Sub Group: Atorvastatins Catalog Number: 18411 Formula: C33H33FN2O5 CAS Number: 163217-74-1 Molecular Weight: 556.62 Synonyms:5-(4-Fluorophenyl)-N-(2-hydroxyphenyl)-2-(1-methylethyl)-4-phenyl-1-[2-[(2R,4R)-tetrahydro-4-hydroxy-6-oxo-2H-pyran-2-yl]ethyl]-1