Description

Bis(Chloromethyl)Dichlorosilane is a highly reactive organosilicon compound that serves as a critical building block in advanced material synthesis. Its unique bifunctional structure, featuring both chloromethyl and chlorosilyl groups, makes it an essential precursor for introducing silicon and reactive sites into polymer backbones and surfaces. This chemical is primarily sought by R&D and production teams in the silicone polymer, specialty coatings, and adhesives industries for creating cross-linked networks and functionalized materials with tailored properties.

Application

• Silicone Polymer Synthesis: A key monomer for producing specialty polysiloxanes and silane-modified polymers with enhanced thermal and chemical resistance.
• Cross-linking Agent: Used to create highly cross-linked, durable networks in silicone resins, rubbers, and high-performance sealants.
• Surface Modification: Employed as a coupling agent or surface treatment to functionalize inorganic materials like glass, silica, and metals for improved adhesion and compatibility.
• Intermediate for Functional Silanes: Serves as a precursor in the synthesis of other organofunctional chlorosilanes and alkoxysilanes used in various industrial applications.
• Adhesive & Coating Formulations: Imparts reactivity and improves the bonding characteristics of specialty adhesives and protective coatings.
• Research & Development: Utilized in academic and industrial labs for developing novel silicon-based materials, dendrimers, and hybrid organic-inorganic compounds.

Basic Information

Product Name	Bis(Chloromethyl)Dichlorosilane
CAS No.	18076-97-6
Molecular Formula	C2H4Cl4Si
Molecular Weight	191.94 g/mol
Synonyms	Dichlorobis(chloromethyl)silane; Bis(chloromethyl)dichlorosilane; Dichlorosilane, bis(chloromethyl)-; 1,1-Dichloro-1-sila-2,5-dioxacyclopentane, 3,3,4,4-tetrachloro- (related); Silane, dichlorobis(chloromethyl)-; (Dichloromethylsilyl)methyl chloride; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our Bis(Chloromethyl)Dichlorosilane is manufactured under strict process controls to ensure batch-to-batch consistency and high purity. Quality is verified through a comprehensive suite of analytical techniques including gas chromatography (GC), infrared spectroscopy (IR), and titration methods. A Certificate of Analysis (COA) detailing purity, identity, 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 away from heat sources and incompatible materials. Due to its hygroscopic and highly volatile 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 extended stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 20°C)	~1.45 g/cm³
Refractive Index (n20/D)	~1.480
Water Content (Karl Fischer)	≤ 0.1%

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