InChI=1S/C21H30O10/c1-8-7-29-10-6-9-4-5-11(21(3,28)20(9,2)17(25)12(8)10)30-19-15(24)13(22)14(23)16(31-19)18(26)27/h7,9,11,13-17,19,22-25,28H,4-6H2,1-3H3,(H,26,27)