diazine

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Английский Язык - Английский Язык
Any six-membered aromatic heterocycle containing four carbon atoms, two nitrogen atoms and three double bonds
{i} isomeric compound (Chemistry)
an aromatic compound in which two CH groups of a benzene ring have been replaced with N; especially the three isomers of formula C{4}H{4}N{2}
diazine
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