Dodecyl dimethyl betaine

Basic Info:

  • Chemical Synonym(s): Lauryl betaine;
  • Read More
  • CAS Number: 683-10-3
  • Chemical Formula:


  • MSDS: Download


Appearance & Physical State
Light yellow clear liquid
1.04 g/mL at 20ºC
Boiling point
414.52°C (rough estimate)
Refractive index
1.4545 (estimate)
Storage temp.
Sealed in dry,Room Temperature
Specific Gravity
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Dodecyl dimethyl betaine is a quaternary ammonium compound. It is an amphiphile used as an emulsifier, dispersant, foaming agent, thickener and surfactant in various applications.

It is an amphoteric surfactant composed of 12-carbon aliphatic chains and two quaternary ammonium groups.

It is derived from the reaction between dimethylamine and oleic acid. This yellowish liquid has a characteristic odor and is soluble in water.

It is made of two compounds of fatty acids, which are dodecanoic acid and methylamine. It considered being an ecological and biodegradable alternative to conventional nonionic surfactants.


Dodecyl dimethyl betaine is a surface-active agent or surfactant of the amidoamine class used in the cosmetic, pharmaceutical and food industries.

It can use it in textile processing, personal care products, pharmaceuticals, oil drilling operations, and various cleaning agents. It is used as an effective surfactant in shampoos, body washes, and other personal care products.

It is also used in textile and leather industries and personal care and cleaners formulations to improve wet and dry properties and impart softness and convenience to the garments and materials.

It is also used in agriculture and oil and gas industries to prevent corrosion and enhance equipment performance.

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