Description

44Methylenebisoxy21Ethanediylthiobisphenol is a specialized phenolic compound with a unique molecular structure incorporating both ether and thioether linkages. This chemical serves as a critical intermediate and functional additive, valued for its ability to impart specific chemical and physical properties to advanced materials. It is primarily sought by manufacturers in the polymer, specialty chemical, and advanced material synthesis sectors for applications requiring high-performance additives and custom synthesis building blocks.

Application

• As a key monomer or chain extender in the synthesis of high-performance engineering plastics and specialty polymers.
• Functioning as an antioxidant or stabilizer additive in polymer formulations to enhance thermal and oxidative stability.
• Utilized as an intermediate in the production of advanced epoxy resins and other thermosetting materials.
• Employed in the synthesis of liquid crystal polymers (LCPs) and other high-temperature performance materials.
• Serving as a building block for pharmaceutical intermediates and fine chemical synthesis.
• Acting as a cross-linking agent or curing agent in specialized adhesive and coating formulations.
• Used in research and development for creating novel materials with tailored mechanical and chemical resistance properties.

Basic Information

Product Name	44Methylenebisoxy21Ethanediylthiobisphenol
CAS No.	93589-69-6
Molecular Formula	C₁₇H₂₀O₄S₂
Molecular Weight	352.47 g/mol
Synonyms	4,4'-Methylenebis(oxy-2,1-ethanediylthio)bisphenol; Bis[2-[(4-hydroxyphenyl)thio]ethyl] Ether; 1,1'-[Methylenebis(oxy-2,1-ethanediylthio)]bis[4-benzeneol]; Phenol, 4,4'-[methylenebis(oxy-2,1-ethanediylthio)]bis-; Antioxidant 445; MBOTBP; Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our production of 44Methylenebisoxy21Ethanediylthiobisphenol adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including chromatographic purity assays and identity confirmation. Certificates of Analysis (COA) documenting key specifications are available upon request to support your quality assurance and regulatory compliance needs.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
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.