Used in the synthesis of azo dyes and dye intermediates, particularly for producing acid and direct dyes that are applied in the textile industry for dyeing wool, silk, and nylon. Its structure allows for strong chromophoric properties, contributing to vibrant and stable color formation. Also serves as a key intermediate in the production of optical brighteners for detergents and paper, enhancing whiteness by absorbing UV light and emitting blue fluorescence. Additionally, it finds use in the manufacture of certain pharmaceuticals and photographic chemicals due to its reactivity and solubility characteristics.