Used as an intermediate in the synthesis of dyes and fluorescent compounds due to its ability to undergo coupling reactions and halogen displacement. Commonly employed in the production of optical brighteners for textiles and paper. Also serves as a building block in the development of pharmaceuticals, particularly in the creation of naphthyl-based derivatives with biological activity. Its structure supports use in organic semiconductors and photochemical materials. Frequently utilized in research for labeling and derivatization in analytical chemistry.