Product Name Rosuvastatin Chemical Name 7-{4-(4-Fluorophenyl)-6-isopropyl-2-[methyl(methylsulfonyl)amino]pyrimidin-5-yl}-3,5-dihydroxyhept-6-enoic acid CAS Number147098-20-2 Molecular Formula C44H54CaF2N6O12S2 Storage Kept in well-closed container with nitrogen gas, protected from light ITEMS SPECIFICATIONAppearance A white to off-white powderIdentification Meets the requirementsSpecific Rotation +15.0° +21.0°Chloride ≤0.1%Sulphate ≤0.1%Enantiomer ≤0.5%Related Substances Diastereomers ≤0.5%5-oxo-Rosuastatin ≤0.3%Photodegradation impurity 1≤0.3%Photodegradation impurity 2 ≤0.3%Rosuvastatin lactone ≤0.3%Rosuvastatin tert-butyl ≤0.3%Any unknown impurity: ≤0.2%Total impurities ≤1.0%Water ≤3.0%Heavy Metals ≤0.002%Residual Solvents Methanol ≤0.3%Ethyl ether ≤0.5%Acetone ≤0.5%Acetonitrile ≤0.041%Toluene ≤0.089%Isopropyl ether ≤0.5%Ethyl acetate ≤0.5%Tetrahydrofuran ≤0.072%Tert-butyl alcohol ≤0.5%Acetic acid ≤0.5%Assay (on dried basis) 98.5 102.0%PRODUCTS COVERED BY AN ACTIVE PATENT CAN BE OFFERED ONLY FOR EXPERIMENTAL USE Note: we hereAtorvastatin isn't RX, It's just raw material.