It is a commonly used non-anti-inflammatory antipyretic and analgesic drug with antipyretic effect similar to aspirin, weak analgesic effect and no anti-inflammatory and anti-rheumatic effect. It is suitable for patients who cannot use carboxylic acid drugs. It is mainly used for cold and fever, joint pain, neuralgia and migraine, cancer pain and postoperative pain relief, and is also an organic synthetic intermediate, a stabilizer of hydrogen peroxide and a photographic chemical.