Used as a chiral building block in organic synthesis, particularly in the pharmaceutical industry for the preparation of active pharmaceutical ingredients (APIs). Its epoxide ring allows for regioselective and stereoselective ring-opening reactions, enabling the introduction of functional groups in a controlled manner. Commonly employed in the synthesis of beta-blockers and other cardiovascular drugs due to its ability to maintain stereochemical integrity during transformations. Also utilized in the production of fine chemicals and specialty polymers where optical purity is critical.