Used as a versatile ligand in coordination chemistry, it facilitates the stabilization of metal complexes, particularly in catalytic processes. Its phosphonic ester groups enable strong binding to metal surfaces, making it valuable in surface modification and functionalization of nanoparticles. In materials science, it is employed to create self-assembled monolayers on substrates, enhancing properties like corrosion resistance and wettability. Additionally, it serves as a precursor in the synthesis of phosphonate-based polymers, which are utilized in applications such as drug delivery systems and ion-exchange membranes. Its bifunctional structure also allows it to act as a crosslinking agent in polymer chemistry, improving the mechanical and thermal stability of materials.