Description

Bis(4-Methoxyphenyl) Disulphide is an organosulfur compound featuring a disulfide bridge connecting two 4-methoxyphenyl groups. This chemical serves as a versatile intermediate and specialty additive, valued for its role in modifying polymer properties and facilitating specific organic synthesis pathways. It is primarily sought by manufacturers in the polymer, rubber, and fine chemical industries for applications requiring sulfur-based cross-linking agents or specialized building blocks.

Application

• Polymer Modification: Acts as a cross-linking agent or chain transfer agent in the synthesis and vulcanization of specialty rubbers and polymers.
• Lubricant & Grease Additive: Used as an extreme pressure (EP) additive and anti-wear agent in advanced lubricant formulations.
• Organic Synthesis Intermediate: Serves as a key precursor or building block in the synthesis of more complex sulfur-containing pharmaceuticals, agrochemicals, and dyes.
• Antioxidant Synergist: Functions in combination with primary antioxidants to enhance the oxidative stability of various industrial materials.
• Chemical Research & Development: Utilized in R&D laboratories for studying disulfide chemistry and developing new materials.

Basic Information

Product Name	Bis(4-Methoxyphenyl) Disulphide
CAS No.	5335-87-5
Molecular Formula	C14H14O2S2
Molecular Weight	278.39 g/mol
Synonyms	Di(4-methoxyphenyl) Disulfide; 4,4'-Dimethoxydiphenyl Disulfide; Bis(p-methoxyphenyl) Disulfide; p-Methoxyphenyl Disulfide; 1-Methoxy-4-[(4-methoxyphenyl)disulfanyl]benzene; NSC 403697
EINECS	226-242-7

Quality Control

Our Bis(4-Methoxyphenyl) Disulphide is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including assay by HPLC and identification by FT-IR, to ensure it meets defined specifications and is free from significant impurities. A comprehensive Certificate of Analysis (COA) documenting purity, physical properties, and test results is provided with every shipment to guarantee traceability and compliance.

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 strong oxidizing agents and heat sources.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	44 - 48 °C
Loss on Drying	≤ 0.5%

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