1-Cyclopropyl-6-fluoro-4-oxo-7-piperazin-4-ium-1-ylquinoline-3-carboxylate
Ciprofloxacin zwitterion is a zwitterion formed from ciprofloxacin by transfer of a proton from the carboxy to the amino group; major species at pH 7.3. It is a tautomer of a ciprofloxacin.