Description

Diphenyldimethoxysilane is a versatile organosilicon compound widely used as a key intermediate and coupling agent in advanced material synthesis. Its value lies in its ability to introduce phenyl and methoxy functional groups, enabling surface modification, polymer cross-linking, and the creation of hybrid organic-inorganic materials. This product is essential for manufacturers in the silicone polymer, electronics, and specialty coatings industries seeking to enhance material properties like adhesion, thermal stability, and hydrophobicity.

Application

• Silicone Resin & Polymer Intermediate: A crucial monomer for synthesizing phenyl-containing silicone resins, imparting improved thermal stability, refractive index, and radiation resistance to final polymers.
• Surface Treatment & Coupling Agent: Used to modify inorganic surfaces (glass, silica, metals) to improve adhesion and compatibility with organic polymers in composite materials and coatings.
• Electronics & Semiconductor Precursor: Serves as a precursor in the chemical vapor deposition (CVD) or sol-gel processes for producing silicon-based dielectric or protective thin films.
• Hydrophobic Coating Formulations: Imparts water-repellent characteristics to surfaces in construction, automotive, and textile treatments.
• Adhesive & Sealant Additive: Enhances the bonding strength and environmental durability of high-performance adhesives and sealants.
• Pharmaceutical & Agrochemical Intermediates: Utilized in the synthesis of more complex organosilicon molecules for specialized applications.

Basic Information

Product Name	Diphenyldimethoxysilane
CAS No.	6843-66-9
Molecular Formula	C14H16O2Si
Molecular Weight	244.36 g/mol
Synonyms	Dimethoxydiphenylsilane; Diphenyldimethoxy Silane; DPDMS; Silane, dimethoxydiphenyl-; Methoxy(diphenyl)silane; Diphenylsilanediol dimethyl ether; (Dimethoxysilyl)benzene; Phenyl(dimethoxy)silane
EINECS	229-926-3

Quality Control

Our Diphenyldimethoxysilane is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including gas chromatography (GC) for assay and impurity profiling. A Certificate of Analysis (COA) detailing all test results 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 material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Density (at 20°C)	1.06 - 1.08 g/cm³
Refractive Index (n20D)	1.540 - 1.545
Water Content (Karl Fischer)	≤ 0.1%

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