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Triphenylamine.png Triphenylamine-A-3D-balls.png
CAS number 603-34-9 YesY
PubChem 11775
ChemSpider 11282 YesY
EC number 210-035-5
RTECS number YK2680000
Jmol-3D images Image 1
Molecular formula C18H15N
Molar mass 245.32 g/mol
Appearance Off-white solid
Density 0.774 g/cm3
Melting point 127 °C
Boiling point 347 - 348 °C
Solubility in water Almost insoluble
log P 5.74
R-phrases R20/21/22
S-phrases S26, S36
Main hazards Irritant (Xi)
Flash point 180 °C o.c.
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

Triphenylamine is an organic compound with formula (C6H5)3N. In contrast to most amines, triphenylamine is nonbasic. Its derivatives have useful properties in electrical conductivity and electroluminescence, and they are used in OLEDs as hole-transporters.[1]

Triphenylamine can be prepared by arylation of diphenylamine.[2]


  1. ^ Wei Shi, Suqin Fan, Fei Huang, Wei Yang, Ransheng Liu and Yong Cao "Synthesis of Novel Triphenylamine-based Conjugated Polyelectrolytes and Their Application to Hole-Transport Layer in Polymeric Light-Emitting Diodes" J. Mater. Chem., 2006, 16, 2387-2394. doi:10.1039/B603704F
  2. ^ F. D. Hager "Triphenylamine" Org. Synth. 1941, Coll. Vol. 1, 544.

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