%0 Journal Article %T Extractive Spectrophotometric Methods for the Determination of Rosuvastatin Calcium in Pure Form and in Pharmaceutical Formulations by Using Safranin O and Methylene blue %A Marothu Vamsi Krishna %A Dannana Gowri Sankar %J Journal of Chemistry %D 2007 %I Hindawi Publishing Corporation %R 10.1155/2007/454853 %U http://dx.doi.org/10.1155/2007/454853