Pyronaridine Tetraphosphate and its Impurities

Pyronaridine Tetraphosphate is a benzo naphthyridine derivatives indicated in the treatment of acute malaria caused by P. falciparum or P. vivax in area with low rates of infection and low resistance to artemisinin. Reference standards of Pyronaridine Tetraphosphate API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.