Description

1,4-Bis(Hydroxydimethylsilyl)Benzene is a key organosilicon intermediate featuring a rigid benzene core symmetrically functionalized with hydroxydimethylsilyl groups. This compound matters for its role as a versatile building block in the synthesis of advanced silicone polymers, resins, and hybrid organic-inorganic materials. It is primarily needed by manufacturers in the electronics, specialty coatings, and high-performance materials sectors seeking to incorporate siloxane linkages with enhanced thermal and mechanical stability.

Application

• Silicone Polymer Synthesis: Serves as a monomer or chain extender for producing high-temperature resistant polysiloxanes and silicone resins.
• Electronic Encapsulants & Adhesives: Used in formulating protective coatings and adhesives for semiconductor devices due to its thermal stability and compatibility.
• Hybrid Material Precursor: Acts as a precursor for sol-gel processes to create silica-based hybrid coatings and composites with organic functionality.
• Crosslinking Agent: Functions as a crosslinker in silicone rubber and sealant formulations to enhance network density and properties.
• Surface Modification: Utilized to modify the surface of inorganic fillers (e.g., silica) to improve dispersion in polymer matrices.
• Specialty Additive: Incorporated as an additive to impart specific release, flow, or surface properties in advanced material formulations.

Basic Information

Product Name	1,4-Bis(Hydroxydimethylsilyl)Benzene
CAS No.	2754-32-7
Molecular Formula	C10H20O2Si2
Molecular Weight	240.44 g/mol
Synonyms	p-Bis(Hydroxydimethylsilyl)Benzene; 1,4-Bis(Dimethylhydroxysilyl)Benzene; Benzene, 1,4-bis[hydroxy(dimethyl)silyl]-; DMS-B18 (trade name); Bis(4-dimethylhydroxysilylphenyl) Ether (related); Hydroxydimethylsilyl Benzene Derivative; p-Phenylene Bis(Dimethylsilanol); 1,4-Phenylenebis(dimethylsilanol)
EINECS	220-406-7

Quality Control

Our production of 1,4-Bis(Hydroxydimethylsilyl)Benzene adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including HPLC, GC, and NMR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment, supporting compliance with relevant industry and regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric moisture. Keep away from incompatible materials such as strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC/GC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Contact for details

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