Solvent Red 26 is primarily used as a dye in various industrial applications. It is commonly employed in the coloring of plastics, resins, and synthetic fibers, providing a vibrant red hue to the finished products. Additionally, it is utilized in the formulation of inks, particularly for printing on non-porous surfaces like plastics and metals. The dye is also found in some types of waxes and polishes, where it imparts a rich red color. In the petroleum industry, Solvent Red 26 is sometimes used as a marker dye to distinguish between different types of fuels or lubricants. Its stability and solubility in organic solvents make it a versatile choice for these applications.