Description

N,N'-Bis(3-Aminopropyl)-1,3-Propanediamine is a high-purity, multifunctional polyamine compound with a linear tetraamine structure. This versatile chemical building block is valued for its ability to act as a crosslinking agent, curing agent, and chelating precursor in advanced polymer and resin systems. It is essential for manufacturers in the epoxy resin, polyamide, and specialty chemical industries seeking to enhance material properties such as thermal stability, mechanical strength, and adhesion.

Application

• Epoxy Curing Agent: Used as a high-performance hardener for epoxy resins, imparting excellent chemical resistance and thermal properties to coatings, adhesives, and composites.
• Polyamide Synthesis: Serves as a key monomer in the production of nylon-type polyamides and other specialty polymers requiring a linear, multi-amine backbone.
• Chelating Agent Precursor: An intermediate for synthesizing advanced chelating agents and ligands used in water treatment, metal extraction, and catalysis.
• Corrosion Inhibitor Formulation: Incorporated into formulations for industrial coolants and metalworking fluids to provide effective corrosion protection.
• Textile & Paper Chemical: Utilized in the manufacture of wet-strength resins for paper and as a modifier for textile fibers to improve dye affinity and durability.
• Pharmaceutical Intermediate: Acts as a versatile building block in the synthesis of complex organic molecules and active pharmaceutical ingredients (APIs).

Basic Information

Product Name	N,N'-Bis(3-Aminopropyl)-1,3-Propanediamine
CAS No.	4605-14-5
Molecular Formula	C9H24N4
Molecular Weight	188.31 g/mol
Synonyms	3,3'-Diaminodipropylamine; 1,3-Propanediamine, N,N-bis(3-aminopropyl)-; N,N-Bis(3-aminopropyl)-1,3-propanediamine; Bis(3-aminopropyl)propylenediamine; 3,3'-Iminobis(propylamine); Tetraaminononane; Norspermidine; 1,11-Diamino-4,8-diazaundecane; DADPA
EINECS	225-000-5

Quality Control

Our N,N'-Bis(3-Aminopropyl)-1,3-Propanediamine is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including assay, impurity profiling, and identity confirmation, to ensure it meets precise customer specifications and industry standards. A comprehensive Certificate of Analysis (COA) documenting 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, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and a strong alkali; ensure containers are kept tightly sealed to prevent absorption of atmospheric moisture and carbon dioxide. Keep away from strong acids and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC or Titration)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	0.930 - 0.950
Refractive Index (20°C)	1.480 - 1.490

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