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Cetylpyridinium Chloride

Cetylpyridinium chloride is known as Cetyl Pyridinum Chloride. It has CAS No. 123-03-5, Molecular formula C21H38ClN and Molecular weight 339.99 g mol−1. It is a cationic quaternary ammonium compound and used in nasal sprays, breathe sprays, throat sprays, mouthwashes, toothpastes and lozenges. It has very effective to kill bacteria and other microorganisms. It has proved too actively to avoid dental plaque and reducing gingivitis. It has been used as component in particular pesticides.

Specifications - Cetylpyridinium chloride

Cetylpyridinium Chloride

Cetylpyridinium chloride


[ 123-03-5 ]

Molecular formula C21H38ClN
Molecular weight 339.99 g mol−1
Description White or almost white powder, slightly soapy to the touch.
A) By UV The absorbance max at 259 nm & 2 shoulders at about 254 nm and 265 nm. The specific absorbance at the maximum should be 126 to 134.
B) By IR The IR spectrum of test sample should be concordant with IR spectrum of similar preparation of Cetylpyridinium chloride of working standard.
C) By chemical test The Chloroform layer becomes blue by addition of solution S.
D) By chemical test Solution S should give positive reaction of chlorides.
Heavy metals Max. 0.0010%
Water Between 4.50 % and 5.50 %.
Sulphated ash Not more than 0.2 %.

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