4-Aminoazobenzene is primarily used as an intermediate in the synthesis of azo dyes and other chemicals in the textile industry, imparting vibrant and durable colors to fabrics. It is also employed in the production of inks, coatings, and pigments for long-lasting hues. In research, it serves as a model compound for studying the reactions, properties, and photochemical behavior of azo compounds. Additionally, it finds applications in analytical chemistry for various tests and analyses. However, its use is limited due to potential health risks, including carcinogenicity, and environmental concerns; proper precautions are essential.