Used as a key intermediate in the synthesis of azo dyes and pigments, providing vibrant coloration in textile and printing industries. Also employed in the preparation of functional organic materials for electrochemical sensors due to its redox-active aromatic amine structure. Its hydroxyl and amine groups allow for easy chemical modification, making it valuable in developing photoresists and specialty polymers. Additionally, it serves as a derivatizing agent in analytical chemistry to enhance detection of carbonyl compounds.