Description

Bromophenyltrimethoxysilane is a versatile organosilane coupling agent featuring a reactive bromophenyl group and three hydrolyzable methoxy groups. This bifunctional structure is critical for creating durable chemical bridges between inorganic substrates and organic polymers or coatings. It is essential for manufacturers in the advanced materials, electronics, and specialty chemical sectors seeking to enhance adhesion, dispersion, and surface modification properties.

Application

• Surface Modification Agent: Used to functionalize glass, silica, metals, and other inorganic surfaces to improve compatibility with organic resins.
• Adhesion Promoter: Enhances the bond strength in coatings, sealants, adhesives, and composite materials, particularly in challenging environments.
• Polymer Intermediate: Serves as a key monomer or cross-linking agent in the synthesis of specialty silicones, siloxanes, and hybrid organic-inorganic polymers.
• Electronics & Semiconductor Manufacturing: Applied in dielectric layers, encapsulation materials, and as a primer to ensure reliability and performance.
• Filler Treatment: Modifies the surface of mineral fillers (e.g., silica, clay) to improve dispersion and mechanical properties in rubber and plastic compounds.
• Research & Development: A valuable building block in organic synthesis and materials science for developing novel functional materials.

Basic Information

Product Name	Bromophenyltrimethoxysilane
CAS No.	17043-05-9
Molecular Formula	C9H13BrO3Si
Molecular Weight	277.19 g/mol
Synonyms	(4-Bromophenyl)trimethoxysilane; 4-Bromophenyltrimethoxysilane; p-Bromophenyltrimethoxysilane; Trimethoxy(4-bromophenyl)silane; Silane, trimethoxy(4-bromophenyl)-; Bromophenyltrimethoxysilane; (p-Bromophenyl)trimethoxysilane; 1-Bromo-4-(trimethoxysilyl)benzene
EINECS	241-119-3

Quality Control

Our Bromophenyltrimethoxysilane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC, HPLC, and NMR, to ensure high purity and consistent performance. A comprehensive Certificate of Analysis (COA) detailing purity, 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 material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed and under an inert atmosphere (e.g., nitrogen) for long-term storage to prevent hydrolysis.

Specification

Item	Specification
Appearance	Clear colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 20°C)	~1.25 g/mL
Refractive Index (n20D)	~1.480

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