Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) that require functionalized piperazine moieties. Its structure allows for easy modification and conjugation, making it valuable in drug design for central nervous system agents, antipsychotics, and other bioactive molecules. Commonly employed in medicinal chemistry for building blocks where a carboxylic acid group is needed for amide bond formation or salt generation to improve solubility. Also utilized in research settings for the preparation of novel compounds in structure-activity relationship (SAR) studies.