Used primarily in organic electronics as a key intermediate for conductive polymers. Its fused heterocyclic structure supports electron delocalization, making it suitable for use in the synthesis of organic semiconductors. Commonly applied in the development of organic field-effect transistors (OFETs) and organic photovoltaics (OPVs) due to its stability and charge-transport properties. Also explored as a building block in electrochromic materials and polymer-based sensors. Its thioether linkage enhances solubility and film-forming ability, beneficial for solution-processing techniques in device fabrication.