Erioglaucine disodium salt solution is widely used as a blue dye in various industries. In the food industry, it serves as a coloring agent for candies, beverages, and desserts, providing a vibrant blue hue. It is also utilized in pharmaceuticals for coloring tablets, capsules, and syrups to enhance their visual appeal and identification. In biological research, it is employed as a staining agent in microscopy to highlight specific structures or cells. Additionally, it finds application in cosmetics, such as in shampoos, soaps, and lotions, to add color and improve product aesthetics. Its water-soluble nature makes it a versatile choice for these applications.