Used as an intermediate in the synthesis of vat dyes, particularly for producing blue and green shades in cotton, wool, and other cellulosic fibers. It contributes to the development of dyes with high color fastness to light, washing, and rubbing. Also employed in the production of functional dyes for specialty applications, including electrochromic materials and organic semiconductors due to its stable quinone structure and electron-transfer properties. Its amino groups allow for chemical modifications to tailor solubility and binding characteristics in dye formulations.