Alizarin is widely used as a dye in the textile industry, particularly for coloring fabrics like cotton, wool, and silk. It produces vibrant shades of red, orange, and purple, making it popular for creating long-lasting and visually appealing textiles. In addition to its use in textiles, alizarin is employed in biological and histological staining, where it helps identify calcium deposits in tissues, serving as a valuable tool in medical and scientific research. It is also used as a pH indicator in chemical analysis, changing color based on the acidity or basicity of solutions. Alizarin is utilized in the production of inks, paints, pigments, and occasionally in cosmetics for natural coloring effects, contributing to its versatility in various artistic, industrial, and analytical applications.