Used as a key intermediate in the synthesis of conjugated polymers for organic electronics, particularly in organic photovoltaics (OPVs) and organic light-emitting diodes (OLEDs). Its thienyl groups enable strong π-conjugation and enhance charge transport properties in the resulting materials. Also employed in the preparation of donor-acceptor type copolymers to tune bandgap and improve solar cell efficiency. Additionally, serves as a building block in fluorescent dyes and sensors due to its rigid, planar structure and optical activity.