Used as a key intermediate in organic synthesis, particularly in the preparation of optoelectronic materials. Commonly employed in the development of hole-transport materials for organic light-emitting diodes (OLEDs) and perovskite solar cells due to its excellent thermal stability and favorable electronic properties. Its iodinated structure allows for further functionalization via cross-coupling reactions, making it valuable in the construction of complex conjugated systems for semiconductor applications. Also explored in photoredox catalysis and as a building block in the synthesis of fluorescent dyes and sensors.