Description

4,4'-Disulfanediylbis(2-Methylphenol) is a specialized organic sulfur compound featuring a disulfide bridge linking two phenolic units. This unique structure makes it a valuable intermediate and functional additive in advanced material synthesis and polymer chemistry. It is primarily sought by R&D and production teams in the pharmaceutical, agrochemical, and polymer industries for applications requiring controlled cross-linking, antioxidant properties, or as a building block for more complex molecules.

Application

• Polymer Additive: Acts as a cross-linking agent, chain transfer agent, or antioxidant in the production of specialty rubbers, resins, and high-performance plastics.
• Pharmaceutical Intermediate: Serves as a key synthon in the synthesis of active pharmaceutical ingredients (APIs), particularly those containing disulfide or phenolic functionalities.
• Agrochemical Synthesis: Used in the manufacture of certain fungicides, herbicides, and plant growth regulators where the disulfide moiety is critical for bioactivity.
• Antioxidant Formulations: Employed as a stabilizer in lubricants, fuels, and other industrial fluids to prevent oxidative degradation.
• Research & Development: Utilized in academic and industrial labs for developing novel materials, studying redox chemistry, and creating new catalytic systems.
• Adhesive and Sealant Chemistry: Functions as a curing agent or modifier to enhance the thermal and mechanical properties of epoxy and other adhesive systems.

Basic Information

Product Name	4,4'-Disulfanediylbis(2-Methylphenol)
CAS No.	33931-27-0
Molecular Formula	C14H14O2S2
Molecular Weight	278.39 g/mol
Synonyms	2,2'-Dithiobis(4-methylphenol); Bis(4-hydroxy-3-methylphenyl) disulfide; 4,4'-Dithiobis(2-methylphenol); 3,3'-Dimethyl-4,4'-dihydroxydiphenyl disulfide; Phenol, 4,4'-dithiobis(2-methyl-); 4-Hydroxy-3-methylphenyl disulfide; 2-Methyl-4-hydroxyphenyl disulfide; Antioxidant 736
EINECS	Contact for details

Quality Control

Our 4,4'-Disulfanediylbis(2-Methylphenol) is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. A Certificate of Analysis (COA) detailing specifications such as assay, melting point, and impurity profile is provided with every shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to store under an inert atmosphere for long-term preservation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	155 - 160 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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