Used as a precursor in organophosphorus chemistry, particularly in the synthesis of diphosphine ligands for transition metal catalysts. These ligands play a key role in homogeneous catalysis, including hydrogenation and hydroformylation reactions. Its reactivity allows for the construction of chelating diphosphine frameworks that can be tailored for specific catalytic applications in pharmaceutical and fine chemical industries. Also employed in materials science for developing phosphorus-containing polymers and flame retardants due to its ability to introduce phosphorus groups into molecular structures.