Description

Trimethyl[3-(Triethoxysilyl)Propyl]Ammonium Chloride is a quaternary ammonium-functional organosilane coupling agent, a key intermediate for imparting permanent cationic functionality to surfaces and polymers. Its value lies in its dual reactivity, where the triethoxysilyl group bonds to inorganic substrates like glass or silica, and the quaternary ammonium group provides durable antimicrobial, antistatic, or dye-affinity properties. This compound is essential for manufacturers in the textile, personal care, coatings, and advanced material sectors seeking to create high-performance, functionalized products.

Application

• Antimicrobial Finishes for Textiles: Covalently bonds to fibers to create durable, non-leaching antibacterial and antifungal fabrics for medical, sportswear, and home textiles.
• Hair Care & Cosmetic Ingredients: Used in conditioning agents (e.g., quat silicones) to provide superior softness, manageability, and substantivity to hair and skin.
• Surface Modification of Fillers: Treats silica, glass fibers, and other minerals to improve dispersion in polymer matrices and enhance composite mechanical properties.
• Cationic Functional Coatings: Serves as a primer or additive in coatings to improve adhesion to negatively charged substrates and provide antistatic effects.
• Paper & Pulp Chemicals: Acts as a retention aid, drainage aid, or softening agent by interacting with cellulose fibers.
• Water Treatment: Used to modify membranes or resins for improved filtration and ion-exchange capabilities.
• Chromatography Media: Functionalizes silica gel to create stationary phases for ion-exchange chromatography.

Basic Information

Product Name	Trimethyl[3-(Triethoxysilyl)Propyl]Ammonium Chloride
CAS No.	84901-27-9
Molecular Formula	C12H30ClNO3Si
Molecular Weight	299.91 g/mol
Synonyms	3-(Trimethoxysilyl)propyltrimethylammonium chloride (common alternate); N-Trimethoxysilylpropyl-N,N,N-trimethylammonium chloride; (3-Triethoxysilylpropyl)trimethylammonium chloride; Trimethyl(3-triethoxysilylpropyl)azanium chloride; Silane AY 43-308; Dow Corning Z-6011; Propyldimethyl[3-(triethoxysilyl)propyl]ammonium chloride; Quat Silane
EINECS	Contact for details

Quality Control

Our production of Trimethyl[3-(Triethoxysilyl)Propyl]Ammonium Chloride adheres to strict quality management protocols. Each batch undergoes rigorous analytical testing, including assay (NMR/Titration), identity confirmation (IR), and impurity profiling, to ensure consistency and high purity. Certificates of Analysis (COA) detailing all specifications 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 product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent moisture absorption and hydrolysis. Keep away from strong acids and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (NMR)	≥ 95.0%
Chloride Content	Conforms
Refractive Index (n20/D)	1.420 - 1.430
Density (g/mL, 25°C)	1.00 - 1.10

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