Description

Bis{4-(2,3-Epoxypropylthiophenyl)Sulfide is a specialized sulfur-containing epoxy resin intermediate, valued for its ability to introduce both epoxy functionality and sulfur-based cross-linking sites into polymer matrices. This compound is essential for enhancing the thermal stability, chemical resistance, and adhesive properties of advanced epoxy systems. It is primarily needed by formulators and manufacturers in the electronics encapsulation, high-performance adhesives, and composite materials industries seeking to develop materials with superior durability.

Application

• Epoxy Resin Modifier: Used as a reactive diluent and cross-linking agent to improve the thermal and mechanical properties of epoxy resins for advanced composites.
• Electronic Encapsulants: A key intermediate in formulating epoxy molding compounds and potting materials for semiconductor protection, offering enhanced moisture resistance.
• High-Performance Adhesives: Incorporated into structural adhesive formulations to increase toughness, chemical resistance, and bond strength under demanding conditions.
• Fiber-Reinforced Composites: Serves as a matrix resin component in aerospace and automotive composites, contributing to weight reduction and performance.
• Coating Systems: Used in specialty anti-corrosive and chemical-resistant coatings where durability and adhesion are critical.
• Optical Materials: Potential use in the synthesis of polymers with high refractive indices for optical applications, leveraging the sulfur content.

Basic Information

Product Name	Bis{4-(2,3-Epoxypropylthiophenyl)Sulfide
CAS No.	84697-35-8
Molecular Formula	C20H22O2S3
Molecular Weight	390.58 g/mol
Synonyms	1,1'-[Thiobis(4,1-phenylenethio)]bis[2,3-epoxypropane]; Bis(4-glycidylthiophenyl) Sulfide; 2,2'-[Thiobis(1,4-phenylenethio)]bisoxirane; 4,4'-Thiobis(phenylthio)diglycidyl ether; Diglycidyl 4,4'-Thiodiphenyl Thioether; Epoxy Resin Intermediate ES-1; TGDDM Analog (Sulfur-containing); BGPTPS
EINECS	Contact for details

Quality Control

Our production of Bis{4-(2,3-Epoxypropylthiophenyl)Sulfide adheres to a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure consistency and compliance with agreed specifications. A Certificate of Analysis (COA) detailing purity, epoxy equivalent weight, and key physical parameters is provided with each shipment to guarantee traceability and support your quality assurance protocols.

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). Keep away from heat sources and incompatible materials such as strong acids, bases, and oxidizing agents. Under these conditions, the product is stable for extended periods.

Specification

Item	Specification
Appearance	Pale yellow to amber viscous liquid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Epoxy Equivalent Weight (EEW)	190 - 210 g/eq
Viscosity (25°C)	500 - 2000 mPa·s
Color (Gardner)	≤ 4
Water Content	≤ 0.2%

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