[{"from": "human", "value": "Describe this molecule. [C][C][N][C][=C][Branch2][Ring1][C][C][=Branch1][C][=O][C][=C][Ring1][#Branch1][N][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a monocarboxylic acid comprising 1,8-naphthyridin-4-one substituted by carboxylic acid, ethyl and methyl groups at positions 3, 1, and 7, respectively. An orally administered antibacterial, it is used in the treatment of lower urinary-tract infections due to Gram-negative bacteria, including the majority of E. coli, Enterobacter, Klebsiella, and Proteus species. It has a role as an antibacterial drug, a DNA synthesis inhibitor and an antimicrobial agent. It is a monocarboxylic acid, a 1,8-naphthyridine derivative and a quinolone antibiotic. It is a conjugate acid of a nalidixic acid anion."}]