Used as an intermediate in the synthesis of anthraquinone dyes and pigments, particularly for textile and leather coloring. It imparts good light and wash fastness to fabrics. Also employed in the production of certain laxative pharmaceuticals due to its ability to stimulate bowel motility. Shows potential in organic electronics as a component in dye-sensitized solar cells owing to its conjugated structure and light absorption properties. Additionally, it serves as a reagent in analytical chemistry for detecting metal ions through colorimetric changes.