Used as a key intermediate in the synthesis of fluorescent dyes and probes due to its rigid polycyclic structure and electron-withdrawing groups. Its bromo and nitro functionalities allow for further functionalization via cross-coupling reactions or reduction, making it valuable in developing fluorophores for bioimaging and sensor applications. Also employed in the preparation of organic semiconductors and optoelectronic materials where extended conjugation and electron deficiency enhance performance in light-emitting devices or photodetectors.