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-Methoxy-6-(methylthio)pyrimidine-5-carboxylic acid	4-Methoxy-6-(methylthio)pyrimidine-5-carboxylic acid	分子量：200.22 密度：N/A 沸点：N/A 熔点：N/A	1551614-19-7	C₇H₈N₂O₃S
2-(N-methylacetamido)-1,3-thiazole-4-carboxylic acid	2-(N-methylacetamido)-1,3-thiazole-4-carboxylic acid	分子量：200.22 密度：N/A 沸点：N/A 熔点：N/A	1547019-82-8	C₇H₈N₂O₃S
N-(2-(2-(2-fluorophenyl)thiazol-4-yl)phenyl)furan-2-carboxamide	N-(2-(2-(2-fluorophenyl)thiazol-4-yl)phenyl)furan-2-carboxamide	分子量：364.4 密度：N/A 沸点：N/A 熔点：N/A	1706279-07-3	C₂₀H₁₃FN₂O₂S
N-(2-(2-(2-fluorophenyl)thiazol-4-yl)phenyl)-6-hydroxynicotinamide	N-(2-(2-(2-fluorophenyl)thiazol-4-yl)phenyl)-6-hydroxynicotinamide	分子量：391.4 密度：N/A 沸点：N/A 熔点：N/A	1706299-12-8	C₂₁H₁₄FN₃O₂S
2-(benzo[d][1,3]dioxol-5-yloxy)-N-(2-(2-(2-fluorophenyl)thiazol-4-yl)phenyl)acetamide	2-(benzo[d][1,3]dioxol-5-yloxy)-N-(2-(2-(2-fluorophenyl)thiazol-4-yl)phenyl)acetamide	分子量：448.5 密度：N/A 沸点：N/A 熔点：N/A	1705929-98-1	C₂₄H₁₇FN₂O₄S
(E)-N-(2-(2-(2-fluorophenyl)thiazol-4-yl)phenyl)-3-(pyridin-3-yl)acrylamide	(E)-N-(2-(2-(2-fluorophenyl)thiazol-4-yl)phenyl)-3-(pyridin-3-yl)acrylamide	分子量：401.5 密度：N/A 沸点：N/A 熔点：N/A	1706496-02-7	C₂₃H₁₆FN₃OS
1-(azetidin-3-yl)-1H-pyrazole-4-carboxylic acid	1-(azetidin-3-yl)-1H-pyrazole-4-carboxylic acid	分子量：167.17 密度：N/A 沸点：N/A 熔点：N/A	1780549-22-5	C₇H₉N₃O₂
4-Chloro-2-methoxybenzyl methanesulfonate	4-Chloro-2-methoxybenzyl methanesulfonate	分子量：250.70 密度：N/A 沸点：N/A 熔点：N/A	1539311-13-1	C₉H₁₁ClO₄S
1-(5-Boronopyrimidin-2-yl)piperidine-4-carboxylic acid	1-(5-Boronopyrimidin-2-yl)piperidine-4-carboxylic acid	分子量：251.05 密度：N/A 沸点：N/A 熔点：N/A	1515925-20-8	C₁₀H₁₄BN₃O₄
[2-(4-Ethoxycarbonyl-4-methylpiperidin-1-yl)pyrimidin-5-yl]boronic acid	[2-(4-Ethoxycarbonyl-4-methylpiperidin-1-yl)pyrimidin-5-yl]boronic acid	分子量：293.13 密度：N/A 沸点：N/A 熔点：N/A	1515922-46-9	C₁₃H₂₀BN₃O₄
(2-(4-Hydroxy-4-(methoxycarbonyl)piperidin-1-yl)pyrimidin-5-yl)boronic acid	(2-(4-Hydroxy-4-(methoxycarbonyl)piperidin-1-yl)pyrimidin-5-yl)boronic acid	分子量：281.08 密度：N/A 沸点：N/A 熔点：N/A	1536396-19-6	C₁₁H₁₆BN₃O₅
(1-Methyl-1H-pyrazolo[3,4-b]pyridin-5-yl)boronic acid	(1-Methyl-1H-pyrazolo[3,4-b]pyridin-5-yl)boronic acid	分子量：176.97 密度：N/A 沸点：N/A 熔点：N/A	1598409-66-5	C₇H₈BN₃O₂
