Aromatic amine

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An aromatic amine is an amine with an aromatic substituent - that is -NH₂, -NH- or nitrogen group(s) attached to an aromatic hydrocarbon, whose structure usually contains one or more benzene rings. Aniline is an example.

Aromatic amines, when protonated, usually have lower pKa's (are more acidic) than their non-aromatic analogs. This is due to the delocalization of the lone pair of electrons from the nitrogen into the ring.

Aromatic amine CAS number Properties Uses

Aniline 62-53-3

o-toluidine 95-53-4

2,4,6-trimethylaniline 88-05-1

Anisidine 90-04-0

3-trifluoromethylaniline 98-16-8 Intermediate for herbicides, metabolite

Representative anilines

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