InChI=1S/C20H36O9/c1-13(9-7-5-3-2-4-6-8-10-14(22)11-12-21)28-20-17(25)15(23)16(24)18(29-20)19(26)27/h13,15-18,20-21,23-25H,2-12H2,1H3,(H,26,27)