Description

2-Cyanoethyltriethoxysilane is a versatile organosilicon coupling agent featuring a reactive cyanoethyl group and hydrolyzable ethoxysilane functionality. This dual reactivity makes it a critical intermediate for modifying material surfaces and creating hybrid organic-inorganic polymers. It is essential for manufacturers in the advanced materials, electronics, and coatings sectors seeking to enhance adhesion, introduce specific functional groups, or improve the compatibility between dissimilar materials.

Application

• As a surface modifier and coupling agent for glass, silica, and metal oxides to improve the adhesion of polymers and resins.
• As a key monomer or precursor in the synthesis of specialty silicone resins and hybrid organic-inorganic materials with tailored properties.
• For the functionalization of fillers and reinforcements (e.g., silica, carbon black) in composite materials to enhance dispersion and interfacial bonding.
• In the formulation of adhesives, sealants, and coatings to provide enhanced moisture resistance and durability.
• As a chemical intermediate in the production of pharmaceuticals and agrochemicals, where its cyano group can be further transformed.
• In the electronics industry for surface treatment of components and in dielectric materials.

Basic Information

Product Name	2-Cyanoethyltriethoxysilane
CAS No.	919-31-3
Molecular Formula	C9H19NO3Si
Molecular Weight	217.34 g/mol
Synonyms	Triethoxy(2-cyanoethyl)silane; (2-Cyanoethyl)triethoxysilane; 3-(Triethoxysilyl)propionitrile; γ-Cyanoethyltriethoxysilane; Propionitrile, 3-(triethoxysilyl)-; Silane, (2-cyanoethyl)triethoxy-; A 1122 (Union Carbide); KBE 103 (Shin-Etsu)
EINECS	213-048-2

Quality Control

Our 2-Cyanoethyltriethoxysilane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC, IR, and titration methods, to ensure consistent purity and performance. A comprehensive Certificate of Analysis (COA) detailing assay, identity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

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 degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Refractive Index (n20/D)	1.415 - 1.425
Density (20°C)	0.98 - 1.02 g/mL
Water Content (KF)	≤ 0.5%

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