Acetyl amine alias acetaminophen, the molecular formula is CH3CONH2, acetyl amine chemical synthesis process is mainly acetic acid and ammonia dehydration, can also be by acetyl chloride, acetic anhydride or ethyl acetate and ammonia action. A compound produced by the substitution of hydroxyl groups in acetic acid. Molecular formula CH3CONH2. Colorless crystals. Melting point 82.3 ℃, boiling point 221.2 ℃, relative density 0.9986 (85/4℃). Soluble in water and ethanol. Extremely pure acetyl amine has no odor, commodity acetyl has a stench, which is due to the presence of a small amount of impurities. It has the general properties of amide.