Azoxine

A chemical compound or class of compounds containing an azo group (-N=N-) incorporated into or adjacent to an aromatic or heterocyclic ring system.

From 'azo-' (containing -N=N-) + '-xine' (possibly from Greek 'xanthos' meaning yellow, as many azo compounds are colored). May derive from 'azine' (six-membered nitrogen ring) with azo substitution.