Used as a key intermediate in the synthesis of high-performance dyes and pigments, particularly in the production of naphthalene-based disperse dyes for polyester and modified polyester fibers. Its sulfonic acid groups enhance water solubility, making it suitable for aqueous-based dyeing processes. Also employed in the formulation of specialty polymers and as a building block in organic synthesis where aromatic rigidity and polar functional groups are required. Shows potential in metal-organic frameworks (MOFs) due to its rigid structure and multiple binding sites.