N-Hexadecyltrimethylammonium chloride

• CAT Number: M068300
• CAS Number: 112-02-7
• Molecular Formula: C19H42ClN
• Molecular Weight: 320.02
• Purity: ≥95%
• Storage: -20°C
• IUPAC Name: hexadecyl(trimethyl)azanium;chloride
• 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
• InChIKey: WOWHHFRSBJGXCM-UHFFFAOYSA-M
• SMILES: CCCCCCCCCCCCCCCC[N+](C)(C)C.[Cl-]

N-Hexadecyltrimethylammonium chloride(CAT: M068300), also known as cetyltrimethylammonium chloride (CTAC), is a quaternary ammonium compound widely used as a cationic surfactant and phase transfer agent. Featuring a long hydrophobic hexadecyl (C16) chain and a hydrophilic quaternary ammonium head, it effectively reduces surface tension and forms stable micelles in aqueous solutions. CTAC is employed in cosmetics, hair care products, disinfectants, and emulsifiers. In research and industrial settings, it plays a role in nanoparticle synthesis, electrochemical applications, and colloid stabilization. Its antimicrobial properties and excellent surfactant behavior make it ideal for formulations requiring cationic surface activity.