Used primarily in research and analytical studies of fatty acids and lipid metabolism. It can also be used as a reference standard in chromatography and biochemical analysis.

Used to study the effects and behavior of trans-unsaturated fatty acids in biological and chemical systems. It is also useful for research involving lipid composition and fatty-acid transformations.

Elaidic acid is a trans monounsaturated fatty acid. It is the trans isomer of oleic acid and is commonly found as a component of partially hydrogenated vegetable oils.