atazanavir sulfate and its Impurities
Atazanavir is used in the treatment of HIV. It is an antiretroviral drug of the protease inhibitor (PI) class.. Reference standards of Atazanavir Sulfate API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below


tert-Butyl ((2S,3S)-3-hydroxy-1-phenyl-4-(1-(4-(pyridin-2-yl)benzyl)hydrazinyl)butan-2-yl)carbamate
tert-Butyl ((2S,3S)-3-hydroxy-1-phenyl-4-(1-(4-(pyridin-2-yl)benzyl)hydrazinyl)butan-2-yl)carbamate
Catalogue No.:PA 28 0301012
CAS :
857904-20-2
Molecular Formula : C27H34N4O3
Molecular Weight : 462.59


tert-Butyl 2-((2S,3S)-3-((tert-butoxycarbonyl)amino)-2-hydroxy-4-phenylbutyl)-2-(4-(1-((2S,3S)-3-((tert-butoxycarbonyl)amino)-2-methyl-4-phenylbutyl)piperidin-2-yl)benzyl)hydrazine-1-carboxylate
tert-Butyl 2-((2S,3S)-3-((tert-butoxycarbonyl)amino)-2-hydroxy-4-phenylbutyl)-2-(4-(1-((2S,3S)-3-((tert-butoxycarbonyl)amino)-2-methyl-4-phenylbutyl)piperidin-2-yl)benzyl)hydrazine-1-carboxylate
Catalogue No.:PA 28 0301013
CAS :
NA
Molecular Formula : C48H71N5O7
Molecular Weight : 830.12


Methyl ((5S,8S,9S,14S)-8-benzyl-9-hydroxy-5-isopropyl-15,15-dimethyl-3,6,13-trioxo-11-(4-(pyridin-2-yl)benzyl)-2-oxa-4,7,11,12-tetraazahexadecan-14-yl)carbamate
Methyl ((5S,8S,9S,14S)-8-benzyl-9-hydroxy-5-isopropyl-15,15-dimethyl-3,6,13-trioxo-11-(4-(pyridin-2-yl)benzyl)-2-oxa-4,7,11,12-tetraazahexadecan-14-yl)carbamate
Catalogue No.:PA 28 0301018
CAS :
198904-34-6
Molecular Formula : C37H50N6O7
Molecular Weight : 690.84