InChI=1S/C21H32O9/c1-10-4-5-19(2)12(6-10)30-21(9-22)8-11(7-20(19,21)3)28-18-15(25)13(23)14(24)16(29-18)17(26)27/h6,11-16,18,22-25H,4-5,7-9H2,1-3H3,(H,26,27)