InChI=1S/C30H58O3/c1-2-3-4-5-6-17-20-23-26-29(31)27-24-21-18-15-13-11-9-7-8-10-12-14-16-19-22-25-28-30(32)33/h23,26,29,31H,2-22,24-25,27-28H2,1H3,(H,32,33)/b26-23+