Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) that require piperazine-based structures. Its protected amine group allows for selective reactions in multi-step organic syntheses, making it valuable in drug discovery. Commonly employed in the preparation of kinase inhibitors, CNS-active compounds, and other bioactive molecules where a functionalized piperazine moiety is needed. Also utilized in the creation of peptide mimetics and as a building block in combinatorial chemistry for high-throughput screening libraries.