132305-67-0 6-Fluoro-3,4-dihydro-4-methyl-5-(4-methyl-1-piperazinyl)-8-oxo-8H-1-thia-4,9b-diazacyclopenta(cd)phenalene-9-carboxylic acid 7-Fluoro-9,1-((N-methylimino)methano)-8-(4-methyl-1-piperazinyl)-5-oxo-5H-thiazolo(3,2-a)quinoline-4-carboxylic acid 7-Fmmm-tqc 8H-1-Thia-4,9b-diazacyclopenta(cd)phenalene-9-carboxylic acid, 6-fluoro-3,4-dihydro-4-methyl-5-(4-methyl-1-piperazinyl)-8-oxo- 9,1-Methyliminomethano-7-fluoro-8-(4-methyl-1-piperazinyl)-5-oxo-5H-thiazolo(3,2-a)quinoline-4-carboxylic acid TQ No. 5290 Tetracyclic quinolone No. 5290