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
1-[(Oxan-2-yl)methyl]-1H-1,2,3-triazol-4-amine	1-[(Oxan-2-yl)methyl]-1H-1,2,3-triazol-4-amine	分子量：182.22 密度：N/A 沸点：N/A 熔点：N/A	1539949-07-9	C₈H₁₄N₄O
1-[(4-Bromophenyl)methyl]-1H-1,2,3-triazol-4-amine	1-[(4-Bromophenyl)methyl]-1H-1,2,3-triazol-4-amine	分子量：253.10 密度：N/A 沸点：N/A 熔点：N/A	1522080-21-2	C₉H₉BrN₄
2-(Aminomethyl)-1-(furan-2-yl)pentan-1-ol	2-(Aminomethyl)-1-(furan-2-yl)pentan-1-ol	分子量：183.25 密度：N/A 沸点：N/A 熔点：N/A	1504181-72-9	C₁₀H₁₇NO₂
2-Bromo-1-(chloromethoxy)-4-methylbenzene	2-Bromo-1-(chloromethoxy)-4-methylbenzene	分子量：235.50 密度：N/A 沸点：N/A 熔点：N/A	1501166-83-1	C₈H₈BrClO
1-(Chloromethoxy)-2-methyl-3-nitrobenzene	1-(Chloromethoxy)-2-methyl-3-nitrobenzene	分子量：201.61 密度：N/A 沸点：N/A 熔点：N/A	1532826-84-8	C₈H₈ClNO₃
1-(Chloromethoxy)-3-methyl-2-nitrobenzene	1-(Chloromethoxy)-3-methyl-2-nitrobenzene	分子量：201.61 密度：N/A 沸点：N/A 熔点：N/A	14790-66-0	C₈H₈ClNO₃
1-[2-(morpholin-4-yl)ethyl]-1H-1,2,3-triazol-4-amine	1-[2-(morpholin-4-yl)ethyl]-1H-1,2,3-triazol-4-amine	分子量：197.24 密度：N/A 沸点：N/A 熔点：N/A	1507212-61-4	C₈H₁₅N₅O
5-[4-(4-Morpholinyl)-6-quinolinyl]-2-benzoxazolamine	5-[4-(4-Morpholinyl)-6-quinolinyl]-2-benzoxazolamine	分子量：346.4 密度：N/A 沸点：N/A 熔点：N/A	1268453-72-0	C₂₀H₁₈N₄O₂
[2-(Cyclopropylmethyl)-3H-imidazo[4,5-b]pyridin-7-yl]methanol	[2-(Cyclopropylmethyl)-3H-imidazo[4,5-b]pyridin-7-yl]methanol	分子量：203.24 密度：N/A 沸点：N/A 熔点：N/A	1260390-73-5	C₁₁H₁₃N₃O
Acetic acid, 2-(2,5-dibromo-4-methoxyphenoxy)-	Acetic acid, 2-(2,5-dibromo-4-methoxyphenoxy)-	分子量：339.96 密度：N/A 沸点：N/A 熔点：N/A	714251-00-0	C₉H₈Br₂O₄
9-[2-(3,4-dimethoxyphenyl)ethyl]-1-methyl-3-prop-2-enyl-6,7,8,9a,10,10a-hexahydro-4aH-purino[7,8-a]pyrimidine-2,4-dione	9-[2-(3,4-dimethoxyphenyl)ethyl]-1-methyl-3-prop-2-enyl-6,7,8,9a,10,10a-hexahydro-4aH-purino[7,8-a]pyrimidine-2,4-dione	分子量：429.5 密度：N/A 沸点：N/A 熔点：N/A	893958-68-4	C₂₂H₃₁N₅O₄
Methyl 3-((2,4-dinitro-5-phenoxyphenyl)(pyridin-2-ylmethyl)amino)propanoate	Methyl 3-((2,4-dinitro-5-phenoxyphenyl)(pyridin-2-ylmethyl)amino)propanoate	分子量：452.4 密度：N/A 沸点：N/A 熔点：N/A	1374651-44-1	C₂₂H₂₀N₄O₇
4-(Pyridin-2-YL)-4,5,6,7-tetrahydrothieno[3,2-C]pyridine	4-(Pyridin-2-YL)-4,5,6,7-tetrahydrothieno[3,2-C]pyridine	分子量：216.30 密度：N/A 沸点：N/A 熔点：N/A	1255099-32-1	C₁₂H₁₂N₂S
4,6-Dichloro-5-(5-(trifluoromethyl)benzo[D]thiazol-2-YL)pyrimidin-2-amine	4,6-Dichloro-5-(5-(trifluoromethyl)benzo[D]thiazol-2-YL)pyrimidin-2-amine	分子量：365.2 密度：N/A 沸点：N/A 熔点：N/A	1208987-38-5	C₁₂H₅Cl₂F₃N₄S
