Direct Violet 1 is a direct dye primarily used in the textile industry for dyeing cotton, linen, and other cellulosic fibers, providing a deep violet color with good lightfastness and washfastness. It is well-suited for continuous dyeing processes and typically does not require mordants, which helps reduce production costs. Additionally, it is applied in printing inks and textile printing for vibrant and uniform coloration. It also finds use in paper manufacturing for tinting, leather coloring, and biological staining applications in microscopy.