Benzenemethanaminium, N,N-Dimethyl-N-octadecyl-, chloride (1:1)

Chemical Formula:

C₂₆H₄₈ClN

CAS Number:

122-18-9

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Benzenemethanaminium, N,N-Dimethyl-N-octadecyl-, chloride (1:1)

Chemical Formula:

C₂₆H₄₈ClN

CAS Number:

122-18-9

This compound is a quaternary ammonium salt widely known for its strong cationic surfactant and conditioning properties. It is primarily used in hair conditioners, fabric softeners, and disinfectant formulations due to its ability to impart softness, reduce static, and provide antimicrobial benefits. Its long hydrophobic chain enhances conditioning performance, while the quaternary ammonium group ensures strong substantivity to hair, fabric, and skin surfaces.

Characteristics

Molar Weight

410.12 g/mol

Melting Point

~50–55 °C

Solubility

Soluble in water, ethanol, and isopropanol

Density

~0.94 – 0.96 g/cm³

Forms

White to off-white waxy solid or flakes

Odor

Faint characteristic or mild ammonium odor

USES AND APPLICATIONS

Key applications

Functions as an antistatic agent in hair conditioners.
Provides softening in fabric care products.
Acts as antimicrobial in disinfectant formulations.
Improves hair manageability and smoothness.
Used in skin creams as conditioning agent.

Industries

Personal Care & Cosmetics
Textile & Fabric Care
Household Cleaning
Industrial Chemicals
Pharmaceutical Topicals

Synonyms

Stearyl dimethyl benzyl ammonium chloride, Benzalkonium C18, Octadecyl dimethyl benzyl ammonium chloride, Quaternary ammonium chloride

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