Description

2,12-Dioxa-3,11-Disilatridecane, 3,3,11,11-Tetramethoxy- is a specialized organosilicon compound, specifically a bis-silane with methoxy functional groups. This chemical is a critical building block and coupling agent in advanced material science, valued for its ability to form stable bonds between organic polymers and inorganic surfaces. It is primarily utilized by manufacturers in the silicone polymer, adhesive, and specialty coatings industries seeking to enhance material compatibility, adhesion, and cross-linking efficiency.

Application

• As a cross-linking agent in the synthesis of silicone resins and elastomers.
• As a surface modification agent for inorganic fillers (e.g., silica, glass) to improve dispersion and bonding in polymer composites.
• As a key adhesion promoter in high-performance sealants, adhesives, and coating formulations.
• As a precursor molecule in sol-gel processes for creating hybrid organic-inorganic materials.
• In the development of release coatings and non-stick surfaces.
• For fiber treatment to enhance the interfacial properties of glass or carbon fibers in reinforced plastics.

Basic Information

Product Name	2,12-Dioxa-3,11-Disilatridecane, 3,3,11,11-Tetramethoxy-
CAS No.	87135-02-2
Molecular Formula	C12H30O6Si2
Molecular Weight	326.53 g/mol
Synonyms	1,8-Bis(trimethoxysilyl)octane; Bis(trimethoxysilyl)octane; Octamethylene bis(trimethoxysilane); 1,8-Octanediyl bis(trimethoxysilane); 3,3,11,11-Tetramethoxy-2,12-dioxa-3,11-disilatridecane; Trimethoxysilyl-terminated octane; Silane coupling agent Z-6182 (trade name equivalent)
EINECS	Contact for details

Quality Control

Our 2,12-Dioxa-3,11-Disilatridecane, 3,3,11,11-Tetramethoxy- is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity. All products undergo rigorous analytical testing, including GC, NMR, and titration methods, to verify identity, assay, and impurity profiles. Certificates of Analysis (COA) documenting full specifications are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. This product is hygroscopic (moisture-sensitive). Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep the container tightly sealed under a dry inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis and maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (20°C)	~1.00 g/cm³
Refractive Index (n20D)	~1.410

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