Description

1,4-Bis(Chloromethyldimethysilyloxy)Benzene is a high-purity organosilicon compound, specifically a bis(chloromethylsilyl) ether derivative of hydroquinone, serving as a critical bifunctional monomer and cross-linking agent in advanced material synthesis. Its value lies in its ability to introduce both reactive chloromethyl groups and thermally/chemically stable siloxane linkages into polymer backbones, enabling precise control over material architecture and properties. This compound is essential for R&D and production in industries focused on high-performance polymers, specialty coatings, and advanced silicone resins.

Application

• Silicone Resin & Polymer Synthesis: Acts as a key monomer or cross-linker for producing high-temperature resistant, low dielectric constant silicone resins used in electronics and aerospace.
• Advanced Coating Formulations: Imparts enhanced adhesion, chemical resistance, and thermal stability to protective and functional coatings.
• Hybrid Organic-Inorganic Materials: Serves as a molecular bridge (sol-gel precursor) for creating novel hybrid materials with tailored mechanical and optical properties.
• Liquid Crystal Polymers (LCPs): Used as a mesogenic unit precursor in the synthesis of siloxane-containing LCPs for display and optical applications.
• Adhesive & Sealant Chemistry: Incorporated to improve the cross-linking density and environmental durability of high-performance adhesives and sealants.
• Pharmaceutical & Agrochemical Intermediates: Functions as a versatile building block for synthesizing complex molecules with silyl ether protective groups or specific functional handles.
• Gas Separation Membranes: A precursor for polymers with high free volume and selective permeability, useful in membrane technology.
• Academic & Industrial R&D: A valuable reagent for exploring new polymer architectures and material science applications.

Basic Information

Product Name	1,4-Bis(Chloromethyldimethylsilyloxy)Benzene
CAS No.	18057-24-4
Molecular Formula	C12H20Cl2O2Si2
Molecular Weight	331.36 g/mol
Synonyms	1,4-Bis[(chloromethyl)dimethylsilyloxy]benzene; p-Bis(chloromethyldimethylsiloxy)benzene; Hydroquinone bis(chloromethyldimethylsilyl) ether; 1,4-Bis[(chloromethyl)dimethylsiloxy]benzene; Bis(chloromethyldimethylsilyl) ether of hydroquinone; 1,4-Phenylene bis(chloromethyldimethylsilyl ether); (Chloromethyl)dimethyl(phenoxysilane) dimer
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards and precise customer requirements. Each batch is characterized using advanced analytical techniques including GC, HPLC, and NMR to confirm identity, purity, and consistency. Certificates of Analysis (COA) detailing all relevant specifications are available upon request. We adhere to a cGMP-compliant quality management system to guarantee traceability and reliability for our global B2B partners.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong acids, bases, and oxidizing agents. Due to the presence of reactive chloromethyl groups, it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) for long-term stability and to minimize moisture uptake.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Chloride Content	Confirmatory
Refractive Index (n20D)	1.480 - 1.495
Density (g/mL at 20°C)	1.10 - 1.20

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