Used as an intermediate in the synthesis of azo dyes and pigments, particularly for producing bright and stable colorants for textiles, inks, and coatings. It plays a key role in hair dye formulations, contributing to long-lasting shades due to its reactivity in forming colored complexes. Also utilized in the preparation of certain pharmaceuticals and agrochemicals where nitroaromatic and diamine functionalities are required. Its selective reactivity makes it valuable in fine chemical synthesis for coupling reactions.