InChI=1S/C21H30O9/c1-8(2)10-5-6-11-17(14(24)12(22)9(3)21(11,4)7-10)29-20-16(26)13(23)15(25)18(30-20)19(27)28/h6,9-10,13-18,20,23-26H,1,5,7H2,2-4H3,(H,27,28)/t9?,10?,13?,14?,15?,16?,17?,18?,20?,21-/m1/s1