Lovastatin Impurity Identification Mixture

NA

(S)-2-Methylbutyric acid, 8-ester with (4R,6R)-6-[2-[(1S,2S,6R,8S,8aR)-1,2,6,7,8,8a-hexahydro-8-hydroxy-2,6-dimethyl-1-naphthyl]ethyl]tetrahydro-4-hydroxy-2H-pyran-2-one and (1S,7S,8S,8aR)-8-{2-[(2R,4R)-4-Hydroxy-6-oxotetrahydro-2H-pyran-2-yl]ethyl}-7-methyl-1,2,3,7,8,8ahexahydronaphthalen-1-yl (S)-2-methylbutanoate and (3R,5R)-7-[(1S,2S,6R,8S,8aR)-2,6-dimethyl-8-{[(S)-2-methylbutanoyl]oxy}-1,2,6,7,8,8a-hexahydronaphthalen-1-yl]-3,5-dihydroxyheptanoic acid and (1S,3R,7S,8S,8aR)-3,7-Dimethyl-8-{2-[(R)-6-oxo-3,6-dihydro-2H-pyran-2-yl]ethyl}-1,2,3,7,8,8ahexahydronaphthalen-1-yl (S)-2-methylbutanoate and (2R,4R)-2-{2-[(1S,2S,6R,8S,8aR)-2,6-dimethyl-8-{[(S)-2-methylbutanoyl]oxy}-1,2,6,7,8,8a-hexahydronaphthalen1-yl]ethyl}-6-oxotetrahydro-2H-pyran-4-yl (3R,5R)-7-[(1S,2S,6R,8S,8aR)-2,6-dimethyl-8-{[(S)-2-methylbutanoyl]oxy}-1,2,6,7,8,8a-hexahydronaphthalen-1-yl]-3,5-dihydroxyheptanoate; A mixture containing lovastatin and approximately 0.2% lovastatin acid, 0.2% mevastatin, 0.4% dehydrolovastatin and0.3% lovastatin dimer (USP);