InChI=1S/C23H20O13/c1-31-11-5-8-10(6-12(11)32-2)33-18-7-3-4-9(14(24)19(7)35-22(30)13(8)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)