Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of beta-blockers and other cardiovascular agents. Its epoxide ring allows for selective ring-opening reactions, enabling the introduction of specific functional groups in a stereocontrolled manner. Commonly employed in organic synthesis to introduce the 2-nitrophenoxy moiety while maintaining enantiomeric purity. Also utilized in the preparation of enzyme inhibitors and receptor ligands where precise spatial orientation of substituents is critical for biological activity.