2-Fluoro-4-formylbenzoic acid is primarily used as a versatile intermediate in organic synthesis, particularly in the production of pharmaceuticals and agrochemicals. Its functional groups, including the formyl and carboxylic acid moieties, make it a valuable building block for constructing complex molecules. In medicinal chemistry, it is employed in the development of drug candidates, where the fluorine atom can enhance bioavailability and metabolic stability. Additionally, it serves as a precursor in the synthesis of dyes, pigments, and specialty chemicals. Its reactivity allows for further modifications, enabling the creation of diverse compounds with specific properties for industrial and research applications.