InChI=1S/C30H58O3/c1-29(31)27-25-23-21-19-17-15-13-11-9-7-5-3-2-4-6-8-10-12-14-16-18-20-22-24-26-28-30(32)33/h13,15,29,31H,2-12,14,16-28H2,1H3,(H,32,33)/b15-13+