Linoleic Acid Methyl Ester Mix, Cis/trans, 10 mg/mL in methylene chloride (as total weight) cis-9,cis-12-Octadecadienoic acid methyl ester ~ 10 % (w/w) cis-9,trans-12-Octadecadienoic acid methyl ester ~ 20 % (w/w) trans-9,cis-12-Octadecadienoic acid methyl ester ~ 20 % (w/w) trans-9, trans-12-Octadecadienoic methyl ester ~ 50 % (w/w)