Description

Hydroxytriphenylsilane is a versatile organosilicon compound that serves as a key intermediate in advanced material synthesis. Its value lies in its ability to act as a precursor for silsesquioxanes and as a versatile building block for modifying surface properties and polymer backbones. This product is essential for manufacturers in the electronics, specialty polymers, and pharmaceutical intermediates sectors seeking to enhance material performance.

Application

• Precursor for Polyhedral Oligomeric Silsesquioxanes (POSS): A fundamental starting material for synthesizing POSS cages, which are used as nanoscale additives to improve the thermal and mechanical properties of polymers.
• Surface Modification Agent: Used to functionalize silica, glass, and other oxide surfaces, imparting hydrophobic or specific reactive characteristics for coatings and composites.
• Silicone Resin Intermediate: Employed in the production of heat-resistant and dielectric silicone resins for electronic encapsulants and protective coatings.
• Coupling Agent in Polymer Blends: Acts as a compatibilizer to improve adhesion between organic polymers and inorganic fillers.
• Pharmaceutical & Agro-chemical Synthesis: Serves as a protected silanol group or as a reagent in the synthesis of complex molecules for active ingredients.
• Lithography and Semiconductor Processing: Investigated for use in photoresists and as a molecular layer deposition (MLD) precursor for thin-film applications.

Basic Information

Product Name	Hydroxytriphenylsilane
CAS No.	16527-35-8
Molecular Formula	C18H16OSi
Molecular Weight	276.40 g/mol
Synonyms	Triphenylsilanol; Silanol, triphenyl-; Triphenylhydroxysilane; Hydroxytriphenylsilicon; TPS-OH; Phenylsilicic acid, triphenyl-; NSC 163083; Triphenylsilyl alcohol
EINECS	240-632-8

Quality Control

Our Hydroxytriphenylsilane is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including assay by titration or HPLC, to ensure high chemical purity and consistency. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee it meets your specific application 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); keep the container tightly sealed under an inert atmosphere such as nitrogen for long-term storage to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	150 - 154 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm

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