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