Three new process-related impurities were detected in levofloxacin sample by reversed-phase liquid chromatographic analysis method described in USP. Based on chromatographic elution order impurities were marked as Imp-1, Imp-2 and Imp-3. Impurities were isolated from Mother Liquor (ML) collected during various stages by using flash chromatographic method. These impurities were well characterized by Liquid Chromatography-tandem Mass Spectrometry (LC-MS/MS) and Nuclear Magnetic Resonance (NMR). Mechanism of their formation is also discussed in this communication.
Select your language of interest to view the total content in your interested language
Der Pharma Chemica received 15261 citations as per Google Scholar report