5,8-Dichloro-1,2,3,4,4a,8a-hexahydroisoquinolin-7-amine	5,8-Dichloro-1,2,3,4,4a,8a-hexahydroisoquinolin-7-amine	分子量：219.11 密度：N/A 沸点：N/A 熔点：N/A	1255099-68-3	C₉H₁₂Cl₂N₂
6-(3-Chloro-2-methylphenyl)-4-methyl-2-(3-methylbutyl)-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	6-(3-Chloro-2-methylphenyl)-4-methyl-2-(3-methylbutyl)-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	分子量：403.9 密度：N/A 沸点：N/A 熔点：N/A	893965-83-8	C₂₀H₂₆ClN₅O₂
Ethyl 5-((4-methoxy-2-methylphenyl)amino)-3-methyl-1H-pyrazole-4-carboxylate	Ethyl 5-((4-methoxy-2-methylphenyl)amino)-3-methyl-1H-pyrazole-4-carboxylate	分子量：289.33 密度：N/A 沸点：N/A 熔点：N/A	1355959-27-1	C₁₅H₁₉N₃O₃
ethyl (2R,3S)-2-methylpiperidine-3-carboxylate	ethyl (2R,3S)-2-methylpiperidine-3-carboxylate	分子量：171.24 密度：N/A 沸点：N/A 熔点：N/A	1932585-22-2	C₉H₁₇NO₂
N-Boc-5,7-dichloro-2,3-dihydroquinolin-4(1H)-one	N-Boc-5,7-dichloro-2,3-dihydroquinolin-4(1H)-one	分子量：316.2 密度：N/A 沸点：N/A 熔点：N/A	1211596-26-7	C₁₄H₁₅Cl₂NO₃
Methyl (R)-4-boc-6,6-dimethyl-morpholine-3-carboxylate	Methyl (R)-4-boc-6,6-dimethyl-morpholine-3-carboxylate	分子量：273.33 密度：N/A 沸点：N/A 熔点：N/A	1439922-07-2	C₁₃H₂₃NO₅
(R)-Methyl 3-(6-bromopyridin-2-yl)-2-((tert-butoxycarbonyl)amino)propanoate	(R)-Methyl 3-(6-bromopyridin-2-yl)-2-((tert-butoxycarbonyl)amino)propanoate	分子量：359.22 密度：N/A 沸点：N/A 熔点：N/A	1391516-67-8	C₁₄H₁₉BrN₂O₄
(R)-Methyl 4-(2-(boc-amino)-3-methoxy-3-oxopropyl)benzoate	(R)-Methyl 4-(2-(boc-amino)-3-methoxy-3-oxopropyl)benzoate	分子量：337.4 密度：N/A 沸点：N/A 熔点：N/A	1391585-26-4	C₁₇H₂₃NO₆
7'-Bromo-1,3,3',4'-tetrahydro-1'H-spiro[indene-2,2'-naphthalen]-1'-one	7'-Bromo-1,3,3',4'-tetrahydro-1'H-spiro[indene-2,2'-naphthalen]-1'-one	分子量：327.2 密度：N/A 沸点：N/A 熔点：N/A	1272758-07-2	C₁₈H₁₅BrO
8-Bromo-7-chloro-2-(2-chlorophenyl)-[1,2,4]triazolo[1,5-C]pyrimidine	8-Bromo-7-chloro-2-(2-chlorophenyl)-[1,2,4]triazolo[1,5-C]pyrimidine	分子量：343.99 密度：N/A 沸点：N/A 熔点：N/A	1254710-18-3	C₁₁H₅BrCl₂N₄
(S)-2-(4-(2-(1,3-Dioxoisoindolin-2-YL)ethyl)phenyl)propanoic acid	(S)-2-(4-(2-(1,3-Dioxoisoindolin-2-YL)ethyl)phenyl)propanoic acid	分子量：323.3 密度：N/A 沸点：N/A 熔点：N/A	1311254-99-5	C₁₉H₁₇NO₄
5-Bromo-2-chloro-6-morpholinonicotinic acid	5-Bromo-2-chloro-6-morpholinonicotinic acid	分子量：321.55 密度：N/A 沸点：N/A 熔点：N/A	1311254-66-6	C₁₀H₁₀BrClN₂O₃
N-(3-Fluorophenyl)-6-nitroquinazolin-4-amine	N-(3-Fluorophenyl)-6-nitroquinazolin-4-amine	分子量：284.24 密度：N/A 沸点：N/A 熔点：N/A	1120331-46-5	C₁₄H₉FN₄O₂
tert-Butyl (3-(6-chloro-1H-pyrrolo[2,3-b]pyridine-3-carboxamido)-4-methylphenyl)carbamate	tert-Butyl (3-(6-chloro-1H-pyrrolo[2,3-b]pyridine-3-carboxamido)-4-methylphenyl)carbamate	分子量：400.9 密度：N/A 沸点：N/A 熔点：N/A	1311254-62-2	C₂₀H₂₁ClN₄O₃
