Description

Dimesityldichlorosilane is a highly functionalized organosilicon compound characterized by its two mesityl groups and reactive chlorosilane functionality. This compound is a critical building block in advanced materials science, enabling the precise synthesis of complex siloxane polymers and functionalized silicon surfaces. It is primarily utilized by researchers and manufacturers in the semiconductor, specialty polymer, and advanced coating industries for applications requiring tailored surface properties and high-performance materials.

Application

• Precursor for Silicone Polymers: Serves as a key monomer for synthesizing specialty polysiloxanes and silicone resins with enhanced thermal and chemical stability.
• Surface Modification Agent: Used to functionalize silica, glass, and other inorganic surfaces, imparting hydrophobic or specific reactive properties.
• Semiconductor Manufacturing: Employed in the deposition of silicon-containing thin films and as a precursor in chemical vapor deposition (CVD) processes.
• Catalyst and Ligand Synthesis: Acts as a starting material for creating novel N-heterocyclic carbene (NHC) ligands and other organometallic catalysts.
• Adhesion Promoters: Incorporated into formulations to improve the adhesion of coatings and sealants to various substrates.
• Research & Development: A valuable reagent in organic and organometallic synthesis for constructing complex molecular architectures.

Basic Information

Product Name	Dimesityldichlorosilane
CAS No.	5599-27-9
Molecular Formula	C20H26Cl2Si
Molecular Weight	365.41 g/mol
Synonyms	Dichlorodimesitylsilane; Dichloro(dimesityl)silane; Bis(2,4,6-trimethylphenyl)dichlorosilane; Dichlorobis(2,4,6-trimethylphenyl)silane; Silane, dichlorodimesityl-; Dimesitylsilyl dichloride
EINECS	Contact for details

Quality Control

Our Dimesityldichlorosilane is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including GC, NMR, and titration to verify identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profiles, and physical properties is provided with every shipment to support your quality assurance and R&D documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and reacts with moisture to release hydrogen chloride. Handle and store under an inert atmosphere (argon or nitrogen) for maximum stability. Keep away from strong acids and organic solvents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Chloride Content	19.0 - 20.0 %
Density (at 20°C)	~1.08 g/cm³

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