Used in organic synthesis as an intermediate for pharmaceuticals and agrochemicals. Serves as a building block in the preparation of conjugated materials for optoelectronic devices, such as organic light-emitting diodes (OLEDs) and organic semiconductors. Its aromatic and heterocyclic structure enables good electron delocalization, making it valuable in the development of fluorescent dyes and sensors. Also employed in cross-coupling reactions to construct complex thiophene-based molecules with potential biological activity.