InChI=1S/C21H32O9/c1-11(2)9-13(22)10-21(4,12-5-7-20(3,28)8-6-12)30-19-16(25)14(23)15(24)17(29-19)18(26)27/h5,7,9,12,14-17,19,23-25,28H,6,8,10H2,1-4H3,(H,26,27)