Used in the synthesis of pharmaceuticals and agrochemicals due to its heterocyclic structure, enabling the development of active ingredients with enhanced biological activity. Serves as a building block in organic synthesis, particularly in the preparation of thiophene-based derivatives for use in materials science, including conductive polymers and organic semiconductors. Also employed in the production of dyes and pigments, where it contributes to color stability and light absorption properties. Its carboxylic acid functionality allows for easy derivatization into esters, amides, and other functional groups for tailored applications.