2-(3-Phenoxyphenyl)propanoic acid is the core structure of fenoprofen, a nonsteroidal anti-inflammatory drug (NSAID) in the profen class. It is used directly in pharmaceutical formulations for its analgesic, antipyretic, and anti-inflammatory properties. Additionally, it serves as a key intermediate in the synthesis of related profen-class medications and derivatives, enabling chiral optimization to improve biological activity, selectivity, and pharmacokinetic profiles in drug development research.