Fosamprenavir Calcium and its Impurities
Fosamprenavir Calcium is used along with other medications to treat human immunodeficiency virus. It works by decreasing the amount of HIV in the blood.Reference standards of Fosamprenavir Calcium API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


Calcium (2R,3S)-1-((4-amino-N-isobutylphenyl)sulfonamido)-4-phenyl-3-(((((R)-tetrahydrofuran-3-yl)oxy)carbonyl)amino)butan-2-yl Phosphate
Calcium (2R,3S)-1-((4-amino-N-isobutylphenyl)sulfonamido)-4-phenyl-3-(((((R)-tetrahydrofuran-3-yl)oxy)carbonyl)amino)butan-2-yl Phosphate
Catalogue No.:PA 33 23510
CAS :
NA
Molecular Formula : C25H34CaN3O9PS
Molecular Weight : 623.67


Calcium (2S,3R)-1-((4-amino-N-isobutylphenyl)sulfonamido)-4-phenyl-3-(((((R)-tetrahydrofuran-3-yl)oxy)carbonyl)amino)butan-2-yl Phosphate
Calcium (2S,3R)-1-((4-amino-N-isobutylphenyl)sulfonamido)-4-phenyl-3-(((((R)-tetrahydrofuran-3-yl)oxy)carbonyl)amino)butan-2-yl Phosphate
Catalogue No.:PA 33 23520
CAS :
NA
Molecular Formula : C25H34CaN3O9PS
Molecular Weight : 623.67


Calcium (2S,3R)-1-((4-amino-N-isobutylphenyl)sulfonamido)-4-phenyl-3-(((((S)-tetrahydrofuran-3-yl)oxy)carbonyl)amino)butan-2-yl Phosphate
Calcium (2S,3R)-1-((4-amino-N-isobutylphenyl)sulfonamido)-4-phenyl-3-(((((S)-tetrahydrofuran-3-yl)oxy)carbonyl)amino)butan-2-yl Phosphate
Catalogue No.:PA 33 23530
CAS :
NA
Molecular Formula : C25H34CaN3O9PS
Molecular Weight : 623.67