Chinese Journal of Pharmacovigilance ›› 2023, Vol. 20 ›› Issue (4): 374-378.
DOI: 10.19803/j.1672-8629.20230093

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Preparation, characterization and stability of three forms of prulifloxacin

HUANG Yinyin1, ZHANG Liwen1,*, LIU Jing1, CHEN Jing1, ZHOU Yuanhua1, XU Mingzhe2, YAO Shangchen2#, WANG Chen2, ZHANG Xianhua3   

  1. 1Guangzhou Institute for Drug Control, Guangzhou Guangdong 510160, China;
    2National Institutes for Food and Drug Control, Beijing 102629, China;
    3Department of Pharmacy, Peking University Third Hospital, Beijing 100191, China
  • Received:2023-02-23 Online:2023-04-15 Published:2023-04-20

Abstract: Objective To study the polymorphism of prulifloxacin and provide a scientific basis for the quality control of the polymorphic impurities in the drug. Methods Three forms of prulifloxacin (formⅠ, formⅡ and form Ⅲ) were prepared. The forms were characterized by using powder X-ray diffraction, infrared spectroscopy, differential scanning calorimetry and Raman spectroscopy, and the stability relationship and crystal transformation rules of the three forms were explored by suspension experiments. Results Powder X-ray diffraction, infrared spectroscopy, thermal analysis and Raman spectroscopy were used to identify the three polymorphs of prulifloxacin effectively. The stability relationship of forms is: formⅠ> formⅡ > form Ⅲ. Conclusion This study provides references for the formulation of the standard of prulifloxacin.

Key words: prulifloxacin, polymorphism, characterization, stability, powder X-ray diffraction, infrared spectroscopy, differential scanning calorimetry, Raman spectroscopy

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