InChI=1S/C20H34O2/c1-7-14(2)8-9-16-19(5)12-11-17(21)18(3,4)15(19)10-13-20(16,6)22/h7-8,15-17,21-22H,1,9-13H2,2-6H3/b14-8+/t15-,16+,17+,19-,20+/m1/s1