Cetylpyridinium

**Definition:** Cationic bactericidal surfactant used as a topical antiseptic for skin, wounds, mucous membranes, instruments, etc.; and also as a component in mouthwash and lozenges.

**Tree numbers:** - D03.383.725.762.232

**Synonyms:** - Cetylpyridium - Hexadecylpyridinium