Used as a fluorescent probe in biochemical assays due to its strong emission properties when bound to specific biomolecules. It serves as a building block in the synthesis of kinase inhibitors and other pharmaceutical agents targeting cancer and inflammatory diseases. Also employed in the development of organic semiconductors for optoelectronic devices because of its electron-rich thiazole core and extended aromatic system. Its naphthyl group enhances lipophilicity, making it useful in designing compounds with improved cell membrane permeability.