Description

4,4'-(1-Phenylethylidene) Biphenol is a high-purity organic compound, also known as Bisphenol AP, that serves as a critical monomer and intermediate in advanced polymer synthesis. Its unique molecular structure, featuring a central carbon bridge, provides enhanced thermal stability and rigidity to the resulting materials. This compound is essential for manufacturers in the polymer, specialty chemical, and electronics industries seeking to develop high-performance resins and functional materials.

Application

• Polymer Synthesis: A key monomer for producing high-performance polycarbonates, epoxy resins, and polyarylates with superior heat resistance and mechanical strength.
• Advanced Composites: Used in the formulation of matrix resins for fiber-reinforced composites in aerospace and automotive applications.
• Electronic Materials: Serves as a building block for engineering plastics used in electrical insulation, connectors, and other high-temperature electronic components.
• Specialty Coatings: Incorporated into coating formulations that require excellent chemical resistance, durability, and thermal stability.
• Adhesive Formulations: Used to enhance the performance and high-temperature properties of structural and industrial adhesives.
• Chemical Intermediate: Acts as a versatile precursor in the synthesis of more complex specialty chemicals and functional additives.

Basic Information

Product Name	4,4'-(1-Phenylethylidene) Biphenol
CAS No.	1571-75-1
Molecular Formula	C20H18O2
Molecular Weight	290.36 g/mol
Synonyms	Bisphenol AP; 4,4'-(1-Phenylethane-1,1-diyl)diphenol; 1,1-Bis(4-hydroxyphenyl)-1-phenylethane; Phenol, 4,4'-(1-phenylethylidene)bis-; BAP; Bisphenol A Phenyl; 4,4'-Isopropylidenediphenol, phenyl-; NSC 403697
EINECS	216-391-4

Quality Control

Our 4,4'-(1-Phenylethylidene) Biphenol is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and physical properties. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing key parameters such as assay, melting point, and impurity profiles. Our quality commitment ensures consistent performance and reliable supply for your critical applications.

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)	≥ 98.5%
Melting Point	185 - 190 °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.