Atazanavir

Atazanavir (Base) Atazanavir (Base) :

Dimethyl (3S,8S,9S,12S)-9-benzyl-3,12,di-tert-butyl-8-hydroxy-4,11-dioxo-6-(p-2-pyridylbenzyl)-2,5,6,10,13-pentaazatetradecanedioate ; CAS : 198904-31-3 ; C38H52N6O7 ; Mol. Wt.: 704.86 ;
Atazanavir Des(pyridylbenzyl) Impurity Atazanavir Des(pyridylbenzyl) Impurity:

(3S,8S,9S,12S)-3,12-Bis(1,1-dimethylethyl)-8-hydroxy-4,11-dioxo-9-(phenylmethyl)-2,5,6,10,13-pentaazatetradecanedioic acid 1,14-dimethyl ester ; CAS : 1192224-24-0 ; C26H43N5O7 ; MW: 537.65 ;
Atazanavir p-Hydroxy Impurity Atazanavir p-Hydroxy Impurity :

(3S,8S,9S,12S)-3,12-Bis(1,1-dimethylethyl)-8-hydroxy-4,11-dioxo-9-(p-hydroxyphenylmethyl)-6-[[4-(2-pyridinyl)phenyl]methyl]-dimethyl ester ; C38H52N6O8 ; MW: 720.85 ;
Atazanavir Sulfate Atazanavir Sulfate:

Dimethyl (3S,8S,9S,12S)-9-benzyl-3,12,di-tert-butyl-8-hydroxy-4,11-dioxo-6-(p-2-pyridylbenzyl)-2,5,6,10,13-pentaazatetradecanedioate sulfate ; CAS : 229975-97-7 ; C38H54N6O11S ; MW: 802.93 ;
Atazanavir USP RC A Atazanavir RC A:

(S)-2-[(Methoxycarbonyl)amino]-3,3-dimethylbutanoic acid ; CAS : 162537-11-3 ; C8H15NO4 ; MW: 189.21 ;