Used as a key reagent in asymmetric synthesis, particularly in the preparation of chiral sulfoxides, which are important intermediates in pharmaceutical and agrochemical production. It is also employed in the synthesis of sulfinamides, which serve as versatile building blocks in organic chemistry. Additionally, it is utilized in the development of ligands for catalysis and in the modification of peptides and proteins to study their structure and function. Its role in creating stereochemically pure compounds makes it valuable in drug discovery and development.