(S)-(-)-2-Phenylpropionic acid is widely used in the pharmaceutical industry as a key intermediate in the synthesis of nonsteroidal anti-inflammatory drugs (NSAIDs). It is particularly important in the production of enantiomerically pure compounds, which are essential for developing medications with higher efficacy and fewer side effects. Additionally, it serves as a chiral building block in organic synthesis, enabling the creation of complex molecules with specific stereochemical properties. Its applications extend to the development of agrochemicals and fine chemicals, where its structural framework is utilized to design compounds with targeted biological activities.