Description

2-(Di-n-Octylmethylsilyl)Ethyldimethylchlorosilane is a specialized organosilicon compound featuring a long-chain alkyl group and a reactive chlorosilane moiety. This unique structure makes it a valuable intermediate for introducing hydrophobic, bulky silyl groups onto surfaces or into polymer backbones. It is primarily used by R&D chemists and process engineers in the advanced materials and specialty chemical sectors for surface modification, polymer synthesis, and the development of release coatings and hydrophobic agents.

Application

• Surface Modification Agent: Used to functionalize silica, glass, and other inorganic surfaces to impart hydrophobicity and alter surface energy.
• Polymer Synthesis Intermediate: Serves as a monomer or cross-linking agent in the synthesis of specialty silicones and hybrid organic-inorganic polymers.
• Release Coating Formulations: A key precursor for creating non-stick and easy-release coatings for industrial and packaging applications.
• Adhesion Promoter: Enhances the bonding between organic polymers and inorganic substrates in composite materials.
• Hydrophobic Additive: Incorporated into coatings, sealants, and resins to improve water repellency and moisture resistance.
• Research & Development: A critical building block in academic and industrial labs for developing novel silicone-based materials with tailored properties.

Basic Information

Product Name	2-(Di-n-Octylmethylsilyl)Ethyldimethylchlorosilane
CAS No.	475213-03-7
Molecular Formula	C21H45ClSi2
Molecular Weight	389.21 g/mol
Synonyms	Dimethyl[2-(di-n-octylmethylsilyl)ethyl]chlorosilane; (2-(Di-n-octylmethylsilyl)ethyl)dimethylchlorosilane; Chlorodimethyl[2-(di-n-octylmethylsilyl)ethyl]silane; 2-(Di-n-octylmethylsilyl)ethyldimethylsilyl chloride; Di-n-octylmethyl(2-(dimethylchlorosilyl)ethyl)silane
EINECS	Contact for details

Quality Control

Our production of 2-(Di-n-Octylmethylsilyl)Ethyldimethylchlorosilane adheres to stringent internal quality standards to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques such as GC, NMR, and Karl Fischer titration. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic and highly volatile nature, this material must be stored under a dry, inert atmosphere (e.g., nitrogen or argon) in a cool, well-ventilated area. Recommended storage temperature is 2-8°C to maximize shelf life and stability. Keep away from moisture and incompatible materials such as strong bases, oxidizing agents, and alcohols.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Chlorine Content	Conforms to theoretical
Water Content (KF)	≤ 0.5%

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