InChI=1S/C21H32O9/c1-9(8-29-20-17(26)15(24)16(25)18(30-20)19(27)28)11-4-5-12-14(23)6-13(22)10(2)21(12,3)7-11/h5,10-11,13-18,20,22-26H,1,4,6-8H2,2-3H3,(H,27,28)/t10?,11?,13?,14?,15?,16?,17?,18?,20?,21-/m1/s1