Description

Octaphenylcyclotetrasilane is a high-purity organosilicon compound characterized by its unique cyclic tetrasilane core fully substituted with phenyl groups. This structure makes it a valuable precursor and building block in advanced materials science, particularly for synthesizing silicon-based polymers and ceramics. It is essential for R&D and production in sectors requiring tailored silicon-carbon frameworks with specific thermal and electronic properties.

Application

• Precursor for Silicon Carbide (SiC) Ceramics: Serves as a polymeric precursor for the production of high-performance SiC fibers and composites.
• Photoresist & Semiconductor Materials: Used in the development of novel photoresists and silicon-containing polymers for advanced lithography processes.
• Synthesis of Polysilanes & Dendrimers: Acts as a key monomer or cross-linking agent for creating specialized polysilanes and dendritic structures.
• Model Compound in Organosilicon Chemistry: Employed in academic and industrial research to study the reactivity and properties of cyclosilanes.
• Additive for Specialty Polymers: Incorporated to modify the thermal stability, refractive index, or mechanical properties of engineering plastics.
• Intermediate for Functional Coatings: Used in formulating coatings that require enhanced heat resistance or specific dielectric properties.

Basic Information

Product Name	Octaphenylcyclotetrasilane
CAS No.	1065-95-8
Molecular Formula	C48H40Si4
Molecular Weight	717.19 g/mol
Synonyms	Cyclotetrasilane, octaphenyl-; Octaphenyltetrasilacyclobutane; Tetraphenylcyclotetrasilane (common misnomer); Perphenylcyclotetrasilane; 1,1,2,2,3,3,4,4-Octaphenylcyclotetrasilane; Cyclic tetrakis(phenylsilane); Phenylated cyclotetrasilane
EINECS	213-959-4

Quality Control

Our Octaphenylcyclotetrasilane is manufactured under controlled conditions to ensure batch-to-batch consistency and high purity. Quality is verified through a suite of analytical techniques including HPLC, NMR, and elemental analysis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

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 material is light-sensitive (store away from light) and should be handled under an inert atmosphere to prevent potential oxidation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	285 - 295 °C

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