InChI=1S/C21H30O10/c1-19(2)4-9-3-10(7-22)21(29)12(23)6-20(21,11(9)5-19)8-30-18-15(26)13(24)14(25)16(31-18)17(27)28/h3,7,9,11-16,18,23-26,29H,4-6,8H2,1-2H3,(H,27,28)