Zidovudine STD- 3'-Azido-3'-deoxythymidine, Azidothymidine
Zidovudine Impurity-B 1-(3-chloro-2,3-dideoxy-β-D-erythro-pentofuranosyl)-5-methylpyrimidine-2,4(1H,3H)-dione; 1-[(2R,4S,5R)-4-chloro-5-(hydroxymethyl)oxolan-2-yl]-5-methylpyrimidine-2,4-dione
Zidovudine Impurity-G 1-[(2R,4S,5S)-4-azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]-3-[(2S,3S,5R)-2-(hydroxymethyl)-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-3-yl]-5-methylpyrimidine-2,4(1H,3H)-dione, 3′-(3′-Azido-3′-deoxythymidin-3-yl)-3′-deoxythymidine