Used primarily as a chiral derivatizing agent in the resolution of enantiomers, especially in the separation of racemic mixtures of amines and alcohols. Its reactivity with nucleophiles allows the formation of diastereomeric ureas or carbamates, which can be easily separated by conventional techniques such as chromatography or crystallization. Widely applied in asymmetric synthesis and pharmaceutical research for obtaining enantiomerically pure compounds. Also serves as an intermediate in the preparation of chiral auxiliaries, catalysts, and optically active isocyanates for fine chemical manufacturing.