Quaternary Ammonium Compounds, Di-C14-18-alkyldimethyl, Chlorides

Quaternary ammonium compounds with C14–C18 dialkyldimethyl chains are powerful cationic surfactants used as disinfectants, sanitizers, and preservatives. They exhibit strong antimicrobial and antiviral activity by disrupting microbial cell membranes. Due to their broad-spectrum efficacy, they are widely used in household cleaners, industrial sanitizers, personal care products, and water treatment chemicals.

CAS:

68002-59-5

Formula:

[C₁₄–C₁₈H₂₉–₃₇N(CH₃)₂]⁺Cl⁻

Molar Weight

Variable (approx. 400–500 g/mol depending on chain length distribution)

Boiling Point

Decomposes before boiling

Density

Approx. 0.9–1.0 g/cm³ (at 20 °C)

Forms

White to yellowish waxy solid, paste, or liquid concentrate

Odor

Mild, characteristic, amine-like odor

Key applications

Broad-spectrum disinfectant and sanitizer in healthcare, household, and industrial applications.
Preservative in cosmetics, personal care, and cleaning products.
Biocidal active in water treatment, swimming pools, and cooling towers.
Used in fabric softeners and antistatic agents due to cationic surfactant properties.
Effective against bacteria, fungi, and enveloped viruses.

Industries

Household Cleaning
Healthcare & Disinfection
Water Treatment
Cosmetics & Personal Care
Textiles & Fabric Care

Dialkyldimethylammonium chloride, Didecyldimethylammonium chloride homologues, Quat disinfectant, DDAC (long-chain C14–C18)

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