Used as a key intermediate in the synthesis of heterocyclic compounds, particularly in the preparation of aniline-derived dyes and pigments. It serves in analytical chemistry as a derivatizing agent for carbonyl compounds, enhancing detection in spectrophotometric and chromatographic methods. Also employed in polymer chemistry to modify resin properties, improving thermal stability and cross-linking efficiency in coatings and adhesives. Its structure supports conjugated systems, making it valuable in the development of organic semiconductors and photoactive materials.