Description

1,1,3,3-Tetracyclopentyldichlorodisiloxane is a specialized organosilicon compound featuring a disiloxane backbone substituted with cyclopentyl groups and reactive chlorine atoms. This unique molecular architecture makes it a valuable precursor and building block for synthesizing advanced silicone polymers and functional materials. It is primarily utilized by R&D chemists and process engineers in the specialty chemicals, advanced materials, and electronics sectors for creating custom siloxane structures with tailored properties.

Application

• Precursor for Silicone Resins & Elastomers: Serves as a key monomer for synthesizing high-performance, cyclopentyl-substituted silicone polymers with enhanced thermal and chemical resistance.
• Surface Modification Agent: Used to functionalize inorganic surfaces (e.g., silica, metals) to impart hydrophobic or specific reactive properties.
• Intermediate for Coupling Agents: Acts as a chemical bridge in the production of silane coupling agents for composite materials and adhesives.
• Research & Development: A critical reagent in academic and industrial labs for exploring novel organosilicon chemistry and material science applications.
• Electronic Materials: Potential use in the synthesis of dielectric layers or encapsulation materials in semiconductor and microelectronics fabrication.
• Catalyst and Ligand Synthesis: Can be used to create novel silicon-based ligands for coordination chemistry and catalysis.

Basic Information

Product Name	1,1,3,3-Tetracyclopentyldichlorodisiloxane
CAS No.	865811-56-9
Molecular Formula	C20H38Cl2OSi2
Molecular Weight	413.60 g/mol
Synonyms	Dichlorotetracyclopentyldisiloxane; Tetracyclopentyldichlorodisiloxane; 1,3-Dichloro-1,1,3,3-tetracyclopentyldisiloxane; Disiloxane, 1,1,3,3-tetracyclopentyl-1,3-dichloro-; Cyclopentyl-substituted dichlorodisiloxane; Organochlorosiloxane monomer; Silicon coupling agent intermediate
EINECS	Contact for details

Quality Control

Our production of 1,1,3,3-Tetracyclopentyldichlorodisiloxane adheres to stringent internal quality standards to ensure batch-to-batch consistency and high purity. Every lot is characterized using advanced analytical techniques including NMR, GC, and FTIR. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

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

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95.0%
Chlorine Content	16.5 - 17.5 %
Density (at 20°C)	~1.05 g/cm³

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