Description

Diphenylsilanediol is a versatile organosilicon intermediate characterized by its unique silanediol functional group. This compound is essential for synthesizing high-performance silicone polymers and serves as a key building block for siloxane-based materials. It is particularly valuable for manufacturers in the silicone elastomer, resin, and specialty chemical industries seeking to enhance product thermal stability and mechanical properties.

Application

• Silicone Polymer Synthesis: A fundamental monomer for the production of phenyl-containing silicone oils, resins, and rubbers.
• Crosslinking Agent: Used as a reactive intermediate in the formulation of heat-curable silicone elastomers and adhesives.
• Surface Modification: Imparts hydrophobic and release properties to surfaces in coatings and treatment applications.
• Pharmaceutical Intermediates: Serves as a precursor in the synthesis of certain silicon-based active pharmaceutical ingredients (APIs).
• Electronic Encapsulants: Contributes to the formulation of protective silicone gels and encapsulants for electronic components.
• Research & Development: A valuable reagent in organic and organometallic chemistry research for constructing complex silicon architectures.

Basic Information

Product Name	Diphenylsilanediol
CAS No.	947-42-2
Molecular Formula	C12H12O2Si
Molecular Weight	216.31 g/mol
Synonyms	Diphenylsilicon Diol; Diphenylsilane Diol; Dihydroxydiphenylsilane; Silanediol, Diphenyl-; Phenylsilanediol; NSC 163083; Bis(hydroxy)diphenylsilane; Diphenyl Dihydroxy Silane
EINECS	213-426-6

Quality Control

Our Diphenylsilanediol is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including assay, purity, and identity confirmation, to ensure it meets precise specifications for industrial and research applications. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and compliance.

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 product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	145 - 155 °C
Loss on Drying	≤ 1.0 %

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