Description

1,1,3,3-Tetraphenyldisiloxane Diol is a specialized organosilicon compound featuring a central disiloxane bridge flanked by phenyl groups and terminal hydroxyl functionalities. This unique structure makes it a valuable intermediate for synthesizing advanced silicone polymers, resins, and hybrid materials with enhanced thermal stability and mechanical properties. It is primarily sought by R&D chemists and manufacturers in the silicone elastomer, high-performance coatings, and electronics encapsulation industries.

Application

• Silicone Polymer Synthesis: A key monomer or chain extender for producing phenyl-containing silicone resins and elastomers.
• High-Temperature Resins: Used in the formulation of heat-resistant coatings, adhesives, and composite materials for aerospace and automotive applications.
• Electronic Encapsulants: Serves as a building block for silicones used in potting and protecting sensitive electronic components.
• Hybrid Organic-Inorganic Materials: Facilitates the creation of sol-gel precursors for advanced ceramics and optical materials.
• Surface Modification: Can be used to introduce phenylsiloxane groups onto surfaces or particles to alter hydrophobicity and compatibility.
• Pharmaceutical & Agrochemical Intermediates: Acts as a specialized synthon in the development of active ingredients or delivery systems.

Basic Information

Product Name	1,1,3,3-Tetraphenyldisiloxane Diol
CAS No.	1104-93-4
Molecular Formula	C24H22O3Si2
Molecular Weight	414.61 g/mol
Synonyms	1,1,3,3-Tetraphenyl-1,3-disiloxanediol; Tetraphenyldisiloxanediol; Dihydroxytetraphenyldisiloxane; Bis(hydroxydiphenylsilyl) ether; 1,3-Dihydroxy-1,1,3,3-tetraphenyldisiloxane; DPS Diol (common abbreviation); 1,1,3,3-Tetraphenyldisiloxane-1,3-diol
EINECS	214-165-0

Quality Control

Our 1,1,3,3-Tetraphenyldisiloxane Diol is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by FT-IR and NMR spectroscopy, to ensure it meets precise customer specifications. A Certificate of Analysis (COA) detailing all relevant parameters is provided with every shipment.

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). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product quality.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%

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