1-Cyclopropyl-6,8-difluoro-4-oxo-7-(1-piperazinyl)-1,4-dihydro-3-quinolinecarboxylic acid 3-Quinolinecarboxylic acid, 1,4-dihydro-1-cyclopropyl-6,8-difluoro-4-oxo-7-(1-piperazinyl)- 8-Fluorociprofloxacin 94242-53-2 AT 3970 BRN 3632527