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
4-[4-(azidomethyl)-1-methyl-1H-pyrazol-3-yl]benzonitrile	4-[4-(azidomethyl)-1-methyl-1H-pyrazol-3-yl]benzonitrile	分子量：238.25 密度：N/A 沸点：N/A 熔点：N/A	1461704-75-5	C₁₂H₁₀N₆
4-Bromo-5-methyl-1-(trimethylsilyl)hex-1-yn-3-one	4-Bromo-5-methyl-1-(trimethylsilyl)hex-1-yn-3-one	分子量：261.23 密度：N/A 沸点：N/A 熔点：N/A	1461715-58-1	C₁₀H₁₇BrOSi
methyl 1-(3-fluorophenyl)-5-propyl-1H-pyrazole-4-carboxylate	methyl 1-(3-fluorophenyl)-5-propyl-1H-pyrazole-4-carboxylate	分子量：262.28 密度：N/A 沸点：N/A 熔点：N/A	1461706-70-6	C₁₄H₁₅FN₂O₂
1-Cyclopentanecarbonylpiperidine-3-sulfonyl chloride	1-Cyclopentanecarbonylpiperidine-3-sulfonyl chloride	分子量：279.78 密度：N/A 沸点：N/A 熔点：N/A	1461705-97-4	C₁₁H₁₈ClNO₃S
4-Bromo-2-(3,4-dichlorophenyl)thiazole	4-Bromo-2-(3,4-dichlorophenyl)thiazole	分子量：309.01 密度：N/A 沸点：N/A 熔点：N/A	1526896-04-7	C₉H₄BrCl₂NS
5-Bromo-N-isopropylpyridine-2-sulfonamide	5-Bromo-N-isopropylpyridine-2-sulfonamide	分子量：279.16 密度：N/A 沸点：N/A 熔点：N/A	1443764-80-4	C₈H₁₁BrN₂O₂S
(S)-1-(pyridin-3-yl)-N-(pyrrolidin-3-yl)methanesulfonamide hydrochloride	(S)-1-(pyridin-3-yl)-N-(pyrrolidin-3-yl)methanesulfonamide hydrochloride	分子量：277.77 密度：N/A 沸点：N/A 熔点：N/A	1421032-39-4	C₁₀H₁₆ClN₃O₂S
8-Oxa-3-azabicyclo[3.2.1]octane-3-carbonyl chloride	8-Oxa-3-azabicyclo[3.2.1]octane-3-carbonyl chloride	分子量：175.61 密度：N/A 沸点：N/A 熔点：N/A	1540821-88-2	C₇H₁₀ClNO₂
2-amino-3-(1-pentyl-1H-imidazol-4-yl)propanoic acid	2-amino-3-(1-pentyl-1H-imidazol-4-yl)propanoic acid	分子量：225.29 密度：N/A 沸点：N/A 熔点：N/A	2171746-20-4	C₁₁H₁₉N₃O₂
3-Ethylmorpholine-4-carbonyl chloride	3-Ethylmorpholine-4-carbonyl chloride	分子量：177.63 密度：N/A 沸点：N/A 熔点：N/A	1522707-52-3	C₇H₁₂ClNO₂
N-(piperidin-2-ylmethyl)-1-(pyridin-3-yl)methanesulfonamide hydrochloride	N-(piperidin-2-ylmethyl)-1-(pyridin-3-yl)methanesulfonamide hydrochloride	分子量：305.83 密度：N/A 沸点：N/A 熔点：N/A	1420857-68-6	C₁₂H₂₀ClN₃O₂S
2-((tert-Butoxycarbonyl)amino)-3-(2-oxopyrrolidin-3-yl)propanoic acid	2-((tert-Butoxycarbonyl)amino)-3-(2-oxopyrrolidin-3-yl)propanoic acid	分子量：272.30 密度：N/A 沸点：N/A 熔点：N/A	249736-52-5	C₁₂H₂₀N₂O₅
2-chloro-5-[[(S)-[(3R)-pyrrolidin-3-yl]sulfinyl]methyl]pyridine;hydrochloride	2-chloro-5-[[(S)-[(3R)-pyrrolidin-3-yl]sulfinyl]methyl]pyridine;hydrochloride	分子量：281.20 密度：N/A 沸点：N/A 熔点：N/A	1421055-03-9	C₁₀H₁₄Cl₂N₂OS
