Description

1,3-Dimethyl-1,1,3,3-Tetrakis(2-Phenylethoxy)Disiloxane is a specialized organosilicon compound valued for its unique chemical structure, which combines siloxane linkages with aromatic ether functionalities. This compound serves as a versatile intermediate and functional additive, offering enhanced compatibility and performance in advanced material formulations. It is primarily sought by manufacturers in the silicone polymer, specialty coatings, and electronics industries for applications requiring tailored surface properties and thermal stability.

Application

• Silicone Resin & Polymer Modification: Acts as a cross-linking agent or chain extender to impart specific rheological and mechanical properties.
• High-Performance Release Coatings: Used in formulations for industrial and food-grade release liners due to its organic compatibility.
• Adhesive & Sealant Additive: Enhances adhesion promotion and moisture resistance in silicone-based adhesive systems.
• Surface Treatment Agent: Provides hydrophobic and oleophobic surface modifications for textiles, glass, and fillers.
• Electronic Encapsulants: Employed as a component in potting compounds and encapsulants for electronic device protection.
• Lubricant & Grease Formulation: Serves as a high-temperature stable base fluid or additive in specialty lubricants.
• Personal Care Ingredients: Functions as a conditioning agent and emollient in high-end cosmetic and hair care products.
• Pharmaceutical Intermediates: Utilized in the synthesis of active pharmaceutical ingredients (APIs) and drug delivery systems.

Basic Information

Product Name	1,3-Dimethyl-1,1,3,3-Tetrakis(2-Phenylethoxy)Disiloxane
CAS No.	83918-67-6
Molecular Formula	C34H44O5Si2
Molecular Weight	588.88 g/mol
Synonyms	Bis[dimethyl(2-phenylethoxy)silyl] Ether; Disiloxane, 1,3-dimethyl-1,1,3,3-tetrakis(2-phenylethoxy)-; Tetrakis(2-phenylethoxy)dimethyldisiloxane; 2-Phenylethoxydimethylsiloxane dimer; Dow Corning® OFX-0193 Fluid (example trade name); Phenethyl Tetrakis(oxy)dimethyldisiloxane; Dimethylbis(phenethyloxy)disiloxane
EINECS	Contact for details

Quality Control

Our 1,3-Dimethyl-1,1,3,3-Tetrakis(2-Phenylethoxy)Disiloxane is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including chromatography and spectroscopy, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing purity, identity, and key physical parameters are provided with every shipment. We support compliance with relevant global regulatory frameworks, including REACH.

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); containers must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Refractive Index (n20/D)	1.510 - 1.520
Density (g/mL, 20°C)	1.05 - 1.10
Water Content (KF)	≤ 0.1%

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