Description

Dimethylbis(Phenyloctadecyl)Ammonium Chloride is a high-purity quaternary ammonium compound (quat) valued for its potent cationic surfactant properties and excellent chemical stability. This compound is essential for formulating high-performance biocides, phase transfer catalysts, and antistatic agents across multiple industrial sectors. Key industries that rely on this specialty chemical include water treatment, personal care, textiles, and polymer manufacturing, where its long alkyl chain provides superior surface activity and compatibility.

Application

• As a biocide and disinfectant in industrial water treatment systems, cooling towers, and oilfield applications.
• As a phase transfer catalyst (PTC) in organic synthesis, facilitating reactions between reagents in immiscible phases.
• As an antistatic agent and softener in textile finishing and synthetic fiber production.
• As a conditioning agent and preservative in hair care and cosmetic formulations.
• As a clay swelling inhibitor and surfactant in drilling muds for the oil and gas industry.
• As a emulsifier and dispersant in pesticide and agrochemical formulations.
• As a modifier and compatibilizer for polymers and composite materials.
• In research and development as a standard or intermediate for novel specialty chemicals.

Basic Information

Product Name	Dimethylbis(Phenyloctadecyl)Ammonium Chloride
CAS No.	25497-36-3
Molecular Formula	C₅₀H₈₆ClN
Molecular Weight	744.66 g/mol
Synonyms	Dimethylbis(octadecylphenyl)ammonium chloride; Benzenedodecanaminium, N,N-dimethyl-N-octadecyl-, chloride; DODMAC; Distearyldimethylammonium chloride (mixed isomer); Octadecylbenzyldimethylammonium chloride (related); Quaternary ammonium compound, benzyl-C18-alkyl-dimethyl; Arquad DMCB; Bardac 205M; Bardac 208M; Benzyl dimethyl octadecyl ammonium chloride
EINECS	Contact for details

Quality Control

Our Dimethylbis(Phenyloctadecyl)Ammonium Chloride is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including assay, identity confirmation, and impurity profiling, to ensure it meets precise customer and industry specifications. A Certificate of Analysis (COA) documenting purity, physical characteristics, and test results is provided with every shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled 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 and performance.

Specification

Item	Specification
Appearance	White to off-white powder or waxy solid
Identification (IR)	Conforms to structure
Assay (by Titration)	≥ 95.0 %
Loss on Drying	≤ 2.0 %
Residue on Ignition	≤ 0.5 %
Heavy Metals (as Pb)	≤ 20 ppm
Microbiological Control (TAMC)	≤ 1000 CFU/g

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