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