Description

Chloromethyldichloromethylsilane is a highly reactive organosilicon compound, specifically a chloromethyl-functional chlorosilane. This chemical matters as a versatile and critical building block in the synthesis of advanced silicone polymers and functional silane coupling agents. It is primarily needed by manufacturers in the silicone industry, specialty chemical producers, and research institutions developing novel materials for coatings, adhesives, and electronics.

Application

• Silicone Intermediate: A key monomer for the production of specialty silicone oils, resins, and elastomers with chloromethyl functionality.
• Silane Coupling Agent Precursor: Used to synthesize custom silane coupling agents that improve adhesion between organic polymers and inorganic surfaces like glass, metals, or minerals.
• Surface Modification: Imparts reactive chloromethyl groups onto silica or other filler surfaces to create tailored interfaces in composite materials.
• Pharmaceutical & Agrochemical Intermediates: Serves as a building block in the synthesis of more complex organosilicon molecules used in active ingredient development.
• Crosslinking Agent: Functions as a crosslinker in the formulation of heat-cured silicone rubbers and specialty coatings.
• Research & Development: Employed in academic and industrial R&D for creating novel hybrid organic-inorganic materials and dendrimers.

Basic Information

Product Name	Chloromethyldichloromethylsilane
CAS No.	1558-33-4
Molecular Formula	C2H5Cl3Si
Molecular Weight	163.50 g/mol
Synonyms	Dichloro(chloromethyl)methylsilane; (Chloromethyl)methyldichlorosilane; Methyl(chloromethyl)dichlorosilane; Dichloromethyl(chloromethyl)silane; Chloromethyldichloromethylsilane; 1-Chloro-1-(chloromethyl)-1-silapropane; Silane, dichloro(chloromethyl)methyl-; (Chloromethyl)dichloromethylsilane
EINECS	Contact for details

Quality Control

Our Chloromethyldichloromethylsilane is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC and NMR analysis, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials. This product is hygroscopic (moisture-sensitive) and reacts with strong bases. Recommended storage temperature is 2-8°C under an inert atmosphere (e.g., nitrogen or argon) for long-term stability. Keep container tightly sealed when not in use.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Density at 20°C	~1.30 g/mL
Refractive Index (n20D)	~1.460
Water Content (Karl Fischer)	≤ 0.1%

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