... ,8AR)-1,2,3,7,8,8A-HEXAHYDRO-3,7-DIMETHYL-8-[2-[(2R,4R)-TETRAHYDRO-4-HYDROXY-6-OXO-2H ... -PYRAN-2-YL]ETHYL]-1-NAPHTHALENYLY-2,2-DIMETHYL BUTANOATE;2,2-DIMETHYL-BUTYRIC ACID (1S,3R,7S,8S,8AR)-8 ... -HYDROXY-6-OXO-TETRAHYDRO-PYRAN-2-YL)-ETHYL]-3,7-DIMETHYL-1,2,3,7,8,8A-HEXAHYDRO-NAPHTHALEN-1-YL ... .1%Simvastatin hydroxyacid< 0.4%Lovastatin and epilovastatin< 1.0% High Quality Simvastatin (CAS No.:79902-63-9)