Used as an intermediate in the synthesis of chiral compounds, particularly in pharmaceuticals and fine chemicals. Its asymmetric structure makes it valuable in producing enantiomerically pure drugs, where the (S)-configuration plays a critical role in biological activity. Commonly employed in ring-opening reactions to form functionalized polymers or as a building block in the preparation of biodegradable polycarbonates. Also finds use in specialty solvents and as a chiral auxiliary in organic synthesis.