InChI=1S/C25H42O4/c1-3-4-5-6-7-8-9-10-11-12-13-14-22(26)20-23(27)17-15-21-16-18-24(28)25(19-21)29-2/h16,18-19,22,26,28H,3-15,17,20H2,1-2H3