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