Description

3-[1-Methyl-2-(Triethoxysilyl)Ethoxy]Phenol is a specialized organosilane coupling agent featuring a phenolic functional group. This unique bifunctional structure is critical for creating durable chemical bridges between inorganic substrates and organic polymer matrices. It is essential for manufacturers in the advanced composites, adhesives, and coatings industries seeking to enhance material performance. The compound enables superior interfacial adhesion, improved mechanical properties, and increased resistance to environmental stress.

Application

• As a coupling agent and adhesion promoter in high-performance epoxy, phenolic, and polyurethane resin systems.
• Surface modification of glass fibers, minerals, and metal oxides to improve compatibility with polymer matrices in composite materials.
• Key intermediate in the synthesis of specialty silicones and silane-modified polymers for sealants and elastomers.
• Enhancing the bonding and durability of industrial and automotive coatings, primers, and adhesives.
• Improving the water resistance and mechanical strength of fiber-reinforced plastics (FRP) and engineering plastics.
• Potential use as a surface treating agent for nanoparticles and fillers to prevent agglomeration and improve dispersion.

Basic Information

Product Name	3-[1-Methyl-2-(Triethoxysilyl)Ethoxy]Phenol
CAS No.	72391-25-4
Molecular Formula	C16H28O5Si
Molecular Weight	328.48 g/mol
Synonyms	Phenol, 3-[1-methyl-2-(triethoxysilyl)ethoxy]-; 3-(1-Methyl-2-(triethoxysilyl)ethoxy)phenol; 2-(3-Hydroxyphenoxy)propyltriethoxysilane; 3-(2-Triethoxysilyl-1-methylethoxy)phenol; Silane coupling agent KH-??? (analog); γ-Phenoxypropyltriethoxysilane derivative; Organofunctional triethoxysilane; Contact for details on additional trade names.
EINECS	Contact for details

Quality Control

Every batch of 3-[1-Methyl-2-(Triethoxysilyl)Ethoxy]Phenol is produced and tested under a strict quality management system. We ensure consistent purity and performance through advanced analytical techniques including GC, HPLC, and NMR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with each shipment to guarantee it meets your specific application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) after opening to prevent hydrolysis and maintain product integrity. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 95.0%
Refractive Index (n20D)	1.460 - 1.480
Density (g/mL, 20°C)	1.00 - 1.10
Moisture (KF)	≤ 0.5%

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