Cell permeable superoxide dismutase (SOD) mimetic and peroxynitrite scavenger. Catalyzes the dismutation of O2- even in the presence of excess EDTA. Displays a protective effect against H2O2 mediated injury in astroglial cells. Purity: ≥95% (TLC). Appearance: Black crystalline powder. Solubility: Soluble in water or aqueous buffers (e.g. 0.1M TRIS-HCl, pH 9.0 containing 1mM EDTA (>50mg/ml) or PBS, pH 7.2 (4mg/ml)). Long Term Storage: -20°C.