Description

Hydroxymethyldiphenylsilane CAS NO 778-25-6 is a versatile organosilicon compound featuring both a reactive silanol group and phenyl substituents. This unique structure makes it a valuable intermediate for synthesizing advanced silicone polymers, resins, and surface-modifying agents. It is primarily sought by manufacturers in the silicone elastomer, adhesive, and specialty coating industries for its role in enhancing material properties and enabling custom chemical synthesis.

Application

• Silicone Polymer & Resin Synthesis: A key monomer or intermediate for producing phenyl-containing silicone oils, resins, and high-performance elastomers with improved thermal stability and optical clarity.
• Adhesives & Sealants: Used to modify silicone-based formulations, contributing to enhanced adhesion, flexibility, and environmental resistance in high-end industrial applications.
• Surface Modification & Coupling Agents: Acts as a precursor for silane coupling agents that improve the bond between organic polymers and inorganic materials like glass, metals, or minerals.
• Specialty Coatings: Incorporated into coating formulations to impart water repellency, corrosion resistance, and durable release properties.
• Pharmaceutical & Agrochemical Intermediates: Serves as a building block in the synthesis of more complex organosilicon molecules for specialized applications.
• Research & Development: Utilized in academic and industrial R&D for exploring new organosilicon chemistry and material science applications.

Basic Information

Product Name	Hydroxymethyldiphenylsilane
CAS No.	778-25-6
Molecular Formula	C13H14OSi
Molecular Weight	214.34 g/mol
Synonyms	Hydroxymethyl(diphenyl)silane; (Hydroxymethyl)diphenylsilane; Diphenyl(hydroxymethyl)silane; Diphenylsilanol, methylene derivative; Silanol, hydroxymethyldiphenyl-; NSC 163991
EINECS	212-299-4

Quality Control

Our Hydroxymethyldiphenylsilane is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including assay by GC or HPLC and identification by FT-IR, to ensure it meets precise specifications for purity and consistency. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance with your quality 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 product is hygroscopic (moisture-sensitive). Minimize exposure to air and moisture to maintain product integrity and prevent degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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