InChI=1S/C22H24O9/c23-15-16(24)19(20(26)27)31-22(17(15)25)30-18(14-9-5-2-6-10-14)21(28)29-12-11-13-7-3-1-4-8-13/h1-10,15-19,22-25H,11-12H2,(H,26,27)