Used in chiral resolution to separate enantiomers of basic organic compounds, particularly in the pharmaceutical industry. It forms diastereomeric salts with racemic mixtures of chiral amines, allowing for the isolation of optically pure enantiomers through crystallization. Commonly employed in the purification of intermediates for drug synthesis, including active pharmaceutical ingredients where stereochemistry is critical. Also utilized in asymmetric synthesis and as a chiral derivatizing agent in analytical chemistry.