Description

N,N,N',N'-Tetraphenylbenzidine (TPB) is a high-purity organic compound widely recognized as a crucial hole-transport material and chemical intermediate. Its value lies in its excellent electron-donating properties and stable conjugated structure, which are essential for advanced electronic and optoelectronic applications. This product is primarily needed by manufacturers in the organic light-emitting diode (OLED), photoconductor, and specialty chemical synthesis industries, where material purity and performance consistency are critical.

Application

• Hole-Transport Layer (HTL) in OLED Devices: A key component in the fabrication of organic light-emitting diodes for displays and lighting.
• Photoconductive Agents: Used in the production of photoreceptors for photocopiers and laser printers.
• Electrochemical Sensing: Serves as a mediator or sensing element in the development of biosensors and chemical sensors.
• Organic Semiconductor Research: A fundamental material for studying charge transport in organic electronic materials.
• Chemical Synthesis Intermediate: Utilized in the preparation of more complex organic molecules and dyes.
• Charge-Generation Materials: Applied in organic photovoltaic (OPV) research and xerographic applications.

Basic Information

Product Name	N,N,N',N'-Tetraphenylbenzidine
CAS No.	15546-43-7
Molecular Formula	C42H32N2
Molecular Weight	564.72 g/mol
Synonyms	TPB; Tetraphenylbenzidine; N,N,N',N'-Tetraphenyl-1,1'-biphenyl-4,4'-diamine; Benzidine, N,N,N',N'-tetraphenyl-; 1,1'-Biphenyl-4,4'-diamine, N,N,N',N'-tetraphenyl-; N,N,N',N'-Tetraphenyl-[1,1'-biphenyl]-4,4'-diamine
EINECS	Contact for details

Quality Control

Our N,N,N',N'-Tetraphenylbenzidine is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity, which is vital for sensitive electronic applications. Each lot is analyzed using advanced techniques like HPLC and NMR to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment and is available upon request.

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, and open flame. Due to its light-sensitive nature, prolonged exposure to light should be avoided.

Specification

Item	Specification
Appearance	Light yellow to yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	208 - 212 °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.