Description

4,4'-Oxydiphenol is a high-purity aromatic diol compound, also known as 4,4'-dihydroxydiphenyl ether, serving as a critical building block in advanced polymer synthesis. Its bifunctional phenolic structure makes it an essential monomer for producing high-performance engineering plastics, such as polyarylates and polyether sulfones, which offer exceptional thermal stability and mechanical strength. This chemical is vital for manufacturers in the polymer, specialty chemical, and pharmaceutical intermediate sectors seeking to enhance material properties.

Application

• Polymer Synthesis: Key monomer for the production of high-temperature resistant polyarylates, polyetherketones (PEK), and polyethersulfones (PES).
• Epoxy Resin Modifier: Used as a curing agent or additive to improve the thermal and mechanical properties of epoxy resin systems.
• Pharmaceutical Intermediate: Serves as a precursor in the synthesis of various active pharmaceutical ingredients (APIs) and complex organic molecules.
• Liquid Crystal Polymers (LCPs): A fundamental component in the manufacture of high-performance LCPs for electronics and precision molding.
• Antioxidant Synthesis: Intermediate in the production of phenolic antioxidants for plastics and rubber stabilization.
• Specialty Coatings: Used in formulations requiring enhanced chemical resistance and durability.

Basic Information

Product Name	4,4'-Oxydiphenol
CAS No.	1965-09-9
Molecular Formula	C₁₂H₁₀O₃
Molecular Weight	202.21 g/mol
Synonyms	4,4'-Dihydroxydiphenyl ether; Bis(4-hydroxyphenyl) ether; 4,4'-Oxydiphenol; 4,4'-Oxydiphenol; 4,4'-Dihydroxydiphenyl oxide; 4,4'-Diphenol ether; 4,4'-Hydroxyphenyl ether; p,p'-Oxydiphenol
EINECS	217-818-5

Quality Control

Our 4,4'-Oxydiphenol is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling, to meet exacting customer specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 99.0%
Melting Point	160 - 165 °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.