Description

p-(Methylphenethyl)Methyldichlorosilane, 95% CAS NO 718635-97-3 is a high-purity organosilicon intermediate characterized by its reactive dichlorosilane functional group and aromatic methylphenethyl substituent. This compound is essential for the synthesis of advanced silicone polymers and functional materials, offering a key building block for introducing specific organic moieties into siloxane chains. It is primarily utilized by R&D chemists and process engineers in the specialty chemical, advanced material, and pharmaceutical industries for creating custom silanes, surface modifiers, and silicone-based precursors.

Application

• Silicone Polymer Modification: Serves as a key monomer or cross-linking agent for synthesizing specialty phenyl-containing silicone oils, resins, and elastomers with enhanced thermal and optical properties.
• Surface Functionalization Agent: Used to modify the surface of silica, glass, or metals, creating hydrophobic or specific functional coatings for composite materials and adhesives.
• Pharmaceutical Intermediate: Acts as a protected synthon or reagent in the multi-step synthesis of complex molecules, particularly in developing silicon-containing active pharmaceutical ingredients (APIs).
• Adhesive & Sealant Formulations: Incorporated as an adhesion promoter and cross-linker in high-performance silicone-based adhesive and sealant systems.
• Release Coating Precursor: A precursor for manufacturing silicone release liners used in labels, tapes, and graphic films.
• Research & Development: A valuable reagent for academic and industrial research in organosilicon chemistry, material science, and catalysis.

Basic Information

Product Name	p-(Methylphenethyl)Methyldichlorosilane, 95%
CAS No.	718635-97-3
Molecular Formula	C10H14Cl2Si
Molecular Weight	233.21 g/mol
Synonyms	1-Methyl-4-[2-(methyldichlorosilyl)ethyl]benzene; (4-Methylphenethyl)methyldichlorosilane; Methyldichloro(4-methylphenethyl)silane; p-Tolylethylmethyldichlorosilane; Dichloro(methyl)[2-(4-methylphenyl)ethyl]silane; 2-(4-Methylphenyl)ethylmethyldichlorosilane; 718635-97-3; Methyl(4-methylphenethyl)dichlorosilane
EINECS	Contact for details

Quality Control

Our p-(Methylphenethyl)Methyldichlorosilane is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing, including GC, NMR, and titration methods, to ensure consistent purity, identity, and performance. Certificates of Analysis (COA) with detailed specifications are provided for every shipment to support your quality assurance and regulatory needs.

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 hygroscopic and moisture-sensitive nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Density (at 20°C)	~1.10 g/cm³
Refractive Index (n20D)	~1.52

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