英文别名N,N'-Desethylene Levofloxacin; Levofloxacin EP Impurity G; Levofloxacin USP Related Compound E; (S)-9-Fluoro-2,3-dihydro-3-methyl-10-(2-(methylamino)ethylamino)-7-oxo-7H-pyrido(1,2,3-de)(1,4)benzoxazine-6-carboxylic acid; Levofloxacin Impurity 5; Levofloxacin impurity, diamine derivative