InChI=1S/C21H30O10/c1-7-6-29-11-5-9-4-10(22)13(23)8(2)21(9,3)18(12(7)11)31-20-16(26)14(24)15(25)17(30-20)19(27)28/h6,8-10,13-18,20,22-26H,4-5H2,1-3H3,(H,27,28)