Used as a key intermediate in the synthesis of fluorescent dyes and optoelectronic materials due to its strong electron-accepting properties and ability to form conjugated systems. Commonly employed in the development of organic semiconductors, sensors, and luminescent probes for biological imaging. Its bromine functionality allows for easy functionalization via cross-coupling reactions, making it valuable in medicinal chemistry for building complex heterocyclic compounds. Also applied in the preparation of fluorescent tags for detecting biomolecules and in the design of solar cell materials.