InChI=1/C21H24O10/c1-7-3-4-10-8(2)20(28)30-17(10)13-9(5-11(22)12(7)13)6-29-21-16(25)14(23)15(24)18(31-21)19(26)27/h5,10,13-18,21,23-25H,2-4,6H2,1H3,(H,26,27)