Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) where stereochemistry plays a critical role in biological activity. It serves as an intermediate in the production of drugs targeting the central nervous system, including certain antidepressants and antipsychotics. Its structure is also utilized in the creation of agrochemicals, such as herbicides and insecticides, where the (S)-enantiomer provides enhanced selectivity and efficacy. Additionally, it functions as a ligand or auxiliary in asymmetric synthesis, enabling the formation of complex molecules with high enantiomeric purity.