Used as a key intermediate in the synthesis of fluorescent dyes and bioimaging agents due to its strong electron-withdrawing structure and halogen functionality. The aldehyde group allows for easy conjugation with amines or hydrazines, enabling labeling of biomolecules for detection in biological systems. Its fluorinated and brominated aromatic core enhances photostability and enables further functionalization via cross-coupling reactions, making it valuable in the development of optoelectronic materials and sensors. Also employed in medicinal chemistry as a building block for heterocyclic compounds with potential biological activity.