InChI=1S/C21H30O10/c1-18(2)5-10-19(3)6-11(23)21(19,9(7-22)4-20(10,29)8-18)31-17-14(26)12(24)13(25)15(30-17)16(27)28/h4,7,10-15,17,23-26,29H,5-6,8H2,1-3H3,(H,27,28)