Description

4,4'-Heptylidenebisphenol is a high-purity bisphenol derivative characterized by its extended heptylidene bridge. This compound is a critical specialty monomer and intermediate valued for its ability to impart enhanced flexibility, thermal stability, and specific reactivity to advanced polymer systems. It is essential for manufacturers in the polycarbonate, epoxy resin, and specialty plastics industries seeking to develop materials with tailored mechanical and chemical properties.

Application

• Polymer Synthesis: Key monomer for producing modified polycarbonates and epoxy resins with improved impact resistance and processability.
• Advanced Material Production: Intermediate in the manufacture of high-performance engineering plastics and specialty coatings.
• Chemical Intermediate: Used in organic synthesis for creating complex molecules in pharmaceutical and agrochemical research.
• Additive Manufacturing: Component in formulations for resins used in 3D printing and photopolymer applications.
• Adhesive & Sealant Formulations: Contributes to the performance of high-strength, temperature-resistant adhesives.
• Flame Retardant Synergist: Used in combination with other compounds to enhance flame-retardant properties in polymers.

Basic Information

Product Name	4,4'-Heptylidenebisphenol
CAS No.	3373-03-3
Molecular Formula	C21H28O2
Molecular Weight	312.45 g/mol
Synonyms	4,4'-(Heptane-4,4-diyl)diphenol; 4,4'-(1-Ethylpentylidene)bisphenol; 4,4'-Dihydroxyheptylidenebenzene; Phenol, 4,4'-(1-ethylpentylidene)bis-; Bisphenol AP (common name); 4,4'-(4-Heptylidene)diphenol; 4,4'-Bis(4-hydroxyphenyl)heptane
EINECS	222-161-6

Quality Control

Our 4,4'-Heptylidenebisphenol is manufactured under stringent quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications. A detailed Certificate of Analysis (COA) documenting all critical parameters is provided with each shipment to guarantee traceability and compliance.

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/59-77°F). Due to its sensitivity to oxidation, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation. 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	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.