... carboxylic acid Product Name: Levofloxacin carboxylic acidSynonyms: (-)-9,10-DIFLUORO-3(S)-METHYL-7-OXO-2,3-DIHYDRO-7H-PYRIDO ... 2,3-DE)-1,4-BENZOXAZINE-6-CARBOXYLIC ACID;S-(-)-9,10-DIFLUORO-2,3-DIHYDRO-3-METHYL-7-OXO- ... 3a-aza-phenalene-5-carboxylic acid;LEVOFLUOROCARBOXYLIC ACID;S(-)-9,10-DIFL-2,3-DIHYDRO-3-ME-7H- ... 2,3-DE)-1,4-BENZOXAZINE-6-CARBOXYLIC ACID;S-(-)-9,10-DIFLUORO-2,3-DIHYDRO-3-METHYL-7-OXO ...