InChI=1S/C28H42O4/c1-19(2)11-14-27(30)22(5)10-8-9-20(3)15-25(29)16-21(4)12-13-24-18-26(32-7)17-23(6)28(24)31/h10-12,15,17-18,25,27,29-31H,8-9,13-14,16H2,1-7H3/b20-15+,21-12+,22-10+/t25-,27+/m0/s1