| Synonyms: | 2,2-DiMethyl-butanoic Acid (1S,3R,7S,8S,8aR)-1,2,3,7,8,8a-Hexahydro-3,7-diMethyl-8-[2-[(2R,4R)-tetrahydro-4-Methoxy-6-oxo-2H-pyran-2-yl]ethyl]-1-naphthalenyl Ester;Cholestat Methyl Ether;SiMvastatin 4'-Methyl Ether;Simvastatin Impurity J;Simvastatin Impurity 22（Simvastatin EP Impurity J）;Simvastatin EP Impurity J;[(1S,3R,7S,8S,8aR)-8-[2-[(2R,4S)-4-methoxy-6-oxooxan-2-yl]ethyl]-3,7-dimethyl-1,2,3,7,8,8a-hexahydronaphthalen-1-yl] 2,2-dimethylbutanoate;Simvastatin Impurity 38 |