Chemical Name: (3R,5R)-7-[5-(4-Fluorophenyl)-3-isopropyl-2-oxo-4-phenyl-3-(phenylcarbamoyl)-2,3-dihydro-1H-pyrrol-1-yl]-3,5-dihydroxyheptanoic acid Sodium salt (as per USP)
Synonym: Atorvastatin Lactam Impurity ; Atorvastatin Oxo Impurity ; Atorvastatin EP impurity Q(SODIUM SALT)
Smile: O=C(NC1=CC=CC=C1)C(C(C2=CC=CC=C2)=C(C3=CC=C(F)C=C3)N4CC[C@@H](O)C[C@@H](O)CC([O-])=O)(C(C)C)C4=O.[Na+]