InChI=1S/C25H36O2/c1-19(2)8-5-9-20(3)10-6-11-21(4)12-7-13-24-16-14-22-18-23(26)15-17-25(22)27-24/h8,10,12,15,17-18,24,26H,5-7,9,11,13-14,16H2,1-4H3/b20-10+,21-12+