Product Description: S-Desmethyl-S-(2-hydroxy-2-methylpropyl) Rosuvastatin (Rosuvastatin EP Impurity A) calcium is an impurity of rosuvastatin[1].
Formula: C25H33FN3O7S.1/2Ca
References: [1]Lee Y H, et al. Synthesis and characterization of Rosuvastatin calcium impurity A; a HMG-CoA reductase inhibitor. Tetrahedron Letters, 2017, 58(26): 2614-2617.