CAS Number Index

A CAS Registry Number,also referred to as CASRN or CAS Number, is a unique numerical identifier assigned by the Chemical Abstracts Service (CAS) to every chemical substance described in the open scientific literature (currently including all substances described from 1957 through the present, plus some substances from the early or mid 1900s), including organic and inorganiccompounds, minerals, isotopes, alloys and nonstructurable materials (UVCBs, of unknown, variable composition, or biological origin).The registry maintained by CAS is an authoritative collection of disclosed chemical substance information. It currently identifies more than 144 million unique organic and inorganic substances and 67 million protein and DNA sequences,plus additional information about each substance. It is updated with around 15,000 additional new substances daily.（information coming from wikipedia.org)

Name CAS Number
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

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