A simple and sensitive colorimetric method has been developed for the quantitative estimation of Rosuvastatin calcium from Pharmaceutical tablet dosage form. Developed method is based on formation of ion pair colored complex of drug with Cosneasie Brilliant Blue R. The complex formed showed absorbance maxima at 595.0 nm. Linearity was observed in concentration range of 100-500 µgm/ml of Rosuvastatin calcium. The results of analysis were validated statistically and by recovery studies.
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