Used as a chiral derivatizing agent in the resolution of enantiomers, particularly in the analysis of chiral amines and alcohols. Its bulky naphthyl group enhances stereoselectivity in chromatographic separations, making it valuable in HPLC and NMR for determining enantiomeric purity. Also employed in asymmetric synthesis as a chiral auxiliary or resolving agent for racemic mixtures. Commonly applied in pharmaceutical research where enantiomeric separation is critical for drug efficacy and safety.