Description

4,4'-Biphenol CAS NO 92-88-6 is a high-purity aromatic diol compound, serving as a critical monomer and building block in advanced polymer synthesis. Its symmetrical, rigid biphenyl structure provides exceptional thermal stability and mechanical properties to the resulting materials. This product is essential for manufacturers in the polymer, liquid crystal, and pharmaceutical intermediate industries seeking to enhance material performance.

Application

• Polymer Industry: Key monomer for producing high-performance engineering plastics like polyarylates, polycarbonates, and polysulfones.
• Liquid Crystal Polymers (LCPs): A fundamental rigid-rod component in the synthesis of thermotropic LCPs for electronics and precision molding.
• Pharmaceutical Intermediates: Used in the synthesis of various active pharmaceutical ingredients (APIs) and complex organic molecules.
• Epoxy Resin Curing Agent: Functions as a high-performance curing agent or cross-linker, improving heat resistance and mechanical strength of epoxy systems.
• Polyester and Polyether Synthesis: Employed as a diol component to create specialty polyesters and polyethers with enhanced properties.
• Chemical Research & Development: A versatile building block in organic synthesis and materials science R&D.

Basic Information

Product Name	4,4'-Biphenol
CAS No.	92-88-6
Molecular Formula	C12H10O2
Molecular Weight	186.21 g/mol
Synonyms	4,4'-Dihydroxybiphenyl; p,p'-Biphenol; [1,1'-Biphenyl]-4,4'-diol; 4,4'-Biphenyldiol; 4-Hydroxy-4'-hydroxybiphenyl; Bis(4-hydroxyphenyl); p,p'-Dihydroxydiphenyl
EINECS	202-199-1

Quality Control

Our 4,4'-Biphenol is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for polymer and pharmaceutical applications. Certificates of Analysis (COA) documenting all critical parameters are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is easily oxidized; for long-term storage, consider an inert atmosphere (e.g., nitrogen or argon). 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	280 - 285 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 1.0%

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