InChI=1S/C40H26N2O6/c1-47-23-7-3-21(4-8-23)19-41-37(43)29-15-11-25-27-13-17-31-36-32(40(46)42(39(31)45)20-22-5-9-24(48-2)10-6-22)18-14-28(34(27)36)26-12-16-30(38(41)44)35(29)33(25)26/h3-18H,19-20H2,1-2H3