S-(4-Chlorophenyl) methanesulfonothioate

S-(4-Methoxybenzyl)thioglycolylaminoethylsulfonylethyl-4-nitrophenyl carbonate

S-(4-Methylphenyl) 4-(hydroxy(oxido)amino)benzenesulfonothioate

S-(4-Methylphenyl) 4-methylbenzenesulfonothioate

S-(4-Methylphenyl) ethanethioate

S-(4-Nitrobenzyl)glutathione

S-(4-Nitrocarbobenzoxy)glutathione

S-(4-Nitrophenacyl)glutathione

S-(4-tert-Butylphenyl) 4-tert-butylbenzenesulfonothioate

S-(5'-Deoxy-5'-adenosyl)-1-ammonio-4-(methylsulfonio)-2-cyclopentene

S-(5'-Deoxy-5'-adenosyl)methionine iodide

S-(5'-Deoxyadenosyl-5')-S-methylthioethylhydroxylamine

S-(5-((Ethoxycarbonyl)amino)-1, 3, 4-thiadiazol-2-yl) O-ethyl thiocarbonate

S-(5-((p-Chloroanilino)sulphonyl)benzothiazol-2-yl) O-cyclohexyl thiocarbonate

S-(5-(Butylthio)-1, 3, 4-thiadiazol-2-yl) O-ethyl thiocarbonate

S-(6-Purinyl)-N-acetylcysteine

S-(6-Purinyl)cysteine

S-(6-Purinyl)glutathione

S-(6-Purinyl)homocysteine

S-(9-Hydroxy-9, 10-dihydro-10-phenanthryl)-L-cysteine