has role is deprotonated form of is tautomer of ciprofloxacin CHEBI:100241 A quinolone that is quinolin-4(1<em>H</em>)-one bearing cyclopropyl, carboxylic acid, fluoro and piperazin-1-yl substituents at positions 1, 3, 6 and 7, respectively. ciprofloxacin zwitterion ciprofloxacin(1+) antiviral agent quinolone quinolinemonocarboxylic acid antineoplastic agent vasodilator agent xenobiotic antirheumatic drug antibacterial drug aminoquinoline N-arylpiperazine anti-ulcer drug EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor cyclopropanes topoisomerase IV inhibitor antidiarrhoeal drug DNA synthesis inhibitor ophthalmology drug environmental contaminant quinolone antibiotic fluoroquinolone antibiotic