Used as a resolving agent in the separation of racemic mixtures, particularly for chiral amines and alcohols. It forms diastereomeric salts with enantiomers, allowing their purification through crystallization. Commonly applied in pharmaceutical synthesis to obtain optically pure compounds. Also serves as a chiral selector in chromatography for enantiomer separation. Additionally, it is utilized in asymmetric synthesis and as a catalyst in certain organic reactions.