Dicetyldimethylammonium chloride

Dicetyldimethylammonium chloride (CAS 1812-53-9), also known as Dicetyldimonium chloride and Quaternium-31, is a dialkyl quaternary ammonium compound used as a cationic surfactant and biocide.

Where is Dicetyldimethylammonium chloride used?

• Hair care: primary conditioning agent in rinse-off conditioners and treatment masks, depositing onto negatively charged hair fiber to improve detangling and softness
• Textile and leather: fabric softener and antistatic agent applied during finishing stages
• Water treatment: biocide targeting bacteria and algae
• Paper: wet-strength additive and surface sizing agent to improve sheet performance
• Hard surface disinfectants for institutional cleaning
• Its dual long-chain structure delivers strong surface adsorption for conditioning, antimicrobial action and emulsion stabilization.

Commercial specifications

• Active concentrations in commercial supply typically range from 70% to 90%.
• Cosmetic-grade material meets purity specifications suitable for leave-on and rinse-off personal care formulations.