InChI=1S/C21H24O11/c1-21(2,28)7-6-10-8-9-4-5-11(22)30-16(9)18(15(10)29-3)32-20-14(25)12(23)13(24)17(31-20)19(26)27/h4-8,12-14,17,20,23-25,28H,1-3H3,(H,26,27)