Used primarily as an intermediate in the synthesis of dyes and pigments, particularly azo dyes, which are widely applied in textile, leather, and paper industries. It also serves as a precursor in the production of certain explosives, chemical reagents, and agricultural chemicals such as pesticides (e.g., dinitroaniline herbicides) and fungicides. In research, it is utilized for studying nitration reactions, reaction mechanisms, and as a standard in analytical chemistry for calibration purposes. Additionally, it finds application in the development of photographic chemicals and as a corrosion inhibitor in some industrial processes.