123016-42-2 3-Quinolinecarboxylic acid, 1,4-dihydro-5-amino-1-cyclopropyl-6-fluoro-4-oxo-7-(1-piperazinyl)- 5-Amino-1-cyclopropyl-6-fluoro-7-(1-piperazinyl)-1,4-dihydro-4-oxo-quinoline-3-carboxylic acid BRN 4271942