(βS,δS)-2-(4-Fluorophenyl)-β,δ-dihydroxy-5-(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1H-pyrrole-1-heptanoic Acid Calcium Salt, Atorvastatin Calcium Trihydrate EP Impurity E as Calcioum Salt;, Atorvastatin USP Related Compound E as Hemicalcium Salt; (3S,5S)-Atorvastatin Calcium Salt; CI 981 Calcium Salt;, Lipitor Calcium Salt; Sortis Calcium Salt; Tahor Calcium Salt;