106939-30-4

(3S)-10-(4-ETHYL-1-PIPERAZINYL)-9-FLUORO-2,3-DIHYDRO-3-METHYL-7-OXO-7H-PYRIDO[1,2,3-DE]-1,4-BENZOXAZINE-6-CARBOXYLIC ACID (LEVOFLOXACIN IMPURITY)