Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of active pharmaceutical ingredients (APIs) targeting central nervous system disorders. Its protected piperazine core allows for selective modification, making it valuable in constructing complex drug molecules. Commonly employed in medicinal chemistry for structure-activity relationship (SAR) studies due to the halogenated aromatic group, which can influence binding affinity and metabolic stability. Suitable for coupling reactions in the preparation of kinase inhibitors and receptor modulators.