InChI=1S/C23H20N2O4.Fe/c26-21-7-3-1-5-17(21)14-24-19-11-9-16(10-12-23(28)29)13-20(19)25-15-18-6-2-4-8-22(18)27;/h1-9,11,13-15,26-27H,10,12H2,(H,28,29);/q;+4/p-2/b24-14+,25-15+;