InChI=1S/C30H26O12/c31-13-22-26(38)27(39)30(42-23(37)10-3-14-1-6-16(32)7-2-14)29(41-22)25-19(35)11-18(34)24-20(36)12-21(40-28(24)25)15-4-8-17(33)9-5-15/h1-12,22,26-27,29-35,38-39H,13H2/b10-3+