InChI=1S/C21H32O9/c1-9-4-5-13(29-21-19(26)18(25)17(24)15(8-22)30-21)10(2)7-14-16(12(23)6-9)11(3)20(27)28-14/h4,7,11-19,21-26H,5-6,8H2,1-3H3/b9-4-,10-7-