Ponceau 2R is widely used as a red food dye in the food industry to enhance the color of products such as candies, desserts, and beverages. It is also employed in cosmetics, particularly in lipsticks and blushes, to provide a vibrant red hue. In the textile industry, it serves as a dye for fabrics, offering a bright red coloration. Additionally, Ponceau 2R is utilized in biological staining for microscopy, helping to highlight specific structures in tissue samples. Its strong coloring properties make it a versatile dye across various applications.