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A gradient reversed phase high performance liquid chromatography (RP-HPLC) method has been developed and validated for the determination for related substances of Dapagliflozin drug substance. Chromatographic separation of Dapagliflozin from its process and degradation related substances was achieved on YMC Pack Pro C18, 250mm × 4.6mm 5 i.e A stainless steel column 250 mm long, 4.6 mm internal diameter filled with Octadecyl silane chemically bonded to porous silica particles of 5 m diameter maintained column oven temperature at 25°C. Orthophosphoric acid buffer is mobile phase A and acetonitrile is mobile phase B. Wavelength for UV detection: 225nm, flow rate: 0.8 ml/min and Injection volume: 20μl. The developed method suitability was checked and validated as per ICH guidelines for specificity, linearity, accuracy, precision, limit of quantification, limit of detection robustness and ruggedness experiments. Dapagliflozin drug substance was subjected to stress conditions of thermal, hydrolysis, humidity, peroxide and photolytic to observe the degradation products. Limit of detection of each RS is less than 0.008%w/w indicating that the developed method is highly sensitive. The experiment results are given in detailed in this research article.

Validation of Stability-Indicating Reverse Phase HPLC Method for the Determination of Related Substances in Dapagliflozin Drug Substance