Methyl 2-methylmorpholine-2-carboxylate hydrochloride	Methyl 2-methylmorpholine-2-carboxylate hydrochloride	分子量：195.64 密度：N/A 沸点：N/A 熔点：N/A	1205750-77-1	C₇H₁₄ClNO₃
Ethyl 5-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)cyclohex-3-ene-1-carboxylate	Ethyl 5-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)cyclohex-3-ene-1-carboxylate	分子量：294.2 密度：N/A 沸点：N/A 熔点：N/A	1536393-68-6	C₁₆H₂₇BO₄
Ethyl 5-benzyl-2-oxa-5-azaspiro[3.4]octane-7-carboxylate	Ethyl 5-benzyl-2-oxa-5-azaspiro[3.4]octane-7-carboxylate	分子量：275.34 密度：N/A 沸点：N/A 熔点：N/A	1538627-45-0	C₁₆H₂₁NO₃
2-[3-(1-Methyl-1H-pyrazol-4-yl)-phenyl]-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-pyrimidine	2-[3-(1-Methyl-1H-pyrazol-4-yl)-phenyl]-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-pyrimidine	分子量：362.2 密度：N/A 沸点：N/A 熔点：N/A	1534350-58-7	C₂₀H₂₃BN₄O₂
(6-Chloropyridazin-3-yl)methanamine hydrobromide	(6-Chloropyridazin-3-yl)methanamine hydrobromide	分子量：224.48 密度：N/A 沸点：N/A 熔点：N/A	1208249-66-4	C₅H₇BrClN₃
6-Bromo-2-((4-fluorophenyl)ethynyl)pyridin-3-yl acetate	6-Bromo-2-((4-fluorophenyl)ethynyl)pyridin-3-yl acetate	分子量：334.14 密度：N/A 沸点：N/A 熔点：N/A	1215106-73-2	C₁₅H₉BrFNO₂
5-Hexyl-2-thienylmagnesium bromide	5-Hexyl-2-thienylmagnesium bromide	分子量：271.50 密度：N/A 沸点：N/A 熔点：N/A	655246-81-4	C₁₀H₁₅BrMgS
2-(4-Cyclohexyl-phenoxymethyl)-2-methyl-oxirane	2-(4-Cyclohexyl-phenoxymethyl)-2-methyl-oxirane	分子量：246.34 密度：N/A 沸点：N/A 熔点：N/A	1058159-91-3	C₁₆H₂₂O₂
2-(3,6-dihydro-2H-pyran-4-yl)-2-methyl-propionaldehyde	2-(3,6-dihydro-2H-pyran-4-yl)-2-methyl-propionaldehyde	分子量：154.21 密度：N/A 沸点：N/A 熔点：N/A	1219089-13-0	C₉H₁₄O₂
2-(2,5-Difluoro-4-methylphenyl)propan-1-amine	2-(2,5-Difluoro-4-methylphenyl)propan-1-amine	分子量：185.21 密度：N/A 沸点：N/A 熔点：N/A	1514162-08-3	C₁₀H₁₃F₂N
N-(2-oxo-2-(3-(4-phenyl-1H-1,2,3-triazol-1-yl)azetidin-1-yl)ethyl)acetamide	N-(2-oxo-2-(3-(4-phenyl-1H-1,2,3-triazol-1-yl)azetidin-1-yl)ethyl)acetamide	分子量：299.33 密度：N/A 沸点：N/A 熔点：N/A	2034524-55-3	C₁₅H₁₇N₅O₂
1-(3-(4-phenyl-1H-1,2,3-triazol-1-yl)azetidin-1-yl)-2-(pyridin-3-yl)ethanone	1-(3-(4-phenyl-1H-1,2,3-triazol-1-yl)azetidin-1-yl)-2-(pyridin-3-yl)ethanone	分子量：319.4 密度：N/A 沸点：N/A 熔点：N/A	2034266-29-8	C₁₈H₁₇N₅O
