Used as an intermediate in the synthesis of dyes and pigments, particularly for azo dyes, due to its aromatic amine and carboxylic acid functional groups. Its structure allows for coupling reactions and metal coordination, making it suitable for developing colorants with good light and wash fastness. Also investigated for use in polymer chemistry to enhance thermal stability and mechanical properties. Shows potential in pharmaceutical research as a building block for bioactive molecules, especially those targeting enzyme inhibition. Its rigid naphthalene core supports applications in materials science, including organic semiconductors and sensors.