Description

1,1,1,3,3,5,5,5-Octachloro-1,3,5-Trisilapentane is a highly chlorinated silane compound, serving as a critical intermediate in the synthesis of advanced silicone materials. Its value lies in its ability to act as a versatile building block for introducing silicon and chlorine functionalities into polymers and specialty chemicals. This product is essential for R&D chemists and manufacturers in the silicone, polymer, and specialty chemical industries seeking to develop materials with specific thermal, chemical, or surface properties.

Application

• Silicone Resin Precursor: A key intermediate in the synthesis of heat-resistant and chemically inert silicone resins for coatings and composites.
• Surface Modification Agent: Used to functionalize inorganic surfaces (e.g., silica, glass) to alter hydrophobicity and improve adhesion in composite materials.
• Polymer Crosslinking Agent: Imparts crosslinking sites in specialty polymers to enhance thermal stability and mechanical strength.
• Chemical Vapor Deposition (CVD): Serves as a silicon and chlorine source in CVD processes for depositing thin films on semiconductors or optical components.
• Flame Retardant Synergist: Used in the development of flame-retardant additives for plastics and textiles due to its high chlorine content.
• Laboratory Reagent: Employed in organic and organometallic synthesis as a specialized chlorosilane reagent for introducing Si-Cl bonds.

Basic Information

Product Name	1,1,1,3,3,5,5,5-Octachloro-1,3,5-Trisilapentane
CAS No.	16538-67-3
Molecular Formula	C2Cl8Si3
Molecular Weight	436.78 g/mol
Synonyms	Octachlorotrisilapentane; 1,1,1,3,3,5,5,5-Octachlorotrisilapentane; Tris(chloromethyl)trichlorosilane; 1,3,5-Tris(chloromethyl)-1,3,5-trichlorotrisilapentane; Chloromethyltrichlorosilane trimer; Hexachloro[1.1.1]propellane silane derivative; Contact for details on additional trade names.
EINECS	240-635-5

Quality Control

Our 1,1,1,3,3,5,5,5-Octachloro-1,3,5-Trisilapentane is manufactured under strict process controls to ensure batch-to-batch consistency and high purity. Quality is verified through analytical techniques including Gas Chromatography (GC) and NMR spectroscopy. A Certificate of Analysis (COA) detailing purity, identity, 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, well-ventilated area at room temperature (15-25°C). Due to its hygroscopic and highly volatile nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and decomposition. Keep away from strong acids and organic solvents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Density (at 20°C)	~1.65 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.