... -dimethyl-8-(2-(tetrahy;l644128-000u;mk-0733;LIPONORM;(1S,3R,7S,8S,8AR)-1,2,3,7,8,8A-HEXAHYDRO ... -2,2-DIMETHYL BUTANOATE;2,2-DIMETHYL-BUTYRIC ACID (1S,3R,7S,8S,8AR)-8-[2-((2R,4R)-4-HYDROXY-6 ... .1%Simvastatin hydroxyacid< 0.4%Lovastatin and epilovastatin< 1.0% High Quality Simvastatin (CAS No.:79902-63-9)