Atorvastatin-d5-1 sodium is the deuterium labeled Atorvastatin sodium (HY-108257). Atorvastatin sodium is an orally active HMG-CoA reductase inhibitor, has the ability to effectively decrease blood lipids. Atorvastatin sodium inhibits human SV-SMC proliferation and invasion with IC50s of 0.39 µM and 2.39 µM, respectively[1][2][3][4][5].