Description

7-Triethoxysilylpropoxy-5-Hydroxyflavone, 50% In Xylene is a specialized organosilane-functionalized flavonoid derivative, designed to act as a high-performance coupling agent and adhesion promoter. This compound matters because it uniquely combines the UV-absorbing and antioxidant properties of a hydroxyflavone with the reactive triethoxysilyl group, enabling covalent bonding to inorganic substrates like glass, metals, and minerals. It is primarily needed by formulators in the coatings, adhesives, and advanced composites industries seeking to enhance the durability, weather resistance, and interfacial strength of their products.

Application

• Adhesion Promoter in Silicone Sealants & Coatings: Enhances bond strength to difficult substrates like glass, aluminum, and galvanized steel by forming a stable siloxane network.
• Surface Modifier for Nanoparticles & Fillers: Used to functionalize silica, titanium dioxide, or other metal oxide particles to improve dispersion and compatibility in polymer matrices.
• UV-Stabilizing Additive for Protective Coatings: Leverages the inherent UV absorption of the flavone moiety to protect underlying materials from photodegradation while providing surface bonding.
• Primer for Automotive & Aerospace Composites: Applied as a pretreatment to improve the adhesion of epoxy or polyurethane coatings to fiberglass or carbon fiber composites.
• Crosslinking Agent in Hybrid Organic-Inorganic Polymers (ORMOSILs): Serves as a reactive monomer in sol-gel processes to create materials with tailored mechanical and optical properties.
• Intermediate for Advanced Material Synthesis: Used in R&D for creating novel silane-coupled molecules with specific biological or chemical functionalities.

Basic Information

Product Name	7-Triethoxysilylpropoxy-5-Hydroxyflavone, 50% In Xylene
CAS No.	945761-08-0
Molecular Formula	C26H34O7Si
Molecular Weight	486.64 g/mol
Synonyms	5-Hydroxy-7-(3-(triethoxysilyl)propoxy)-2-phenyl-4H-chromen-4-one; 5-Hydroxy-7-(3-triethoxysilylpropoxy)flavone; Flavone silane derivative; Silane-coupled hydroxyflavone; Adhesion promoter with UV absorber; Organosilane flavonoid; [3-(5-Hydroxy-4-oxo-2-phenyl-4H-chromen-7-yl)oxy]propyltriethoxysilane
EINECS	Contact for details

Quality Control

Our 7-Triethoxysilylpropoxy-5-Hydroxyflavone, 50% In Xylene is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for assay and impurity profile, NMR and FT-IR for structural confirmation, and Karl Fischer titration for moisture content. Certificates of Analysis (COA) detailing all specifications are available upon request to ensure full traceability and compliance with your formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. The product is supplied in xylene, which is a flammable solvent and incompatible with strong acids and oxidizing agents. Keep container tightly sealed when not in use to prevent evaporation and moisture absorption.

Specification

Item	Specification
Appearance	Clear, yellow to amber solution
Assay (Active Silane)	48.0 - 52.0 % (w/w)
Solvent	Xylene
Identification (IR)	Conforms to reference spectrum
Purity (HPLC, Area %)	≥ 95.0% (of active component)
Water Content (Karl Fischer)	≤ 0.5 % (w/w)

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