InChI=1S/C22H22O9/c1-10-15(11-5-3-2-4-6-11)16(23)13-8-7-12(9-14(13)29-10)30-22-19(26)17(24)18(25)20(31-22)21(27)28/h2-10,15,17-20,22,24-26H,1H3,(H,27,28)