英文别名N,N'-Desethylene-N,N'-diformyl Levofloxacin; LEVOFLOXACIN DESETHYLENE DIFORMYL IMPURITY; (2S)-7-fluoro-6-[formyl-[2-[formyl(methyl)amino]ethyl]amino]-2-methyl-10-oxo-4-oxa-1-azatricyclo[7.3.1.05,13]trideca-5(13),6,8,11-tetraene-11-carboxylic acid; (S)-9-Fluoro-3-methyl-10-(N-(2-(N-methylformamido)ethyl)formamido)-7-oxo-3,7-dihydro-2H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid; 7H-Pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid, 9-fluoro-10-[formyl[2-(formylmethylamino)ethyl]amino]-2,3-dihydro-3-methyl-7-oxo-, (S)-; Levofloxacin Diformyl Impurity; (S)-9-Fluoro-10-[formyl[2-(formylmethylamino)ethyl]amino]-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid; (3S)-9-Fluoro-10-(formyl{2-[formyl(methyl)amino]ethyl}amino)-3-methyl-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid; (3S)-9-Fluoro-3-methyl-10-{N-[2-(N-methylformamido)ethyl]formamido}-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid; (s)-ofloxacin Impurity; Levofloxacin impurity 
