Synonyms: SIMVASTATIN HYDROXY ACID SODIUM SALT;SIMVASTATIN, SODIUM SALT;IMp. A (EP) as SodiuM Salt: (3R,5R)-7-[(1S,2S,6R,8S,8aR)-8-[(2,2-DiMethylbutanoyl)oxy]-2,6-diMethyl-1,2,6,7,8,8a-hexahydronaphthalen-1-yl]-3,5-dihydroxyheptanoic Acid SodiuM Salt (Tenivastatin SodiuM Salt;SiMvastatin IMp. A (EP) as SodiuM Salt