3-(2,3-Epoxypropoxy)propyltriethoxysilane is a chemical compound that is used as a coupling agent and adhesion promoter in various industrial applications. Its chemical structure consists of a triethoxysilane group attached to a molecule containing a 3-(2,3-epoxypropoxy)propyl group. This compound is known for its ability to improve the adhesion between organic polymers and inorganic surfaces by forming strong bonds due to its silane functionality that can react with both types of surfaces. It is commonly utilized in coatings, adhesives, sealants, and composite materials to enhance their properties and performance.