InChI=1S/C23H20O11/c24-12-2-1-9-11-7-31-14-6-13-8(3-4-30-13)5-10(14)18(11)32-19(9)20(12)33-23-17(27)15(25)16(26)21(34-23)22(28)29/h1-6,11,15-18,21,23-27H,7H2,(H,28,29)