InChI=1S/C20H26O9/c1-11(2)9-10-27-13-6-3-12(4-7-13)5-8-14(21)28-20-17(24)15(22)16(23)18(29-20)19(25)26/h3-4,6-7,9,15-18,20,22-24H,5,8,10H2,1-2H3,(H,25,26)