Description

Tetrakis(Trimethylsiloxy)Silane is a highly functionalized organosilicon compound, specifically a silane coupling agent with four reactive trimethylsiloxy groups. This unique molecular structure makes it a valuable precursor and intermediate for synthesizing advanced silicone polymers, resins, and surface-modifying agents. It is essential for manufacturers in the silicone elastomer, specialty coatings, and electronics industries seeking to enhance material properties like hydrophobicity, thermal stability, and adhesion.

Application

• Silicone Resin & Polymer Synthesis: A key monomer for producing high-performance silicone resins with enhanced cross-linking density for coatings and encapsulants.
• Surface Modification & Coupling Agent: Used to treat inorganic fillers (e.g., silica, glass) to improve dispersion and compatibility in silicone rubber and plastic composites.
• Hydrophobic Coatings: Serves as a precursor for creating water-repellent, anti-stick, and release coatings on various substrates.
• Electronics & Semiconductor Industry: Employed in the formulation of dielectric materials, passivation layers, and as a precursor in chemical vapor deposition (CVD) processes.
• Adhesives & Sealants: Imparts improved weather resistance and adhesion properties in high-performance silicone-based formulations.
• Pharmaceutical & Cosmetic Intermediates: Used in the synthesis of specialized silicone derivatives for controlled-release systems and personal care products.

Basic Information

Product Name	Tetrakis(Trimethylsiloxy)Silane
CAS No.	3555-47-3
Molecular Formula	C12H36O4Si5
Molecular Weight	384.86 g/mol
Synonyms	Silane, tetrakis(trimethylsiloxy)-; Tetrakis(trimethylsilyloxy)silane; Tetrakis(trimethylsiloxy)silicon; Silicon tetrakis(trimethylsilanolate); TTMS; TTMSS; 2,2,2,2-Tetrakis(trimethylsiloxy)-1,3,5,7,2,4,6,8-tetraoxatetrasilecane
EINECS	222-607-8

Quality Control

Our Tetrakis(Trimethylsiloxy)Silane is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including Gas Chromatography (GC) and Nuclear Magnetic Resonance (NMR), to ensure high purity and consistent performance. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee compliance with your technical 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). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 20°C)	0.92 - 0.96 g/cm³
Refractive Index (n20D)	1.390 - 1.400

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