(S)-2-Methoxypropanoic acid is primarily utilized in the synthesis of chiral compounds, particularly in the pharmaceutical industry. It serves as a key intermediate in the production of various enantiomerically pure drugs, enhancing their efficacy and reducing side effects. Additionally, it is employed in organic synthesis to create complex molecules with specific stereochemistry, which is crucial for developing advanced materials and fine chemicals. Its role in asymmetric synthesis also makes it valuable in research and development of new therapeutic agents and bioactive compounds.