InChI=1S/C21H32O9/c1-9(2)7-11(22)8-10(3)12-5-6-21(4,18-16(12)28-18)30-20-15(25)13(23)14(24)17(29-20)19(26)27/h7,10,12-18,20,23-25H,5-6,8H2,1-4H3,(H,26,27)