Impurity Standards

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Simvastatin Impurity A

Product Code:
DH/SMV/1005
Molecular Formula:
C25H40O6
CAS Number:
N/A
Molecular Weight:
436.58
Synonyms: (3R,5R)-7-(1S,2S,6R,8S,8aR)-8-[(2,2-Dimethylbutanoyl)-oxy]-2,6-dimethyl-1,2,6,7,8,8a-hexahydronaphthalene-1-yl]-3,5-dihydroxyheptanoic acid


Simvastatin Impurity B

Product Code:
DH/SMV/1004
Molecular Formula:
C27H40O6
CAS Number:
145576-25-6
Molecular Weight:
460.60
Synonyms: (1S,3R,7S,8S,8aR)-8-[2-[(2R,4R)-4-(Acetyloxy)-6-oxotetrahydro-2H-pyran-2-yl]ethyl]-3,7-dimethyl-1,2,3,7,8,8a-hexahydronaphthalene-1-yl-2,2-dimethyl butanoate


Simvastatin Impurity C

Product Code:
DH/SMV/1001
Molecular Formula:
C25H36O4
CAS Number:
210980-68-0
Molecular Weight:
400.55
Synonyms: (1S,3R,7S,8S,8aR)-3,7-Dimethyl-8-[2-[(2R)-6-oxo-3,6-dihydro-2H-pyran-2-yl]ethyl]-1,2,3,7,8,8a-hexahydronaphthalene-1-yl-2,2-dimethyl butanoate


Simvastatin Impurity E

Product Code:
DH/SMV/1003
Molecular Formula:
C24H36O5
CAS Number:
75330-75-5
Molecular Weight:
404.54
Synonyms: (1S,3R,7S,8S,8aR)-8-[2-[(2R,4R)-4-Hydroxy-6-oxotetrahydro-2H-pyran-2-yl]ethyl]-3,7-dimethyl-1,2,3,7,8,8a-hexahydronaphthalene-1-yl(2S)-2-methyl butanoate


Simvastatin Impurity F

Product Code:
DH/SMV/1007
Molecular Formula:
C24H36O5
CAS Number:
79952-44-6
Molecular Weight:
404.54
Synonyms: 2R)-2-Methylbutanoic Acid (1S,3R,7S,8S,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-naphthalenyl Ester. Epi Lovastatin


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