Description

N,N'-Diphenylterephthaldiamide is a high-purity organic diamide compound, recognized for its role as a key intermediate and performance additive. Its value lies in its ability to impart thermal stability and modify material properties in advanced polymer systems. This product is essential for manufacturers in the polymer, specialty chemical, and advanced materials industries seeking to enhance product performance.

Application

• As a high-performance monomer or chain extender in the synthesis of specialty polyamides and polyimides.
• As a thermal stabilizer and property modifier in engineering plastics and high-temperature resins.
• As an intermediate in the production of dyes, pigments, and optical brighteners.
• In the research and development of liquid crystal polymers (LCPs) and other advanced polymeric materials.
• As a cross-linking agent or curing agent in specific thermoset resin formulations.
• For use in analytical chemistry as a reference standard or reagent.

Basic Information

Product Name	N,N'-Diphenylterephthaldiamide
CAS No.	7154-31-6
Molecular Formula	C20H16N2O2
Molecular Weight	316.35 g/mol
Synonyms	N,N'-Diphenylterephthalamide; Terephthaldianilide; 1,4-Benzenedicarboxamide, N,N'-diphenyl-; N,N'-Diphenyl-1,4-benzenedicarboxamide; p-Benzenedicarboxanilide; DPTA; N,N'-Diphenyl-p-phthalamide; N,N'-Diphenylbenzene-1,4-dicarboxamide
EINECS	Contact for details

Quality Control

Our N,N'-Diphenylterephthaldiamide is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards for industrial and research applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to minimize exposure to atmospheric humidity.

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	≤ 1.0%
Residue on Ignition	≤ 0.1%

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