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-(2,2,3,3,3-Pentafluoropropoxy)ethane-1-sulfonyl chloride 1879837-19-0
(4-Methylcyclohexyl)methanesulfonyl fluoride 2172476-53-6
tert-butyl N-{3-fluoro-4-[(fluorosulfonyl)methyl]phenyl}carbamate 2229598-70-1
[2-(2,4-Dimethoxypyridin-3-yl)ethyl](methyl)amine 2229561-96-8
3-(Methoxymethoxy)-4-nitrobenzene-1-sulfonyl fluoride 2247106-92-7
3-[(Dimethylamino)methyl]-4-hydroxybenzene-1-sulfonyl chloride 2247107-12-4
4-[(4-Methoxypiperidin-4-yl)methyl]benzene-1,3-diol 2228824-95-9
(9H-fluoren-9-yl)methyl N-[(3-{[(tert-butoxy)carbonyl]amino}-5-[(fluorosulfonyl)oxy]-4-methylphenyl)methyl]carbamate 2418715-09-8
3-(3,5-dimethyl-1H-pyrazol-1-yl)-6-[4-(pyridin-4-yl)piperazin-1-yl]pyridazine 2877765-63-2
N-{[1-(4-ethoxy-1,3-benzothiazol-2-yl)-4-fluoropiperidin-4-yl]methyl}cyclopropanecarboxamide 2877650-38-7
6-{4-[(3-fluoro-4-methoxyphenyl)methyl]-3-methylpiperazin-1-yl}-9-methyl-9H-purine 2877691-60-4
3-Ethynyl-2,4-dimethyl-5-[(piperazin-1-yl)methyl]phenyl sulfurofluoridate 2418692-05-2
(9H-fluoren-9-yl)methyl 4-{3-amino-5-[(fluorosulfonyl)methyl]-4-methylphenyl}piperazine-1-carboxylate 2418693-38-4
(9H-fluoren-9-yl)methyl 4-{[3-amino-5-(fluorosulfonyl)-2-methylphenyl]methyl}piperazine-1-carboxylate 2418693-30-6
3-(6-Chloropyridin-2-yl)cyclohexan-1-amine hydrochloride 2490435-78-2
3-(4-Chlorophenyl)benzene-1-sulfonyl fluoride 2138183-23-8
1-(3-Chlorobenzoyl)piperidine-3-sulfonyl fluoride 2137574-26-4
2-Chloro-1,3-benzothiazole-4-sulfonyl fluoride 2137574-34-4
2-Difluoromethanesulfonylbenzene-1-sulfonyl fluoride 2138332-60-0
1-(2,3-Dihydro-1-benzofuran-5-yl)ethane-1-sulfonyl fluoride 2172144-52-2
benzyl N-({4-[2-(chlorosulfonyl)ethyl]phenyl}methyl)carbamate 2171825-24-2
benzyl N-[3-(chlorosulfonyl)-2-(cyclopropylmethyl)propyl]carbamate 2171904-46-2
2-(4-{6-[4-(Cyclohexylmethyl)piperazin-1-yl]pyridazin-3-yl}piperazin-1-yl)ethan-1-ol 2877650-09-2
benzyl N-[1-(chlorosulfonyl)-4,4-difluorobutan-2-yl]carbamate 2172025-11-3
Benzyl 3-[(chlorosulfonyl)methyl]-2-ethylpyrrolidine-1-carboxylate 2172184-35-7
2-[(1-Phenylethyl)amino]ethane-1-sulfonyl fluoride 2169463-79-8
2-[(2,2,2-Trifluoroethyl)amino]butane-1-sulfonyl fluoride 2167618-11-1
2-Amino-4,4-dimethylpentane-1-sulfonyl fluoride 2167770-67-2
2-Amino-3-(3,4-dimethylphenyl)propane-1-sulfonyl fluoride 2169115-02-8
tert-butyl N-cyclopropyl-N-[2-(fluorosulfonyl)ethyl]carbamate 2169575-89-5
tert-butyl N-[2-(chlorosulfonyl)ethyl]-N-(propan-2-yl)carbamate 2166778-92-1
(2-Ethylpyrrolidin-2-yl)methanesulfonyl fluoride 2167056-91-7
1-(But-3-en-2-yl)cyclopropane-1-sulfonyl chloride 2012122-01-7
tert-butyl N-[5-chloro-2-(chlorosulfonyl)phenyl]carbamate 2228366-50-3
2-tert-butyl-2H-1,2,3,4-tetrazole-5-sulfonyl fluoride 2228535-58-6
(2-Phenoxyphenyl)methanesulfonyl fluoride 2229497-83-8
3-Ethoxy-2-methoxybenzene-1-sulfonyl chloride 2229080-18-4
(5,6-Dichloropyridin-3-yl)methanesulfonyl fluoride 2228461-50-3
tert-butyl N-(3-fluorophenyl)-N-[2-(fluorosulfonyl)ethyl]carbamate 2171816-87-6
5-Methoxy-2-nitrobenzene-1-sulfonyl fluoride 2228598-31-8
2-Chloro-4,5-difluorobenzene-1-sulfonyl fluoride 2229271-03-6
(2-phenyl-2H-1,2,3-triazol-4-yl)methanesulfonyl fluoride 2171928-31-5
1-(Pyridin-2-yl)piperidine-4-sulfonyl fluoride 2172112-72-8
1-Cyclobutylpropane-2-sulfonyl fluoride 2172197-57-6
1,4-Dioxepane-6-sulfonyl fluoride 2172323-87-2
(1-Ethyl-3,3-difluorocyclobutyl)methanesulfonyl chloride 2137794-34-2
2-Amino-4-phenoxyphenyl fluoranesulfonate 2411266-54-9
2-{5H,6H,7H,8H,9H-[1,2,4]triazolo[4,3-a]azepin-3-yl}phenylsulfurofluoridate 2411242-45-8
2,3-dihydro-1H-indol-4-yl sulfurofluoridate 2411314-34-4
2-Trifluoromethanesulfonylphenylfluoranesulfonate 2411305-79-6

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