InChI=1S/C23H20O13/c1-31-7-5-10(32-2)12-11(6-7)33-18-8-3-4-9(14(24)19(8)35-22(30)13(12)18)34-23-17(27)15(25)16(26)20(36-23)21(28)29/h3-6,15-17,20,23-27H,1-2H3,(H,28,29)