9,10-difluoro-3-methyl-7-oxo-3,7-dihydro-2H-[1,3,4]oxadiazino[6,5,4-ij]quinoline-6-carboxylicacid;9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[3,2,1-ij][4,1,2]benzoxadiazine-6-carboxylic Acid; Marbofloxacin Impurity B;10-Despiperazino-10-fluoro Marbofloxacin
