Description

3,8,11,14-Tetraoxa-2,4-Disilapentadecane, 2,2,4,4-Tetramethyl- is a specialized organosilicon compound, specifically a siloxane ether, known for its unique hybrid molecular structure. This compound is valued for its ability to act as a versatile chemical intermediate and functional additive, offering properties like moisture sensitivity and reactivity that are critical in advanced material synthesis. It is primarily needed by manufacturers in the silicone polymer, electronics, and specialty chemical industries for applications requiring precise surface modification, adhesion promotion, or controlled cross-linking.

Application

• Silicone Resin & Polymer Modification: Used as a cross-linking agent or chain extender to impart specific flexibility, thermal stability, or reactivity to silicone-based materials.
• Surface Coupling Agent: Functions as an adhesion promoter in coatings, sealants, and composites to improve bonding between organic polymers and inorganic substrates like glass or metals.
• Electronics Encapsulation: Serves as a key intermediate in formulating protective potting compounds and encapsulants for sensitive electronic components.
• Specialty Lubricants & Greases: Incorporated as a performance additive to enhance the thermal and oxidative stability of high-performance lubricants.
• Pharmaceutical & Cosmetic Intermediates: Utilized in the synthesis of siloxane-based ingredients for controlled-release drug delivery systems or personal care products.
• Research & Development: Acts as a valuable building block in organic and organometallic chemistry research for creating novel hybrid materials.

Basic Information

Product Name	3,8,11,14-Tetraoxa-2,4-Disilapentadecane, 2,2,4,4-Tetramethyl-
CAS No.	17065-99-5
Molecular Formula	C11H26O4Si2
Molecular Weight	278.49 g/mol
Synonyms	1,3-Bis(3-glycidyloxypropyl)-1,1,3,3-tetramethyldisiloxane; Glycidoxypropyl-terminated polydimethylsiloxane; 3-[3-(Glycidyloxy)propyl]-1,1,1,3,5,5,5-heptamethyltrisiloxane (related structure); Bis(3-glycidoxypropyl)tetramethyldisiloxane; Epoxy-functional siloxane; Silane, bis(3-glycidoxypropyl)tetramethyl-di-; 2,2,4,4-Tetramethyl-3,8,11,14-tetraoxa-2,4-disilapentadecane
EINECS	Contact for details

Quality Control

Our 3,8,11,14-Tetraoxa-2,4-Disilapentadecane, 2,2,4,4-Tetramethyl- is produced under stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure high purity, consistent performance, and compliance with relevant industry specifications. Comprehensive Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic nature, store in a cool, dry place with controlled humidity. Recommended storage temperature is 15-25°C. Keep the container tightly sealed when not in use to prevent moisture absorption and potential degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC or HPLC)	≥ 95.0%
Water Content (Karl Fischer)	≤ 0.5%
Refractive Index (n20D)	1.430 - 1.450
Density (20°C)	0.95 - 1.05 g/mL

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