Description

4-Bromobutyltrimethoxysilane is a bifunctional organosilane coupling agent featuring a reactive bromoalkyl group and hydrolyzable methoxysilyl groups. This unique structure makes it a critical intermediate for introducing silane functionality into organic molecules and polymer matrices. It is essential for manufacturers in the silicone, polymer modification, and specialty chemical synthesis sectors seeking to enhance material compatibility, adhesion, and surface properties.

Application

• Surface Modification Agent: Used to functionalize inorganic surfaces like glass, silica, and metals to improve adhesion with organic polymers.
• Polymer Crosslinking & Modification: Serves as a crosslinker or grafting agent in silicone elastomers and other polymers to tailor mechanical and thermal properties.
• Intermediate for Specialty Silanes: A key precursor in the synthesis of more complex organofunctional silanes and silicone-based compounds.
• Adhesion Promoter in Coatings & Sealants: Enhances the bond strength and durability of coatings, adhesives, and sealants on challenging substrates.
• Filler Treatment: Improves the dispersion and interfacial bonding of mineral fillers within composite materials, leading to better performance.
• Research & Development: Utilized in laboratories for developing novel materials, including hybrid organic-inorganic systems and functionalized nanoparticles.

Basic Information

Product Name	4-Bromobutyltrimethoxysilane
CAS No.	226558-82-3
Molecular Formula	C7H17BrO3Si
Molecular Weight	257.20 g/mol
Synonyms	(4-Bromobutyl)trimethoxysilane; Trimethoxy(4-bromobutyl)silane; 4-Bromobutyltrimethoxysilane; 4-Bromobutyl-trimethoxysilane; Silane, trimethoxy(4-bromobutyl)-; (4-Bromobutyl)trimethoxy silane; 226558-82-3; 4-Bromo-1-(trimethoxysilyl)butane
EINECS	Contact for details

Quality Control

Our 4-Bromobutyltrimethoxysilane is manufactured under stringent process controls to ensure batch-to-batch consistency and high purity. Quality is verified through comprehensive analytical testing, including gas chromatography (GC), nuclear magnetic resonance (NMR), and titration methods. A Certificate of Analysis (COA) detailing purity, identity, and specific impurity profiles is provided with each 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 under a dry inert atmosphere (e.g., nitrogen) to prevent hydrolysis and maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (20°C)	~1.25 g/cm³
Refractive Index (n20/D)	~1.435

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