Glutathione

This listing supplies reduced glutathione (GSH) as a lyophilized reference material for in-vitro and preclinical laboratory work, presented at a 750 mg fill weight per vial. Glutathione is a tripeptide (C10H17N3O6S, CAS 70-18-8) built from three amino-acid residues — glutamine/glutamate, cysteine, and glycine — but it is not a conventional linear peptide. Its defining structural feature is an unusual gamma-glutamyl bond: the first residue is linked through the side-chain carboxyl rather than the alpha-carboxyl, a connectivity that makes the molecule resistant to standard aminopeptidases and gives it distinct chemistry from ordinary tripeptides. Laboratories therefore treat it as a thiol-bearing redox reagent rather than as a simple sequence peptide.