Description

Tris(Trimethylsilyloxy)Silanol CAS NO 17477-97-3 is a specialized organosilicon compound featuring a central silicon atom bonded to three trimethylsiloxy groups and one hydroxyl group. This unique structure makes it a valuable intermediate and functionalizing agent in advanced material synthesis. It is primarily sought after by manufacturers in the silicone polymer, specialty coatings, and electronics industries for its ability to modify surface properties and act as a cross-linking precursor.

Application

• Silicone Resin & Polymer Modification: Acts as a key intermediate or chain extender in the synthesis of high-performance silicone resins, rubbers, and elastomers, imparting specific mechanical and thermal properties.
• Surface Treatment & Coupling Agent: Used to functionalize inorganic fillers (e.g., silica, glass) and surfaces to improve compatibility and adhesion in composite materials and coatings.
• Electronics & Semiconductor Precursor: Serves as a precursor in chemical vapor deposition (CVD) processes for depositing silicon-containing thin films used in microelectronics and semiconductor manufacturing.
• Hydrophobic Coatings: Employed in formulations for creating water-repellent and anti-fouling coatings on various substrates, including textiles, optics, and construction materials.
• Adhesive & Sealant Formulations: Functions as an adhesion promoter and cross-linking component in high-performance silicone-based adhesives and sealants.
• Pharmaceutical & Cosmetic Intermediates: Utilized in the synthesis of siloxane-based compounds for controlled-release drug delivery systems and personal care product ingredients.

Basic Information

Product Name	Tris(Trimethylsilyloxy)Silanol
CAS No.	17477-97-3
Molecular Formula	C9H28O4Si4
Molecular Weight	312.68 g/mol
Synonyms	Tris(trimethylsiloxy)silanol; Silanol, tris(trimethylsiloxy)-; Tris-O-(trimethylsilyl) silanol; Tris(trimethylsiloxy)silicon hydroxide; TTSS; 1-Hydroxytris(trimethylsiloxy)silane; (Hydroxy)tris(trimethylsiloxy)silane; Tris(trimethylsilyloxy)silyl alcohol
EINECS	241-493-7

Quality Control

Our Tris(Trimethylsilyloxy)Silanol is manufactured under stringent quality management systems. Each batch undergoes rigorous analytical testing, including chromatographic purity assays and identity confirmation, to ensure it meets precise customer specifications and industry standards. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles 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 a controlled room temperature (typically 15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and degradation. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC or HPLC)	≥ 97.0%
Water Content (Karl Fischer)	≤ 0.5%
Chloride Content	≤ 100 ppm
Refractive Index (n20D)	1.390 - 1.410
Density (g/mL at 20°C)	0.88 - 0.92

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