Used as an intermediate in organic synthesis, particularly in the preparation of phosphonate-based compounds that serve as analogs of phosphate esters in medicinal chemistry. It plays a role in the development of pharmaceuticals, including antiviral and anticancer agents, due to its ability to participate in Horner-Wadsworth-Emmons reactions for forming carbon-carbon bonds. Also utilized in the synthesis of bioactive molecules and enzyme inhibitors where the phosphonate group mimics natural phosphate intermediates. Its bromo substituent allows for further functionalization via cross-coupling reactions, making it a versatile building block in drug discovery and agrochemical research.