Description

1,1,3,5,5-Pentaethoxy-1,3,5-Trimethyltrisiloxane is a specialized organosilicon compound, specifically a functionalized trisiloxane, that serves as a versatile chemical intermediate. Its molecular structure, featuring both ethoxy and methyl groups, provides unique reactivity and compatibility, making it valuable for creating tailored silicone-based materials. This product is essential for R&D chemists and process engineers in the advanced materials, coatings, and specialty chemical sectors seeking to modify surface properties or synthesize novel polymers.

Application

• Silicone Resin & Polymer Modification: Acts as a key monomer or cross-linking agent in the synthesis of specialty silicone resins, influencing flexibility, thermal stability, and adhesion properties.
• Surface Treatment & Coupling Agent: Used to modify inorganic surfaces (e.g., glass, silica, metals) to improve compatibility with organic matrices in composite materials and coatings.
• Hydrophobic Coatings: Serves as a precursor for developing water-repellent and release coatings for textiles, paper, and construction materials.
• Adhesive & Sealant Formulations: Imparts specific curing characteristics and enhances the performance of high-performance silicone adhesives and sealants.
• Lubricant & Fluid Additive: Employed as an intermediate for synthesizing specialized silicone fluids and lubricants with tailored viscosity and thermal properties.
• Pharmaceutical & Cosmetic Intermediates: Used in the controlled synthesis of silicone derivatives for personal care and pharmaceutical applications, subject to appropriate purity grades.

Basic Information

Product Name	1,1,3,5,5-Pentaethoxy-1,3,5-Trimethyltrisiloxane
CAS No.	18419-59-5
Molecular Formula	C13H34O5Si3
Molecular Weight	354.65 g/mol
Synonyms	1,1,3,5,5-Pentaethoxy-1,3,5-trimethylcyclotrisiloxane; Trisiloxane, 1,1,3,5,5-pentaethoxy-1,3,5-trimethyl-; 1,3,5-Trimethyl-1,3,5-tris(ethoxy)cyclotrisiloxane; Ethoxy-functional methylsiloxane; Pentaethoxy trimethyltrisiloxane; Methyl ethoxy trisiloxane
EINECS	Contact for details

Quality Control

Our production of 1,1,3,5,5-Pentaethoxy-1,3,5-Trimethyltrisiloxane adheres to stringent quality management protocols to ensure batch-to-batch consistency and reliability. Each lot undergoes rigorous analytical testing, including assay and impurity profiling, to meet specified purity standards. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and relevant physical properties is provided with every shipment to support your quality assurance processes.

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 bases and incompatible materials such as strong oxidizing agents. Due to the presence of ethoxy groups, the material is moisture-sensitive; containers should be kept tightly sealed to prevent hydrolysis upon exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Refractive Index (n20D)	1.380 - 1.390
Density (20°C)	0.95 - 1.00 g/mL

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