Used as a precursor in the synthesis of phosphine ligands for catalytic applications, particularly in transition metal-catalyzed reactions such as cross-coupling and hydrogenation. Its oxidized phosphine groups can be reduced to form diphosphine ligands that coordinate with metals like palladium, platinum, or rhodium. These complexes enhance catalytic activity and selectivity in industrial and fine chemical processes. Also employed in materials science for designing organophosphorus-based functional materials due to its thermal stability and ligand architecture.