Description

4 4'-Bis(Triethoxysilyl)-1 1'-Biphenyl CAS NO 123640-93-7 is a high-purity organosilane coupling agent featuring a rigid biphenyl core. This compound is engineered to provide superior adhesion and compatibility between organic polymers and inorganic substrates. It is a critical material for manufacturers in the electronics, advanced composites, and specialty coatings industries seeking to enhance material performance and durability.

Application

• Surface Modification Agent: For glass, silica, and metal oxides to improve interfacial bonding in composite materials.
• Adhesion Promoter: In epoxy, polyimide, and other high-performance polymer resins for electronic encapsulants and underfills.
• Crosslinking Agent: In silicone-based materials and hybrid organic-inorganic polymers (ORMOSILs) for enhanced thermal and mechanical properties.
• Precursor for Thin Films: Used in sol-gel processes to create highly crosslinked, stable silicate coatings with low dielectric constants for semiconductor applications.
• Filler Treatment: For nano-silica, clay, and other reinforcing fillers to improve dispersion and stress transfer in composite matrices.
• Research & Development: A key building block in developing novel materials for photonics, sensors, and nanotechnology.

Basic Information

Product Name	4 4'-Bis(Triethoxysilyl)-1 1'-Biphenyl
CAS No.	123640-93-7
Molecular Formula	C26H42O6Si2
Molecular Weight	506.79 g/mol
Synonyms	1,1'-Biphenyl-4,4'-diylbis[triethoxysilane]; 4,4'-Bis(triethoxysilyl)biphenyl; p,p'-Bis(triethoxysilyl)biphenyl; Biphenyl-4,4'-diylbis(triethoxysilane); BTSBP; Bis[4-(triethoxysilyl)phenyl] ether (common misnomer); 4,4'-Di(triethoxysilyl)-1,1'-biphenyl
EINECS	Contact for details

Quality Control

Our production of 4 4'-Bis(Triethoxysilyl)-1 1'-Biphenyl adheres to stringent quality management protocols. Every batch is analyzed using advanced techniques including GC, HPLC, and NMR to ensure high chemical purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with each shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under an inert atmosphere (nitrogen or argon) after opening to prevent hydrolysis and maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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