Description

Methoxymethylbis[(3-Phenylallyl)Oxy]Silane CAS NO 83817-68-9 is a specialized organosilicon compound featuring a unique methoxymethyl and bis(phenylallyloxy)silane structure. This compound is valued for its role as a versatile coupling agent and reactive intermediate in advanced material synthesis. It is primarily sought by manufacturers in the polymer, adhesive, and specialty coatings industries seeking to enhance material properties and interface compatibility.

Application

• As a coupling agent in filled polymer composites (e.g., fiberglass, mineral-filled plastics) to improve mechanical strength and moisture resistance.
• A key surface modification agent for inorganic fillers and pigments to promote dispersion and adhesion in polymer matrices.
• As a crosslinking agent or reactive monomer in the synthesis of silicone-modified polymers, resins, and hybrid organic-inorganic materials.
• In the formulation of high-performance adhesives and sealants to enhance bonding to various substrates, including metals, glass, and plastics.
• For the development of specialty coatings with improved durability, chemical resistance, and adhesion properties.
• As a chemical intermediate in pharmaceutical and agrochemical research for introducing silane functionality.

Basic Information

Product Name	Methoxymethylbis[(3-Phenylallyl)Oxy]Silane
CAS No.	83817-68-9
Molecular Formula	C21H26O3Si
Molecular Weight	354.52 g/mol
Synonyms	Methoxymethylbis(3-phenyl-2-propen-1-yloxy)silane; Silane, methoxymethylbis[(3-phenyl-2-propenyl)oxy]-; Bis(3-phenylallyloxy)methoxymethylsilane; (3-Phenyl-2-propenyloxy)methoxymethylsilane; Methoxymethylbis(cinnamyloxy)silane; Cinnamyloxy methoxymethyl silane (related); Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our Methoxymethylbis[(3-Phenylallyl)Oxy]Silane is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting key specifications are available for every 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, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC or HPLC)	≥ 95.0%
Refractive Index (n20D)	Contact for details
Density (g/mL at 20°C)	Contact for details
Water Content (KF)	≤ 0.5%

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