InChI=1S/C36H28N2O4/c1-38-16-14-20-18-26(41-3)36(42-4)32-24-12-8-6-10-22(24)30(34(38)28(20)32)29-21-9-5-7-11-23(21)31-27-19(13-15-37-33(27)29)17-25(40-2)35(31)39/h5-13,15,17-18H,14,16H2,1-4H3