Description

1,1,1,5,5,5-Hexaethyl-3-Methyltrisiloxane is a specialized organosilicon compound belonging to the class of branched trisiloxanes. This chemical serves as a valuable intermediate and functional fluid in advanced material synthesis, offering unique properties derived from its ethyl and methyl substituents. It is primarily needed by manufacturers in the silicone polymers, specialty lubricants, and surface treatment sectors seeking to modify material characteristics.

Application

• Silicone Intermediate: A key building block for synthesizing custom silicone oils, resins, and elastomers with tailored properties.
• Lubricant & Heat Transfer Fluid: Used as a base or additive in high-performance lubricants and thermal fluids due to its stability and low-temperature characteristics.
• Surface Modification Agent: Imparts hydrophobic or release properties to surfaces in coatings and textile treatments.
• Coupling Agent/Crosslinker: Functions in sealant and adhesive formulations to improve compatibility and crosslinking density.
• Pharmaceutical & Cosmetic Ingredient: Potential use as an emollient or carrier in specialty personal care and topical pharmaceutical products.
• Research & Development: Serves as a reference standard and reagent in organic and organometallic chemistry research.

Basic Information

Product Name	1,1,1,5,5,5-Hexaethyl-3-Methyltrisiloxane
CAS No.	13716-38-6
Molecular Formula	C13H34O2Si3
Molecular Weight	306.67 g/mol
Synonyms	Hexaethylmethyltrisiloxane; 3-Methyl-1,1,1,5,5,5-hexaethyltrisiloxane; Trisiloxane, 1,1,1,5,5,5-hexaethyl-3-methyl-; Ethylmethyltrisiloxane; MEH Trisiloxane; Branched ethylmethyl siloxane; Organosilicon fluid intermediate
EINECS	Contact for details

Quality Control

Our 1,1,1,5,5,5-Hexaethyl-3-Methyltrisiloxane is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the specifications required for industrial and research applications. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request.

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, strong acids, and strong bases. The container should be kept tightly sealed when not in use to prevent moisture absorption and maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Refractive Index (n20D)	1.420 - 1.430
Density (20°C)	0.85 - 0.90 g/mL
Water Content (KF)	≤ 0.1%

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