Methyl 9,10-epoxystearate is widely used as a plasticizer and stabilizer in the production of polymers, particularly PVC, to enhance flexibility and durability. It also serves as a key intermediate in the synthesis of lubricants and surfactants, improving their performance and stability. In the coatings industry, it is utilized to modify resin properties, providing better adhesion and resistance to environmental factors. Additionally, it finds application in the formulation of bio-based products, contributing to sustainable and eco-friendly material development. Its epoxy group makes it valuable in cross-linking reactions, enhancing the mechanical properties of various industrial materials.