InChI=1S/C21H30O9/c1-9(2)21(28)6-5-11-13(7-12(22)10(3)20(11,4)8-21)29-19-16(25)14(23)15(24)17(30-19)18(26)27/h5,10,13-17,19,23-25,28H,1,6-8H2,2-4H3,(H,26,27)/t10?,13?,14?,15?,16?,17?,19?,20-,21?/m1/s1