Description

Silane, Trimethoxy1-Methyl-2-(Oxiranylmethoxy)Ethyl- CAS NO 233765-90-7 is a specialized organosilane coupling agent featuring both epoxy and methoxysilane functional groups. This dual functionality is critical for enhancing adhesion and compatibility between inorganic materials and organic polymer matrices. It is essential for formulators and manufacturers in the coatings, adhesives, sealants, and advanced composite materials industries seeking to improve product durability and performance.

Application

• As a coupling agent and adhesion promoter in epoxy-based coatings, primers, and adhesives for metals, glass, and concrete.
• Surface modification of inorganic fillers and reinforcements (e.g., silica, glass fibers, minerals) to improve dispersion and interfacial bonding in polymer composites.
• Key ingredient in formulating moisture-curable sealants and encapsulants for electronics and construction.
• Enhancement of water resistance and corrosion protection in industrial and marine protective coatings.
• Crosslinking agent or co-monomer in the synthesis of specialty silicone-epoxy hybrid resins.
• Improving the bonding of dental composites and other biomedical materials.

Basic Information

Product Name	Silane, Trimethoxy1-Methyl-2-(Oxiranylmethoxy)Ethyl-
CAS No.	233765-90-7
Molecular Formula	C9H20O5Si
Molecular Weight	236.34 g/mol
Synonyms	3-Glycidoxypropyltrimethoxysilane (common industry name); (3-Glycidyloxypropyl)trimethoxysilane; Glymo; GPTMS; γ-Glycidoxypropyltrimethoxysilane; Trimethoxy[3-(oxiran-2-ylmethoxy)propyl]silane; 2,3-Epoxypropoxypropyltrimethoxysilane; A-187 (OFS-187)
EINECS	Contact for details

Quality Control

Every batch of our silane coupling agent is produced under strict quality management protocols. We employ advanced analytical techniques including Gas Chromatography (GC) and Fourier-Transform Infrared Spectroscopy (FTIR) to ensure high purity and consistent performance. A comprehensive Certificate of Analysis (COA) detailing assay, identity, and impurity profiles is provided with each shipment to guarantee it meets your specific formulation requirements.

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 to prevent contact with atmospheric moisture, which can lead to hydrolysis and polymerization.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 97.0%
Refractive Index (n20D)	1.427 - 1.430
Density (20°C)	1.065 - 1.075 g/mL
Epoxy Value	0.45 - 0.55 eq/100g

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