Methyl nonadecanoate is primarily used in the research and development of organic synthesis and material science. It serves as a key intermediate in the production of specialty chemicals and is often employed in the formulation of lubricants and coatings due to its stability and hydrophobic properties. Additionally, it finds application in the study of lipid metabolism and as a reference standard in analytical chemistry for the identification and quantification of fatty acid esters. Its role in the synthesis of biodegradable polymers and surfactants is also noteworthy, contributing to advancements in environmentally friendly materials.