1 JH2 Methyl (2e,6e)-9-[(2r,3s)-3-ethyl-3-methyloxiran-2-yl]-3,7-dimethylnona-2,6-dienoate 1.000 2 JH3 Methyl (2e,6e)-9-[(2r)-3,3-dimethyloxiran-2-yl]-3,7-dimethylnona-2,6-dienoate 0.950