InChI=1/C31H24N2O4/c1-19-11-13-25-24(15-19)29(34)27-28(33(31(35)30(27)37-25)26-14-12-20(2)17-32-26)22-9-6-10-23(16-22)36-18-21-7-4-3-5-8-21/h3-17,28H,18H2,1-2H3/t28-/m0/s1 ED12FC8E3390074D