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