CETYLPYRIDINIUM CHLORIDE

123-03-5Y6004-24-6(monohydrate)D08AJ03(WHO),D09AA07(WHO) (dressing),R02AA06(WHO)Y Interactive image CHEBI:32915Y ChEMBL34833Y 28979Y 31239 6BR7T22E2SYD9OM4SK49P(monohydrate)Y DTXSID6041761 InChI=1S/C21H38N.ClH/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-16-19-22-20-17-15-18-21-22;/h15,17-18,20-21H,2-14,16,19H2,1H3;1H/q+1;/p-1YKey: YMKDRGPMQRFJGP-UHFFFAOYSA-MYInChI=1/C21H38N.ClH/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-16-19-22-20-17-15-18-21-22;/h15,17-18,20-21H,2-14,16,19H2,1H3;1H/q+1;/p-1Key: YMKDRGPMQRFJGP-REWHXWOFAU [Cl-].[n+]1(ccccc1)CCCCCCCCCCCCCCCC Cetylpyridinium chloride(CPC) is acationicquaternary ammoniumcompound used in some types ofmouthwashes,toothpastes,lozenges,throat sprays,breath sprays, andnasal sprays.‍​‍‍‍​‍‍‍‍‍‍‍‍​‍ It is anantisepticthat kills bacteria and other microorganisms. It has been shown to be effective in preventing dentalplaqueand reducinggingivitis.It has also been used as an ingredient in certainpesticides. Though one study seems to indicate cetylpyridinium chloride does not cause brown tooth stains,at least one mouthwash containing CPC as an active ingredient bears the warning label "In some cases, antimicrobial rinses may cause surface staining to teeth,"following a failed class-action lawsuit brought by customers whose teeth were stained. The name breaks down as: cetyl- refers to the cetyl group, named for its relation tocetyl alcohol, which was first isolated fromwhale oil(Latin:cetus);pyridiniumrefers to thecation[C5H5NH]+, theconjugate acidofpyridine;chloride refers to theanionCl−.