γ-Glu-Cys (ammonium salt)

γ-Glutamylcysteine (γ-Glu-Cys) is the dipeptide intermediate in the biosynthesis of glutathione, formed by γ-glutamylcysteine synthetase. It also serves as the foundational building block for phytochelatins, which are involved in plant heavy metal detoxification. This compound is utilized in research studying oxidative stress, metal homeostasis, and detoxification pathways in both cellular and biochemical assays.