Used as an intermediate in the synthesis of azo dyes and pigments, particularly for producing yellow, orange, and red shades with good light and wash fastness. Commonly employed in the textile, leather, and printing industries for dyeing and coloring applications. Also serves as a coupling component in the production of lake pigments for inks and coatings. Additionally, it finds use in analytical chemistry as a reagent for the detection of certain metal ions due to its chelating properties.