This product has excellent shajun power and detergency. It has no corrosive effect on metal and does not pollute clothes. It is used as a disinfectant in medicine. It is used as a bactericide for water injection in oil fields. Antiseptic disinfectant. It can be compatible with other disinfectants and fungicides. Dodecyl dimethyl benzyl ammonium bromide is a quaternary ammonium salt cationic surfactant with the ability of decontamination and sterilization. According to China's regulations, it can be used for the preservation of vegetables and fruits, with the dosage of 0.07g/kg. This product is a commonly used cationic surfactant with both bactericidal and descaling effects. It has strong and fast action, has no corrosive effect on metal products, does not pollute clothes, has stable properties, and is easy to preserve. It is used as a disinfectant and antiseptic in medicine. The product has low toxicity, no irritation to tissues and no cumulative toxicity. The oral LD50 of rats is 400mg/kg; LD50 of fish is 15.0ppm. It is used as a disinfectant and antiseptic in medicine, for hand washing before surgery, skin disinfection and medical instrument disinfection, and for biochemical research of sterilization and algaecide in industrial water treatment. Commonly used cationic surfactant, which has both bactericidal and descaling effects, has strong and fast action, has no corrosive effect on metal products, does not pollute clothes, is stable in nature, and is easy to preserve. This product has low toxicity, no irritation to tissues, and no cumulative toxicity. Cationic surfactant, disinfectant, and emulsifier are used.