Enoxacin is a 1,8-naphthyridine derivative, specifically a 1,4-dihydro-1,8-naphthyridine with an ethyl group at position 1, a carboxy group at position 3, an oxo group at position 4, a fluoro substituent at position 5, and a piperazin-1-yl group at position 7. It is an antibacterial agent used to treat urinary tract infections and gonorrhoea. It functions as a DNA synthesis inhibitor and is classified as a monocarboxylic acid, an amino acid, a N-arylpiperazine, a quinolone antibiotic, and a fluoroquinolone antibiotic.