(R)-1-(pyridin-4-yl)-N-(pyrrolidin-3-yl)methanesulfonamide hydrochloride	(R)-1-(pyridin-4-yl)-N-(pyrrolidin-3-yl)methanesulfonamide hydrochloride	分子量：277.77 密度：N/A 沸点：N/A 熔点：N/A	1421025-49-1	C₁₀H₁₆ClN₃O₂S
(S)-1-(pyridin-4-yl)-N-(pyrrolidin-3-yl)methanesulfonamide hydrochloride	(S)-1-(pyridin-4-yl)-N-(pyrrolidin-3-yl)methanesulfonamide hydrochloride	分子量：277.77 密度：N/A 沸点：N/A 熔点：N/A	1421031-04-0	C₁₀H₁₆ClN₃O₂S
3-Amino-3-(oxan-4-yl)propanamide hydrochloride	3-Amino-3-(oxan-4-yl)propanamide hydrochloride	分子量：208.68 密度：N/A 沸点：N/A 熔点：N/A	1375473-17-8	C₈H₁₇ClN₂O₂
N-(3-chlorophenyl)-2-(7,8-dimethoxy-2-oxo-1,2-dihydro-3H-3-benzazepin-3-yl)acetamide	N-(3-chlorophenyl)-2-(7,8-dimethoxy-2-oxo-1,2-dihydro-3H-3-benzazepin-3-yl)acetamide	分子量：386.8 密度：N/A 沸点：N/A 熔点：N/A	1574399-61-3	C₂₀H₁₉ClN₂O₄
methyl (1-{[(5-hydroxy-4-oxo-2-phenyl-4H-chromen-7-yl)oxy]acetyl}piperidin-4-yl)acetate	methyl (1-{[(5-hydroxy-4-oxo-2-phenyl-4H-chromen-7-yl)oxy]acetyl}piperidin-4-yl)acetate	分子量：451.5 密度：N/A 沸点：N/A 熔点：N/A	1574342-81-6	C₂₅H₂₅NO₇
(S)-5-((pyrrolidin-3-ylsulfonyl)methyl)thiazole hydrochloride	(S)-5-((pyrrolidin-3-ylsulfonyl)methyl)thiazole hydrochloride	分子量：268.8 密度：N/A 沸点：N/A 熔点：N/A	1421025-27-5	C₈H₁₃ClN₂O₂S₂
3-Amino-3-cyclohexylpropanamide hydrochloride	3-Amino-3-cyclohexylpropanamide hydrochloride	分子量：206.71 密度：N/A 沸点：N/A 熔点：N/A	1375473-18-9	C₉H₁₉ClN₂O
Benzenesulfonamide, 4-(1,1-dimethylethyl)-N-[5-(2-methoxyphenoxy)-6-[2-(2-pyrimidinyloxy)ethoxy][2,2a(2)-bipyrimidin]-4-yl]-	Benzenesulfonamide, 4-(1,1-dimethylethyl)-N-[5-(2-methoxyphenoxy)-6-[2-(2-pyrimidinyloxy)ethoxy][2,2a(2)-bipyrimidin]-4-yl]-	分子量：629.7 密度：N/A 沸点：N/A 熔点：N/A	1393813-44-9	C₃₁H₃₁N₇O₆S
tert-butyl N-(1-cyclopropyl-3-methyl-1-oxopentan-2-yl)carbamate	tert-butyl N-(1-cyclopropyl-3-methyl-1-oxopentan-2-yl)carbamate	分子量：255.35 密度：N/A 沸点：N/A 熔点：N/A	1996336-31-2	C₁₄H₂₅NO₃
3-(((Piperidin-2-ylmethyl)sulfonyl)methyl)pyridine hydrochloride	3-(((Piperidin-2-ylmethyl)sulfonyl)methyl)pyridine hydrochloride	分子量：290.81 密度：N/A 沸点：N/A 熔点：N/A	1420871-98-2	C₁₂H₁₉ClN₂O₂S
5-(((Piperidin-2-ylmethyl)sulfonyl)methyl)thiazole hydrochloride	5-(((Piperidin-2-ylmethyl)sulfonyl)methyl)thiazole hydrochloride	分子量：296.8 密度：N/A 沸点：N/A 熔点：N/A	1421004-23-0	C₁₀H₁₇ClN₂O₂S₂
2-(((Pyrrolidin-2-ylmethyl)sulfonyl)methyl)pyridine hydrochloride	2-(((Pyrrolidin-2-ylmethyl)sulfonyl)methyl)pyridine hydrochloride	分子量：276.78 密度：N/A 沸点：N/A 熔点：N/A	1420795-67-0	C₁₁H₁₇ClN₂O₂S
