Description

(2-Chloroethyl)Trimethoxysilane is a bifunctional organosilicon compound that serves as a versatile coupling agent and chemical intermediate. Its molecular structure, featuring both a reactive chloroethyl group and hydrolyzable methoxy silane groups, makes it essential for modifying material interfaces and synthesizing advanced silane derivatives. This product is particularly valuable for manufacturers in the adhesives, sealants, coatings, and specialty polymer industries seeking to enhance adhesion, cross-linking, and surface compatibility.

Application

• As a coupling agent in mineral-filled composites and fiberglass-reinforced plastics to improve mechanical properties and moisture resistance.
• A key intermediate for the synthesis of more complex functional silanes used in surface modification and primers.
• In the formulation of adhesives and sealants to promote adhesion between organic polymers and inorganic substrates like glass, metals, and minerals.
• For the production of moisture-curable silicone resins and cross-linkers in coatings and encapsulants.
• As a surface treating agent for fillers and pigments to improve dispersion and compatibility in polymer matrices.
• In the manufacture of specialty polymers where the chloroethyl group can be used for further chemical modifications.

Basic Information

Product Name	(2-Chloroethyl)Trimethoxysilane
CAS No.	18157-21-6
Molecular Formula	C5H13ClO3Si
Molecular Weight	184.69 g/mol
Synonyms	2-Chloroethyltrimethoxysilane; (2-Chloroethyl)trimethoxysilane; Trimethoxy(2-chloroethyl)silane; Chloroethyltrimethoxysilane; Silane, (2-chloroethyl)trimethoxy-; 3-(Trimethoxysilyl)propyl chloride; γ-Chloropropyltrimethoxysilane (Note: This is a common structural isomer/similar compound often searched); (Chloroethyl)trimethoxysilane
EINECS	Contact for details

Quality Control

Our (2-Chloroethyl)Trimethoxysilane is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including GC and NMR analysis, to ensure high purity and consistency. Certificates of Analysis (COA) detailing specific batch results are available upon request to support your quality assurance and regulatory compliance needs.

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). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed to prevent hydrolysis and degradation upon exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Density (20°C)	1.07 - 1.09 g/cm³
Refractive Index (n20D)	1.410 - 1.415
Chlorine Content	Contact for details

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