Description

3-(4-Formylphenoxy)Propyltrimethoxysilane is a specialized organosilane coupling agent featuring a reactive aldehyde (formyl) group and hydrolyzable methoxysilyl functionalities. This unique bifunctional structure is critical for creating stable covalent bonds between inorganic substrates and organic polymers, significantly enhancing composite material performance. It is essential for manufacturers in the advanced materials, coatings, and adhesive industries seeking to improve interfacial adhesion, mechanical strength, and durability in their products.

Application

• Surface Modification Agent: Primarily used to functionalize glass, silica, metals, and other inorganic surfaces, introducing aldehyde groups for further chemical grafting.
• Adhesion Promoter in Coatings and Sealants: Enhances the bonding of epoxy, polyurethane, and acrylic coatings to challenging substrates like glass, aluminum, and galvanized steel.
• Reinforcing Filler Treatment: Treats silica, clay, and other mineral fillers in rubber and plastic composites (e.g., tires, engineering plastics) to improve dispersion and interfacial strength.
• Fiber Sizing for Composites: Applied as a coupling agent on glass or carbon fibers to improve resin matrix adhesion in fiber-reinforced polymers (FRP).
• Immobilization Linker: The aldehyde group serves as an anchor point for immobilizing enzymes, antibodies, or catalysts onto solid supports for biotechnological and diagnostic applications.
• Crosslinking Agent: Used in the synthesis of hybrid organic-inorganic materials, sol-gel processes, and specialty silicone resins.

Basic Information

Item	Details
Product Name	3-(4-Formylphenoxy)Propyltrimethoxysilane
CAS No.	72136-46-0
Molecular Formula	C13H20O5Si
Molecular Weight	284.38 g/mol
Synonyms	(3-(4-Formylphenoxy)propyl)trimethoxysilane; 4-Formylphenoxypropyltrimethoxysilane; p-Formylphenoxypropyltrimethoxysilane; Trimethoxy[3-(4-formylphenoxy)propyl]silane; Aldehyde-functional silane; Silane coupling agent KH-AL; A-1438 (Potential trade designation); 3-(p-Formylphenoxy)propyltrimethoxysilane
EINECS	Contact for details

Quality Control

Our production of 3-(4-Formylphenoxy)Propyltrimethoxysilane adheres to a stringent quality management system. Every batch undergoes comprehensive analytical testing, including assay (GC/HPLC), identity confirmation (IR, NMR), and purity verification, to ensure consistency and reliability. Certificates of Analysis (COA) documenting all critical parameters are available upon request, supporting your quality assurance and regulatory compliance needs.

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 compound is hygroscopic (moisture-sensitive). Keep the container tightly sealed under a dry inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis and maintain product integrity. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0%
Refractive Index (n20D)	1.480 - 1.490
Density (20°C)	1.08 - 1.12 g/cm³

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