3-Quinolinecarboxylic acid, 6-fluoro-1-(4-fluorophenyl)-1,4-dihydro-7-(4-methyl-1-piperazinyl)-4-oxo- 6-Fluoro-1-(4-fluorophenyl)-1,4-dihydro-7-(4- methyl-1- piperazinyl)-4-oxo-3- quinolinecarboxylic acid 91296-86-5 (HYDROCHLORIDE) 98106-17-3 A 56619 AIDS-007684 AIDS007684 Difloxacin