Description

1,8-Bis(Triethoxysilyl)Octane is a bifunctional organosilane coupling agent featuring a long-chain alkane bridge terminated by reactive triethoxysilyl groups. This unique molecular structure is critical for creating durable covalent bonds between inorganic substrates and organic polymers, significantly enhancing composite material performance. It is essential for manufacturers in the advanced materials, coatings, and adhesives industries seeking to improve adhesion, mechanical strength, and environmental resistance in their products.

Application

• As a coupling agent and crosslinker in silicone rubber and sealants to improve tensile strength and heat resistance.
• As a surface modifier for silica, glass fibers, and minerals to enhance their compatibility and dispersion in polymer matrices like polyolefins and epoxies.
• As an adhesion promoter in primers and coatings for metals, glass, and plastics, providing excellent water and corrosion resistance.
• In the formulation of moisture-curable resins and hybrid organic-inorganic materials (ORMOSILs) for specialized optical and protective coatings.
• For the functionalization of nanoparticles to prevent agglomeration and enable their incorporation into advanced composite systems.
• As a key intermediate in the synthesis of specialty silicones and silane-modified polymers (SMPs) used in construction and automotive applications.

Basic Information

Product Name	1,8-Bis(Triethoxysilyl)Octane
CAS No.	52217-60-4
Molecular Formula	C22H50O6Si2
Molecular Weight	466.81 g/mol
Synonyms	Octane-1,8-diylbis(triethoxysilane); 1,8-Octanediylbis(triethoxysilane); Bis(triethoxysilyl)octane; OGSol 2100; Dynasylan® OCTEO; Silane A-137; SIB1822.0; Triethoxy[8-(triethoxysilyl)octyl]silane
EINECS	Contact for details

Quality Control

Our 1,8-Bis(Triethoxysilyl)Octane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC, NMR, and Karl Fischer titration, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing purity, identity, and key physical properties are available upon request 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). This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent hydrolysis and maintain product integrity. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.1%
Refractive Index (n20/D)	1.415 - 1.425
Density (20°C)	0.92 - 0.96 g/mL

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