InChI=1S/C31H42O2/c1-23(13-9-10-14-24(2)17-12-18-26(4)28(6)32)15-11-16-25(3)19-20-30-27(5)21-29(33)22-31(30,7)8/h9-20,29,33H,21-22H2,1-8H3/b10-9-,15-11+,17-12+,20-19+,23-13+,24-14+,25-16-,26-18+