nalidixic acid1,4-dihydro-1-ethyl-7-methyl-4-oxo-1,8-naphthyridine-3-carboxylic acid1-Aethyl-7-methyl-1,8-naphthyridin-4-on-3-karbonsaeure1-Ethyl-7-methyl-4-oxo-1,4-dihydro-[1,8]naphthyridine-3-carboxylic acid1-ethyl-1,4-dihydro-7-methyl-4-oxo-1,8-naphthyridine-3-carboxylic acid1-ethyl-7-methyl-1,4-dihydro-1,8-naphthyridin-4-one-3-carboxylic acid3-carboxy-1-ethyl-7-methyl-1,8-naphthyridin-4-oneNALIDIXIC ACIDNalidixic acid