InChI=1S/C21H24O11/c1-21(2,8-10-11(29-3)6-4-9-5-7-12(22)30-16(9)10)20(28)32-19-15(25)13(23)14(24)17(31-19)18(26)27/h4-7,13-15,17,19,23-25H,8H2,1-3H3,(H,26,27)