Used primarily in the synthesis of analgesic and antipyretic drugs, such as paracetamol (acetaminophen), which is widely used in over-the-counter pain and fever medications. It serves as a key intermediate in the pharmaceutical industry for producing substituted anilines. Also employed in the preparation of certain dyes and hair colorants due to its ability to form colored oxidation products. Additionally, it finds use in the development of photographic developers and in some industrial coupling reactions.