Used in organic synthesis, particularly in the development of pharmaceuticals and functional materials. Serves as an intermediate in the preparation of bioactive molecules due to the presence of both amino and bromo functional groups, which allow for further chemical modifications through coupling reactions or nucleophilic substitutions. Applied in the research of fluorescent dyes and optoelectronic materials because of its fluorenone backbone, which exhibits favorable photophysical properties. Also explored in the synthesis of conjugated polymers and small-molecule sensors where halogenated fluorenone derivatives enhance electron-accepting characteristics.