Synonyms: (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, Simvastatin Imp. A (EP) as Sodium Salt, Tenivastatin Sodium Salt, Simvastatin Hydroxy Acid Sodium Salt,1-Naphthaleneheptanoic acid, 8-(2,2-dimethyl-1-oxobutoxy)-1,2,6,7,8,8a-hexahydro-β,δ-dihydroxy-2,6-dimethyl-, sodium salt (1:1), (βR,δR,1S,2S,6R,8S,8aR)-, 1-Naphthaleneheptanoic acid, 8-(2,2-dimethyl-1-oxobutoxy)-1,2,6,7,8,8a-hexahydro-β,δ-dihydroxy-2,6-dimethyl-, monosodium salt, (βR,δR,1S,2S,6R,8S,8aR)- (9CI), 1-Naphthaleneheptanoic acid, 8-(2,2-dimethyl-1-oxobutoxy)-1,2,6,7,8,8a-hexahydro-β,δ-dihydroxy-2,6-dimethyl-, monosodium salt, [1S-[1α(βS*,δS*),2α,6β,8β,8aα]]-