Rosuvastatin Anti isomer CAS No. : 1422515-55-6Molecular Formula: C22H28FN3O6SMolecular Weight : 481.54Chemical Name : (3R,5R,E)-7-(4-(4-Fluorophenyl)-6-isopropyl-2-[methylsulfonamido)pyrimidin-5-yl]-3-,5-dihydroxyhept-6-enoate.