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Quaternary ammonium salt disinfectants are divided into single chain quaternary ammonium salts (such as Benzalkonium chloride, Benzalkonium bromide, etc.), double chain quaternary ammonium salts (such as Didecyl dimethyl ammonium chloride, Didodecyl dimethyl ammonium chloride, etc.), composite quaternary ammonium salts, and polyquaternary ammonium salts.

Quaternary ammonium salt disinfectants have outstanding advantages. Compared with common disinfectants such as ethanol and chlorine containing disinfectants, they do not have the irritancy of alcohol and can also disinfect wounds; It also lacks the corrosiveness and strong oxidizing properties of chlorine containing disinfectants.

The advantages of quaternary ammonium salt disinfectants are summarized by Ahsuperchem as follows:

1. The sterilization concentration is relatively low, usually using a few thousandths is sufficient;

2. Low toxicity and irritation;

3. The solution is colorless, does not stain items, and has no corrosive or bleaching effects;

4. Less odor;

5. Good water solubility, strong surface activity, and convenient use;

6. Stable in nature, resistant to light, heat, and storage;

7. Broad spectrum sterilization: Quaternary ammonium salt disinfectants can effectively kill various bacteria, viruses, and fungi;

8. Not easy to cause drug resistance.