Keywords: O2â¢â¾; superoxide; ONOO-; peroxynitrite; ClO-; hypochlorite; MnTE-2-PyP5+; Mn(III) meso-tetrakis(N-ethylpyridinium-2-yl)porphyrin (also known as AEOL10113, BMX-010); MnTE-3(or 4)-PyP5+; Mn(III) meso-tetrakis(N-ethylpyridinium-3(or 4)-yl)porphyrin;