N-(2-Aminoethyl)-3-aminopropyltriethoxysilane is a colorless to pale yellow liquid with an amine-like odor. It acts as an adhesion promoter, coupling agent, silane crosslinker, surface modifier, and surface treatment agent. It enhances adhesion between different materials, improves bonding in various systems, participates in crosslinking reactions, and provides a reactive amino-functionalized surface. It finds applications in industries such as adhesives, coatings, composites, electronics, fiber-reinforced plastics, glass, rubber, textiles, and leather.