Atorvastatin EP Impurity G Catalogue A325307 CAS 887196-29-4 M.W 594.65 M.F C34H36FN2O5 Specifications FAQs Atorvastatin USP RC G ; 3-O-Methyl Atorvastatin Sodium ; CAS # 887196-29-4 (Ca) ; 887324-53-0 (Acid)