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