Description

3,3,13,13-Tetramethoxy-2,14-Dioxa-7,8,9-Trithia-3,13-Disilapentadecane is a specialized organosilicon compound containing a unique sulfur-bridged structure. This chemical is valued for its role as a key intermediate and coupling agent in advanced material synthesis, offering precise molecular control. It is primarily sought after by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries for developing novel compounds with tailored properties.

Application

• Silane Coupling Agent: Used to modify inorganic surfaces (e.g., silica, glass) to improve adhesion and compatibility with organic polymers in composite materials.
• Pharmaceutical Intermediate: Serves as a critical building block in the synthesis of complex active pharmaceutical ingredients (APIs), particularly those requiring sulfur or silicon incorporation.
• Agrochemical Synthesis: Employed in the production of advanced pesticides and herbicides where its specific molecular architecture contributes to efficacy and stability.
• Crosslinking Agent: Functions in the formulation of specialty silicones, resins, and elastomers to enhance thermal stability and mechanical strength.
• Material Science Research: Utilized in academic and industrial R&D for developing novel organosilicon compounds with applications in electronics and coatings.
• Surface Modification: Applied to create self-assembled monolayers (SAMs) on various substrates for controlled surface properties.

Basic Information

Product Name	3,3,13,13-Tetramethoxy-2,14-Dioxa-7,8,9-Trithia-3,13-Disilapentadecane
CAS No.	40550-17-2
Molecular Formula	C13H32O6S3Si2
Molecular Weight	432.68 g/mol
Synonyms	Bis(3-(trimethoxysilyl)propyl) Trisulfide; 3-(Trimethoxysilyl)propyl Trisulfide; Trisulfide, bis(3-(trimethoxysilyl)propyl); Si 69 (common trade name); TESPT; Coupling Agent Si-69; Bis(triethoxysilylpropyl) trisulfide (common variant); 1,1'-[Trisulfanediylbis(propane-3,1-diyl)]bis(trimethoxysilane)
EINECS	Contact for details

Quality Control

Our production of 3,3,13,13-Tetramethoxy-2,14-Dioxa-7,8,9-Trithia-3,13-Disilapentadecane adheres to strict quality management protocols. Each batch undergoes rigorous analytical testing, including GC, HPLC, and NMR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to guarantee compliance with your research and manufacturing standards.

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); containers must be kept tightly sealed to prevent degradation from atmospheric moisture. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Clear to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Density (20°C)	1.08 - 1.12 g/cm³
Refractive Index (n20/D)	1.480 - 1.490
Moisture (KF)	≤ 0.5%

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