3-Carboxy-4-oxo-6-fluoro-7-(1-piperazinyl)-1,4-dihydroquinolone 3-Quinolinecarboxylic acid, 6-fluoro-1,4-dihydro-4-oxo-7-(1-piperazinyl)- 78295-91-7 Cofpdq Desethylenenorfloxacin