Used in the synthesis of hair dye formulations due to its ability to produce stable, long-lasting color when combined with oxidizing agents. It contributes to the development of natural-looking brown to black shades in permanent and semi-permanent dyes. Also employed in the production of azo dyes and pigments for textiles and cosmetics. Its amino and hydroxyl groups allow for easy chemical modification, making it a valuable intermediate in organic synthesis, particularly in the creation of light-stable and wash-resistant colorants.