Description

Heptamethylphenyltrisiloxane is a specialized organosilicon compound with a unique phenyl-modified trisiloxane structure. This chemical is valued for its role as a versatile intermediate and functional additive, offering a balance of silicone fluid properties with enhanced compatibility and reactivity. It is primarily sought by manufacturers in the silicone polymer, personal care, and specialty lubricant industries for applications requiring tailored surface activity and thermal stability. The compound, CAS NO 72451-53-7, enables the synthesis of advanced materials with specific performance characteristics.

Application

• Key intermediate in the synthesis of phenyl-modified silicone oils and resins.
• Functional additive in high-performance lubricants and greases for enhanced thermal stability.
• Reactive modifier in silicone-based release coatings and pressure-sensitive adhesives.
• Ingredient in personal care formulations, such as hair conditioners and skin care products, for improved feel and spreadability.
• Used in the production of silicone surfactants and defoamers for industrial processes.
• Component in specialty sealants and encapsulants requiring specific refractive index or gas permeability properties.
• Starting material for creating custom siloxane architectures in advanced material research and development.

Basic Information

Product Name	Heptamethylphenyltrisiloxane
CAS No.	72451-53-7
Molecular Formula	C13H26O2Si3
Molecular Weight	298.60 g/mol
Synonyms	1,1,1,3,5,5,5-Heptamethyl-3-phenyltrisiloxane; Trisiloxane, 1,1,1,3,5,5,5-heptamethyl-3-phenyl-; Phenylheptamethyltrisiloxane; MD'M; Heptamethylphenyl trisiloxane; Phenyl Modified Trisiloxane; Silicone Fluid AK 3-10P
EINECS	Contact for details

Quality Control

Our Heptamethylphenyltrisiloxane is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including assay by GC or HPLC and identity confirmation by FT-IR and NMR spectroscopy, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing all relevant specifications are available upon request to support your quality assurance protocols.

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 acids and incompatible materials such as strong oxidizing agents. The container must be kept tightly sealed to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 97.0%
Refractive Index (n20D)	1.430 - 1.440
Density (20°C)	0.95 - 1.00 g/cm³

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