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