InChI=1S/C21H22O11/c1-8(9-2-4-10(22)5-3-9)13(24)11-6-7-12(23)18(14(11)25)31-21-17(28)15(26)16(27)19(32-21)20(29)30/h2-8,15-17,19,21-23,25-28H,1H3,(H,29,30)