72924-08-4 Manganese(4+), ((4,4',4'',4'''-(21H,23H-porphine-5,10,15,20-tetrayl-kappaN21,kappaN22,kappaN23,kappaN24)tetrakis(1-methylpyridiniumato))(2-))-, (SP-4-1)- Mntmpyp