InChI=1S/C20H26O10/c1-8(2)4-5-11-12(21)7-6-10(9(3)18(25)26)16(11)29-20-15(24)13(22)14(23)17(30-20)19(27)28/h4,6-7,9,13-15,17,20-24H,5H2,1-3H3,(H,25,26)(H,27,28)