InChI=1S/C19H28O2/c1-2-19-10-9-15-14-6-4-13(20)11-12(14)3-5-16(15)17(19)7-8-18(19)21/h11,14-18,21H,2-10H2,1H3/t14-,15+,16+,17-,18-,19-/m0/s1