Atorvastatin EP Impurity C (Calcium Salt)

Chemical Name: (3R,5R)-7-[2,3-bis(4-Fluorophenyl)-4-(phenylcarbamoyl)-5-(propan-2-yl)-1H-pyrrol-1-yl]-3,5-dihydroxyheptanoic Acid Calcium Salt

Synonym: Atorvastatin USP Related Compound C;Difluoro Atorvastatin Calcium Salt

Smile: O=C([O-])C[C@H](O)C[C@H](O)CCN1C(C2=CC=C(F)C=C2)=C(C3=CC=C(F)C=C3)C(C(NC4=CC=CC=C4)=O)=C1C(C)C.[1/2Ca]