Acid Blue 92 is a synthetic acid dye widely used in the textile industry for coloring acid-sensitive fibers, such as wool, silk, and polyamides (e.g., nylon). It imparts a vibrant blue shade with excellent fastness properties, including resistance to light, washing, and perspiration. In the paper industry, it is employed for tinting, shading, and dyeing paper products. Acid Blue 92 also serves as a histological stain in biological applications to highlight specific tissue components under microscopic examination. Additionally, it finds use in the ink industry for formulating writing, printing, and packaging inks. In laboratory settings, it can act as a pH indicator due to its color change properties in acidic and basic solutions.