Direct Scarlet B is widely used in the textile industry for dyeing cotton, wool, silk, and other natural fibers. Its vibrant red hue makes it a popular choice for producing bright and long-lasting colors on fabrics. Additionally, it is employed in the paper industry to color paper products, providing consistent and attractive shades. The dye is also utilized in the leather industry for coloring leather goods, ensuring a uniform and durable finish. Its strong affinity for cellulose fibers makes it particularly effective for applications requiring high color fastness and resistance to washing.