1-(3-(4-phenyl-1H-1,2,3-triazol-1-yl)azetidin-1-yl)-2-(thiophen-3-yl)ethanone	1-(3-(4-phenyl-1H-1,2,3-triazol-1-yl)azetidin-1-yl)-2-(thiophen-3-yl)ethanone	分子量：324.4 密度：N/A 沸点：N/A 熔点：N/A	2034426-16-7	C₁₇H₁₆N₄OS
4-phenyl-1-(1-(thiophen-2-ylsulfonyl)azetidin-3-yl)-1H-1,2,3-triazole	4-phenyl-1-(1-(thiophen-2-ylsulfonyl)azetidin-3-yl)-1H-1,2,3-triazole	分子量：346.4 密度：N/A 沸点：N/A 熔点：N/A	2034284-04-1	C₁₅H₁₄N₄O₂S₂
5-Bromo-1,4-dimethyl-1H-pyrazole-3-carbaldehyde	5-Bromo-1,4-dimethyl-1H-pyrazole-3-carbaldehyde	分子量：203.04 密度：N/A 沸点：N/A 熔点：N/A	1268522-54-8	C₆H₇BrN₂O
2-(1H-benzo[d][1,2,3]triazol-1-yl)-1-(3-(4-phenyl-1H-1,2,3-triazol-1-yl)pyrrolidin-1-yl)ethanone	2-(1H-benzo[d][1,2,3]triazol-1-yl)-1-(3-(4-phenyl-1H-1,2,3-triazol-1-yl)pyrrolidin-1-yl)ethanone	分子量：373.4 密度：N/A 沸点：N/A 熔点：N/A	2034445-38-8	C₂₀H₁₉N₇O
n-[(1,3-Thiazol-4-yl)methyl]hydroxylamine	n-[(1,3-Thiazol-4-yl)methyl]hydroxylamine	分子量：130.17 密度：N/A 沸点：N/A 熔点：N/A	1507653-51-1	C₄H₆N₂OS
5-Cyclopropyl-1,2,4-triazin-3-amine	5-Cyclopropyl-1,2,4-triazin-3-amine	分子量：136.15 密度：N/A 沸点：N/A 熔点：N/A	1494277-98-3	C₆H₈N₄
5-Chloro-2-ethoxy-3-fluorobenzaldehyde	5-Chloro-2-ethoxy-3-fluorobenzaldehyde	分子量：202.61 密度：N/A 沸点：N/A 熔点：N/A	1478877-27-8	C₉H₈ClFO₂
(S)-2-Isopropylpyrrolidin-3-one	(S)-2-Isopropylpyrrolidin-3-one	分子量：127.18 密度：N/A 沸点：N/A 熔点：N/A	1368364-67-3	C₇H₁₃NO
(3-(3-methoxyphenyl)-1-methyl-1H-pyrazol-5-yl)(3-(4-phenyl-1H-1,2,3-triazol-1-yl)pyrrolidin-1-yl)methanone	(3-(3-methoxyphenyl)-1-methyl-1H-pyrazol-5-yl)(3-(4-phenyl-1H-1,2,3-triazol-1-yl)pyrrolidin-1-yl)methanone	分子量：428.5 密度：N/A 沸点：N/A 熔点：N/A	2034385-34-5	C₂₄H₂₄N₆O₂
N-[(pyrimidin-5-yl)methyl]hydroxylamine	N-[(pyrimidin-5-yl)methyl]hydroxylamine	分子量：125.13 密度：N/A 沸点：N/A 熔点：N/A	1505698-20-3	C₅H₇N₃O
(3R)-5-fluoro-3-hydroxypentanoic acid	(3R)-5-fluoro-3-hydroxypentanoic acid	分子量：136.12 密度：N/A 沸点：N/A 熔点：N/A	2227737-14-4	C₅H₉FO₃
N-(2-oxo-2-(3-(4-phenyl-1H-1,2,3-triazol-1-yl)pyrrolidin-1-yl)ethyl)acetamide	N-(2-oxo-2-(3-(4-phenyl-1H-1,2,3-triazol-1-yl)pyrrolidin-1-yl)ethyl)acetamide	分子量：313.35 密度：N/A 沸点：N/A 熔点：N/A	2034424-49-0	C₁₆H₁₉N₅O₂
