4'-Acetyl Simvastatin;2,2-DiMethylbutanoic Acid (1S,3R,7S,8S,8aR)-8-[2-[(2R,4R)-4-(Acetyloxy)tetrahydro
-6-oxo-2H-pyran-2-yl]ethyl]-1,2,3,7,8,8a-hexahydro-3,7-diMethyl-1-naphthalenyl Ester;SiMvastatin Acetate;SiMvastatin IMpurity-B;SiMvastatin IMpurity B (Acetyl SiMvastatin);ACETYLSIMVASTATIN;Simvastatin EP Impurity B;Simvastatin Impurity 2(Simvastatin EP Impurity B)
