Atorvastatin tert-Butyl Ester (25 mg) (tert-butyl (3R,5R)-7-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)-3,5-dihydroxyheptanoate),

This Atorvastatin is guaranteed a tert-Butyl with the use of Ester (3R,5R)-7-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)-3,5-dihydroxyheptanoate), and directly supplied to your lab by Gentaur's warehouse.