InChI=1S/C19H26O2/c1-5-6-13-9-16(20)18-15-11-19(4,21-17(18)10-13)8-7-14(15)12(2)3/h9-10,14-15,20H,2,5-8,11H2,1,3-4H3/t14-,15+,19+/m0/s1