Description

4,4'-Ethylidenebisphenol is a high-purity bisphenol derivative characterized by its ethylidene bridge linking two phenolic rings. This compound is a critical intermediate in the synthesis of advanced polymers and specialty chemicals, valued for its structural rigidity and thermal stability. It is essential for manufacturers in the polymer, epoxy resin, and high-performance materials industries seeking to develop products with enhanced mechanical and chemical resistance properties.

Application

• Key monomer for the synthesis of specialized polycarbonate and epoxy resins.
• Intermediate in the production of flame retardants and polymer additives.
• Building block for pharmaceutical intermediates and fine chemicals.
• Used in the formulation of adhesives, coatings, and composite materials.
• Research and development of novel engineering plastics with high heat deflection temperatures.
• Potential use in the synthesis of liquid crystal polymers (LCPs).

Basic Information

Product Name	4,4'-Ethylidenebisphenol
CAS No.	2081-08-5
Molecular Formula	C15H16O2
Molecular Weight	228.29 g/mol
Synonyms	4,4'-(1-Ethylidene)bisphenol; Bisphenol E; BPE; 1,1-Bis(4-hydroxyphenyl)ethane; 4,4'-Isopropylidenebisphenol (common misnomer, correct is ethylidene); EBPA; 4,4'-Dihydroxybiphenylethane
EINECS	218-216-0

Quality Control

Our 4,4'-Ethylidenebisphenol 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 precise customer specifications. Certificates of Analysis (COA) documenting all critical parameters are available upon request, providing full traceability and compliance assurance for your supply chain.

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). This material is light-sensitive and easily oxidized; for long-term storage, consider an inert atmosphere (e.g., nitrogen) to maintain optimal purity and prevent degradation. 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	118 - 122 °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.