Cetrimonium chloride

Cetrimonium chloride, or cetyltrimethylammonium chloride (CTAC), is a topical antiseptic and surfactant. Long-chain quaternary ammonium surfactants, such as cetyltrimethylammonium chloride (CTAC), are generally combined with long-chain fatty alcohols, such as stearyl alcohols, in formulations of hair conditioners and shampoos.[1][2] The cationic surfactant concentration in conditioners is generally of the order of 1–2% and the alcohol concentrations are usually equal to or greater than those of the cationic surfactants. The ternary system, surfactant/fatty alcohol/water, leads to a lamellar structure forming a percolated network giving rise to a gel. [2]

Cetrimonium chloride
Names
Preferred IUPAC name
N,N,N-Trimethylhexadecan-1-aminium chloride
Identifiers
CAS Number
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.003.571
PubChem CID
UNII
InChI
  • InChI=1S/C19H42N.ClH/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20(2,3)4;/h5-19H2,1-4H3;1H/q+1;/p-1 Y
    Key: WOWHHFRSBJGXCM-UHFFFAOYSA-M Y
  • InChI=1/C19H42N.ClH/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20(2,3)4;/h5-19H2,1-4H3;1H/q+1;/p-1
    Key: WOWHHFRSBJGXCM-REWHXWOFAY
SMILES
  • CCCCCCCCCCCCCCCC[N+](C)(C)C.[Cl-]
Properties
Chemical formula
 C19H42ClN
Molar mass 320.00 g/mol
Pharmacology
D08AJ02 (WHO) R02AA17 (WHO)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YN ?)
Infobox references

See also
  • Behentrimonium chloride – an C25 structural analogue
  • Cetrimonium bromide – the corresponding bromide salt

References
  1. What is cetrimonium chloride? Archived 2012-03-04 at the Wayback Machine at naturallycurly.com
  2. "The cooling process effect on the bilayer phase state of the CTAC/cetearyl alcohol/water surfactant gel", Colloids and Surfaces A 597 (2020) 1248212


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