Description

Silane, Trichloro(Phenylthio)- CAS NO 7579-91-1 is a specialized organosilicon compound featuring a phenylthio group attached to a trichlorosilane core. This unique structure makes it a valuable intermediate for introducing sulfur-containing functional groups into silicon-based materials. It is primarily sought after by R&D chemists and process engineers in advanced material synthesis. Key industrial applications include its use as a coupling agent and precursor in the production of specialty silicones, surface modifiers, and functional polymers.

Application

• Silane Coupling Agent: Used to enhance adhesion between organic polymers and inorganic surfaces like glass, metals, or minerals, particularly where sulfur functionality is beneficial.
• Specialty Silicone Synthesis: Serves as a key monomer or intermediate in the production of sulfur-modified silicones with tailored properties such as altered reactivity or compatibility.
• Surface Modification: Applied to modify the surface properties of fillers (e.g., silica) to improve dispersion and interaction within rubber or composite matrices.
• Pharmaceutical & Agro-chemical Intermediates: Utilized in the research and development of active ingredients or advanced delivery systems that require specific organosilicon architectures.
• Polymer Functionalization: Acts as a grafting agent to introduce silane and thioether groups onto polymer backbones, altering chemical and physical characteristics.
• Adhesive & Sealant Formulations: Incorporated to improve the bonding performance, moisture resistance, and durability of high-performance adhesives and sealants.

Basic Information

Product Name	Silane, Trichloro(Phenylthio)-
CAS No.	7579-91-1
Molecular Formula	C6H5Cl3SSi
Molecular Weight	243.63 g/mol
Synonyms	Phenylthiotrichlorosilane; (Phenylthio)trichlorosilane; Trichloro(phenylthio)silane; Silane, trichloro(phenylthio)-; Trichlorophenylthiosilane; Phenyltrichlorothiosilane; Thiocyanatotrichlorosilane (related); Phenyl mercaptotrichlorosilane
EINECS	231-485-3

Quality Control

Our Trichloro(Phenylthio)silane is manufactured under strict quality protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including Gas Chromatography (GC) and NMR to verify identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical properties is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its hygroscopic and moisture-sensitive nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 20°C)	~1.35 g/cm³
Refractive Index (n20D)	~1.55
Chloride Content	~43.7% (Theoretical)

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