Description

Diphenyldiacetoxysilane is a versatile organosilicon compound that serves as a key intermediate in advanced material synthesis. Its bifunctional structure, featuring both phenyl and acetoxy groups, makes it a valuable reagent for introducing silicon-phenyl linkages and for acting as a cross-linking or surface-modifying agent. This product is essential for manufacturers in the silicone polymer, specialty coatings, and electronics industries seeking to enhance material properties like thermal stability, hydrophobicity, and adhesion.

Application

• Silicone Resin & Polymer Synthesis: Acts as a monomer or cross-linking agent for producing high-performance phenyl-containing silicone resins with improved heat resistance and optical clarity.
• Surface Modification & Coupling Agent: Used to treat inorganic fillers (e.g., silica, glass) or surfaces to improve compatibility and adhesion with organic polymer matrices in composite materials.
• Electronic Encapsulants & Potting Compounds: A precursor in formulations for protective coatings and encapsulants in semiconductor and LED packaging, offering excellent dielectric properties and moisture resistance.
• Specialty Release Coatings & Lubricants: Employed in the development of high-temperature, non-stick release coatings for industrial molding and low-friction lubricant additives.
• Adhesive & Sealant Formulations: Enhances the thermal and chemical resistance of silicone-based adhesives and sealants used in automotive, aerospace, and construction applications.
• Pharmaceutical & Agro-chemical Intermediates: Serves as a building block in the synthesis of more complex organosilicon molecules for specialized chemical applications.

Basic Information

Product Name	Diphenyldiacetoxysilane
CAS No.	2565-07-3
Molecular Formula	C16H16O4Si
Molecular Weight	300.38 g/mol
Synonyms	Diacetoxydiphenylsilane; Diphenylsilyl diacetate; Silane, diacetoxydiphenyl-; Acetic acid, diphenylsilylene ester; Diphenyl diacetoxysilane; Diphenylbis(acetoxy)silane; (Acetyloxy)diphenylsilanol acetate; EINECS 219-901-8
EINECS	219-901-8

Quality Control

Our Diphenyldiacetoxysilane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatographic purity analysis and identity confirmation, to ensure it meets precise specifications and consistent performance for your applications. A Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and quality assurance.

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 (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation by atmospheric moisture. Keep away from incompatible materials such as strong bases, acids, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Density (at 20°C)	~1.15 g/cm³
Refractive Index (n20D)	~1.520 - 1.530

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