Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of receptor antagonists and central nervous system agents. Its structure supports the creation of bioactive molecules due to the presence of both piperazine and carboxylic acid functional groups, enabling amide bond formation and improved solubility. Commonly employed in medicinal chemistry for optimizing drug candidates targeting neurological and psychiatric disorders. Also utilized in the preparation of radiolabeled derivatives for receptor binding studies.