Description

11-(Pentafluorophenoxy)Undecyltrimethoxysilane, 95% is a specialized organosilane coupling agent featuring a reactive pentafluorophenoxy group and a long undecyl chain terminated with trimethoxysilane. This compound is engineered to provide a robust, covalent linkage between inorganic substrates and organic polymers, particularly in demanding environments. It is essential for manufacturers and R&D professionals in the advanced materials, electronics, and specialty coatings sectors who require enhanced surface adhesion, chemical resistance, and tailored interfacial properties.

Application

• Surface Modification Agent for glass, silica, metals, and other inorganic fillers to improve compatibility with polymer matrices.
• Adhesion Promoter in high-performance epoxy, polyimide, and silicone-based coatings and adhesives for electronics and aerospace applications.
• Crosslinking Agent in the synthesis of hybrid organic-inorganic materials (ORMOSILs) for optical, sensor, and membrane technologies.
• Primer Layer Formulation for creating stable, hydrophobic, and chemically resistant surfaces on semiconductors and medical devices.
• Functional Monomer for grafting onto nanoparticles to enable further bio-conjugation or specific chemical reactions.
• Research & Development of novel silane chemistry, surface science studies, and development of custom coupling agents.

Basic Information

Product Name	11-(Pentafluorophenoxy)Undecyltrimethoxysilane, 95%
CAS No.	944721-47-5
Molecular Formula	C₂₀H₃₁F₅O₄Si
Molecular Weight	458.55 g/mol
Synonyms	11-(Pentafluorophenoxy)undecyltrimethoxysilane; Undecyltrimethoxysilane, 11-(pentafluorophenoxy)-; 1-(Pentafluorophenoxy)-11-(trimethoxysilyl)undecane; (11-(Pentafluorophenoxy)undecyl)trimethoxysilane; Pentafluorophenoxyundecyltrimethoxysilane; Silane coupling agent PFPh-UTMS; PFPh-UTMS; PFPhO(CH₂)₁₁Si(OCH₃)₃
EINECS	Contact for details

Quality Control

Our 11-(Pentafluorophenoxy)Undecyltrimethoxysilane, 95% is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets precise specifications and consistent performance. Certificates of Analysis (COA) detailing purity, identity, and key physical properties are available upon request for quality assurance and regulatory compliance.

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); ensure containers are sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis and maintain product integrity. Keep away from strong bases and incompatible organic solvents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20/D)	1.440 - 1.450
Density (20°C)	1.10 - 1.20 g/mL

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