Description

2-Cyanoethyltrimethoxysilane is a versatile organosilicon coupling agent featuring both a reactive cyanoethyl group and hydrolyzable methoxysilyl groups. This bifunctional structure makes it a critical intermediate for modifying surfaces and polymers, enhancing adhesion and compatibility between organic and inorganic materials. It is essential for manufacturers in the electronics, advanced composites, and specialty coatings industries seeking to improve material performance and durability.

Application

• Surface Modification Agent: Used to treat glass, silica, and metal oxide surfaces to introduce cyano-functional groups, improving adhesion for subsequent coatings or resin systems.
• Polymer & Resin Modification: Acts as a crosslinking agent or modifier in epoxy, acrylic, and polyurethane resins to enhance thermal stability, mechanical strength, and chemical resistance.
• Adhesion Promoter: Incorporated into primers and adhesives for bonding difficult substrates like metals, glass, and plastics, particularly in automotive and aerospace applications.
• Filler & Composite Treatment: Coupling agent for mineral fillers (e.g., silica, clay) in rubber and plastic composites to improve dispersion and interfacial bonding.
• Electronic Encapsulants & Sealants: A key ingredient in silicone-based potting compounds and sealants for electronic components, providing moisture resistance and reliable performance.
• Fiber Sizing: Applied as a sizing agent on glass or carbon fibers to improve their compatibility and bond strength with polymer matrices in reinforced composites.
• Specialty Silicone Synthesis: Serves as a precursor for synthesizing custom silicone oils, elastomers, and resins with specific cyano-functional properties.

Basic Information

Product Name	2-Cyanoethyltrimethoxysilane
CAS No.	2526-62-7
Molecular Formula	C6H13NO3Si
Molecular Weight	175.26 g/mol
Synonyms	3-(Trimethoxysilyl)propionitrile; (3-Cyanopropyl)trimethoxysilane; Trimethoxy(3-cyanopropyl)silane; γ-Cyanopropyltrimethoxysilane; Cyanoethyltrimethoxysilane; Silane, trimethoxy(3-cyanopropyl)-; Propionitrile, 3-(trimethoxysilyl)-; A 1122 (Momentive trade name)
EINECS	219-767-5

Quality Control

Our 2-Cyanoethyltrimethoxysilane is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including gas chromatography (GC) for purity and identity confirmation, to ensure it meets precise specifications and consistent performance for your applications. A detailed Certificate of Analysis (COA) is provided with every shipment to guarantee traceability and compliance with your quality requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, 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.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Purity (GC)	≥ 97.0%
Refractive Index (n20/D)	1.418 - 1.422
Density (20°C)	1.06 - 1.08 g/mL

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