Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the production of active pharmaceutical ingredients (APIs) where stereochemistry plays a critical role in drug efficacy. Its hydroxyl and chlorine functional groups allow for selective chemical transformations, making it valuable in creating intermediates for cardiovascular drugs, central nervous system agents, and anti-inflammatory compounds. Commonly employed in asymmetric synthesis routes due to its enantiomeric purity, enabling the development of more potent and specific therapeutics.