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