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. Its amine functionality and chiral center make it valuable in asymmetric synthesis and the preparation of enantiomerically pure compounds. Commonly employed in the production of central nervous system agents and other therapeutic molecules requiring high enantiomeric purity. Also utilized in the preparation of intermediates for decongestants and bronchodilators due to its structural similarity to known bioactive amines.