6,7-difluoro-8-hydroxy-1-(methylamino)-4-oxo-1,4-dihydroquinoline-3-carboxylicacid;6,7-Difluoro-8-hydroxy-1,4-dihydro-1-methylamino-4-oxoquinoline-3-carboxylic Acid; 6,7-Difluoro-1,4-dihydro-8-hydroxy-1-(methylamino)-4-oxo-3-quinolinecarboxylic Acid; Marbofloxacin Impurity A;N,O-Desmethylene 10-Despiperazino-10-fluoro Marbofloxacin
