Used as a key intermediate in the synthesis of fluorescent dyes and optical brighteners due to its aromatic structure and reactive amino and ester groups. Its derivatives are commonly found in materials requiring UV light absorption and visible light emission, such as in textile and paper industries. Also employed in the preparation of specialty polymers and sensors where amino-functionalized aromatic compounds enhance sensitivity or optical properties. Additionally, it serves as a building block in pharmaceutical research for constructing heterocyclic compounds with potential biological activity.