N-(3-Chloro-2-fluorophenyl)-6-nitroquinazolin-4-amine	N-(3-Chloro-2-fluorophenyl)-6-nitroquinazolin-4-amine	分子量：318.69 密度：N/A 沸点：N/A 熔点：N/A	1290545-22-0	C₁₄H₈ClFN₄O₂
2-Ethynyl-6-methoxybenzofuran	2-Ethynyl-6-methoxybenzofuran	分子量：172.18 密度：N/A 沸点：N/A 熔点：N/A	1220972-70-2	C₁₁H₈O₂
2-Chloro-5-nitro-N-(tetrahydro-2H-pyran-4-YL)pyrimidin-4-amine	2-Chloro-5-nitro-N-(tetrahydro-2H-pyran-4-YL)pyrimidin-4-amine	分子量：258.66 密度：N/A 沸点：N/A 熔点：N/A	899806-21-4	C₉H₁₁ClN₄O₃
3-(Boc-amino)-3-T-butyl-propanonitrile	3-(Boc-amino)-3-T-butyl-propanonitrile	分子量：226.32 密度：N/A 沸点：N/A 熔点：N/A	1363405-95-1	C₁₂H₂₂N₂O₂
(4R)-4-[4-(trifluoromethyl)phenyl]pyrrolidin-2-one	(4R)-4-[4-(trifluoromethyl)phenyl]pyrrolidin-2-one	分子量：229.20 密度：N/A 沸点：N/A 熔点：N/A	1384268-97-6	C₁₁H₁₀F₃NO
6-(4-Methoxyphenyl)-4,7-dimethyl-4a,9a-dihydropurino[7,8-a]imidazole-1,3-dione	6-(4-Methoxyphenyl)-4,7-dimethyl-4a,9a-dihydropurino[7,8-a]imidazole-1,3-dione	分子量：327.34 密度：N/A 沸点：N/A 熔点：N/A	99591-25-0	C₁₆H₁₇N₅O₃
6-(4-fluorophenyl)-4-methyl-2-(2-morpholin-4-ylethyl)-8,9a-dihydro-7H-purino[7,8-a]imidazol-9-ium-1,3-dione	6-(4-fluorophenyl)-4-methyl-2-(2-morpholin-4-ylethyl)-8,9a-dihydro-7H-purino[7,8-a]imidazol-9-ium-1,3-dione	分子量：415.4 密度：N/A 沸点：N/A 熔点：N/A	893957-97-6	C₂₀H₂₄FN₆O₃+
6-(4-methoxyphenyl)-4-methyl-2-(2-methylprop-2-enyl)-8,9a-dihydro-7H-purino[7,8-a]imidazol-9-ium-1,3-dione	6-(4-methoxyphenyl)-4-methyl-2-(2-methylprop-2-enyl)-8,9a-dihydro-7H-purino[7,8-a]imidazol-9-ium-1,3-dione	分子量：368.4 密度：N/A 沸点：N/A 熔点：N/A	893950-49-7	C₁₉H₂₂N₅O₃+
1-(4-(Benzo[d][1,3]dioxol-5-yloxy)but-2-yn-1-yl)-3-(3,4-dimethoxybenzyl)urea	1-(4-(Benzo[d][1,3]dioxol-5-yloxy)but-2-yn-1-yl)-3-(3,4-dimethoxybenzyl)urea	分子量：398.4 密度：N/A 沸点：N/A 熔点：N/A	1448128-24-2	C₂₁H₂₂N₂O₆
6-(2,4-Dimethoxyphenyl)-2-(3-hydroxypropyl)-4,7-dimethyl-4a,9a-dihydropurino[7,8-a]imidazole-1,3-dione	6-(2,4-Dimethoxyphenyl)-2-(3-hydroxypropyl)-4,7-dimethyl-4a,9a-dihydropurino[7,8-a]imidazole-1,3-dione	分子量：415.4 密度：N/A 沸点：N/A 熔点：N/A	896852-48-5	C₂₀H₂₅N₅O₅
2-(3-Hydroxypropyl)-6-(3-methoxyphenyl)-4-methyl-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	2-(3-Hydroxypropyl)-6-(3-methoxyphenyl)-4-methyl-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	分子量：373.4 密度：N/A 沸点：N/A 熔点：N/A	893956-85-9	C₁₈H₂₃N₅O₄
6-(4-methoxyphenyl)-4-methyl-2-(2-methylpropyl)-8,9a-dihydro-7H-purino[7,8-a]imidazol-9-ium-1,3-dione	6-(4-methoxyphenyl)-4-methyl-2-(2-methylpropyl)-8,9a-dihydro-7H-purino[7,8-a]imidazol-9-ium-1,3-dione	分子量：370.4 密度：N/A 沸点：N/A 熔点：N/A	896854-16-3	C₁₉H₂₄N₅O₃+
