Description

1,3-Bis(4-Aminophenoxy)Benzene is a high-purity aromatic diamine monomer of significant industrial importance. Its value lies in its dual amine functional groups and rigid, symmetrical molecular structure, which make it a critical building block for advanced polymers. This compound is essential for manufacturers in the high-performance plastics, specialty coatings, and advanced electronics sectors seeking to enhance material properties such as thermal stability and mechanical strength.

Application

• Polyimide Synthesis: A key monomer for producing high-temperature, high-strength polyimide resins and films used in aerospace and electronics.
• Epoxy Curing Agent: Functions as a high-performance curing agent for epoxy resin systems, improving thermal and chemical resistance.
• Polyamide Production: Used in the synthesis of specialty polyamides (aramid-type polymers) for fibers and engineering plastics.
• Liquid Crystal Polymers (LCPs): Serves as a diamine component in the manufacture of LCPs for precision molded components.
• Pharmaceutical Intermediates: Acts as a sophisticated building block in the synthesis of complex active pharmaceutical ingredients (APIs).
• Adhesives and Sealants: Imparts enhanced durability and heat resistance to advanced industrial adhesives.

Basic Information

Product Name	1,3-Bis(4-Aminophenoxy)Benzene
CAS No.	2479-46-1
Molecular Formula	C24H20N2O2
Molecular Weight	368.43 g/mol
Synonyms	1,3-Bis(4-aminophenoxy)benzene; 4,4'-[1,3-Phenylenebis(oxy)]dianiline; BAPB; BAPO; 1,3-Bis(p-aminophenoxy)benzene; Bis[4-(4-aminophenoxy)phenyl] ether (common misnomer); APB-133; 4,4'-(1,3-Phenylenedioxy)dianiline
EINECS	Contact for details

Quality Control

Our 1,3-Bis(4-Aminophenoxy)Benzene is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting standards for polymer-grade applications. A comprehensive Certificate of Analysis (COA) detailing purity, moisture content, and other critical parameters is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This material is easily oxidized (store under inert atmosphere) and is light-sensitive (store away from light). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.5%
Melting Point	118 - 122 °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.