Description

N,N'-Diphenylbenzidine is a high-purity organic compound widely recognized as a key intermediate and analytical reagent. Its primary commercial value lies in its role as a precursor in the synthesis of dyes, pigments, and specialty polymers, where its molecular structure provides essential properties. This product is particularly critical for manufacturers and R&D laboratories in the chemical synthesis, materials science, and analytical chemistry sectors seeking reliable, high-quality raw materials.

Application

• Chemical Synthesis Intermediate: A vital precursor for the production of various dyes, pigments, and charge-transport materials.
• Polymer Industry: Used in the synthesis of specialized polymers and polyimides requiring specific aromatic amine components.
• Analytical Chemistry: Serves as a reagent in specific colorimetric detection methods and oxidation-reduction indicator systems.
• Electronics & Optoelectronics: Investigated for use in the development of organic semiconductors and photoconductive materials.
• Research & Development: Essential for academic and industrial R&D in organic chemistry and new material discovery.
• Vulcanization Accelerator: Acts as an intermediate in the production of certain rubber vulcanization accelerators.

Basic Information

Product Name	N,N'-Diphenylbenzidine
CAS No.	531-91-9
Molecular Formula	C24H20N2
Molecular Weight	336.43 g/mol
Synonyms	N,N'-Diphenyl-1,1'-biphenyl-4,4'-diamine; Diphenylbenzidine; N,N'-Diphenyl-[1,1'-biphenyl]-4,4'-diamine; 4,4'-Bis(phenylamino)biphenyl; p,p'-Diphenylbenzidine; Benzidine, N,N'-diphenyl-; 1,1'-Biphenyl-4,4'-diamine, N,N'-diphenyl-
EINECS	208-524-8

Quality Control

Our N,N'-Diphenylbenzidine is manufactured under strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including identification, assay, and impurity profiling, to meet exacting customer requirements. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its light-sensitive and easily oxidized nature, it is recommended to store the material under an inert atmosphere for long-term preservation and to minimize exposure to air and moisture.

Specification

Item	Specification
Appearance	Light yellow to beige crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	245 - 250 °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.