2-ethyl-6-(2-methoxyphenyl)-4-methyl-8,9a-dihydro-7H-purino[7,8-a]imidazol-9-ium-1,3-dione	2-ethyl-6-(2-methoxyphenyl)-4-methyl-8,9a-dihydro-7H-purino[7,8-a]imidazol-9-ium-1,3-dione	分子量：342.4 密度：N/A 沸点：N/A 熔点：N/A	893973-07-4	C₁₇H₂₀N₅O₃+
6-Benzyl-2-(3-hydroxypropyl)-4,7-dimethyl-4a,9a-dihydropurino[7,8-a]imidazole-1,3-dione	6-Benzyl-2-(3-hydroxypropyl)-4,7-dimethyl-4a,9a-dihydropurino[7,8-a]imidazole-1,3-dione	分子量：369.4 密度：N/A 沸点：N/A 熔点：N/A	896856-57-8	C₁₉H₂₃N₅O₃
4-Cyclopropoxy-2-ethyl-3-iodopyridine	4-Cyclopropoxy-2-ethyl-3-iodopyridine	分子量：289.11 密度：N/A 沸点：N/A 熔点：N/A	1243346-05-5	C₁₀H₁₂INO
5-(4-fluorophenyl)-1,3-dimethyl-8,9-dihydro-7H-pyrimido[4,5-b]quinolin-10-ium-2,4,6-trione	5-(4-fluorophenyl)-1,3-dimethyl-8,9-dihydro-7H-pyrimido[4,5-b]quinolin-10-ium-2,4,6-trione	分子量：354.4 密度：N/A 沸点：N/A 熔点：N/A	537008-57-4	C₁₉H₁₇FN₃O₃+
2-(3-Hydroxypropyl)-4,7-dimethyl-6-(2-methylphenyl)-4a,9a-dihydropurino[7,8-a]imidazole-1,3-dione	2-(3-Hydroxypropyl)-4,7-dimethyl-6-(2-methylphenyl)-4a,9a-dihydropurino[7,8-a]imidazole-1,3-dione	分子量：369.4 密度：N/A 沸点：N/A 熔点：N/A	896856-87-4	C₁₉H₂₃N₅O₃
6-(3,4-Dimethylphenyl)-4-methyl-2-(3-methylbutyl)-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	6-(3,4-Dimethylphenyl)-4-methyl-2-(3-methylbutyl)-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	分子量：383.5 密度：N/A 沸点：N/A 熔点：N/A	893947-04-1	C₂₁H₂₉N₅O₂
6-(4-Methoxyphenyl)-4-methyl-2-[(4-methylphenyl)methyl]-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	6-(4-Methoxyphenyl)-4-methyl-2-[(4-methylphenyl)methyl]-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	分子量：419.5 密度：N/A 沸点：N/A 熔点：N/A	893950-69-1	C₂₃H₂₅N₅O₃
6-(2-methoxyphenyl)-4-methyl-2-(3-methylbutyl)-8,9a-dihydro-7H-purino[7,8-a]imidazol-9-ium-1,3-dione	6-(2-methoxyphenyl)-4-methyl-2-(3-methylbutyl)-8,9a-dihydro-7H-purino[7,8-a]imidazol-9-ium-1,3-dione	分子量：384.5 密度：N/A 沸点：N/A 熔点：N/A	893973-66-5	C₂₀H₂₆N₅O₃+
6-(5-Chloro-2-methylphenyl)-4,7,8-trimethyl-4a,9a-dihydropurino[7,8-a]imidazole-1,3-dione	6-(5-Chloro-2-methylphenyl)-4,7,8-trimethyl-4a,9a-dihydropurino[7,8-a]imidazole-1,3-dione	分子量：359.8 密度：N/A 沸点：N/A 熔点：N/A	879432-53-8	C₁₇H₁₈ClN₅O₂
6-(3-Chlorophenyl)-4-methyl-2-[(2-methylphenyl)methyl]-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	6-(3-Chlorophenyl)-4-methyl-2-[(2-methylphenyl)methyl]-4a,7,8,9a-tetrahydropurino[7,8-a]imidazole-1,3-dione	分子量：423.9 密度：N/A 沸点：N/A 熔点：N/A	893979-22-1	C₂₂H₂₂ClN₅O₂