Description

3-Cyanopropylmethyldimethoxysilane is a versatile organosilicon coupling agent featuring both a reactive methoxysilane group and a cyano-functional organic chain. This dual functionality makes it a critical intermediate for modifying surfaces and polymers, enhancing adhesion, and creating specialty materials. It is essential for manufacturers in the silicone rubber, adhesives, and advanced composites industries seeking to improve material compatibility and performance.

Application

• Coupling Agent for Silicone Rubber: Enhances the bonding between inorganic fillers (like silica) and the silicone polymer matrix, improving mechanical properties and processability.
• Surface Modification of Fillers and Pigments: Used to treat glass fibers, minerals, and metal oxides to improve their dispersion and compatibility in various polymer systems.
• Adhesive and Sealant Formulations: Acts as an adhesion promoter, particularly in systems requiring strong bonds to difficult substrates.
• Intermediate for Specialty Silanes: Serves as a key building block in the synthesis of more complex functional silanes and silicone-based polymers.
• Fiberglass and Composite Materials: Improves the interfacial adhesion between the resin and glass fibers, leading to composites with higher strength and durability.
• Coatings and Inks: Imparts improved scratch resistance, adhesion, and weather stability to coating formulations.

Basic Information

Product Name	3-Cyanopropylmethyldimethoxysilane
CAS No.	153723-40-1
Molecular Formula	C7H15NO2Si
Molecular Weight	173.29 g/mol
Synonyms	γ-Cyanopropylmethyldimethoxysilane; (3-Cyanopropyl)methyldimethoxysilane; Methyldimethoxy(3-cyanopropyl)silane; 3-Cyanopropyldimethoxymethylsilane; Dimethoxy(3-cyanopropyl)methylsilane; CG 6720 (Momentive); KBM 2363 (Shin-Etsu); Silane A-1022
EINECS	Contact for details

Quality Control

Our 3-Cyanopropylmethyldimethoxysilane is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including Gas Chromatography (GC) for purity and identity verification, to ensure it meets precise specifications. A Certificate of Analysis (COA) detailing all relevant parameters is provided with every shipment to guarantee consistent quality and traceability for your production needs.

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	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Purity (GC)	≥ 97.0%
Refractive Index (n20/D)	1.425 - 1.435
Density (20°C)	0.98 - 1.02 g/cm³

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