... carboxylic acid Product Name: Levofloxacin carboxylic acidSynonyms: (-)-9,10-DIFLUORO-3(S)-METHYL-7-OXO-2,3-DIHYDRO-7H-PYRIDO ... )-1,4-BENZOXAZINE-6-CARBOXYLIC ACID;S-(-)-9,10-DIFLUORO-2,3-DIHYDRO-3-METHYL-7-OXO-7H-PYRIDO-[ ... )-1,4-BENZOXAZINE-6-CARBOXYLIC ACID;S-(-)-9,10-DIFLUORO-2,3-DIHYDRO-3-METHYL-7-OXO-7H-PYRIDO-[ ... 3-DE][1,4]-BENZOXAZINE-6-CARBOXYLIC ACID;9,10-Difluoro-3(S)-methyl-7-oxo-2,3-dihyd CAS: ...