L-Glutathione (oxidized form) Product SpecificationAlternative Name: GSSG, (γ-Glu-Cys-Gly)2 Formula: C20H32N6O12S2 MW: 612.6 CAS: 27025-41-8 MI: 14: 4475 Formulation: Free acid. Purity: ≥95.0% (HPLC) Appearance: White solid. Solubility: Soluble in water. Long Term Storage: +4°C Handling: Protect from moisture.