Used as a chelating agent in catalytic processes, particularly in asymmetric synthesis where stereochemical control is critical. Its tetraethyl ester groups enhance solubility in organic solvents, making it suitable for homogeneous catalysis. The compound acts as a ligand precursor, forming stable complexes with transition metals such as palladium, ruthenium, or rhodium, which are employed in enantioselective transformations like hydrogenation, C–C bond formation, and epoxidations. Due to its rigid backbone and defined stereochemistry, it helps achieve high enantioselectivity in the synthesis of chiral molecules, important in pharmaceutical and fine chemical industries. The phosphonic acid ester functionality allows for further modification or immobilization on solid supports for use in recyclable catalytic systems.