Description

Trimethoxy(3-Phenoxypropyl)Silane (CAS NO 61464-03-7) is a versatile organosilicon coupling agent characterized by its unique hybrid structure combining a silane head with a phenoxypropyl linker. This compound is essential for creating durable chemical bridges between inorganic substrates and organic polymers, significantly enhancing adhesion, mechanical strength, and environmental resistance. It is a critical raw material for formulators and manufacturers in the coatings, adhesives, sealants, and advanced composite materials industries seeking to improve product performance and longevity.

Application

• As a key coupling agent and adhesion promoter in epoxy, polyurethane, and acrylic-based coatings and adhesives.
• Surface modification of glass fibers, minerals, and metal oxides to improve compatibility with polymer matrices in composite materials.
• Formulation of waterproofing and corrosion-resistant treatments for concrete, masonry, and metal surfaces.
• Manufacture of silicone-modified polymers and resins to impart flexibility, weather resistance, and thermal stability.
• Used as a crosslinking agent or reactive intermediate in the synthesis of specialized silicon-based chemicals and materials.
• Enhancement of filler dispersion and reinforcement in rubber and plastic compounds.

Basic Information

Product Name	Trimethoxy(3-Phenoxypropyl)Silane
CAS No.	61464-03-7
Molecular Formula	C12H20O5Si
Molecular Weight	272.37 g/mol
Synonyms	3-Phenoxypropyltrimethoxysilane; (3-Phenoxypropyl)trimethoxysilane; Phenoxypropyltrimethoxysilane; Silane, trimethoxy(3-phenoxypropyl)-; Dynasylan® 9896; KH-581; γ-Phenoxypropyltrimethoxysilane; 3-(Trimethoxysilyl)propyl phenyl ether
EINECS	262-828-5

Quality Control

Our Trimethoxy(3-Phenoxypropyl)Silane is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including gas chromatography (GC) and infrared spectroscopy (IR), to ensure high purity and consistent performance. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all relevant specifications. Our quality commitment ensures the material meets the stringent requirements for industrial and specialty chemical applications.

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 product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent hydrolysis and maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Refractive Index (n20D)	1.470 - 1.480
Density (20°C)	1.06 - 1.10 g/cm³

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