Description

Dimethyloctadecyl[3-(Triethoxysilyl)Propyl]Ammonium Chloride is a high-value organosilicon quaternary ammonium compound that serves as a powerful coupling agent and modifier. Its unique structure combines a long hydrophobic alkyl chain with a reactive silane group, enabling it to impart durable antimicrobial and surface-active properties to a wide range of materials. This product is essential for manufacturers in the plastics, textiles, and coatings industries seeking to create advanced functional materials with enhanced performance and longevity. The compound is identified by CAS No. 62117-57-1.

Application

• Antimicrobial Finishes for Textiles and Nonwovens: Provides durable, non-leaching antibacterial and antifungal properties to fabrics, medical textiles, and filtration media.
• Surface Modification of Inorganic Fillers: Acts as a coupling agent to improve the dispersion and compatibility of silica, clay, and other fillers within polymer matrices like plastics and rubber.
• Functional Additive for Coatings and Paints: Imparts antimicrobial activity and improved adhesion to various substrates in architectural, marine, and industrial coatings.
• Paper and Pulp Treatment: Used to confer biocidal properties and improve wet-strength in specialty paper products.
• Personal Care and Cosmetic Formulations: Serves as a conditioning agent and preservative booster in hair care and skin care products due to its cationic nature.
• Water Treatment Applications: Functions as a biocide and algicide in industrial water cooling systems and process water.
• Adhesive and Sealant Modifier: Enhances adhesion to difficult substrates and provides inherent antimicrobial protection.
• Research & Development: Utilized in the synthesis of novel hybrid organic-inorganic materials and functional surfaces.

Basic Information

Item	Detail
Product Name	Dimethyloctadecyl[3-(Triethoxysilyl)Propyl]Ammonium Chloride
CAS No.	62117-57-1
Molecular Formula	C29H64ClNO3Si
Molecular Weight	522.36 g/mol
Synonyms	Octadecyldimethyl(3-triethoxysilylpropyl)ammonium chloride; 3-(Trimethoxysilyl)propyldimethyloctadecylammonium chloride (common misnomer); Silane quaternary ammonium compound; QAS-18; DC-5700 (a common trade name); (3-Triethoxysilylpropyl)dimethyloctadecylammonium chloride; N,N-Dimethyl-N-octadecyl-3-(triethoxysilyl)-1-propanaminium chloride; Organosilane quat
EINECS	Contact for details

Quality Control

Our production of Dimethyloctadecyl[3-(Triethoxysilyl)Propyl]Ammonium Chloride adheres to stringent quality management protocols. Each batch is analyzed to ensure it meets precise chemical and physical specifications, including assay purity, identity confirmation, and control of key impurities. Certificates of Analysis (COA) documenting these results are provided with every shipment. We support compliance with relevant global regulatory frameworks, including REACH.

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); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can compromise product performance.

Specification

Item	Specification
Appearance	Clear to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (NMR/Titration)	≥ 95.0%
Active Content	≥ 40% in methanol (typical)
Chloride Content	Conforms
Specific Gravity (25°C)	0.89 - 0.92
Refractive Index (n20D)	1.440 - 1.445

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