Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of bioactive molecules and drug candidates. Its structure allows for further functionalization, making it valuable in constructing complex piperazine-based derivatives. Commonly employed in medicinal chemistry for creating analogs with potential neurological, anti-inflammatory, or anticancer activity. The aldehyde group enables reactions such as reductive amination or condensation, facilitating the introduction of various substituents. Also utilized in the preparation of receptor ligands and enzyme inhibitors due to the piperazine moiety's prevalence in pharmacologically active substances.