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