InChI=1S/C28H44O2/c1-19(2)20(3)9-11-22(5)28(30)17-15-26-23(8-7-16-27(26,28)6)12-13-24-18-25(29)14-10-21(24)4/h9,11-13,19-20,22,25-26,29-30H,4,7-8,10,14-18H2,1-3,5-6H3/b11-9+,23-12+,24-13-/t20-,22+,25-,26-,27-,28-/m0/s1