Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of bioactive molecules requiring stereochemical control. Its hydroxyl and ester functionalities allow for selective transformations, making it valuable in asymmetric synthesis. Commonly employed in the preparation of enzyme inhibitors and prodrugs due to its biodegradable ester groups and ability to enhance solubility. Also utilized in the design of biocompatible polymers and as an intermediate in the manufacture of agrochemicals and specialty chemicals where optical purity is critical.