Description

Phenethyltris(Trimethylsiloxy)Silane is a specialized organosilicon compound that serves as a versatile building block and surface-modifying agent. Its molecular structure, featuring both a phenethyl group and multiple reactive siloxy functionalities, makes it a valuable intermediate for creating advanced silicone polymers and hybrid materials. This product is primarily sought by manufacturers in the silicone resin, specialty coatings, and advanced materials sectors for its ability to impart specific organic character and crosslinking potential to siloxane networks.

Application

• Silicone Resin & Polymer Synthesis: A key monomer or crosslinking agent for producing phenyl-modified silicone resins with enhanced thermal stability and refractive index.
• Surface Modification & Coupling Agent: Used to functionalize inorganic surfaces (e.g., silica, glass) to improve compatibility with organic polymers in composite materials.
• Specialty Release Coatings: Imparts specific release characteristics in pressure-sensitive adhesive and industrial molding applications.
• Hydrophobic Coatings: Contributes to water-repellent properties in protective coatings for electronics, construction, and textiles.
• Adhesive & Sealant Formulations: Acts as an adhesion promoter and property modifier in high-performance silicone-based adhesives and sealants.
• Optical Materials: Utilized in the synthesis of siloxane-based materials for lenses, waveguides, and other optical components due to its potential influence on clarity and refractive properties.
• Pharmaceutical & Cosmetic Intermediates: Serves as a synthetic intermediate for siloxane-based ingredients requiring specific organic side chains.

Basic Information

Product Name	Phenethyltris(Trimethylsiloxy)Silane
CAS No.	211935-21-6
Molecular Formula	C17H36O3Si4
Molecular Weight	400.81 g/mol
Synonyms	Phenethyltris(trimethylsiloxy)silane; Tris(trimethylsiloxy)(2-phenylethyl)silane; 2-Phenylethyltris(trimethylsiloxy)silane; Silane, tris(trimethylsiloxy)(2-phenylethyl)-; (2-Phenylethyl)tris(trimethylsiloxy)silane; Phenethyl Tris(trimethylsiloxy) Silane
EINECS	Contact for details

Quality Control

Our production of Phenethyltris(Trimethylsiloxy)Silane adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analysis, including assay by GC or HPLC and identity confirmation by FT-IR and NMR spectroscopy. Certificates of Analysis (COA) detailing all test results are provided and can be tailored to meet specific customer or regulatory requirements.

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 initial opening to prevent moisture absorption, which may affect product quality and reactivity.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Refractive Index (n20D)	1.430 - 1.440
Density (20°C)	0.92 - 0.96 g/cm³
Water Content (KF)	≤ 0.1%

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