InChI=1S/C30H56O4/c1-3-5-7-9-11-13-15-16-18-20-22-24-28-34-30(32)26-25-29(31)33-27-23-21-19-17-14-12-10-8-6-4-2/h5,7H,3-4,6,8-28H2,1-2H3/b7-5+