Description

Bis(4-Methacryloylthiophenyl) Sulfide is a specialized, high-purity difunctional methacrylate monomer containing sulfur and thiophene groups. This compound matters for its unique ability to impart enhanced refractive index, thermal stability, and adhesion properties to advanced polymer matrices. It is primarily needed by manufacturers in the optical lens, high-performance coating, and specialty adhesive industries, where precise material properties are critical.

Application

• High-Refractive-Index Optical Resins: A key monomer for manufacturing advanced optical lenses, including eyeglass lenses and camera lens elements.
• Optical Fiber Coatings: Used in coatings and cladding materials to modify the refractive index and protect optical fibers.
• Specialty Adhesives & Sealants: Enhances the refractive index matching, thermal resistance, and bonding strength of adhesives used in optics and electronics.
• Advanced Photoresists: Serves as a monomer in photopolymer formulations for microelectronics and printed circuit board (PCB) fabrication.
• Dental & Biomedical Composites: Incorporated into dental restorative materials and biocompatible polymers requiring specific optical and mechanical properties.
• Modification of Engineering Plastics: Used as a crosslinking agent or co-monomer to improve the heat resistance and dimensional stability of polycarbonates and other engineering plastics.

Basic Information

Item	Details
Product Name	Bis(4-Methacryloylthiophenyl) Sulfide
CAS No.	129283-82-5
Molecular Formula	C24H22O4S3
Molecular Weight	470.62 g/mol
Synonyms	2-Propenoic acid, 2-methyl-, 1,1'-[thiobis(4,1-phenylenethio)]bis[1-methylethyl] ester; 4,4'-Thiobis(phenyl thio)bis(2-methyl-2-propenoate); Bis(4-methacryloyloxy-thiophenyl) sulfide; Difunctional methacrylate monomer with thiophene linkage; High RI methacrylate crosslinker
EINECS	Contact for details

Quality Control

Every batch of Bis(4-Methacryloylthiophenyl) Sulfide is produced and tested under a strict quality management system. We ensure compliance with relevant industry standards for high-purity monomers. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to guarantee batch-to-batch consistency and performance reliability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a temperature between 2°C and 8°C (refrigerated) to maintain stability and prevent premature polymerization. Keep away from heat and incompatible materials such as strong oxidizing agents and initiators.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residual Solvent (GC)	Meets ICH guidelines

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