InChI=1S/C25H40/c1-8-22(4)14-10-16-24(6)18-12-20-25(7)19-11-17-23(5)15-9-13-21(2)3/h8,13,16-17,20H,1,4,9-12,14-15,18-19H2,2-3,5-7H3/b23-17+,24-16+,25-20+