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