Acetanilide is a chemical compound that belongs to the class of organic compounds known as anilides. It is commonly used in the pharmaceutical industry as an analgesic and fever-reducing agent. Some synonyms for acetanilide include acetylaminobenzene, N-phenylacetamide, and N-phenylethanamide. Other related compounds include paracetamol, which is a derivative of acetanilide and is used as a pain reliever, and phenacetin, which is also an analgesic and is structurally similar to acetanilide. Acetanilide can be produced by the reaction of aniline with acetic anhydride and is typically a white crystalline powder that is sparingly soluble in water.