InChI=1S/C20H24O9/c1-9(21)14(22)7-10-2-3-12-8-13(5-4-11(12)6-10)28-20-17(25)15(23)16(24)18(29-20)19(26)27/h2-6,8-9,14-18,20-25H,7H2,1H3,(H,26,27)/t9?,14?,15-,16-,17+,18-,20?/m0/s1