Widely used in the dye and pigment industry as an intermediate for producing azo dyes, particularly for red and orange shades. It contributes to the synthesis of direct and acid dyes applied in textile coloring, paper printing, and leather staining due to its strong chromophoric properties. Also employed in the manufacture of fluorescent whitening agents for detergents and paper. Its sulfonate group enhances water solubility, making it suitable for aqueous-based dyeing processes. Additionally, it serves as a chemical building block in the production of certain pharmaceuticals and agrochemicals where aromatic amine structures are required.