Used in organic synthesis as an intermediate for pharmaceutical compounds, particularly in the development of nitrogen-containing heterocycles. Shows potential in the preparation of hydrazone-based bioactive molecules due to the presence of the phenylhydrazone functional group. Commonly employed in medicinal chemistry research for constructing peptidomimetics and enzyme inhibitors. Also utilized in the design of novel piperazine derivatives with possible central nervous system activity. Serves as a building block in combinatorial chemistry for drug discovery.