Sudan I is primarily used as a dye in various industrial applications. It is commonly employed in coloring solvents, oils, waxes, and polishes, providing a vibrant red or orange hue. In the past, it was also used in some food products to enhance color, but its use in food is now banned in many countries due to health concerns. Additionally, Sudan I finds application in laboratories as a biological stain for microscopy, aiding in the visualization of specific cellular components. Despite its utility, its use is strictly regulated due to its potential carcinogenic properties.