Description

4,4'-Bis(4-Aminophenoxy)Biphenyl is a high-purity aromatic diamine monomer with a rigid biphenyl core and flexible ether linkages. This compound matters as a critical building block for synthesizing advanced polymers with exceptional thermal stability, mechanical strength, and chemical resistance. It is primarily needed by manufacturers in the polyimide, polyamide, and epoxy resin industries for producing high-performance materials used in electronics, aerospace, and specialty coatings.

Application

• Polyimide Synthesis: A key monomer for producing high-temperature, high-strength polyimide films and resins used in flexible printed circuits (FPCs), wire enamels, and aerospace components.
• High-Performance Epoxy Curing Agent: Imparts enhanced thermal and mechanical properties to epoxy systems for advanced composite materials and adhesives.
• Polyamide Production: Used in the synthesis of aromatic polyamides (aramids) for fibers and films requiring superior thermal stability.
• Liquid Crystal Polymers (LCPs): Serves as a diamine component in the manufacture of LCPs for precision molded parts in electronics and automotive applications.
• Specialty Coatings and Adhesives: Incorporated into formulations for coatings that require long-term durability under harsh environmental conditions.
• Chemical Intermediate: Used in organic synthesis for creating more complex molecules in pharmaceutical and agrochemical research.

Basic Information

Product Name	4,4'-Bis(4-Aminophenoxy)Biphenyl
CAS No.	13080-85-8
Molecular Formula	C24H20N2O2
Molecular Weight	368.43 g/mol
Synonyms	BAPB; 4,4'-Bis(4-aminophenoxy)biphenyl; 1,1'-Biphenyl, 4,4'-bis(4-aminophenoxy)-; 4,4'-Bis(p-aminophenoxy)biphenyl; 4-Aminophenyl 4-(4-aminophenoxy)phenyl ether; Bis[4-(4-aminophenoxy)phenyl] ether; 4,4'-(Biphenyl-4,4'-diyldioxy)dianiline
EINECS	Contact for details

Quality Control

Our 4,4'-Bis(4-Aminophenoxy)Biphenyl is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry standards. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C) under an inert atmosphere (e.g., nitrogen or argon) to prevent oxidation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	185 - 190 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm

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