Description

Dichloromethylsilane is a highly reactive organosilicon compound and a key chlorosilane intermediate. Its value lies in its bifunctional nature, featuring both a reactive Si-Cl bond and a methyl group, making it a versatile building block for silicone polymers and surface modification agents. This chemical is essential for manufacturers in the silicone, pharmaceutical, and advanced materials industries seeking to synthesize custom siloxane structures or create hydrophobic surfaces.

Application

• Silicone Intermediate: A fundamental monomer for the synthesis of specialized methylchlorosiloxane polymers and resins.
• Surface Treatment Agent: Used to impart water-repellent (hydrophobic) properties to glass, silica, and other mineral surfaces.
• Chemical Synthesis: Serves as a starting material or reagent in organic and organometallic synthesis, particularly for introducing the -Si(CH3)Cl2 moiety.
• Adhesion Promoter: Acts as a coupling agent in composite materials to improve bonding between organic polymers and inorganic fillers.
• Pharmaceutical Intermediates: Employed in the synthesis of certain silicon-containing active pharmaceutical ingredients (APIs).
• Semiconductor & Electronics: Used in chemical vapor deposition (CVD) processes for depositing silicon-containing thin films.

Basic Information

Product Name	Dichloromethylsilane
CAS No.	20156-50-7
Molecular Formula	CH4Cl2Si
Molecular Weight	115.03 g/mol
Synonyms	Methyldichlorosilane; Dichloro(methyl)silane; Methylsilyl dichloride; Silane, dichloromethyl-; Dichloromethylsilane; Methylene dichlorosilane; Methylchlorosilane (dichloro); NSC 137683
EINECS	243-555-1

Quality Control

Our Dichloromethylsilane is produced under stringent quality management systems. Every batch undergoes comprehensive analytical testing, including gas chromatography (GC) for purity and identity confirmation, to ensure it meets exacting specifications for industrial and synthetic applications. Certificates of Analysis (COA) detailing all test results are provided with each shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat and ignition sources. Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis and maintain product integrity. 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)	≥ 98.0%
Density (at 25°C)	1.10 - 1.12 g/mL
Boiling Point	40 - 42°C

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