Abstract
A novel and reliable stability-indicating high-performance liquid chromatography method was developed using design of experiments. Under forced degradation conditions (hydrolysis, oxidative, photolytic and thermal) Nilotinib produced five major degradation products utilizing sodium hydroxide in base hydrolysis. The degradation products were separated by Hypersil ODS column (150×4.6mm i.d., 5μ) utilizing methanol and 10mM ammonium acetate (pH 3.0, adjusted with acetic acid) as mobile phase in gradient elusion mode at a flow rate of 1.2mL/min column temperature set at 35°C and UV detection at 263nm. Tandem mass spectrometry method was used to characterize the base degradation products by accurate mass measurements. The developed method was found to be linear, accurate, precise and selective for the separation of Nilotinib from its degradation products as per the International Conference on Harmonisation guidelines. The structures of the degradation products have been elucidated, of which three degradation products were reported for the first time.
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