Description

Chloromethyl(Dimethyl)Methoxysilane is a highly reactive organosilicon compound, specifically a chloromethyl-functional alkoxysilane, valued for its dual functionality as a versatile chemical building block. Its primary commercial importance lies in its ability to act as a key intermediate in the synthesis of advanced silicone polymers and surface-modifying agents. This product is essential for manufacturers in the pharmaceutical intermediates, specialty silicone, and advanced materials sectors seeking to introduce specific functional groups into their molecular architectures.

Application

• Key Intermediate in Pharmaceutical Synthesis: Used in the preparation of active pharmaceutical ingredients (APIs) and other bioactive molecules where the chloromethyl group facilitates further chemical modifications.
• Surface Modification Agent: Imparts specific surface properties to inorganic materials like silica, glass, or metals, enhancing adhesion, hydrophobicity, or compatibility in composite materials.
• Crosslinking Agent for Silicone Polymers: Serves as a functional monomer or crosslinker in the production of specialty silicone resins, rubbers, and sealants with tailored properties.
• Silylating Agent in Organic Synthesis: Protects reactive functional groups (e.g., alcohols, amines) during complex multi-step synthetic processes.
• Precursor for Functional Silanes: Acts as a starting material for synthesizing other organofunctional silanes used as adhesion promoters in coatings, adhesives, and sealants.
• Research & Development: Employed in academic and industrial R&D for developing novel materials with customized chemical functionalities.

Basic Information

Product Name	Chloromethyl(Dimethyl)Methoxysilane
CAS No.	18143-33-4
Molecular Formula	C4H11ClOSi
Molecular Weight	138.67 g/mol
Synonyms	(Chloromethyl)dimethylmethoxysilane; Dimethyl(chloromethyl)methoxysilane; Methoxy(chloromethyl)dimethylsilane; Chloromethyldimethylmethoxysilane; (Chloromethyl)methoxydimethylsilane; Silane, (chloromethyl)dimethylmethoxy-; (Dimethylmethoxysilyl)methyl chloride
EINECS	Contact for details

Quality Control

Our production of Chloromethyl(Dimethyl)Methoxysilane adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure consistency, purity, and compliance with customer specifications. Certificates of Analysis (COA) documenting key parameters such as assay, identity, and impurity profiles are available upon request, providing full traceability and quality assurance for your processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its hygroscopic and highly volatile nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen) after opening to prevent moisture absorption and degradation. Keep away from strong acids and organic solvents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Density (at 20°C)	~1.00 g/mL
Refractive Index (n20D)	~1.420
Water Content (KF)	≤ 0.1%

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