Description

Methoxymethylbis(3-Phenylpropoxy)Silane is a specialized organosilicon compound with a unique molecular architecture. This silane coupling agent is engineered to enhance the adhesion and compatibility between organic polymers and inorganic substrates, addressing critical performance gaps in composite materials. It is essential for manufacturers in the adhesives, sealants, coatings, and advanced resin industries seeking to improve product durability and mechanical properties.

Application

• As a coupling agent in mineral-filled composites (e.g., fiberglass, silica-filled systems) to improve mechanical strength and moisture resistance.
• A key intermediate in the synthesis of specialty silicone polymers and resins for high-performance coatings.
• Surface modification of inorganic fillers and pigments to enhance dispersion and bonding within organic matrices.
• Formulation of adhesives and sealants requiring excellent thermal stability and adhesion to diverse substrates.
• Used in the production of release coatings and mold-making materials.
• Potential applications in electronics encapsulation and protective coatings due to its organic-inorganic bridging capability.

Basic Information

Product Name	Methoxymethylbis(3-Phenylpropoxy)Silane
CAS No.	83929-22-0
Molecular Formula	C21H30O4Si
Molecular Weight	374.55 g/mol
Synonyms	Bis(3-phenylpropoxy)(methoxymethyl)silane; Methoxymethylbis(3-phenylpropoxy)silane; Silane, methoxymethylbis(3-phenylpropoxy)-; (3-Phenylpropoxy)bis(methoxymethyl)silane (related isomer); MPMBS; Phenylpropoxy functional silane; Organofunctional silane coupling agent
EINECS	Contact for details

Quality Control

Our production of Methoxymethylbis(3-Phenylpropoxy)Silane adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including assay, purity verification, and identity confirmation, to ensure consistency and performance. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory needs.

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). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed and under a dry inert atmosphere (e.g., nitrogen) after opening to prevent degradation.

Specification

Item	Specification
Appearance	Clear colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC or HPLC)	≥ 97.0%
Refractive Index (n20/D)	1.510 - 1.520
Density (g/mL, 20°C)	1.05 - 1.10

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