Description

3,3,9,9-Tetraethyl-4,8-Dioxa-3,9-Disilaundecan-6-One is a specialized organosilicon compound featuring a unique ketone-bridged disiloxane structure. This molecular architecture makes it a valuable intermediate for synthesizing advanced silicone polymers and hybrid organic-inorganic materials. It is primarily sought by R&D chemists and production specialists in the silicone, coatings, and advanced materials industries for applications requiring tailored surface properties and thermal stability.

Application

• Silicone Polymer Modification: Acts as a functional crosslinker or chain extender to introduce ketone groups into silicone backbones, enhancing specific material properties.
• Hybrid Material Synthesis: Serves as a key precursor in sol-gel processes for creating silica-based hybrid coatings and composites with organic functionality.
• Surface Treatment Agent: Used to modify surface characteristics of fillers, pigments, or substrates to improve compatibility and dispersion in polymer matrices.
• Adhesive & Sealant Formulations: Incorporated to influence cure kinetics, adhesion promotion, and final elastomeric properties in high-performance silicone systems.
• Pharmaceutical & Agrochemical Intermediates: Utilized in the research and synthesis of novel active ingredients or delivery agents that benefit from siloxane linkages.
• Specialty Resins and Coatings: Employed in the development of resins that require a balance of flexibility, thermal resistance, and weatherability.

Basic Information

Product Name	3,3,9,9-Tetraethyl-4,8-Dioxa-3,9-Disilaundecan-6-One
CAS No.	335393-65-2
Molecular Formula	C15H32O3Si2
Molecular Weight	316.59 g/mol
Synonyms	1,5-Bis(triethoxysilyl)-3-pentanone; 3-Oxapentane-1,5-diylbis(oxy)bis(triethylsilane) (alternative IUPAC); Bis(triethoxysilyl) ketone derivative; Triethoxysilyl pentanone silane; Ketone-bridged triethoxysilane; 3,3,9,9-Tetraethoxy-4,8-dioxa-3,9-disilaundecan-6-one (ethoxy analog); Silane, bis[(triethoxysilyl)methyl] ketone
EINECS	Contact for details

Quality Control

Our production of 3,3,9,9-Tetraethyl-4,8-Dioxa-3,9-Disilaundecan-6-One adheres to a strict quality management system. Every batch undergoes rigorous analytical testing, including chromatographic purity assays and structural confirmation, to ensure consistent performance and reliability for your synthetic processes. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and key physical parameters is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive). Store in a cool, dry, and well-ventilated area at room temperature (15-25°C/59-77°F). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation due to moisture absorption.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 95.0%
Water Content (Karl Fischer)	≤ 0.5%
Refractive Index (n20D)	1.420 - 1.430
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.