trans-octahydro-1H-pyrrolo[3,4-b]pyridine Moxifloxacin Impurity 12 1-cyclopropyl-6,7,8-trifluoro-1,4-dihydro-4-oxo-3-quinoline carboxylic acid ethyl ester Moxifloxacin Impurity 9 Moxifloxacin Impurity 15 Moxifloxacin impurity (20) Moxifloxacin Impurity 6 3-Quinolinecarboxylic acid, 7-aMino-1-cyclopropyl-6-fluoro-1,4-dihydro-8-Methoxy-4-oxo- Moxifloxacin Impurity 2 Moxifloxacin Impurity 5 8-Fluoro-6-methoxy Moxifloxacin Dihydrochloride 4,4,4-trifluoro-1-(2-methylphenyl)butane-1,3-dione Moxifloxacin Impurity 11 Moxifloxacin Impurity 19 Moxifloxacin Impurity 8 Moxifloxacin Impurity 1 Moxifloxacin Impurity 14 Moxifloxacin Impurity 10