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
2-chloro-4-acetamidoacetophenone 103273-72-9
a-Aminopropiophenone 1196-28-7
2-(3-chloro-2-oxo-1,3-dihydroindol-4-yl)ethyl benzoate 139122-17-1
N-(1-METHYLPIPERIDIN-4-YL)ANILINE 22261-94-5
1-METHYL-2-BENZIMIDAZOLINONE 1849-01-0
1-Methyl-1H-benzimidazole-2-carbaldehyde 3012-80-4
3-Amino-4-(methoxycarbonyl)benzoic acid 60728-41-8
1-Methyl-1H-imidazole-2-carboxylic acid 20485-43-2
1-Naphthalenecarboxylicacid, methyl ester 2459-24-7
1-methyl-1h-benzimidazole-2-sulfonic acid 5533-38-0
pent-1-en-4-yn-3-ol 14304-27-9
Benzoic acid, 5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitro-, 2-ethoxy-1-methyl-2-oxoethyl ester 83513-60-4
PicrosideⅡ 989-81-1
4-Chloro-2,6-dimethyl-nicotinic acid ,97 56022-09-4
Methan-d2-ol-d 53952-43-5
3-Nitro-2-xylene 83-41-0
2-Amino-4-chlorothiophenol 1004-00-8
1,4-Benzene dimethanethiol 105-09-9
4-mercaptobenzoic acid 1074-36-8
2-metyl-5-chloro-benzothiazole 1006-99-1
1,2-Bis(4-nitrophenyl)disulfane 100-32-3
4-(Methylmercapto)aniline 104-96-1
4-Bromothioanisole 104-95-0
Phenyl thioacetic acid 103-04-8
4-acetamidothiophenol 1126-81-4
o-nitrophenyl disulfide 1155-00-6
2,2'-Disulfanediyldianiline 1141-88-4
2-Aminodiphenyl sulfide 1134-94-7
1-(Hydroxymethyl)-5,5-dimethylhydantoin 116-25-6
bis(4-chlorophenyl) disulfide 1142-19-4
3-(Bromomethyl)-5-chlorobenzo[b]thiophene 1198-51-2
Pyrazolanthrone (SP600125) 129-56-6
4-Methylthio benzoic acid 13205-48-6
4-Chlorophenyl methyl sulfide 123-09-1
Bis(2-fluorophenyl) disulfide 14135-38-7
Bis-3,5-Dichlorophenyl disulfide 137897-99-5
2-Methyl diphenyl sulfide 13963-35-4
Cyclopropanesulfonyl chloride 139631-62-2
3-Phenyl-2-propyn-1-ol 1504-58-1
4-Methylbenzhydrol 1517-63-1
Phenyl tribromomethyl sulfone 17025-47-7
3-Chlorothiophene 17249-80-8
2,3-Dichlorobenzenethiol 17231-95-7
3,5-Dichlorobenzenethiol 17231-94-6
2-Chlorothiosanisole 17733-22-1
4-Nitrothiophenol 1849-36-1
Phenylthioethene 1822-73-7
o-Bromo(methylthio)benzene 19614-16-5
3,4-Dimethylbenzenethiol 18800-53-8
2,4-Bis(4-methoxyphenyl)-1,3,2,4-dithiadiphosphetane 2,4-disulfide 19172-47-5