InChI=1S/C28H56O2/c1-2-3-4-5-6-7-8-9-10-11-13-16-19-22-25-28(30)26-23-20-17-14-12-15-18-21-24-27-29/h23,26,28-30H,2-22,24-25,27H2,1H3/b26-23+