Description

1,7-Bis(p-Aminophenoxy)Heptane is a high-purity aromatic diamine monomer with a flexible alkane spacer. This compound matters as a critical building block for synthesizing advanced polyimides, polyamides, and other high-performance polymers. It is needed by manufacturers in the aerospace, electronics, and specialty coatings industries seeking to create materials with exceptional thermal stability, mechanical strength, and chemical resistance.

Application

• Primary monomer for the synthesis of high-temperature, flexible polyimide resins and films.
• Key intermediate in the production of polyamide-imides (PAI) for wire enamels and high-strength coatings.
• Building block for epoxy curing agents and cross-linking agents, enhancing thermal properties.
• Precursor for liquid crystal polymers (LCPs) and other advanced engineering plastics.
• Used in research and development of pharmaceutical intermediates and active ingredients.
• Component in the formulation of adhesives and sealants requiring high thermal endurance.

Basic Information

Product Name	1,7-Bis(p-Aminophenoxy)Heptane
CAS No.	2519-77-9
Molecular Formula	C25H30N2O2
Molecular Weight	390.52 g/mol
Synonyms	1,7-Bis(4-aminophenoxy)heptane; 4,4'-(Heptane-1,7-diylbis(oxy))dianiline; Bis(4-aminophenoxy)heptane; 1,7-Bis(4-aminophenoxy)heptane; Dianiline derivative with heptane spacer; Aromatic diamine monomer; Polyimide monomer; Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our 1,7-Bis(p-Aminophenoxy)Heptane 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 exacting specifications for polymer-grade applications. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its sensitivity to light and tendency for oxidation, it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation. Keep away from heat, sparks, and open flame.

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.