Used as a chiral derivatizing agent in the synthesis of enantiomerically pure compounds, particularly in pharmaceuticals. It is also employed in the resolution of racemic mixtures, aiding in the separation of enantiomers for analytical purposes. Additionally, it serves as a reagent in the preparation of sulfonamides, which are important in drug development. Its application extends to asymmetric synthesis, where it helps in creating compounds with high enantiomeric purity.