Description

4,4'-Cyclohexylidenemethylenediphenol is a high-purity bisphenol derivative, recognized for its utility as a key monomer and intermediate in advanced polymer synthesis. Its unique cyclohexylidene bridge offers enhanced thermal stability and chemical resistance compared to standard bisphenol analogs, making it a valuable component for high-performance materials. This compound is essential for manufacturers in the engineering plastics, specialty epoxy resin, and advanced coating industries seeking to improve product durability and performance.

Application

• Polymer Monomer: A critical building block for the synthesis of high-performance polycarbonates and polysulfones with superior heat resistance.
• Epoxy Resin Systems: Used as a co-monomer or hardener modifier to enhance the thermal and mechanical properties of advanced epoxy formulations for composites and adhesives.
• Specialty Coatings: Imparts improved chemical resistance and weatherability to industrial and protective coatings.
• Flame Retardant Additives: Serves as an intermediate in the production of certain halogen-free flame retardants for polymers.
• Pharmaceutical Intermediates: Employed in the synthesis of complex organic molecules for active pharmaceutical ingredients (APIs).
• Liquid Crystal Polymers (LCPs): Acts as a monomeric unit in the production of high-temperature LCPs for electronics and automotive applications.

Basic Information

Product Name	4,4'-Cyclohexylidenemethylenediphenol
CAS No.	5189-40-2
Molecular Formula	C20H24O2
Molecular Weight	296.40 g/mol
Synonyms	Bisphenol C; 4,4'-(Cyclohexylidenedimethylene)diphenol; 1,1-Bis(4-hydroxyphenyl)cyclohexane; 4,4'-(1,4-Cyclohexanediylbis(methylene))bisphenol; 4,4'-(Cyclohexane-1,4-diylbis(methylene))diphenol; 4,4'-Dihydroxy-α,α'-dicyclohexyl-p-xylene; NSC 403697
EINECS	225-967-6

Quality Control

Our 4,4'-Cyclohexylidenemethylenediphenol is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications for advanced synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical characteristics is provided with every shipment to guarantee traceability and consistency for your critical processes.

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 (store under inert atmosphere) and is light-sensitive (store away from light). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.5%
Melting Point	165 - 170 °C
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 1.5%

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