Sudan I is primarily used as a coloring agent in various industrial applications. It is commonly found in products like waxes, polishes, and oils to impart a red or orange hue. In the past, it was also used in some food products to enhance color, but its use in food has been banned in many countries due to its potential carcinogenic effects. Additionally, Sudan I is utilized in laboratories as a dye for staining and identifying substances in scientific research. Its application is now largely restricted to non-food items, with strict regulations in place to ensure safety.