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