N-(2-(furan-3-yl)-2-hydroxyethyl)-2,3-dihydrobenzo[b][1,4]dioxine-6-sulfonamide	N-(2-(furan-3-yl)-2-hydroxyethyl)-2,3-dihydrobenzo[b][1,4]dioxine-6-sulfonamide	分子量：325.34 密度：N/A 沸点：N/A 熔点：N/A	1396854-32-2	C₁₄H₁₅NO₆S
N1-(benzo[d][1,3]dioxol-5-ylmethyl)-N2-(2-(furan-3-yl)-2-hydroxyethyl)oxalamide	N1-(benzo[d][1,3]dioxol-5-ylmethyl)-N2-(2-(furan-3-yl)-2-hydroxyethyl)oxalamide	分子量：332.31 密度：N/A 沸点：N/A 熔点：N/A	1396767-21-7	C₁₆H₁₆N₂O₆
N-[2-(furan-3-yl)ethyl]adamantane-1-carboxamide	N-[2-(furan-3-yl)ethyl]adamantane-1-carboxamide	分子量：273.37 密度：N/A 沸点：N/A 熔点：N/A	1428356-72-2	C₁₇H₂₃NO₂
5-Chloro-N-[2-(furan-3-YL)ethyl]thiophene-2-sulfonamide	5-Chloro-N-[2-(furan-3-YL)ethyl]thiophene-2-sulfonamide	分子量：291.8 密度：N/A 沸点：N/A 熔点：N/A	1428355-09-2	C₁₀H₁₀ClNO₃S₂
1-(2-(Furan-3-yl)ethyl)-3-(4-methoxyphenyl)urea	1-(2-(Furan-3-yl)ethyl)-3-(4-methoxyphenyl)urea	分子量：260.29 密度：N/A 沸点：N/A 熔点：N/A	1428371-20-3	C₁₄H₁₆N₂O₃
(4-(Pyridin-2-yloxy)piperidin-1-yl)(thiophen-2-yl)methanone	(4-(Pyridin-2-yloxy)piperidin-1-yl)(thiophen-2-yl)methanone	分子量：288.4 密度：N/A 沸点：N/A 熔点：N/A	1428355-70-7	C₁₅H₁₆N₂O₂S
2-((Piperidin-3-ylmethyl)sulfonyl)isonicotinonitrile hydrochloride	2-((Piperidin-3-ylmethyl)sulfonyl)isonicotinonitrile hydrochloride	分子量：301.79 密度：N/A 沸点：N/A 熔点：N/A	1420795-50-1	C₁₂H₁₆ClN₃O₂S
Pyrazin-2-yl(4-((5-(trifluoromethyl)pyridin-2-yl)oxy)piperidin-1-yl)methanone	Pyrazin-2-yl(4-((5-(trifluoromethyl)pyridin-2-yl)oxy)piperidin-1-yl)methanone	分子量：352.31 密度：N/A 沸点：N/A 熔点：N/A	1421531-29-4	C₁₆H₁₅F₃N₄O₂
Oxalomolybdic acid	Oxalomolybdic acid	分子量：233.98 密度：N/A 沸点：N/A 熔点：N/A	53450-33-2	C₂H₂MoO₇
2-((1-(Pyridin-3-ylsulfonyl)piperidin-4-yl)oxy)-5-(trifluoromethyl)pyridine	2-((1-(Pyridin-3-ylsulfonyl)piperidin-4-yl)oxy)-5-(trifluoromethyl)pyridine	分子量：387.4 密度：N/A 沸点：N/A 熔点：N/A	1421457-01-3	C₁₆H₁₆F₃N₃O₃S
Methyl 4-((4-((3-chloropyridin-2-yl)oxy)piperidin-1-yl)sulfonyl)benzoate	Methyl 4-((4-((3-chloropyridin-2-yl)oxy)piperidin-1-yl)sulfonyl)benzoate	分子量：410.9 密度：N/A 沸点：N/A 熔点：N/A	1448131-30-3	C₁₈H₁₉ClN₂O₅S
2-((Piperidin-3-ylmethyl)sulfonyl)pyrimidine hydrochloride	2-((Piperidin-3-ylmethyl)sulfonyl)pyrimidine hydrochloride	分子量：277.77 密度：N/A 沸点：N/A 熔点：N/A	1421003-18-0	C₁₀H₁₆ClN₃O₂S
2-((1-(2-(2-Chlorophenyl)acetyl)piperidin-4-yl)oxy)nicotinonitrile	2-((1-(2-(2-Chlorophenyl)acetyl)piperidin-4-yl)oxy)nicotinonitrile	分子量：355.8 密度：N/A 沸点：N/A 熔点：N/A	1797062-59-9	C₁₉H₁₈ClN₃O₂
