Description

Chlorodimethylphenylsilane is a versatile organosilicon compound, specifically a chlorosilane, that serves as a critical building block in advanced material synthesis. Its value lies in its dual functionality, where the reactive chlorine atom and the phenyl group enable precise modifications to silicon-based polymers and surfaces. This chemical is essential for manufacturers and R&D laboratories in the pharmaceutical, agrochemical, and specialty silicone industries, where it is used to introduce hydrophobic phenyl groups or as a key intermediate in coupling reactions.

Application

• Silicone Resin & Polymer Modification: Acts as a key monomer or end-capping agent to introduce phenyl groups, enhancing the thermal stability, refractive index, and solubility of resulting silicone polymers.
• Surface Functionalization Agent: Used to modify silica, glass, or other inorganic surfaces, creating hydrophobic and organofunctional coatings for advanced composites and fillers.
• Pharmaceutical Intermediate: Serves as a protected silane reagent in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Employed as a building block in creating silicon-containing pesticides and herbicides with improved efficacy and environmental profiles.
• Adhesive & Sealant Formulations: Imparts specific rheological and adhesion properties when incorporated as a cross-linking agent or modifier in high-performance silicone systems.
• Laboratory Reagent: Utilized in organic and organometallic synthesis for introducing the dimethylphenylsilyl protecting group or as a precursor to other functional silanes.

Basic Information

Product Name	Chlorodimethylphenylsilane
CAS No.	768-33-2
Molecular Formula	C8H11ClSi
Molecular Weight	170.71 g/mol
Synonyms	Dimethylphenylchlorosilane; Phenylchlorodimethylsilane; Chloro(dimethyl)phenylsilane; Dimethyl(phenyl)chlorosilane; (Chlorodimethylsilyl)benzene; NSC 66199; Phenyl(dimethyl)chlorosilane; Dimethylphenylsilyl chloride
EINECS	212-197-1

Quality Control

Our Chlorodimethylphenylsilane is produced under stringent quality management systems. Every batch undergoes rigorous analytical testing, including Gas Chromatography (GC) and NMR spectroscopy, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with each shipment to guarantee it meets your specific application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its moisture-sensitive (hygroscopic) nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis. Keep away from strong bases, oxidizers, and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Density (at 20°C)	1.00 - 1.02 g/mL
Refractive Index (n20D)	1.510 - 1.515
Water Content (KF)	≤ 0.1%

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