InChI=1S/C30H58O4/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23-24-25-26-30(33)34-28-29(32)27-31/h17-18,29,31-32H,2-16,19-28H2,1H3/b18-17-/t29-/m1/s1