Description

n-Hexadecyl-n-(9-Octadecenyl)-N,n-Dimethylammonium is a high-purity quaternary ammonium compound, valued for its potent cationic surfactant properties. This compound is essential for formulations requiring strong emulsification, antistatic effects, and biocidal activity. It is a critical raw material for manufacturers in the personal care, textile processing, and industrial cleaning sectors seeking reliable performance and supply chain consistency.

Application

• Hair Conditioners & Fabric Softeners: Acts as a primary cationic surfactant, providing excellent softening, antistatic, and lubricating properties.
• Industrial Biocides & Sanitizers: Utilized for its broad-spectrum antimicrobial efficacy in disinfectant formulations for hard surfaces and water treatment.
• Emulsion Stabilizer: Serves as an effective emulsifying agent in the production of pesticide emulsions, cosmetic creams, and latex products.
• Textile Auxiliaries: Employed as a softening agent, dyeing assistant, and antistatic agent in fiber and fabric processing.
• Phase Transfer Catalyst: Facilitates reactions between reactants in immiscible phases in specialty organic synthesis.
• Corrosion Inhibition: Used in formulations for oilfield chemicals and industrial cooling water systems to protect metal surfaces.

Basic Information

Item	Detail
Product Name	n-Hexadecyl-n-(9-Octadecenyl)-N,n-Dimethylammonium
CAS No.	134311-09-4
Molecular Formula	C36H74N+ (commonly associated with chloride or other counterions)
Molecular Weight	Contact for details
Synonyms	Dimethylhexadecyl(9-octadecenyl)ammonium; Cetoleyl Dimethyl Ammonium; N,N-Dimethyl-N-hexadecyl-9-octadecen-1-aminium; Quaternium-31 (cosmetic ingredient name); Arquad 16-29; Cetyl Oleyl Dimethyl Ammonium Chloride (common salt form); C16-18 Unsaturated Alkyl Dimethyl Ammonium
EINECS	Contact for details

Quality Control

Our n-Hexadecyl-n-(9-Octadecenyl)-N,n-Dimethylammonium is manufactured under a strict quality management system. Every batch is analyzed to ensure consistent purity, composition, and performance. A comprehensive Certificate of Analysis (COA) detailing assay, identity, and impurity profiles is provided to guarantee the material meets your specific application requirements and industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality.

Specification

Item	Specification
Appearance	Pale yellow to amber viscous liquid or paste
Identification (IR)	Conforms to structure
Assay (Active Matter)	≥ 95.0 %
Water Content	≤ 2.0 %
pH (10% solution)	5.0 - 8.0

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.