Disperse Red 13 is primarily used as a dye in the textile industry, especially for synthetic fibers like polyester, nylon, and acetate. It is valued for its ability to produce vibrant red shades with good colorfastness, ensuring the dye remains stable during washing and exposure to light. This dye is applied through high-temperature dyeing processes, where it disperses evenly into the fibers, resulting in uniform coloration. Additionally, Disperse Red 13 is sometimes utilized in research and development for studying dyeing techniques and improving dye formulations. Its versatility and effectiveness make it a popular choice for applications requiring durable and bright red hues in textiles.