Description

11-Phenoxyundecyltrichlorosilane is a specialized organosilicon compound, specifically a long-chain alkyltrichlorosilane derivative with a terminal phenoxy group. This unique bifunctional structure makes it a valuable coupling agent and surface modifier, enabling the creation of stable, functionalized interfaces between organic polymers and inorganic substrates. It is primarily used by R&D scientists and process engineers in advanced materials manufacturing. The compound is identified by CAS number 526204-46-6.

Application

• Surface Modification of Inorganic Oxides: Used to create hydrophobic, oleophobic, or specific functional group-terminated monolayers on glass, silica, metals, and other metal oxide surfaces for improved adhesion, corrosion resistance, or biocompatibility.
• Coupling Agent in Composite Materials: Acts as a chemical bridge to enhance the interfacial bonding and load transfer between organic polymer matrices (e.g., epoxies, polyimides) and inorganic fillers (e.g., glass fibers, silica nanoparticles).
• Preparation of Stationary Phases for Chromatography: Employed to derivatize silica gel to create reversed-phase or specialty HPLC columns with specific selectivity, leveraging its long alkyl chain and aromatic moiety.
• Nano-particle Functionalization: Key reagent for grafting onto the surface of quantum dots, magnetic nanoparticles, or other nanomaterials to impart solubility in organic solvents, prevent aggregation, and provide sites for further conjugation.
• Adhesion Promotion in Coatings and Sealants: Improves the adhesion of paints, inks, and adhesives to difficult-to-bond substrates like aluminum, stainless steel, and treated plastics.
• Synthesis of Silicone Copolymers: Serves as a reactive monomer or endblocker in the synthesis of novel hybrid silicone-organic polymers with tailored properties.
• Biointerface Engineering: Used to create self-assembled monolayers (SAMs) on sensor surfaces or medical devices to control protein adsorption, cell attachment, or to immobilize biomolecules.

Basic Information

Product Name	11-Phenoxyundecyltrichlorosilane
CAS No.	526204-46-6
Molecular Formula	C23H39Cl3OSi
Molecular Weight	465.99 g/mol
Synonyms	11-Phenoxyundecyltrichlorosilane; Trichloro(11-phenoxyundecyl)silane; Phenoxyundecyltrichlorosilane; (11-Phenoxyundecyl)trichlorosilane; Silane, trichloro(11-phenoxyundecyl)-; U11PhTrCS (abbreviation); 1-Trichlorosilylundec-11-yl phenyl ether
EINECS	Contact for details

Quality Control

Our 11-Phenoxyundecyltrichlorosilane is produced under stringent quality management protocols. Each batch undergoes comprehensive analytical testing including NMR, FT-IR, and GC or HPLC to verify identity, purity, and the absence of critical impurities. We provide Certificates of Analysis (COA) with detailed batch-specific data upon request, ensuring traceability and compliance with your material specifications and R&D requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its moisture-sensitive (hygroscopic) nature, containers must be kept tightly sealed under an inert atmosphere (argon or nitrogen) after opening. Keep away from strong acids and incompatible organic solvents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Purity (GC or HPLC)	≥ 95.0%
Chloride Content	22.5 - 23.5% (Theoretical: ~22.8%)
Water Content (KF)	≤ 0.5%

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