Description

4,4'-Dimethyltriphenylamine is a high-purity organic compound belonging to the class of triarylamines, valued for its excellent hole-transporting and electron-donating properties. This compound is a critical functional material in the development of advanced optoelectronic devices and organic synthesis. It is essential for manufacturers and R&D laboratories in the electronics, photonics, and fine chemical industries seeking reliable, high-performance intermediates.

Application

• Hole-Transport Material (HTM) in Organic Light-Emitting Diodes (OLEDs) and Perovskite Solar Cells.
• Photoconductive Agent in electrophotographic photoreceptors and photocopier components.
• Electron Donor in charge-transfer complexes and organic semiconductor research.
• Chemical Intermediate for synthesizing more complex triarylamine derivatives and functional dyes.
• Photoinitiator Co-initiator in UV-curable coatings and inks.
• Research & Development of novel organic electronic materials and electrochromic devices.

Basic Information

Product Name	4,4'-Dimethyltriphenylamine
CAS No.	20440-95-3
Molecular Formula	C20H19N
Molecular Weight	273.37 g/mol
Synonyms	Bis(4-methylphenyl)(phenyl)amine; N,N-Bis(4-methylphenyl)aniline; 4,4',4''-Trimethyltriphenylamine (common misnomer); p,p'-Dimethyltriphenylamine; DTTA; N-Phenyl-di-p-tolylamine; 4-Methyl-N-(4-methylphenyl)-N-phenylaniline
EINECS	Contact for details

Quality Control

Our 4,4'-Dimethyltriphenylamine is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting standards for electronic-grade applications. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical characteristics is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0% (Standard Grade)
Melting Point	118 - 122 °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.