InChI=1S/C21H30O11/c1-7-3-4-10-16(32-20(28)21(10,29)6-22)12-8(2)11(5-9(7)12)30-19-15(25)13(23)14(24)17(31-19)18(26)27/h8-17,19,22-25,29H,1,3-6H2,2H3,(H,26,27)