Description

Methoxymethylbis[(1,1,5-Trimethyl-6-Heptenyl)Oxy]Silane CAS NO 83817-69-0 is a specialized organosilicon compound featuring a unique branched alkene and methoxymethyl functional groups. This chemical is engineered to serve as a highly effective coupling agent and surface modifier, bridging organic polymers with inorganic substrates. It is essential for manufacturers in the advanced materials, coatings, and adhesive industries seeking to enhance product performance, durability, and adhesion. Its specific structure offers tailored reactivity for demanding applications where standard silanes are insufficient.

Application

• As a key coupling agent in mineral-filled composites (e.g., talc, silica, calcium carbonate) to improve dispersion and mechanical properties.
• As a surface treatment agent for glass fibers, metals, and pigments to promote adhesion in coatings and sealants.
• In the formulation of high-performance silicone-modified polymers and resins for enhanced weather resistance and flexibility.
• As a crosslinking agent or adhesion promoter in specialty rubber and tire manufacturing.
• For the hydrophobization and functionalization of nanoparticles and advanced ceramic materials.
• In the synthesis of specialty silicone intermediates for release coatings and pressure-sensitive adhesives.

Basic Information

Product Name	Methoxymethylbis[(1,1,5-Trimethyl-6-Heptenyl)Oxy]Silane
CAS No.	83817-69-0
Molecular Formula	C23H46O4Si
Molecular Weight	414.70 g/mol
Synonyms	Bis(1,1,5-trimethyl-6-heptenyloxy)methoxymethylsilane; Methoxymethylbis[(1,1,5-trimethyl-6-hepten-1-yl)oxy]silane; Silane, methoxymethylbis[(1,1,5-trimethyl-6-heptenyl)oxy]-; (Methoxymethyl)bis(1,1,5-trimethyl-6-heptenyloxy)silane; Dihydrogeranyloxy(methoxymethyl)silane (derivative); Organosilane coupling agent 83817-69-0
EINECS	Contact for details

Quality Control

Our production of Methoxymethylbis[(1,1,5-Trimethyl-6-Heptenyl)Oxy]Silane adheres to a stringent quality management system. Every batch undergoes rigorous analytical testing, including GC, NMR, and FTIR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical parameters are available upon request, providing full traceability and compliance assurance for your quality 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 tightly sealed under a dry inert atmosphere (e.g., nitrogen) after opening to prevent hydrolysis and maintain product integrity.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Density (at 20°C)	0.88 - 0.92 g/mL
Refractive Index (n20/D)	1.440 - 1.450
Moisture (KF)	≤ 0.5%

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