InChI=1S/C22H22O9/c1-2-6-12-9-10-14(29-21(28)13-7-4-3-5-8-13)15(11-12)30-22-18(25)16(23)17(24)19(31-22)20(26)27/h2-5,7-11,16-19,22-25H,1,6H2,(H,26,27)