Used in organic electronics due to its extended π-conjugation and ability to form stable radical species. Commonly employed in the synthesis of conjugated polymers and small molecules for organic light-emitting diodes (OLEDs) and organic photovoltaics (OPVs). Its ethynyl groups allow for efficient coupling reactions, enabling the construction of complex aromatic frameworks. Also explored as a building block in metal-organic frameworks (MOFs) and covalent organic frameworks (COFs) for optoelectronic and sensing applications. Shows promise in developing fluorescent sensors and blue-emitting materials.