52629-13-7 Fe(II) Picket-fence porphyrin Fe(II)Tpp Iron (II) meso-tetra(alpha,alpha,alpha,alpha-o-pivalamidophenyl)porphyrin Iron, ((N,N',N'',N'''-(21H,23H-porphine-5,10,15,20-tetrayltetra-2,1-phenylene)tetrakis(2,2-dimethylpropanamidato))(2-)-N21,N22,N23,N24)-, (SP-4-1)-