Description

4-Methoxyphenyltrimethoxysilane is a specialized organosilicon coupling agent featuring a methoxyphenyl functional group. This compound is critical for enhancing the adhesion and compatibility between inorganic materials and organic polymers, particularly in demanding high-performance applications. It is essential for manufacturers in the coatings, adhesives, and advanced composites industries seeking to improve product durability and performance under challenging environmental conditions.

Application

• As a key surface modification agent for glass fibers, silica, and other mineral fillers to improve dispersion and interfacial bonding in polymer composites.
• Used in the formulation of high-performance adhesives and sealants to enhance moisture resistance and long-term bond strength.
• As a coupling agent in epoxy, phenolic, and polyimide resin systems for electronic encapsulants and printed circuit boards.
• Employed in the synthesis of hybrid organic-inorganic materials (ORMOSILs) for advanced optical and protective coatings.
• Acts as a surface primer or additive in corrosion-resistant coatings for metals, improving paint adhesion and substrate protection.
• Utilized in silicone rubber formulations to modify properties and facilitate bonding to other substrates.

Basic Information

Product Name	4-Methoxyphenyltrimethoxysilane
CAS No.	35692-27-4
Molecular Formula	C10H16O4Si
Molecular Weight	228.32 g/mol
Synonyms	(4-Methoxyphenyl)trimethoxysilane; p-Methoxyphenyltrimethoxysilane; Trimethoxy(4-methoxyphenyl)silane; Anisyltrimethoxysilane; Silane, trimethoxy(4-methoxyphenyl)-; 4-Methoxyphenyltrimethoxy silane; A 1620 (OSi Specialties); Dynasylan® 9896
EINECS	Contact for details

Quality Control

Our production of 4-Methoxyphenyltrimethoxysilane adheres to a stringent quality management system. Every batch undergoes comprehensive analytical testing, including assay by GC or HPLC and identity confirmation by FT-IR and NMR spectroscopy, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing all relevant specifications are provided with each shipment.

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 material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed and under a dry inert atmosphere (e.g., nitrogen) for long-term storage to prevent hydrolysis.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Refractive Index (n20D)	1.470 - 1.480
Density (20°C)	1.05 - 1.10 g/cm³

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