Description

Trimethoxy-7-Oxabicyclo[4.1.0]Hept-3-Ylsilane is a specialized organosilicon compound featuring a reactive epoxycyclohexyl moiety. This unique structure makes it a valuable silane coupling agent and monomer for modifying polymer and composite material interfaces. It is primarily used by R&D and production chemists in the advanced materials, coatings, and adhesives industries to enhance adhesion, cross-linking, and surface properties.

Application

• Surface Modification Agent: Used to functionalize inorganic fillers (e.g., silica, glass fibers) for improved compatibility and dispersion in polymer matrices.
• Adhesion Promoter: Enhances the bond strength between organic polymers (epoxies, polyurethanes) and inorganic substrates like metals, glass, and minerals.
• Cross-linking Monomer: Incorporated into polymer backbones (e.g., silicones, epoxies) to introduce reactive sites for curing and network formation.
• Coatings & Sealants: Improves the durability, water resistance, and mechanical properties of high-performance industrial and protective coatings.
• Composite Materials: Acts as a key chemical interface in fiber-reinforced plastics (FRP) and nanocomposites to optimize stress transfer and performance.
• Electronic Encapsulants: Used in formulations for potting and encapsulating electronic components to provide moisture resistance and stability.

Basic Information

Product Name	Trimethoxy-7-Oxabicyclo[4.1.0]Hept-3-Ylsilane
CAS No.	17139-83-2
Molecular Formula	C9H18O4Si
Molecular Weight	218.32 g/mol
Synonyms	3-(Trimethoxysilyl)-7-oxabicyclo[4.1.0]heptane; 7-Oxabicyclo[4.1.0]hept-3-yltrimethoxysilane; (7-Oxabicyclo[4.1.0]hept-3-yl)trimethoxysilane; Epoxycyclohexyltrimethoxysilane; Epoxycyclohexylethyltrimethoxysilane (common related name); ECHTMS; Silane coupling agent KH-566 (trade name analog); Oxasilinane derivative
EINECS	Contact for details

Quality Control

Our Trimethoxy-7-Oxabicyclo[4.1.0]Hept-3-Ylsilane is manufactured under strict process controls to ensure batch-to-batch consistency and high purity. Quality is verified through analytical methods including GC, HPLC, and NMR spectroscopy. A comprehensive 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, and well-ventilated area at room temperature (15-25°C/59-77°F). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis and degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.440 - 1.450
Density (20°C)	1.05 - 1.15 g/cm³

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