Sub Group: Atorvastatins Catalog Number: 18421 Formula: C40H48N2O5 CAS Number: 1105067-91-1 Molecular Weight: 636.82 Synonyms:(4R,6R)-2,2-Dimethyl-6-[2-[2-(1-methylethyl)-4,5-diphenyl-3-[(phenylamino)carbonyl]-1H-pyrrol-1-yl]ethyl]-1,3-dioxane-4-acetic Ac