2-((piperidin-3-ylmethyl)sulfonyl)-1H-benzo[d]imidazole hydrochloride	2-((piperidin-3-ylmethyl)sulfonyl)-1H-benzo[d]imidazole hydrochloride	分子量：315.82 密度：N/A 沸点：N/A 熔点：N/A	1420852-36-3	C₁₃H₁₈ClN₃O₂S
4-((3-cyanopyridin-2-yl)oxy)-N-(3,4-dichlorophenyl)piperidine-1-carboxamide	4-((3-cyanopyridin-2-yl)oxy)-N-(3,4-dichlorophenyl)piperidine-1-carboxamide	分子量：391.2 密度：N/A 沸点：N/A 熔点：N/A	1797536-10-7	C₁₈H₁₆Cl₂N₄O₂
6-({1-[2-(1H-indol-1-yl)acetyl]piperidin-4-yl}oxy)pyridine-3-carbonitrile	6-({1-[2-(1H-indol-1-yl)acetyl]piperidin-4-yl}oxy)pyridine-3-carbonitrile	分子量：360.4 密度：N/A 沸点：N/A 熔点：N/A	1421493-25-5	C₂₁H₂₀N₄O₂
6-((1-(2,6-Difluorobenzoyl)piperidin-4-yl)oxy)nicotinonitrile	6-((1-(2,6-Difluorobenzoyl)piperidin-4-yl)oxy)nicotinonitrile	分子量：343.3 密度：N/A 沸点：N/A 熔点：N/A	1428355-55-8	C₁₈H₁₅F₂N₃O₂
1-(4-(Pyrimidin-2-yloxy)piperidin-1-yl)butan-1-one	1-(4-(Pyrimidin-2-yloxy)piperidin-1-yl)butan-1-one	分子量：249.31 密度：N/A 沸点：N/A 熔点：N/A	1421529-23-8	C₁₃H₁₉N₃O₂
2-(Benzo[d]oxazol-2-ylthio)-1-(4-(pyrazin-2-yloxy)piperidin-1-yl)ethanone	2-(Benzo[d]oxazol-2-ylthio)-1-(4-(pyrazin-2-yloxy)piperidin-1-yl)ethanone	分子量：370.4 密度：N/A 沸点：N/A 熔点：N/A	1448072-09-0	C₁₈H₁₈N₄O₃S
(2-Chloro-6-fluorophenyl)(4-(pyrazin-2-yloxy)piperidin-1-yl)methanone	(2-Chloro-6-fluorophenyl)(4-(pyrazin-2-yloxy)piperidin-1-yl)methanone	分子量：335.76 密度：N/A 沸点：N/A 熔点：N/A	1421529-45-4	C₁₆H₁₅ClFN₃O₂
2-(4-Chlorophenoxy)-1-(4-(pyrazin-2-yloxy)piperidin-1-yl)ethanone	2-(4-Chlorophenoxy)-1-(4-(pyrazin-2-yloxy)piperidin-1-yl)ethanone	分子量：347.8 密度：N/A 沸点：N/A 熔点：N/A	1421509-42-3	C₁₇H₁₈ClN₃O₃
3,3-Diphenyl-1-(4-(pyrazin-2-yloxy)piperidin-1-yl)propan-1-one	3,3-Diphenyl-1-(4-(pyrazin-2-yloxy)piperidin-1-yl)propan-1-one	分子量：387.5 密度：N/A 沸点：N/A 熔点：N/A	1421498-73-8	C₂₄H₂₅N₃O₂
(2-(Ethylthio)phenyl)(4-(pyrazin-2-yloxy)piperidin-1-yl)methanone	(2-(Ethylthio)phenyl)(4-(pyrazin-2-yloxy)piperidin-1-yl)methanone	分子量：343.4 密度：N/A 沸点：N/A 熔点：N/A	1448137-24-3	C₁₈H₂₁N₃O₂S
Benzo[d]thiazol-2-yl(4-(pyrazin-2-yloxy)piperidin-1-yl)methanone	Benzo[d]thiazol-2-yl(4-(pyrazin-2-yloxy)piperidin-1-yl)methanone	分子量：340.4 密度：N/A 沸点：N/A 熔点：N/A	1421478-27-4	C₁₇H₁₆N₄O₂S
Benzo[c][1,2,5]thiadiazol-5-yl(4-(pyrazin-2-yloxy)piperidin-1-yl)methanone	Benzo[c][1,2,5]thiadiazol-5-yl(4-(pyrazin-2-yloxy)piperidin-1-yl)methanone	分子量：341.4 密度：N/A 沸点：N/A 熔点：N/A	1421482-38-3	C₁₆H₁₅N₅O₂S