Description

Bis(4-Triethoxysilylpropoxy-3-Methoxyphenyl) is a high-purity organosilane coupling agent designed for advanced material science applications. This compound is valued for its dual functionality, providing both reactive silane groups and aromatic methoxy moieties to enhance adhesion and compatibility at organic-inorganic interfaces. It is essential for R&D and production teams in the adhesives, advanced composites, and specialty coatings sectors seeking to improve material performance and durability.

Application

• Adhesive & Sealant Formulations: Acts as a cross-linking and adhesion promoter, particularly for bonding glass, metals, and minerals to organic polymers.
• Fiber-Reinforced Composites: Used as a sizing agent or surface treatment for glass, carbon, or aramid fibers to improve resin matrix compatibility and interfacial strength.
• Specialty Coatings & Inks: Enhances the adhesion, scratch resistance, and weatherability of functional coatings on difficult substrates.
• Hybrid Organic-Inorganic Materials (ORMOSILs): Serves as a key precursor in sol-gel chemistry for creating advanced ceramics, optical materials, and protective layers.
• Electronics & Encapsulation: Improves the performance and reliability of electronic encapsulants and underfill materials by promoting adhesion to various components.
• Rubber & Elastomer Modification: Functions as a coupling agent in silica-filled rubber compounds to enhance mechanical properties and reduce hysteresis.

Basic Information

Product Name	Bis(4-Triethoxysilylpropoxy-3-Methoxyphenyl)
CAS No.	947329-82-0
Molecular Formula	C32H52O10Si2
Molecular Weight	652.93 g/mol
Synonyms	Bis[4-(3-triethoxysilylpropoxy)-3-methoxyphenyl]; 1,1'-[Methylenebis(4-hydroxy-3-methoxy-5,1-phenylene)]bis[3-(triethoxysilyl)propane]; 3,3'-[Methylenebis(2-methoxy-4,1-phenylene)bis(oxy)]bis[propyltriethoxysilane]; Bis(4-triethoxysilylpropoxy-3-methoxyphenyl)methane; Organosilane Coupling Agent 947329-82-0
EINECS	Contact for details

Quality Control

Our Bis(4-Triethoxysilylpropoxy-3-Methoxyphenyl) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and FTIR analysis, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance protocols.

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); containers must be kept tightly sealed and under a dry inert atmosphere (e.g., nitrogen) after opening to prevent hydrolysis and maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 97.0%
Refractive Index (n20D)	1.470 - 1.480
Density (g/mL, 20°C)	1.05 - 1.10
Moisture (KF)	≤ 0.5%

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