InChI=1S/C21H34O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-18-21(23)19-17-20-22/h6-7,9-10,16-19,22H,2-5,8,11-15,20H2,1H3/b7-6+,10-9+,18-16+,19-17+