InChI=1S/C25H40O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-23-20-24(26)22-25(27)21-23/h6-7,9-10,20-22,26-27H,2-5,8,11-19H2,1H3/b7-6+,10-9+