Sub Group: Atorvastatins Catalog Number: 18415 Formula: C33H33FN2O5 CAS Number: 163217-70-7 Molecular Weight: 556.62 Synonyms: 5-(4-Fluorophenyl)-N-(4-hydroxyphenyl)-2-(1-methylethyl)-4-phenyl-1-[2-[(2R,4R)-tetrahydro-4-hydroxy-6-oxo-2H-pyran-2-yl]ethyl]-