Description

1,3-Diphenyl-1,1,3,3-Tetrakis(Dimethylsiloxy)Disiloxane is a specialized organosilicon compound, specifically a phenyl-substituted disiloxane derivative, known for its unique silicone-based structure. This chemical is valued for its role as a versatile intermediate and functional additive, imparting specific thermal and surface-modifying properties to advanced materials. It is primarily sought by manufacturers in the silicone polymer, specialty coatings, and high-performance resin industries for product development and formulation enhancement.

Application

• Silicone Resin & Polymer Modification: Acts as a cross-linking agent or chain extender to enhance thermal stability, flexibility, and mechanical properties of silicone-based polymers.
• Release Coatings & Molding Agents: Used in formulations for non-stick coatings, mold release agents, and pressure-sensitive adhesives due to its low surface energy characteristics.
• Specialty Additive for Coatings: Incorporated into high-performance coatings to improve water repellency, gloss, and chemical resistance.
• Intermediate for Silicone Fluids: Serves as a key building block in the synthesis of tailored phenyl-containing silicone oils and fluids for high-temperature applications.
• Electronic Encapsulants & Potting Compounds: Utilized in formulations designed to protect electronic components, offering good dielectric properties and thermal endurance.
• Research & Development (R&D): Employed in academic and industrial R&D for developing novel silicone hybrids and advanced material systems.

Basic Information

Product Name	1,3-Diphenyl-1,1,3,3-Tetrakis(Dimethylsiloxy)Disiloxane
CAS No.	66817-59-2
Molecular Formula	C20H38O7Si6
Molecular Weight	575.06 g/mol
Synonyms	1,3-Diphenyl-1,1,3,3-tetrakis(dimethylsiloxy)disiloxane; Tetrakis(dimethylsiloxy)-1,3-diphenyldisiloxane; Phenyl T-Structure Siloxane; Disiloxane, 1,3-diphenyl-1,1,3,3-tetrakis(dimethylsiloxy)-; Phenylsilsesquioxane precursor; DPS-T4; Phenyl Modified Siloxane
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards and batch-to-batch consistency. Quality is verified through advanced analytical techniques including GC, HPLC, and NMR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and specific impurity profiles is provided with each shipment and is available upon request.

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 an inert atmosphere (e.g., nitrogen or argon) to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.430 - 1.450
Density (20°C)	1.00 - 1.10 g/mL

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