Description

8-Bromooctyltrimethoxysilane 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 long-chain alkyl functionalities with terminal reactive sites onto inorganic surfaces or into polymer matrices. It is essential for manufacturers and R&D teams in advanced materials science seeking to modify surface properties, enhance adhesion, or create custom functionalized materials. Key industries that utilize this compound include specialty polymers, advanced composites, and surface coating technologies.

Application

• Surface Modification Agent: For grafting onto silica, glass, metals, and other oxides to impart hydrophobic properties or introduce a reactive bromine handle for further chemical reactions (e.g., nucleophilic substitution, polymerization initiators).
• Polymer Functionalization: As a comonomer or grafting agent to incorporate bromine-functionalized alkyl chains into silicones, polyolefins, or other polymers for subsequent cross-linking or derivatization.
• Adhesion Promoter: In primer formulations and adhesive systems to improve bonding between organic polymers and inorganic substrates like glass, metals, or minerals.
• Intermediate for Synthesis: Used in organic and polymer synthesis to create more complex molecules, dendrimers, or functional monomers via reactions at the bromine terminus.
• Nanomaterial Functionalization: For surface treatment of nanoparticles (e.g., silica, quantum dots) to control dispersion, compatibility with organic solvents/polymers, and to enable bioconjugation.
• Chromatography Media: In the preparation of reversed-phase or specialty stationary phases for HPLC columns by bonding to silica gel.

Basic Information

Product Name	8-Bromooctyltrimethoxysilane
CAS No.	82985-34-0
Molecular Formula	C11H25BrO3Si
Molecular Weight	313.31 g/mol
Synonyms	(8-Bromooctyl)trimethoxysilane; Trimethoxy(8-bromooctyl)silane; 8-Bromooctyltrimethoxy silane; Silane, trimethoxy(8-bromooctyl)-; 3-(8-Bromooctyl)trimethoxysilane; Bromooctyltrimethoxysilane; Octyltrimethoxysilane, 8-bromo-; 1-Bromo-8-(trimethoxysilyl)octane
EINECS	Contact for details

Quality Control

Our 8-Bromooctyltrimethoxysilane is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including GC, NMR, and titration methods, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing purity, identity, and specific impurity profiles are available upon request. We are committed to meeting the stringent requirements of research and industrial applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	Clear colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Refractive Index (n20/D)	1.4450 - 1.4550
Density (g/mL, 25°C)	1.15 - 1.25

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