Used as a key intermediate in the synthesis of pharmaceuticals and agrochemicals due to its dual functionality—amine and phosphine oxide groups. The compound serves in catalysis, particularly in transition metal-catalyzed reactions, where it acts as a ligand precursor. Its structure allows for easy modification in the development of novel phosphine-based ligands for asymmetric synthesis. Also employed in materials science for creating flame retardants, leveraging the phosphine oxide moiety’s thermal stability and ability to suppress combustion. Additionally, it finds use in polymer chemistry as a building block for functionalized polymers with enhanced electronic or thermal properties.