Description

N,N,N',N'-Tetrakis(4-Methoxyphenyl)-1,1'-Biphenyl-4,4'-Diamine is a high-purity, specialized aromatic amine derivative with a complex biphenyl core structure. This compound is valued for its excellent hole-transporting properties and its role as a key building block in advanced organic electronic materials. It is primarily utilized by R&D chemists and production engineers in the organic semiconductor, photoconductor, and specialty polymer industries. The material's specific molecular architecture makes it critical for applications requiring precise charge carrier mobility and thermal stability.

Application

• Hole-Transport Material (HTM) in organic light-emitting diodes (OLEDs) and perovskite solar cells.
• Photoconductive Agent in electrophotographic photoreceptors for photocopiers and laser printers.
• Chemical Intermediate for synthesizing more complex charge-transporting molecules and polymers.
• Research & Development of novel organic electronic devices and optoelectronic materials.
• Additive in specialty coatings and films to enhance electrical properties.

Basic Information

Product Name	N,N,N',N'-Tetrakis(4-Methoxyphenyl)-1,1'-Biphenyl-4,4'-Diamine
CAS No.	122738-21-0
Molecular Formula	C44H40N2O4
Molecular Weight	660.80 g/mol
Synonyms	N,N,N',N'-Tetrakis(4-methoxyphenyl)biphenyl-4,4'-diamine; 4,4'-Bis[N,N-bis(4-methoxyphenyl)amino]biphenyl; TPD (common abbreviation); N,N,N',N'-Tetrakis(p-methoxyphenyl)-4,4'-diaminobiphenyl; Hole Transport Material TPD; 1,1'-Biphenyl-4,4'-diamine, N,N,N',N'-tetrakis(4-methoxyphenyl)-; TAPD (alternative abbreviation); Tetramethoxy TPD
EINECS	Contact for details

Quality Control

Our N,N,N',N'-Tetrakis(4-Methoxyphenyl)-1,1'-Biphenyl-4,4'-Diamine is manufactured under strict quality protocols to ensure batch-to-batch consistency and high purity, which is critical for electronic performance. Production adheres to cGMP guidelines where applicable. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles, verified by techniques including HPLC, NMR, and GC-MS.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C) under an inert atmosphere (e.g., nitrogen or argon) to prevent oxidation. Keep away from heat, sparks, and open flame. The container should be kept tightly sealed in a dry environment to minimize exposure to moisture.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0% (Area %)
Melting Point	285 - 295 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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