for the following products
1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid nicotinic acid salt | Norfloxacin nicotinate | Quinoline-3-carboxylic and 1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid compound with nicotinic acid (1:1)
