(2-Fluoro-4-methylphenyl)hydrazine is primarily used in the synthesis of various organic compounds, particularly in the development of pharmaceuticals and agrochemicals. Its hydrazine moiety makes it a valuable intermediate in the preparation of heterocyclic compounds, such as indoles and pyrazoles, which are often found in drugs targeting central nervous system disorders, inflammation, and infections. Additionally, it is utilized in the production of dyes and pigments due to its ability to form stable azo compounds. In research, it serves as a building block for creating novel chemical entities with potential biological activities, aiding in drug discovery and development processes.