Description

1-(2-(Dichloro(Methyl)Silyl)Ethyl)-1,1,3,3,3-Pentamethyldisiloxane is a specialized organosilicon compound featuring a reactive dichlorosilyl group and a stable disiloxane backbone. This unique bifunctional structure makes it a valuable intermediate for introducing specific siloxane linkages and reactive sites into advanced polymeric systems. It is primarily utilized by manufacturers in the silicone industry and advanced materials research for creating custom siloxane-based polymers, surface modifiers, and adhesion promoters.

Application

• Silicone Polymer Modification: Acts as a reactive monomer or chain extender for synthesizing custom polysiloxanes with tailored properties.
• Surface Treatment Agent: Used to modify inorganic surfaces (e.g., glass, silica) to impart hydrophobic or specific functional characteristics.
• Adhesion Promoter Intermediate: Serves as a key precursor in the synthesis of silane coupling agents for composites and coatings.
• Crosslinking Agent: Utilized in the formulation of silicone resins and elastomers where specific crosslink density and stability are required.
• Research & Development: Employed in academic and industrial R&D for developing novel hybrid organic-inorganic materials.
• Specialty Silicone Fluids: A building block for creating specialty silicone oils and fluids with unique rheological or thermal properties.

Basic Information

Product Name	1-(2-(Dichloro(Methyl)Silyl)Ethyl)-1,1,3,3,3-Pentamethyldisiloxane
CAS No.	3439-25-6
Molecular Formula	C9H24Cl2OSi3
Molecular Weight	303.44 g/mol
Synonyms	Methyldichloro[2-(1,1,3,3,3-pentamethyldisiloxanyl)ethyl]silane; 1,1,3,3,3-Pentamethyl-1-[2-(methyldichlorosilyl)ethyl]disiloxane; (2-(Methyldichlorosilyl)ethyl)pentamethyldisiloxane; Dichloro(methyl)[2-(pentamethyldisiloxanyl)ethyl]silane; Silane, dichloromethyl[2-(1,1,3,3,3-pentamethyldisiloxanyl)ethyl]-; CAS 3439-25-6
EINECS	Contact for details

Quality Control

Our production of 1-(2-(Dichloro(Methyl)Silyl)Ethyl)-1,1,3,3,3-Pentamethyldisiloxane adheres to stringent quality management protocols. Each batch undergoes rigorous analytical testing, including assay by GC or NMR and impurity profiling, to ensure consistency and high purity suitable for industrial synthesis. Certificates of Analysis (COA) detailing all critical specifications are provided with every shipment to support your quality assurance processes.

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 compound is hygroscopic (moisture-sensitive) and must be kept under an inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis and maintain stability. Keep away from heat, sparks, open flames, and incompatible materials such as strong 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)	~1.05 g/cm³
Refractive Index (n20D)	~1.425

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