InChI=1S/C20H28O10/c1-11(9-22)19(26)28-10-15-16(23)17(24)18(25)20(30-15)29-13-6-5-12(4-3-7-21)8-14(13)27-2/h3-6,8,11,15-18,20-25H,7,9-10H2,1-2H3/b4-3+/t11?,15-,16-,17+,18-,20-/m1/s1