1-(1-((5-chlorothiophen-2-yl)sulfonyl)pyrrolidin-3-yl)-4-phenyl-1H-1,2,3-triazole	1-(1-((5-chlorothiophen-2-yl)sulfonyl)pyrrolidin-3-yl)-4-phenyl-1H-1,2,3-triazole	分子量：394.9 密度：N/A 沸点：N/A 熔点：N/A	2034354-66-8	C₁₆H₁₅ClN₄O₂S₂
N-(4,6-Dibromopyridin-3-yl)formamide	N-(4,6-Dibromopyridin-3-yl)formamide	分子量：279.92 密度：N/A 沸点：N/A 熔点：N/A	1234014-65-3	C₆H₄Br₂N₂O
2,4-Dichloro-6-iodopyrimidine	2,4-Dichloro-6-iodopyrimidine	分子量：274.87 密度：N/A 沸点：N/A 熔点：N/A	1062608-49-4	C₄HCl₂IN₂
tert-Butyl N-[(decahydroquinolin-4-yl)methyl]carbamate	tert-Butyl N-[(decahydroquinolin-4-yl)methyl]carbamate	分子量：268.39 密度：N/A 沸点：N/A 熔点：N/A	1780337-60-1	C₁₅H₂₈N₂O₂
2,4,6-Tris(4-nitrophenyl)pyridine	2,4,6-Tris(4-nitrophenyl)pyridine	分子量：442.4 密度：N/A 沸点：N/A 熔点：N/A	1653-68-5	C₂₃H₁₄N₄O₆
1,3-Bis(4-chlorophenyl)-3-thioxo-1-propanone	1,3-Bis(4-chlorophenyl)-3-thioxo-1-propanone	分子量：309.2 密度：N/A 沸点：N/A 熔点：N/A	165328-19-8	C₁₅H₁₀Cl₂OS
4-Cyclopentyl-3-(trifluoromethyl)benzaldehyde	4-Cyclopentyl-3-(trifluoromethyl)benzaldehyde	分子量：242.24 密度：N/A 沸点：N/A 熔点：N/A	1206125-18-9	C₁₃H₁₃F₃O
2-Amino-1-[4-(diethylamino)phenyl]propan-1-one	2-Amino-1-[4-(diethylamino)phenyl]propan-1-one	分子量：220.31 密度：N/A 沸点：N/A 熔点：N/A	1552983-93-3	C₁₃H₂₀N₂O
3-Bromo-2-fluoro-6-hydroxybenzylamine	3-Bromo-2-fluoro-6-hydroxybenzylamine	分子量：220.04 密度：N/A 沸点：N/A 熔点：N/A	1500882-32-5	C₇H₇BrFNO
2-[(6-Chloro-3-nitropyridin-2-yl)amino]-2-(4-fluorophenyl)propane-1,3-diol	2-[(6-Chloro-3-nitropyridin-2-yl)amino]-2-(4-fluorophenyl)propane-1,3-diol	分子量：341.72 密度：N/A 沸点：N/A 熔点：N/A	905586-95-0	C₁₄H₁₃ClFN₃O₄
2,4-Dibromo-3-fluorophenol	2,4-Dibromo-3-fluorophenol	分子量：269.89 密度：N/A 沸点：N/A 熔点：N/A	1107562-16-2	C₆H₃Br₂FO
3-Amino-6-bromo-2-fluorobenzonitrile	3-Amino-6-bromo-2-fluorobenzonitrile	分子量：215.02 密度：N/A 沸点：N/A 熔点：N/A	1507928-98-4	C₇H₄BrFN₂
2-[5-(dimethylamino)-2-methyl-1H-1,3-benzodiazol-1-yl]acetic acid	2-[5-(dimethylamino)-2-methyl-1H-1,3-benzodiazol-1-yl]acetic acid	分子量：233.27 密度：N/A 沸点：N/A 熔点：N/A	1553799-59-9	C₁₂H₁₅N₃O₂
N-(3-(3-(1-(Pyridin-2-ylmethyl)-1H-pyrazol-3-yl)ureido)phenyl)thiophene-2-carboxamide	N-(3-(3-(1-(Pyridin-2-ylmethyl)-1H-pyrazol-3-yl)ureido)phenyl)thiophene-2-carboxamide	分子量：418.5 密度：N/A 沸点：N/A 熔点：N/A	1789009-21-7	C₂₁H₁₈N₆O₂S