Used as an intermediate in the synthesis of dyes and pigments, particularly azo dyes, due to its aromatic amine groups that readily undergo diazotization and coupling reactions. Also employed in the production of pharmaceuticals where its structure serves as a building block for active ingredients targeting inflammatory or central nervous system disorders. Its bifunctional nature (amino and carboxylic acid groups) allows for peptide-like linkages in specialty organic synthesis. Additionally, it finds use in the development of photographic chemicals and certain polymer stabilizers.