InChI=1S/C21H22O11/c1-8(9-5-3-2-4-6-9)13(24)12-10(22)7-11(23)18(14(12)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)