Description

2,2,10,10-Tetramethyl-3,6,9-Trioxa-2,10-Disilaundecane is a high-purity organosilicon compound, specifically a silane coupling agent with a unique polyether bridge. This chemical matters for its ability to act as a versatile surface modifier and adhesion promoter, enhancing compatibility between inorganic materials and organic polymers. It is essential for manufacturers in the coatings, adhesives, and sealants industries seeking to improve product durability and performance. The compound, CAS NO 16654-74-3, is a critical intermediate for advanced material synthesis.

Application

• Adhesion Promoter: Used in sealants, adhesives, and coatings to improve bonding to glass, metals, and mineral surfaces.
• Surface Modification: Imparts hydrophobicity or improves wetting characteristics on silica, glass fibers, and other fillers.
• Crosslinking Agent: Functions as a reactive intermediate in the synthesis of silicone resins and hybrid organic-inorganic polymers.
• Filler Treatment: Enhances the dispersion and compatibility of inorganic fillers within plastic and rubber matrices.
• Release Coatings: A key component in formulations for non-stick and easy-release coatings.
• Electronic Encapsulants: Used in potting compounds and encapsulants for electronic components to provide moisture resistance and adhesion.

Basic Information

Product Name	2,2,10,10-Tetramethyl-3,6,9-Trioxa-2,10-Disilaundecane
CAS No.	16654-74-3
Molecular Formula	C11H26O3Si2
Molecular Weight	262.50 g/mol
Synonyms	Bis(2-methoxyethyl)dimethoxysilane; 1,3-Bis(methoxyethoxy)-1,1,3,3-tetramethyldisiloxane; 1,1,3,3-Tetramethyl-1,3-bis(2-methoxyethoxy)disiloxane; 3-Oxa-2,8-disilanonane, 2,2,8,8-tetramethyl-5-oxa-; Glycol ether-modified silane; Silane A-1230 (trade name variant); Disiloxane, 1,1,3,3-tetramethyl-1,3-bis(2-methoxyethoxy)-; Polyether silane
EINECS	Contact for details

Quality Control

Our 2,2,10,10-Tetramethyl-3,6,9-Trioxa-2,10-Disilaundecane is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including GC and NMR, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing identity, assay, and impurity profiles 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). This material is moisture-sensitive (hygroscopic). Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Refractive Index (n20/D)	1.405 - 1.415
Density (g/mL, 20°C)	0.95 - 0.99
Water Content (KF)	≤ 0.5%

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