Used as a dye in histology for staining tissues, particularly in microscopic examination to highlight specific cellular structures. Commonly applied in aluminum-based mordanting techniques where it forms insoluble complexes with metal ions, enhancing color fastness and contrast in tissue samples. Also utilized in the textile industry for dyeing protein fibers such as silk and wool, providing bright yellow shades with good wash and light resistance when used with appropriate mordants like aluminum or chromium. Employed in laboratory settings for education and research in dye chemistry.