Description

N,N'-Diphenylpropane-1,3-Diamine is a high-purity aromatic diamine compound, widely recognized for its role as a versatile chemical intermediate and curing agent. Its molecular structure, featuring two primary amine groups separated by a propyl chain and terminated by phenyl rings, provides excellent reactivity and thermal stability for polymer synthesis. This product is essential for manufacturers in the polymer, epoxy resin, and specialty chemical industries seeking to enhance material properties and develop advanced formulations.

Application

• Epoxy Resin Curing Agent: Acts as a curing agent and hardener for epoxy resins, contributing to improved thermal and mechanical properties in coatings, adhesives, and composites.
• Polymer Synthesis Intermediate: Serves as a key monomer or chain extender in the production of polyamides, polyimides, and polyureas.
• Rubber & Tire Industry: Used as an antioxidant and anti-ozonant precursor in the manufacturing of synthetic rubber and tire compounds to prevent degradation.
• Corrosion Inhibitor Formulation: Employed in the synthesis of additives for lubricants and fuels to protect metal surfaces.
• Dye & Pigment Manufacturing: Functions as an intermediate in the synthesis of various azo dyes and organic pigments.
• Pharmaceutical Intermediate: Utilized in controlled synthesis processes for active pharmaceutical ingredients (APIs) and fine chemicals.

Basic Information

Product Name	N,N'-Diphenylpropane-1,3-Diamine
CAS No.	104-69-8
Molecular Formula	C15H18N2
Molecular Weight	226.32 g/mol
Synonyms	1,3-Bis(anilino)propane; N,N'-Diphenyl-1,3-propanediamine; 1,3-Propanediamine, N,N'-diphenyl-; DPPD; N,N'-Diphenyltrimethylenediamine; Antioxidant DPPD; Aniline, N,N'-trimethylenedi-; N,N'-Diplenylpropylenediamine
EINECS	203-226-8

Quality Control

Our N,N'-Diphenylpropane-1,3-Diamine is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including chromatography and spectroscopy, to verify identity, potency, and impurity profiles. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance and regulatory compliance needs.

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 heat, sparks, open flames, and incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to light yellow crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	78 - 82 °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.