Description

3,5,7-Triphenylnonamethylpentasiloxane is a specialized organosilicon compound belonging to the class of phenyl-modified siloxanes. This chemical is valued for its unique combination of thermal stability, hydrophobicity, and compatibility with organic polymers, making it a versatile performance additive. It is primarily sought after by formulators and researchers in the advanced materials, specialty coatings, and electronics industries seeking to modify surface properties and enhance material performance.

Application

• Advanced Material Additive: Used as a surface modifier or compatibilizer in high-performance silicones and polymer blends to improve thermal and oxidative stability.
• Specialty Coatings & Resins: Functions as a flow control agent or hydrophobic additive in protective coatings, release coatings, and high-temperature resistant resins.
• Electronics & Encapsulation: Employed in potting compounds, encapsulants, and dielectric materials for its insulating properties and thermal management capabilities.
• Lubricant & Grease Formulation: Serves as a base fluid or additive in high-temperature lubricants and specialty greases due to its low volatility and wide liquid range.
• Adhesive & Sealant Science: Acts as a plasticizer or property modifier in silicone-based adhesives and sealants to enhance flexibility and environmental resistance.
• Research & Development: Utilized as a key intermediate or model compound in organosilicon chemistry research for developing new materials.

Basic Information

Product Name	3,5,7-Triphenylnonamethylpentasiloxane
CAS No.	6689-19-6
Molecular Formula	C33H52O4Si5
Molecular Weight	665.28 g/mol
Synonyms	Pentasiloxane, 1,1,1,3,5,7,9,9,9-nonamethyl-3,5,7-triphenyl-; Nonamethyl-3,5,7-triphenylpentasiloxane; 1,1,1,3,5,7,9,9,9-Nonamethyl-3,5,7-triphenylpentasiloxane; Phenyl-modified pentasiloxane; Tris(phenyl)nonamethylpentasiloxane; MD3M' (where D=(CH3)(C6H5)SiO and M'=CH3SiO1/2); A phenyl T-type branched siloxane
EINECS	Contact for details

Quality Control

Our production of 3,5,7-Triphenylnonamethylpentasiloxane adheres to strict quality management protocols. Each batch undergoes rigorous analytical testing, including chromatographic purity analysis and structural confirmation, to ensure consistency and compliance with customer specifications. Certificates of Analysis (COA) detailing batch-specific results are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Purity (GC or HPLC)	≥ 95.0%
Refractive Index (n20D)	1.480 - 1.500
Density (g/mL at 20°C)	1.00 - 1.05

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