Used primarily in the dyeing of synthetic fibers such as polyester and acetate, Disperse Yellow 42 provides bright yellow shades with good lightfastness and wash fastness. It is commonly applied in high-temperature dyeing processes and is suitable for use in textile printing. The dye is also employed in the coloring of plastic materials and films where a stable yellow hue is required. Its low water solubility makes it ideal for dispersion-based applications in industrial settings.