InChI=1S/C24H46O3/c25-23-21-19-17-15-13-11-9-7-5-3-1-2-4-6-8-10-12-14-16-18-20-22-24(26)27/h5,7,25H,1-4,6,8-23H2,(H,26,27)/b7-5-