InChI=1S/C21H20O12/c22-8-5-10(24)14-12(6-8)31-13(15(14)25)4-7-1-2-9(23)11(3-7)32-21-18(28)16(26)17(27)19(33-21)20(29)30/h1-3,5-6,13,16-19,21-24,26-28H,4H2,(H,29,30)