Description

11-Bromoundecyltriethoxysilane is a specialized bifunctional organosilane coupling agent, featuring a reactive bromoalkyl group and hydrolyzable ethoxysilane groups. This unique structure makes it a critical intermediate for creating covalent linkages between inorganic substrates and organic polymers or bioactive molecules. It is essential for manufacturers and R&D teams in the advanced materials, life sciences, and specialty chemical sectors seeking to engineer surface properties and enhance material performance.

Application

• Surface Modification Agent: Primarily used to functionalize inorganic surfaces like glass, silica, and metals, introducing a reactive bromine handle for further chemical grafting.
• Polymer Synthesis & Modification: Serves as a key monomer or initiator in controlled radical polymerization (e.g., ATRP) to create silane-terminated polymers or block copolymers.
• Bio-conjugation & Immobilization: Enables the covalent attachment of biomolecules (proteins, peptides, DNA) to solid supports for biosensor, diagnostic assay, and microarray development.
• Adhesion Promotion: Improves the adhesion of coatings, sealants, and adhesives to challenging substrates by forming a durable chemical bridge.
• Nanomaterial Functionalization: Used to modify nanoparticles (silica, quantum dots) to control dispersion, compatibility, and introduce specific reactivity.
• Chromatography Media: Employed in the synthesis of specialized stationary phases for HPLC and affinity chromatography with tailored surface chemistry.
• Hybrid Material Fabrication: A building block for synthesizing organic-inorganic hybrid materials (ORMOSILs) with customized mechanical and optical properties.

Basic Information

Product Name	11-Bromoundecyltriethoxysilane
CAS No.	200138-14-3
Molecular Formula	C17H37BrO3Si
Molecular Weight	397.47 g/mol
Synonyms	(11-Bromoundecyl)triethoxysilane; Triethoxy(11-bromoundecyl)silane; 11-Bromoundecyl triethoxysilane; 1-Bromo-11-(triethoxysilyl)undecane; Undecyl, 11-bromo-, triethoxy deriv.; Silane, (11-bromoundecyl)triethoxy-; Bromoundecyltriethoxysilane
EINECS	Contact for details

Quality Control

Our 11-Bromoundecyltriethoxysilane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including NMR, GC, and FTIR, to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment. We support compliance with relevant global regulatory frameworks.

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). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis and degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95.0%
Refractive Index (n20D)	1.4450 - 1.4550
Density (g/mL, 25°C)	1.05 - 1.15

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