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