Used primarily in the dye and pigment industry, this compound serves as an intermediate in the synthesis of azo dyes, which are widely applied in textiles, paper, and leather coloring. Its sulfonic acid groups enhance solubility in water, making it valuable for creating vibrant and stable dyes. Additionally, it is utilized in the production of colorimetric indicators and in analytical chemistry for detecting specific ions or compounds due to its ability to form colored complexes. Its role in the development of light-sensitive materials also finds applications in photographic processes.