Synonyms: 1,8-naphthyridine-3-carboxylic acid, 1,4-dihydro-1-methyl-7-[(E)-2-(5-nitro-2-furanyl)ethenyl]-4-oxo-, potassium salt (1:1);Potassium 1-methyl-7-[(E)-2-(5-nitro-2-furyl)vinyl]-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylate;1-methyl-7-[(E)-2-(5-nitrofuran-2-yl)ethenyl]-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylate