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
ethyl 4-methyl-2-sulfanylidene-3H-1,3-thiazole-5-carboxylate 17309-13-6
Bicyclo[2.2.1]heptan-2-ol,1,7,7-trimethyl-, 2-acetate 92618-89-8
Benzenaminium, N,N,N-trimethyl-, hexafluorophosphate(1-) 2932-48-1
1-Methyl-3-[3-(trifluoromethyl)phenyl]urea 3032-40-4
Urea,N-(3-chloro-4-methylphenyl)-N'-methyl- 22175-22-0
Hexanoic acid, 2-butyl-2-cyano-, ethyl ester 67105-41-3
4-[2-(1-Pyrrolidinyl)ethyl]piperidine 14759-08-1
N-ferrocenylmethylene-para-toluidine 12113-23-4
N,N-bis(2-chloroethyl)acetamide 19945-22-3
(CIS)-CYCLOPROPANE-1,2-DICARBOXYLIC ACID 696-74-2
1,2-dibenzylhydrazine 56157-71-2
2,4-Hexadienedioicacid, 1,6-dimethyl ester, (2E,4E)- 1119-43-3
Isothiazolo[3,4-b]pyridin-3-ylamine 42242-06-8
1,3-Isobenzofurandione,5,6-dibromohexahydro- 23893-84-7
Propanedioic acid,2-ethyl-2-(2-propen-1-yl)-, 1,3-diethyl ester 59726-37-3
1,4-Benzenediol,2-(1-methylethyl)- 2349-71-5
ethyl 2-isothiocyanato-4-methylsulfanyl-butanoate 58511-07-2
Imidazo[1,2-a]pyridine,3-nitroso-2-phenyl- 3672-37-5
4 (1H)-Pyrimidinone, 2-amino-6-methyl-5-octyl- 4038-57-7
Benzamide,2-hydroxy-N,N-dimethyl- 1778-08-1
5-anilino-1H-pyrimidine-2,4-dione 4870-31-9
4-Ethoxycarbonylthiolan-3-one 78647-31-1
1(2H)-Isoquinolinone, 2-methyl-4-nitro- 33930-79-9
Acetamide,N-[(1R,2R)-2-(4-acetylphenyl)-2-hydroxy-1-(hydroxymethyl)ethyl]-2,2-dichloro- 735-52-4
(2,5-Dimethylphenyl)acetic acid 6331-04-0
Ethyl-2-cyano-3-[4-(diethylamino)phenyl]acrylate 62134-40-1
Sulfanilamide, N1-(5-ethyl-1,3,4-thiadiazol-2-yl)-, monosodium salt 1904-95-6
3-(2-CHLOROETHYL)OXAZOLIDIN-2-ONE 2508-01-2
Benzenemethanol, a-methyl-2-nitro- 3205-25-2
Acetamide, N-2-propynyl- 65881-41-6
2,4,8,10-Tetraoxaspiro[5.5]undecane,3,9-diphenyl- 2064-95-1
Ethanone,1-(3,4-dihydro-1(2H)-quinoxalinyl)- 6639-92-5
4,5,6-Pyrimidinetriamine sulfate 49721-45-1
Imidodicarbonimidic diamide, N- (4-methoxyphenyl)- 43191-41-9
Bismuthate(1-),[[4-[(hydroxyacetyl)amino]phenyl]arsonato(2-)-kO]oxo-, hydrogen (9CI) 116-49-4
1H-Imidazole,2,5-dichloro-4-nitro- 15965-32-9
Xantocillin 580-74-5
cis,cis-muconic acid 1119-72-8
2-Oxoindoline-3-carbaldehyde 78610-70-5
ethyl 2-cyano-2-propylpentanoate 66546-90-5
2,4,6-Trihydrazinyl-1,3,5-triazine 10105-42-7
Benzoic acid,5-chloro-2,4-dimethoxy- 23053-81-8
a-D-Glucopyranose,2-(acetylamino)-2-deoxy-, 1,3,4,6-tetraacetate 7784-54-5
L-(+)-Arabinose 5328-37-0
4-Chloro-7-methyl-1-indanone 5333-90-4
di-n-octadecyl phosphate 3037-89-6
2,4,5-TRIHYDROXYBENZOIC ACID 610-90-2
m-Carboxybenzenesulfonic acid 121-53-9
3-(methylthio) benzoic acid 825-99-0
5-Aminotetrazole 4418-61-5

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