The chemical Gatifloxacin sesquihydrate has a known molecular formula of C19-H22-F-N3-O4.3/2H2-O. Synonyms may include: (+-)-1-Cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-7-(3-methyl-1-piperazinyl)-4-oxo-3-quinolinecarboxylic acid, sesquihydrate, UNII-L4618BD7KJ, Gatifloxacin (ChemID).