Description

4,4'-Bicyclo[2.2.1]Hept-2-Ylidenebisphenol is a specialized bisphenol derivative featuring a rigid norbornane (bicyclo[2.2.1]heptane) bridge. This unique structure imparts enhanced thermal stability, rigidity, and chemical resistance compared to conventional bisphenol monomers. It serves as a critical high-performance intermediate for the synthesis of advanced polymers and specialty chemicals. This compound is essential for R&D and production in sectors demanding materials with superior mechanical and thermal properties.

Application

• High-Performance Polymer Synthesis: Key monomer for producing polycarbonates, epoxy resins, and polyesters with enhanced heat resistance and dimensional stability.
• Advanced Epoxy Curing Agents & Hardeners: Used to formulate curing agents that yield epoxy systems with high glass transition temperatures (Tg) and excellent chemical resistance for coatings and composites.
• Specialty Additive Manufacturing: Serves as a precursor for resins used in high-temperature 3D printing (stereolithography) and photopolymers.
• Electronic Encapsulants and Underfills: Imparts low moisture absorption and high reliability in materials protecting sensitive microelectronics.
• Aerospace & Automotive Composites: Used in matrix resins for carbon fiber and glass fiber reinforced composites requiring lightweight and high strength.
• Flame Retardant Materials: Incorporated as a building block in the synthesis of inherently flame-retardant polymers.
• Pharmaceutical & Agrochemical Intermediates: Utilized in the synthesis of complex molecules for active ingredients and fine chemicals.
• Adhesive & Coating Formulations: Enhances the performance of industrial adhesives and protective coatings that must withstand harsh environments.

Basic Information

Product Name	4,4'-Bicyclo[2.2.1]Hept-2-Ylidenebisphenol
CAS No.	1943-96-0
Molecular Formula	C21H24O2
Molecular Weight	308.41 g/mol
Synonyms	2,2'-Dihydroxy-5,5'-bi-2-norbornylidenebiphenyl; 4,4'-(Bicyclo[2.2.1]hept-2-ylidene)diphenol; Bicyclo[2.2.1]heptane-2,2-diyldiphenol; NB-BP (Norbornane Bisphenol); Norbornane Bisphenol; 4,4'-(2-Norbornylidene)diphenol; 2,2-Bis(4-hydroxyphenyl)norbornane; BNB (Bridged Norbornane Bisphenol)
EINECS	217-749-4

Quality Control

Our 4,4'-Bicyclo[2.2.1]Hept-2-Ylidenebisphenol is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure high purity and consistent performance. We provide detailed Certificates of Analysis (COA) with key parameters including assay, identity confirmation, and impurity profiles. Our quality commitment supports applications requiring reliable material specifications for advanced polymer synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents. For long-term storage, consider an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 10 ppm

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