Cetylpyridinium chloride (CPC) is a quaternary ammonium salt antiseptic that is used in many over-the-counter personal-care products mouthwashes, toothpastes, lozenges, and breath and nasal sprays, to name a few. It is also used in topical anti-infective products and as a pharmaceutical preservative.
Store away from strong oxidizing agents. Keep container tightly closed. Store in cool, dry conditions in well sealed containers.
(1-Hexadecyl)pyridinium chloride monohydrate is used in a study to assess removal of emulsified oil from oily waste water and removal of emulsified food and mineral oils from waste water. And it is used for detergent-based extraction of membrane-associated enzymes such as alkaline phosphatase, and in extraction of chromium and palladium.