4,4'-dimethyldiphenylamine, CAS No. 620-93-9

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620-93-9

Catalog No. EBD2205249

CAS 620-93-9

Name 4,4'-dimethyldiphenylamine

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Basic Information

Synonyms: di-p-tolylamine 4,4'-dimethyldiphenylamine P,P'-Ditlylamine P,P'-Ditolylamine 4-Methyl-N-(4-Methylphenyl)-Benzenamin Di-Para-Tolylamine Ditlylamine Di-P-Tolyamine 4-Methyl-N-(4-Methylphenyl)Aniline 4,4-Dimethyldiphenylamine Dmdpa

Molecular Formula: C14H15N

Molecular Weight: 197.28

MDL Number: MFCD00059317

Categories: Materials Chemistry > Optoelectronic and Organic Semiconductor Materials > Liquid Crystal and Optically Active Small Molecule Precursors Materials Chemistry > Optoelectronic and Organic Semiconductor Materials > OLED and Organic Optoelectronic Precursors Synthetic Chemistry > Organic Building Blocks > Amines

Product Description:

4,4'-Dimethyldiphenylamine is a secondary aromatic amine with the molecular formula C14H15N. Structurally, it consists of two p-tolyl groups attached to a central nitrogen atom, featuring a diphenylamine backbone with methyl substituents at the para positions. This compound is typically a crystalline solid with a melting point around 79-81буC. Its primary application lies in organic synthesis as a versatile building block for constructing more complex molecules, particularly in the preparation of triarylamine derivatives. These derivatives are widely utilized in the field of optoelectronics, serving as hole-transporting materials (HTMs) or precursors for organic light-emitting diodes (OLEDs), organic photovoltaics (OPVs), and other organic semiconductor devices. The electron-donating methyl groups enhance its solubility and tune its electronic properties, making it a valuable intermediate for charge-transport layers. Additionally, 4,4'-dimethyldiphenylamine is used as an antioxidant in rubber and polymer industries, and as a stabilizer in certain industrial lubricants. It should be handled with care as it may cause skin and eye irritation, and appropriate personal protective equipment is recommended during use.

Physical Properties

Melting Point: 78-82 °C(lit.)

Boiling Point: 330 °C

Flash Point: 167.6 °C

Density: 1.049 g/cm3