Description

2,13-Dioxa-7,8-Dithia-3,12-Disilatetradecane, 3,12-Dimethoxy-3,12-Dimethyl- is a specialized organosilicon compound featuring a unique heterocyclic structure containing silicon, sulfur, and oxygen atoms. This molecular architecture makes it a valuable intermediate and functional additive in advanced material synthesis, offering properties such as cross-linking and surface modification. It is primarily sought by R&D and production teams in the silicone polymer, specialty adhesives, and advanced coating industries for developing materials with enhanced thermal stability, adhesion, and specific rheological properties.

Application

• Silicone Cross-Linking Agent: Used as a functional additive to promote cross-linking in silicone elastomers and resins, improving their mechanical strength and thermal resistance.
• Adhesive & Sealant Formulation: Acts as an adhesion promoter and coupling agent in high-performance silicone and hybrid polymer-based adhesives and sealants.
• Surface Modification: Employed to modify the surface properties of inorganic fillers (e.g., silica) to enhance their compatibility and dispersion within polymer matrices.
• Specialty Polymer Synthesis: Serves as a key monomer or intermediate in the synthesis of novel polymers with tailored Si-O and Si-S backbones for specialized applications.
• Lubricant & Grease Additive: Utilized as an extreme pressure (EP) and anti-wear additive in advanced synthetic lubricants and greases.
• Electronic Encapsulants: Incorporated into potting compounds and encapsulants for electronic components to provide moisture resistance and stability.

Basic Information

Product Name	2,13-Dioxa-7,8-Dithia-3,12-Disilatetradecane, 3,12-Dimethoxy-3,12-Dimethyl-
CAS No.	108857-77-8
Molecular Formula	C12H28O4S2Si2
Molecular Weight	368.66 g/mol
Synonyms	Bis[2-(methoxydimethylsilyl)ethyl] Disulfide; 1,2-Bis[2-(methoxydimethylsilyl)ethyl]disulfane; 3,12-Dimethoxy-3,12-dimethyl-2,13-dioxa-7,8-dithia-3,12-disilatetradecane; (Methoxydimethylsilyl)ethyl Disulfide; Disulfide, bis[2-(methoxydimethylsilyl)ethyl]; SIB1832.0 (common trade designation); Dimethoxy-functional disulfide silane
EINECS	Contact for details

Quality Control

Every batch of 2,13-Dioxa-7,8-Dithia-3,12-Disilatetradecane, 3,12-Dimethoxy-3,12-Dimethyl- is produced and tested under a strict quality management system. Our products undergo rigorous quality testing, including GC, HPLC, and NMR analysis, to ensure compliance with industry standards and batch-to-batch consistency. Certificates of Analysis (COA) detailing purity, identity, and key physical properties are available upon request. We support custom specifications to meet specific application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent degradation from moisture and oxygen. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Refractive Index (n20/D)	1.470 - 1.480
Density (20°C)	1.05 - 1.10 g/mL
Water Content (KF)	≤ 0.2%

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