Description

[1-[(Chloromethyl)Phenyl]Ethyl]Triethoxysilane is a specialized organosilicon coupling agent featuring both a reactive chloromethyl group and hydrolyzable triethoxysilyl functionality. This dual reactivity makes it a critical intermediate for modifying material surfaces and creating covalent bonds between organic polymers and inorganic substrates. It is essential for manufacturers in the advanced composites, adhesives, and coatings industries seeking to enhance interfacial adhesion, durability, and performance.

Application

• As a key coupling agent in fiberglass-reinforced plastics and mineral-filled composites to improve mechanical strength and moisture resistance.
• Surface modification of silica, glass, and other inorganic fillers to promote compatibility and dispersion in polymer matrices like epoxy, phenolic, and polyurethane.
• Formulation of primers and adhesion promoters for coatings and sealants on challenging substrates such as metals, glass, and concrete.
• Synthesis of specialty silicone resins and hybrid organic-inorganic materials (ORMOSILs) with tailored properties.
• Anchoring point for further chemical modifications in the development of functionalized surfaces for chromatography or catalysis.
• Component in moisture-curable silicone sealants and RTV (Room Temperature Vulcanizing) adhesives.

Basic Information

Product Name	[1-[(Chloromethyl)Phenyl]Ethyl]Triethoxysilane
CAS No.	93803-92-0
Molecular Formula	C15H25ClO3Si
Molecular Weight	316.90 g/mol
Synonyms	(Chloromethyl)phenylethyltriethoxysilane; 1-[(Chloromethyl)phenyl]ethyltriethoxysilane; (1-(Chloromethyl)-1-phenylethyl)triethoxysilane; Triethoxy[(2-chloro-1-phenyl-1-ethyl)]silane; Silane, triethoxy[(2-chloro-1-phenyl-1-ethyl)]-; (2-Chloro-1-phenylethyl)triethoxysilane; Phenyl(chloromethyl)ethyltriethoxysilane
EINECS	Contact for details

Quality Control

Our production of [1-[(Chloromethyl)Phenyl]Ethyl]Triethoxysilane adheres to a strict quality management system. Every batch undergoes rigorous analytical testing, including GC, HPLC, and NMR, to ensure high purity and consistent performance. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive); containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis and maintain product integrity. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Chlorine Content	Conforms to theoretical
Refractive Index (n20D)	1.480 - 1.490
Density (g/mL, 20°C)	1.040 - 1.070

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