英文别名6,8-Difluoro-1,4-dihydro-1-[(1S)-2-hydroxy-1-methylethyl]-7-(4-methyl-1-piperazinyl)-4-oxo-3-quinolinecarboxylic acid; (S)-6,8-difluoro-1-(1-hydroxypropan-2-yl)-7-(4-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid; Levofloxacin Impurity 13 HCl; 3-Quinolinecarboxylic acid, 6,8-difluoro-1,4-dihydro-1-[(1S)-2-hydroxy-1-methylethyl]-7-(4-methyl-1-piperazinyl)-4-oxo-; Levofloxacin Impurity U; (1S)-6,8-Difluoro-1-[2-hydroxy-1-methylethyl]-7-(4-methylpiperazin-1-yl)-4-oxoquinoline-3-carboxylic Acid; (1S)-6,8-Difluoro-1-[2-hydroxy-1-methylethyl]-7-(4-methylpiperazin-1-yl)-4-oxoquinoline-3-carboxylic 
