Decarboxyl Ofloxacin ImpurityOflaxacin IMP 9-Fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7H-pyrido[1,2,3-de]-1,4-benzoxazin-7-one

Ofloxacin Desfluoro ImpurityOflaxacin IMP (RS)-2,3-Dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid

Norfloxacin N-Formyl Impurity Norfloxacin IMP 1-Ethyl-6-fluoro-7-(4-formylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic Acid

Norfloxacin N-Ethoxycarbonyl Impurity Norfloxacin IMP 7-[4-(Ethoxycarbonyl)piperazin-1-yl]-1-ethyl-6-fluoro-4-oxo-1,4-dihydro quinoline-3-carboxylic Acid

Norfloxacin N-Methyl AnalogNorfloxacin IMP 6-Fluoro-1-methyl-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic Acid

Norfloxacin Descarboxy Impurity Norfloxacin IMP 1-Ethyl-6-fluoro-7-(piperazin-1-yl)quinolin-4(1H)-one

Norfloxacin HCl 7-Chloro AnalogNorfloxacin IMP 7-Chloro-1-ethyl-4-oxo-6-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic Acid

Norfloxacin 6-Chloro AnalogNorfloxacin IMP 6-Chloro-1-ethyl-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic Acid

Norfloxacin Impurity ANorfloxacin IMP 7-Chloro-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic Acid

Desethylene Norfloxacin HydrochlorideNorfloxacin IMP 7-[(2-Aminoethyl)amino]-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic Acid