This chemical is primarily used as an intermediate in the synthesis of dyes and pigments, particularly in the production of azo dyes. It plays a crucial role in creating vibrant and stable colors for textiles, paper, and other materials. Additionally, it is utilized in the manufacture of certain pharmaceuticals, where it serves as a building block for active pharmaceutical ingredients. Its sulfonic acid group enhances solubility, making it valuable in formulations requiring water-soluble compounds. In industrial applications, it is also employed in the production of specialty chemicals, contributing to the development of surfactants and other functional additives.