Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) for central nervous system (CNS) drugs and antipsychotic medications. Its functional groups allow for selective cross-coupling reactions, making it valuable in constructing complex aromatic frameworks in medicinal chemistry. Also employed in the preparation of agrochemicals and fine chemicals where halogenated aromatic aldehydes are required for further derivatization. Its aldehyde group enables condensation reactions to form Schiff bases or heterocycles, useful in drug discovery and material science.