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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 CAS号
7-Bromo-4,6-dichloro-1-(2-isopropylphenyl)quinazolin-2(1h)-one 2230875-47-3
2-{6,6-Difluorospiro[3.3]heptan-2-yl}acetaldehyde 1936138-89-4
9-Methyl-6-oxa-10-azaspiro[4.5]decane 2172171-34-3
3-(3,4-Dibromophenyl)propanenitrile 1804039-32-4
1-(tert-Butyl) 3-methyl 2-(2-chloropyrimidin-4-yl)malonate 2376833-42-8
1-Imino-1lambda6-thiolane-1,3-dione 1935397-43-5
4-Methyl-N-(2,2,2-trifluoroethyl)thiophene-2-carboxamide 1856985-06-2
3'-Bromo-2'-fluoro-5'-hydroxyphenacyl chloride 1805554-28-2
2-Chloro-5-iodoquinazolin-4(3H)-one 1107694-74-5
6,8-Difluoro-2-methylquinazolin-4(3H)-one 1601120-89-1
(E)-2-(1H-benzo[d][1,2,3]triazol-1-yl)-N'-(3,5-dibromo-2-hydroxybenzylidene)acetohydrazide 315210-96-9
2-Chloro-5,6-dimethylnicotinoyl chloride 2208095-52-5
2-[1,1'-biphenyl]-4-yl-4,5-dimethylPyridine 1686126-93-1
8-Bromo-5-(trifluoromethyl)imidazo[1,2-a]pyridine 2137028-32-9
4-Cinnolinamine, 3,6-dichloro- 17837-69-3
4-(5-Chloro-1,3-benzothiazol-2-yl)phenol 2727-25-5
2-amino-5-butyl-4-oxo-4,5-dihydro-1H-pyrrole-3-carbonitrile 929974-30-1
2-Amino-4-oxo-1-azaspiro[4.5]dec-2-ene-3-carbonitrile 929974-38-9
(S)-4-Fluoro-5-methyl-2,3-dihydro-1H-inden-1-amine 1272728-48-9
2-(4-Fluoro-2-methoxyphenoxy)-propionic acid 2270907-08-7
1-Benzopyran,3-dipropylamino-6-hydroxy 116005-03-9
1-(4-Ethylphenoxy)silatrane 90936-53-1
C4 Azlactone 176664-99-6
Pomalidomide-PEG1-NH2 2380273-66-3
1,1,1,2,2,3,3-Heptafluorooct-4-ene 2707-72-4
3-(3,4-Difluorophenyl)-N-(1-(6-(4-(pyridin-2-YL)piperazin-1-YL)pyrazin-2-YL)ethyl)propanamide 2248160-97-4
2H-1,2,4-Benzothiadiazine, 3-bromo-6,7-difluoro-5-methoxy-, 1,1-dioxide 2100840-44-4
Spiro[1,10-diazatricyclo[6.4.0.02,6]dodeca-2(6),7-diene-5,1'-cyclopropane]-9-one 2375194-74-2
8-Chloro-3-iodo-6-(trifluoromethyl)imidazo[1,2-a]pyrazine 2170373-45-0
6-Amino-2-fluoro-3-iodophenol 2090794-57-1
tert-butyl N-[N-[(2-methylpropan-2-yl)oxycarbonyl]-N'-[4-(2-morpholin-4-ylethyl)phenyl]carbamimidoyl]carbamate 1202679-63-7
2-Bromopyridine-4-sulfonyl fluoride 2385372-16-5
2-(Trifluoromethyl)bicyclo[2.2.2]octan-2-amine 1855645-71-4
(2S)-2-Quinolin-3-yloxypropanoic acid 1867292-03-2
8-Chloro-6-(trifluoromethyl)imidazo[1,2-a]pyrazine 2170373-00-7
5-amino-1-methyl-1H-1,2,3-triazole-4-carboximidamide hydrochloride 55432-72-9
1H-1,2,3-triazole-4-carboximidamide hydrochloride 1808444-75-8
4-Amino-7-bromoimidazo[2,1-f][1,2,4]triazine-2-carboxaldehyde 2170372-97-9
[1-(Hydroxymethyl)-3-methylidenecyclobutyl]methanol 2170372-19-5
3-Bromo-8-chloro-6-(trifluoromethyl)imidazo[1,2-a]pyrazine 2170373-01-8
6-{4-[(4-Cyclopropylphenyl)acetyl]piperazin-1-yl}pyridazine-3-carbonitrile 2170608-85-0
4-(Perfluoropropan-2-yl)benzenesulfonamide 1959608-06-0
6-Hydroxypyrazolopyridine 2679779-39-4
9-(4-fluorophenyl)-2-methyl-6-phenyl-5,6,7,9-tetrahydro[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one 879614-95-6
2-(4-Bromo-2-chlorophenyl)-N-methylacetamide 2270912-38-2
5-Ethyl-5-methyl-2-thiobarbituric acid 39847-07-9
3,4,8-Trimethylnonyl acetate 18352-81-3
1-Aminospiro[2.3]hexan-5-ol 2090259-15-5
4-Amino-2-oxabicyclo[2.1.1]hexane-1-carbonitrile 2170372-35-5
(4-Amino-2-oxabicyclo[2.2.2]octan-1-yl)methanol 2170372-44-6