119094798	分子量：233.49 密度：N/A 沸点：N/A 熔点：N/A	943974-32-1	C₇H₆BrClN₂
CID 119094818	CID 119094818	分子量：193.20 密度：N/A 沸点：N/A 熔点：N/A	945-33-5	C₁₀H₁₁NO₃
3-Fluoro-4-isocyanatopyridine	3-Fluoro-4-isocyanatopyridine	分子量：138.10 密度：N/A 沸点：N/A 熔点：N/A	945392-09-6	C₆H₃FN₂O
Ethanone, 2-bromo-1-[4-methoxy-3-(1-methylethoxy)phenyl]-	Ethanone, 2-bromo-1-[4-methoxy-3-(1-methylethoxy)phenyl]-	分子量：287.15 密度：N/A 沸点：N/A 熔点：N/A	945612-58-8	C₁₂H₁₅BrO₃
6-Formyl-2-methoxy-3-methylbenzoic acid	6-Formyl-2-methoxy-3-methylbenzoic acid	分子量：194.18 密度：N/A 沸点：N/A 熔点：N/A	945981-88-4	C₁₀H₁₀O₄
Benzothiazole, 5-chloro-2-[(difluoromethyl)thio]-	Benzothiazole, 5-chloro-2-[(difluoromethyl)thio]-	分子量：251.7 密度：N/A 沸点：N/A 熔点：N/A	946-14-5	C₈H₄ClF₂NS₂
2-Isothiocyanato-1-methyl-1H-imidazole	2-Isothiocyanato-1-methyl-1H-imidazole	分子量：139.18 密度：N/A 沸点：N/A 熔点：N/A	947312-04-1	C₅H₅N₃S
1-Difluoromethoxy-2,4-dimethyl-5-nitrobenzene	1-Difluoromethoxy-2,4-dimethyl-5-nitrobenzene	分子量：217.17 密度：N/A 沸点：N/A 熔点：N/A	1807040-43-2	C₉H₉F₂NO₃
2,2,2-Trifluoro-1-(6-fluoropyridin-3-yl)ethan-1-ol	2,2,2-Trifluoro-1-(6-fluoropyridin-3-yl)ethan-1-ol	分子量：195.11 密度：N/A 沸点：N/A 熔点：N/A	950687-46-4	C₇H₅F₄NO
6-Methyl-1,7-dihydropyrrolo[2,3-d]pyrimidine-4-thione	6-Methyl-1,7-dihydropyrrolo[2,3-d]pyrimidine-4-thione	分子量：165.22 密度：N/A 沸点：N/A 熔点：N/A	98279-99-3	C₇H₇N₃S
3-Chloropyrazin-2-ylboronic acid	3-Chloropyrazin-2-ylboronic acid	分子量：158.35 密度：N/A 沸点：N/A 熔点：N/A	1375108-95-4	C₄H₄BClN₂O₂
3-Chloroquinoxalin-2-ylboronic acid	3-Chloroquinoxalin-2-ylboronic acid	分子量：208.41 密度：N/A 沸点：N/A 熔点：N/A	1375108-96-5	C₈H₆BClN₂O₂
3-cyclopropyl-N-methoxy-N-methyl-5-nitroBenzamide	3-cyclopropyl-N-methoxy-N-methyl-5-nitroBenzamide	分子量：250.25 密度：N/A 沸点：N/A 熔点：N/A	1809016-65-6	C₁₂H₁₄N₂O₄
2-(2,3,5-Trichlorophenyl)quinoline	2-(2,3,5-Trichlorophenyl)quinoline	分子量：308.6 密度：N/A 沸点：N/A 熔点：N/A	1361547-19-4	C₁₅H₈Cl₃N
2-(Difluoromethyl)-3,4-diiodopyridine-5-methanol	2-(Difluoromethyl)-3,4-diiodopyridine-5-methanol	分子量：410.93 密度：N/A 沸点：N/A 熔点：N/A	1805159-68-5	C₇H₅F₂I₂NO
N5,N5-dipropyl-3,5-Pyridazinediamine	N5,N5-dipropyl-3,5-Pyridazinediamine	分子量：194.28 密度：N/A 沸点：N/A 熔点：N/A	1619989-17-1	C₁₀H₁₈N₄
5-Fluoro-2-iodopyridin-3-amine	5-Fluoro-2-iodopyridin-3-amine	分子量：238.00 密度：N/A 沸点：N/A 熔点：N/A	1805123-36-7	C₅H₄FIN₂
8-(2-methoxyethyl)-4-(piperidin-1-yl)pyrido[2,3-d]pyrimidin-7(8H)-one	8-(2-methoxyethyl)-4-(piperidin-1-yl)pyrido[2,3-d]pyrimidin-7(8H)-one	分子量：288.34 密度：N/A 沸点：N/A 熔点：N/A	2034375-83-0	C₁₅H₂₀N₄O₂
8-(2-hydroxyethyl)-4-(pyrrolidin-1-yl)pyrido[2,3-d]pyrimidin-7(8H)-one	8-(2-hydroxyethyl)-4-(pyrrolidin-1-yl)pyrido[2,3-d]pyrimidin-7(8H)-one	分子量：260.29 密度：N/A 沸点：N/A 熔点：N/A	2034572-81-9	C₁₃H₁₆N₄O₂
N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)cyclopropanecarboxamide	N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)cyclopropanecarboxamide	分子量：293.4 密度：N/A 沸点：N/A 熔点：N/A	2034477-76-2	C₁₄H₁₅NO₂S₂
N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)thiophene-2-carboxamide	N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)thiophene-2-carboxamide	分子量：335.5 密度：N/A 沸点：N/A 熔点：N/A	2034584-46-6	C₁₅H₁₃NO₂S₃
N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)-3-methylbenzamide	N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)-3-methylbenzamide	分子量：343.5 密度：N/A 沸点：N/A 熔点：N/A	2034501-95-4	C₁₈H₁₇NO₂S₂
3-fluoro-N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)benzamide	3-fluoro-N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)benzamide	分子量：347.4 密度：N/A 沸点：N/A 熔点：N/A	2034501-98-7	C₁₇H₁₄FNO₂S₂
3-chloro-N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)benzamide	3-chloro-N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)benzamide	分子量：363.9 密度：N/A 沸点：N/A 熔点：N/A	2034573-60-7	C₁₇H₁₄ClNO₂S₂
