InChI=1S/C23H20O12/c24-11-5-3-10(4-6-11)23(33)19(29)13(14(25)20(23)30)9-1-7-12(8-2-9)34-22-17(28)15(26)16(27)18(35-22)21(31)32/h1-8,13,15-18,22,24,26-28,33H,(H,31,32)