Description

44Oxybis21Ethanediylthiobisphenol is a specialized phenolic compound with a unique molecular structure incorporating ether and thioether linkages. This chemical is valued for its role as a high-performance antioxidant and stabilizer, particularly in polymer systems where it helps to prevent thermal and oxidative degradation. It is primarily sought by manufacturers in the polymer, plastics, and specialty chemical industries for formulating advanced materials with enhanced longevity and stability.

Application

• As a primary antioxidant and stabilizer in polyolefins (e.g., polyethylene, polypropylene) to extend service life.
• As a polymer additive in engineering plastics and synthetic rubbers to inhibit thermal oxidation during processing and use.
• As an intermediate in the synthesis of more complex antioxidants and light stabilizers for high-performance applications.
• In the formulation of lubricants and greases to improve oxidative stability under high-temperature operating conditions.
• As a stabilizing component in adhesives, sealants, and coatings to prevent premature aging and maintain performance properties.

Basic Information

Product Name	44Oxybis21Ethanediylthiobisphenol
CAS No.	90884-29-0
Molecular Formula	C16H18O3S2
Molecular Weight	322.44 g/mol
Synonyms	4,4'-Oxybis(2,1-ethanediylthio)bisphenol; 4,4'-[Oxybis(2,1-ethanediylthio)]bisphenol; Bis[2-(4-hydroxyphenylthio)ethyl] ether; Antioxidant 90884-29-0; Phenolic thioether antioxidant; 4,4'-(Oxybis(ethane-2,1-diylthio))diphenol
EINECS	Contact for details

Quality Control

Our 44Oxybis21Ethanediylthiobisphenol is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including assay, purity, and impurity profile determination, to ensure it meets the exacting standards required for high-performance additive applications. Certificates of Analysis (COA) documenting all critical parameters are available upon request.

Storage

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

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%
Residue on Ignition	≤ 0.1%

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