Description

(Chloromethoxy)Trichlorosilane is a highly reactive organosilicon compound that serves as a critical intermediate in advanced material synthesis. Its unique structure, featuring both chloromethoxy and trichlorosilyl functional groups, makes it a versatile building block for introducing specific functionalities into silicon-based polymers and surfaces. This chemical is essential for manufacturers in the silicone, electronics, and specialty chemical industries seeking to develop high-performance materials with tailored properties.

Application

• Silicone Resin & Polymer Modification: A key monomer for synthesizing specialty silicone resins with enhanced thermal stability and chemical resistance.
• Surface Treatment & Coupling Agent: Used to modify inorganic surfaces (glass, silica, metals) to improve adhesion and compatibility with organic matrices.
• Electronic Materials Precursor: Serves as a starting material in the production of silicon-containing dielectric layers and protective coatings in semiconductor fabrication.
• Intermediate for Functional Silanes: Acts as a precursor for synthesizing other organofunctional silanes used in adhesives, sealants, and composites.
• Hydrophobic Coating Formulations: Imparts water-repellent characteristics to surfaces in construction and textile treatments.
• Research & Development: Employed in academic and industrial R&D for exploring novel organosilicon chemistry and material properties.

Basic Information

Product Name	(Chloromethoxy)Trichlorosilane
CAS No.	18157-08-9
Molecular Formula	C2H4Cl4OSi
Molecular Weight	213.94 g/mol
Synonyms	Trichloro(chloromethoxy)silane; (Chloromethoxy)trichlorosilane; Silane, trichloro(chloromethoxy)-; Chloromethoxytrichlorosilane; (Chloromethoxy)silicon trichloride; Methoxychlorotrichlorosilane; Trichlorosilane, (chloromethoxy)-; (Chloromethoxyl)trichlorosilane
EINECS	242-060-5

Quality Control

Our (Chloromethoxy)Trichlorosilane is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analysis, including assay by GC and impurity profiling, to meet exacting customer specifications. A detailed Certificate of Analysis (COA) documenting identity, purity, and physical properties is provided with every 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 away from heat sources and incompatible materials. Due to its highly volatile and hygroscopic nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and decomposition. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Density (at 20°C)	1.45 - 1.50 g/mL
Boiling Point	Approx. 120-125°C
Water Content (KF)	≤ 0.1%

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