Description

Diphenylsilanol is a versatile organosilicon intermediate characterized by its reactive silanol (-SiOH) group. This compound matters for its crucial role in modifying material surfaces and acting as a building block for more complex siloxane polymers and silicone resins. Industries such as specialty chemicals, pharmaceuticals, and advanced materials rely on Diphenylsilanol CAS NO 5906-79-6 for synthesis, coupling, and surface treatment applications.

Application

• Silicone Resin & Polymer Synthesis: A key monomer or chain terminator in the production of phenyl-modified silicone oils, resins, and elastomers, imparting thermal stability and specific refractive indices.
• Surface Modification & Coupling Agent: Used to treat inorganic surfaces like silica, glass, or metals to improve adhesion and compatibility with organic polymers in composite materials.
• Pharmaceutical & Agrochemical Intermediates: Serves as a precursor in the synthesis of active pharmaceutical ingredients (APIs) and specialty agrochemicals requiring organosilicon motifs.
• Adhesive & Sealant Formulations: Incorporated as an additive or reactive component to enhance the performance, stability, and bonding characteristics of high-performance adhesives and sealants.
• Protective Coatings: Utilized in the formulation of heat-resistant and chemically inert coatings for industrial and electronic applications.
• Research & Development: Employed in academic and industrial R&D for exploring new organosilicon chemistry, material science, and catalytic processes.

Basic Information

Product Name	Diphenylsilanol
CAS No.	5906-79-6
Molecular Formula	C12H12OSi
Molecular Weight	200.31 g/mol
Synonyms	Diphenylhydroxysilane; Diphenylsilicon hydroxide; Hydroxydiphenylsilane; Silanol, diphenyl-; DPS; Diphenylsilanediol (note: often refers to the dihydroxy form); Phenylsilanediol (partial synonym); Bis(phenyl)silanol
EINECS	227-612-9

Quality Control

Our Diphenylsilanol is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and consistency. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties 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). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and potential degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or flakes
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%

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