InChI=1S/C21H30O9/c1-9(2)10-4-5-11-13(22)6-14(23)12(21(11,3)7-10)8-29-20-17(26)15(24)16(25)18(30-20)19(27)28/h5,10,12-13,15-18,20,22,24-26H,1,4,6-8H2,2-3H3,(H,27,28)/t10?,12?,13?,15?,16?,17?,18?,20?,21-/m0/s1