, Volume 81, Issue 3, pp 469–478 | Cite as

Stability Indicating LC-DAD Method for Determination of Nadifloxacin and Characterization of Its Degradation Products by LC–ESI–MS/MS

  • Nishant Salunke
  • Nancy PanditaEmail author


Nadifloxacin, a second generation fluoroquinolone, is a topical antibiotic prescribed for acne vulgaris. For any drug, understanding the stability profile is of vital significance as it correlates with the safety and potency of the drug. In the present study, the degradation behaviour of nadifloxacin was studied under different forced degradation conditions. The drug was subjected to acidic, basic, neutral, thermal, photolytic and reduction degradation conditions to evaluate its intrinsic stability. The forced degradation study showed extensive degradation under acidic and reduction conditions, with the formation of nine degradants. A RP-HPLC gradient method was developed for the separation of nadifloxacin and its degradants on a Kromasil C18 (250 mm × 4.6 mm, 5 µm) HPLC column, using ammonium acetate pH 4.5 and acetonitrile as mobile phase. The developed HPLC method has been validated as per ICH guidelines for specificity, linearity, accuracy, LOD and LOQ, precision and robustness. LC–ESI–MS n helped in structural elucidation of degradants and a degradation pathway for nadifloxacin has been proposed. The developed HPLC method can thus be employed as stability indicating method for routine quality control analysis of the drug in bulk samples.

Graphical Abstract


High performance liquid chromatography Nadifloxacin Forced degradation Degradation products LC–MS 



The authors are thankful to Wockhardt research centre, Aurangabad for providing gift sample of nadifloxacin to conduct this study.

Compliance with Ethical Standards

Conflict of interest

The authors declare no conflict of interest.

Ethical approval

This article does not contain any studies with human participants or animals performed by any of the authors.

Supplementary material

10337_2018_3468_MOESM1_ESM.docx (21 kb)
Supplementary material 1 (DOCX 20 kb)
10337_2018_3468_MOESM2_ESM.tif (86 kb)
Supplementary material 2 (TIFF 85 kb)


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Chemistry, Sunandan Divatia School of ScienceNMIMS (Deemed-to-be) UniversityMumbaiIndia

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