Used as a key intermediate in the synthesis of organic semiconductors and optoelectronic materials. Its brominated aromatic structure enables coupling reactions, such as Suzuki or Heck reactions, to build complex conjugated systems for use in organic light-emitting diodes (OLEDs) and field-effect transistors (OFETs). Also employed in the development of fluorescent dyes and probes due to its rigid naphthalene backbone, which supports strong photoluminescent properties. Its ester functionality allows for further derivatization, making it valuable in medicinal chemistry for constructing bioactive molecules and in materials science for designing liquid crystals.