Description

3-Cyanopropylphenyldimethoxysilane is a specialized organosilicon coupling agent featuring both a phenyl group and a reactive cyanoalkyl chain. This bifunctional structure makes it a critical intermediate for modifying surfaces and polymers, enhancing adhesion and compatibility between organic and inorganic phases. It is essential for manufacturers in the advanced materials, electronics, and specialty chemical sectors seeking to improve the performance and durability of their products.

Application

• Surface Modification Agent: Used to functionalize silica, glass, and other inorganic fillers to improve their dispersion and bonding within polymer matrices like epoxies, polyimides, and silicones.
• Adhesion Promoter: Enhances the adhesion of coatings, sealants, and adhesives to difficult-to-bond substrates, including metals and glass, particularly in harsh environments.
• Polymer Synthesis Intermediate: Serves as a key monomer or cross-linking agent in the synthesis of specialty silicones, polyimides, and other high-performance polymers with tailored properties.
• Chromatography Stationary Phases: Employed in the preparation of reversed-phase HPLC columns, where the cyano and phenyl groups contribute to unique selectivity for separating complex mixtures.
• Electronics Encapsulation: Improves the moisture resistance and mechanical stability of encapsulants and underfill materials for semiconductor devices and microelectronics.
• Fiber Optic Coatings: Used in coatings for optical fibers to protect against moisture ingress and improve long-term signal transmission reliability.

Basic Information

Product Name	3-Cyanopropylphenyldimethoxysilane
CAS No.	204760-82-7
Molecular Formula	C12H17NO2Si
Molecular Weight	235.36 g/mol
Synonyms	Phenyl(3-cyanopropyl)dimethoxysilane; (3-Cyanopropyl)phenyldimethoxysilane; Dimethoxy(3-cyanopropyl)phenylsilane; Phenyldimethoxy(3-cyanopropyl)silane; Silane, dimethoxy(3-cyanopropyl)phenyl-; 3-Cyanopropyl(dimethoxy)phenylsilane; (γ-Cyanopropyl)phenyldimethoxysilane
EINECS	Contact for details

Quality Control

Our production of 3-Cyanopropylphenyldimethoxysilane adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including GC, HPLC, and NMR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and key physical properties is provided with every shipment to support your quality assurance and regulatory compliance 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 and under a dry inert atmosphere (e.g., nitrogen) after opening to prevent hydrolysis and maintain product integrity.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Refractive Index (n20/D)	1.490 - 1.500
Density (g/mL, 25°C)	1.05 - 1.10
Water Content (KF)	≤ 0.5%

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