atorvastatin acid and its Impurities
A lipid lowering agent, Atorvastatin is used in the treatment of cardiovascular diseases.It is a competitive inhibitor of HMG-CoA reductase.It is a pyrrole and heptanoic acid derivative which acts as a ANTICHOLESTEREMIC AGENT that is used to reduce serum levels of LDL-CHOLESTEROL. Reference standards of Atorvastatin Acid API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


Atorvastatin Acid - Impurity F (Calcium Salt)
(3R,5R)-7-[(3R,5R)-7-[2-(4-Fluorophenyl)-3-phenyl-4-(phenylcarbamoyl)-5-(propan-2-yl)-1H-pyrrol-1-yl]-3,5-dihydroxyheptanamido]-3,5-dihydroxyheptanoic Acid Calcium Salt
Catalogue No.:PA 01 83060
CAS :
1105067-87-5
Molecular Formula : C40H48FN3O8•0.5Ca
Molecular Weight : 736.86


Atorvastatin Acid - Impurity F (Freebase)
(3R,5R)-7-[(3R,5R)-7-[2-(4-Fluorophenyl)-3-phenyl-4-(phenylcarbamoyl)-5-(propan-2-yl)-1H-pyrrol-1-yl]-3,5-dihydroxyheptanamido]-3,5-dihydroxyheptanoic Acid
Catalogue No.:PA 01 83061
CAS :
887196-24-9
Molecular Formula : C40H48FN3O8
Molecular Weight : 717.82


Atorvastatin Acid - Impurity F (Sodium Salt)
(3R,5R)-7-[(3R,5R)-7-[2-(4-Fluorophenyl)-3-phenyl-4-(phenylcarbamoyl)-5-(propan-2-yl)-1H-pyrrol-1-yl]-3,5-dihydroxyheptanamido]-3,5-dihydroxyheptanoic Acid Sodium Salt
Catalogue No.:PA 01 83062
CAS :
1371615-56-3
Molecular Formula : C40H47FN3NaO8
Molecular Weight : 739.8


(3R,5R)-7-(9-Fluoro-2-isopropyl-3-(phenylcarbamoyl)-1H-dibenzo[e,g]indol-1-yl)-3,5-dihydroxyheptanoic Acid
(3R,5R)-7-(9-Fluoro-2-isopropyl-3-(phenylcarbamoyl)-1H-dibenzo[e,g]indol-1-yl)-3,5-dihydroxyheptanoic Acid
Catalogue No.:PA 01 83525
CAS :
1086388-65-9
Molecular Formula : C33H33FN2O5
Molecular Weight : 556.62


1-((3R,5R)-6-Carboxy-3,5-dihydroxyhexyl)-5-(4-fluorophenyl)-2-isopropyl-4-phenyl-1H-pyrrole-3-carboxylic Acid
1-((3R,5R)-6-Carboxy-3,5-dihydroxyhexyl)-5-(4-fluorophenyl)-2-isopropyl-4-phenyl-1H-pyrrole-3-carboxylic Acid
Catalogue No.:PA 01 83605
CAS :
1821498-27-4
Molecular Formula : C27H30FNO6
Molecular Weight : 483.53


(3R,5R)-7-(1-(4-Fluorophenyl)-4-isopropyl-6-phenyl-5-(phenylcarbamoyl)-2,3-dioxa-7-azabicyclo[2.2.1]hept-5-en-7-yl)-3,5-dihydroxyheptanoic Acid
(3R,5R)-7-(1-(4-Fluorophenyl)-4-isopropyl-6-phenyl-5-(phenylcarbamoyl)-2,3-dioxa-7-azabicyclo[2.2.1]hept-5-en-7-yl)-3,5-dihydroxyheptanoic Acid
Catalogue No.:PA 01 83625
CAS :
NA
Molecular Formula : C33H35FN2O7
Molecular Weight : 590.64


Atorvastatin Acid - Impurity Q (Sodium Salt)
(3R,5R)-7-[5-(4-Fluorophenyl)-2-oxo-4-phenyl-3-(phenylcarbamoyl)-3-(propan-2-yl)-2,3-dihydro-1H-pyrrol-1-yl]-3,5-dihydroxyheptanoic Acid Sodium Salt
Catalogue No.:PA 01 83710
CAS :
148217-40-7
Molecular Formula : C33H35FN2NaO6
Molecular Weight : 597.64


2-(2-(2-(4-fluoro-phenyl)-2-oxo-1-phenyl-ethyl)-4-methyl-3-oxo-pentanoylamino)-3-phenyl-propionic Acid Ethyl Ester
2-(2-(2-(4-fluoro-phenyl)-2-oxo-1-phenyl-ethyl)-4-methyl-3-oxo-pentanoylamino)-3-phenyl-propionic Acid Ethyl Ester
Catalogue No.:PA 01 83760
CAS :
NA
Molecular Formula : C31H32FNO5
Molecular Weight : 517.59


(3R,5R)-3,5-Dihydroxy-7-(2-isopropyl-5-(4-morpholinophenyl)-4-phenyl-3-(phenylcarbamoyl)-1H-pyrrol-1-yl)heptanoic Acid
(3R,5R)-3,5-Dihydroxy-7-(2-isopropyl-5-(4-morpholinophenyl)-4-phenyl-3-(phenylcarbamoyl)-1H-pyrrol-1-yl)heptanoic Acid
Catalogue No.:PA 01 0831000
CAS :
NA
Molecular Formula : C37H43N3O6
Molecular Weight : 625.77


1-((3R,5R)-7-Amino-3,5-dihydroxy-7-oxoheptyl)-5-(4-fluorophenyl)-2-isopropyl-N,4-diphenyl-1H-pyrrole-3-carboxamide
1-((3R,5R)-7-Amino-3,5-dihydroxy-7-oxoheptyl)-5-(4-fluorophenyl)-2-isopropyl-N,4-diphenyl-1H-pyrrole-3-carboxamide
Catalogue No.:PA 01 0831001
CAS :
2125501-02-0
Molecular Formula : C33H36FN3O4
Molecular Weight : 557.67


Tert-butyl 2-((4S,6R)-6-(2-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)ethyl)-2,2-dimethyl-1,3-dioxan-4-yl)acetate
Tert-butyl 2-((4S,6R)-6-(2-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)ethyl)-2,2-dimethyl-1,3-dioxan-4-yl)acetate
Catalogue No.:PAI 01 083005
CAS :
NA
Molecular Formula : C40H47FN2O5
Molecular Weight : 654.82


(3S,5R)-Tert-butyl 7-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)-3,5-dihydroxyheptanoate
(3S,5R)-Tert-butyl 7-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)-3,5-dihydroxyheptanoate
Catalogue No.:PAI 01 083006
CAS :
2588261-38-3
Molecular Formula : C37H43FN2O5
Molecular Weight : 614.76