K.R. Wadekar

The authors describe the development of a stability-indicating reverse-phase high-performance liquid chromatographic (RP?HPLC) method for the quantitative determination of potential genotoxic impurities present in pemetrexed disodium (form-IV). The chromatographic separation was achieved on a RP?HPLC column (Zorbax SB-Phenyl, Agilent) at ambient temperature with gradient elution using mobile phase A (trifluoroacetic acid [TFA] in water) and mobile phase B (TFA in acetonitrile).