Used as an intermediate in organic synthesis, particularly in the preparation of fluorescent dyes and optical brighteners due to the naphthalene core's strong chromophoric properties. The bromine atom allows for further functionalization via cross-coupling reactions such as Suzuki or Heck reactions, making it valuable in the development of specialty chemicals and potential pharmaceutical agents. The carboxylic acid group enables conjugation to other molecules, useful in bioconjugation or polymer modification applications. Also investigated for use in liquid crystal formulations and as a building block in materials science for optoelectronic devices.