InChI=1S/C34H34N4O4.Zn/c1-7-21-17(3)25-13-26-19(5)23(9-11-33(39)40)31(37-26)16-32-24(10-12-34(41)42)20(6)28(38-32)15-30-22(8-2)18(4)27(36-30)14-29(21)35-25;/h7-8,13-16H,1-2,9-12H2,3-6H3,(H4,35,36,37,38,39,40,41,42);/q;+2/p-2/b25-13-,26-13-,27-14-,28-15-,29-14-,30-15-,31-16-,32-16-; PROTOPORPHYRIN IX CONTAINING ZN CC1=C(CCC(O)=O)C2=NC1=Cc3n4[Zn][N@@]5C(=CC6=NC(=Cc4c(C)c3C=C)C(=C6C)C=C)C(=C(CCC(O)=O)C5=C2)C CC1=C(CCC(O)=O)C2=NC1=Cc3n4[Zn][N]5C(=CC6=NC(=Cc4c(C)c3C=C)C(=C6C)C=C)C(=C(CCC(O)=O)C5=C2)C