英文别名N-(3-Oxobutyl) Norfloxacin; 1-ethyl-6-fluoro-1,4-dihydro-7-(4-(3-oxobutyl)piperazin-1-yl)-4-oxoquinoline-3-carboxylic acid; 1-ethyl-6-fluoro-1,4-dihydro-4-oxo-7(4-(3-oxobutyl)-1-piperazinyl)quinoline-3-carboxylic acid; 3-Quinolinecarboxylic acid, 1-ethyl-6-fluoro-1,4-dihydro-4-oxo-7-[4-(3-oxobutyl)-1-piperazinyl]- 
