InChI=1S/C23H20O13/c1-31-11-5-8-10(6-12(11)32-2)33-17-7-3-4-9(24)19(18(7)34-22(30)13(8)17)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)