Used in the synthesis of hair dye formulations due to its ability to act as a coupler in oxidative dye systems. It reacts with primary intermediates like p-phenylenediamine in the presence of hydrogen peroxide to produce a range of colored compounds, contributing to the development of long-lasting, vibrant hair color. Its structure allows for fine-tuning of shades, particularly in creating brown and black hues. Also employed in the preparation of photographic developers and certain dyes for textiles. Due to its reactivity and sensitivity to oxidation, it is handled under controlled conditions in industrial settings.