InChI=1S/C21H24O11/c1-5-21(2,3)9-6-8-7-10(29-4)16(14(25)15(8)30-19(9)28)31-20-13(24)11(22)12(23)17(32-20)18(26)27/h5-7,11-13,17,20,22-25H,1H2,2-4H3,(H,26,27)