InChI=1S/C22H20O12/c1-31-10-6-11(24)13-12(7-10)32-18(8-3-2-4-9(23)5-8)19(14(13)25)33-22-17(28)15(26)16(27)20(34-22)21(29)30/h2-7,15-17,20,22-24,26-28H,1H3,(H,29,30)