N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)-2-phenylbutanamide	N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)-2-phenylbutanamide	分子量：371.5 密度：N/A 沸点：N/A 熔点：N/A	2034584-50-2	C₂₀H₂₁NO₂S₂
3,3-Difluoro-2-methylpentan-2-amine	3,3-Difluoro-2-methylpentan-2-amine	分子量：137.17 密度：N/A 沸点：N/A 熔点：N/A	1897628-10-2	C₆H₁₃F₂N
N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)-2-phenoxypropanamide	N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)-2-phenoxypropanamide	分子量：373.5 密度：N/A 沸点：N/A 熔点：N/A	2034477-80-8	C₁₉H₁₉NO₃S₂
N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)-2-(methylthio)benzamide	N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)-2-(methylthio)benzamide	分子量：375.5 密度：N/A 沸点：N/A 熔点：N/A	2034584-58-0	C₁₈H₁₇NO₂S₃
2-chloro-4-fluoro-N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)benzamide	2-chloro-4-fluoro-N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)benzamide	分子量：381.9 密度：N/A 沸点：N/A 熔点：N/A	2034477-85-3	C₁₇H₁₃ClFNO₂S₂
5-chloro-N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)-2-methoxybenzamide	5-chloro-N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)-2-methoxybenzamide	分子量：393.9 密度：N/A 沸点：N/A 熔点：N/A	2034589-57-4	C₁₈H₁₆ClNO₃S₂
N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)-2-(trifluoromethyl)benzamide	N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)-2-(trifluoromethyl)benzamide	分子量：397.4 密度：N/A 沸点：N/A 熔点：N/A	2034573-78-7	C₁₈H₁₄F₃NO₂S₂
2-(Chloromethyl)-3-(difluoromethyl)-4-hydroxypyridine	2-(Chloromethyl)-3-(difluoromethyl)-4-hydroxypyridine	分子量：193.58 密度：N/A 沸点：N/A 熔点：N/A	1806774-71-9	C₇H₆ClF₂NO
N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)-2-phenoxybenzamide	N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)-2-phenoxybenzamide	分子量：421.5 密度：N/A 沸点：N/A 熔点：N/A	2034502-04-8	C₂₃H₁₉NO₃S₂
N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)-8-methoxy-2-oxo-2H-chromene-3-carboxamide	N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)-8-methoxy-2-oxo-2H-chromene-3-carboxamide	分子量：427.5 密度：N/A 沸点：N/A 熔点：N/A	2034573-86-7	C₂₁H₁₇NO₅S₂
5-bromo-2-chloro-N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)benzamide	5-bromo-2-chloro-N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)benzamide	分子量：442.8 密度：N/A 沸点：N/A 熔点：N/A	2034584-87-5	C₁₇H₁₃BrClNO₂S₂
1-(4-fluorophenyl)-N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)cyclopropanecarboxamide	1-(4-fluorophenyl)-N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)cyclopropanecarboxamide	分子量：387.5 密度：N/A 沸点：N/A 熔点：N/A	2034589-79-0	C₂₀H₁₈FNO₂S₂
N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)-1-(m-tolyl)methanesulfonamide	N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)-1-(m-tolyl)methanesulfonamide	分子量：393.5 密度：N/A 沸点：N/A 熔点：N/A	2034502-14-0	C₁₈H₁₉NO₃S₃
2-(Bromomethyl)-6-(difluoromethyl)-5-hydroxypyridine-3-acetonitrile	2-(Bromomethyl)-6-(difluoromethyl)-5-hydroxypyridine-3-acetonitrile	分子量：277.07 密度：N/A 沸点：N/A 熔点：N/A	1805258-65-4	C₉H₇BrF₂N₂O
4-fluoro-N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)-3-methylbenzenesulfonamide	4-fluoro-N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)-3-methylbenzenesulfonamide	分子量：397.5 密度：N/A 沸点：N/A 熔点：N/A	2034585-16-3	C₁₇H₁₆FNO₃S₃
2-(Difluoromethyl)-3-iodopyridine-6-carboxylic acid	2-(Difluoromethyl)-3-iodopyridine-6-carboxylic acid	分子量：299.01 密度：N/A 沸点：N/A 熔点：N/A	1806782-20-6	C₇H₄F₂INO₂
5-Ethyl-4-methyl-2-pyridinecarbonitrile	5-Ethyl-4-methyl-2-pyridinecarbonitrile	分子量：146.19 密度：N/A 沸点：N/A 熔点：N/A	860226-08-0	C₉H₁₀N₂
2-chloro-N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)benzenesulfonamide	2-chloro-N-(2-hydroxy-2,2-di(thiophen-2-yl)ethyl)benzenesulfonamide	分子量：399.9 密度：N/A 沸点：N/A 熔点：N/A	2034478-03-8	C₁₆H₁₄ClNO₃S₃