InChI=1S/C20H26O12/c1-7(2)4-5-8-9(21)6-10(11(16(8)30-3)12(22)18(26)27)31-20-15(25)13(23)14(24)17(32-20)19(28)29/h4,6,12-15,17,20-25H,5H2,1-3H3,(H,26,27)(H,28,29)