Impurity profile of rifaximin produced in China.

@article{Liuchao2012ImpurityPO,
  title={Impurity profile of rifaximin produced in China.},
  author={Liuchao and Maixi and Wangchao and Chunpeng Wan},
  journal={Die Pharmazie},
  year={2012},
  volume={67 4},
  pages={283-7}
}
Impurity profiles of rifaximin produced in China were investigated systematically by LCMS methods. Eleven impurities from the raw materials of rifaximin produced in China were detected. We adopted the Diagnostic fragment-ion-based extension strategy (DFIBES) for deducing the structure of unknown impurities. Impurity 1 was the 30-hydroxylated product of… CONTINUE READING