InChI=1S/C22H24O9/c1-28-14-10-13(29-22-18(25)16(23)17(24)20(31-22)21(26)27)8-7-12(14)9-15-19(30-15)11-5-3-2-4-6-11/h2-8,10,15-20,22-25H,9H2,1H3,(H,26,27)