4-Cyano-2-methoxybenzoic acid is primarily used as an intermediate in the synthesis of various pharmaceuticals and organic compounds. It plays a key role in the development of active pharmaceutical ingredients (APIs), particularly in the production of anti-inflammatory and analgesic drugs. Additionally, it is utilized in the creation of specialty chemicals for research and development purposes, aiding in the study of molecular structures and chemical reactions. Its unique structure makes it valuable for modifying and enhancing the properties of target molecules in medicinal chemistry.