A chemical compound with a six-membered aromatic ring containing four nitrogen atoms.
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1,2,4,5-Tetrazine, 3,6-bis[4-(trifluoromethyl)phenyl]-
N-(6-cyanopyridin-3-yl)-N-methyl-2-nitrobenzenesulfonamide
6-[(2-phenylhydrazinyl)methylidene]cyclohexa-2,4-dien-1-one