Zidovudine EP Impurity A ; 1-[(2R,5S)-5-(Hydroxymethyl)-2,5-dihydrofuran-2-yl)-5-methylpyrimidine-2,4(1H,3H)-dione ; CAS # 3056-17-5 ;

Stavudine BP Impurity A ; Zidovudine EP Impurity C ; Zidovudine USP RC C ; Thymine (USP) ; 5-Methylpyrimidine-2,4(1H,3H)-dione ; CAS # 65-71-4 ;

Stavudine BP Impurity�B ; 1-(2-Deoxy-β-D-threopentofuranosyl)-5-methylpyrimidine-2,4(1H,3H)-dione ; CAS # 16053-52-4 ;

Stavudine BP Impurity�C ; Zidovudine USP RC D ; Thymidine ; [1-(2-Deoxy-beta-D-ribofuranosyl)]thymine ; CAS # 50-89-5 ;

Stavudine BP Impurity�D ; Stavudine Lactone Impurity ; 1-[(2R)-5-Oxo-2,5-dihydrofuran-2-yl]-5-methylpyrimidine2,4(1H,3H)-dione ;

Stavudine BP Impurity�E ; Stavudine alpha-Isomer ; Stavudine alpha-Anomer ; 1-(2,3-Dideoxy-α-D-glycero-pent-2-enofuranosyl)-5-methylpyrimidine-2,4(1H,3H)-dione ;

Stavudine BP Impurity F ; 1-(3,5-Anhydro-2-deoxy-β-D-threo-pentofuranosyl)-5methylpyrimidine-2,4(1H,3H)-dione ; CAS # 7481-90-5 ;

Stavudine BP Impurity G ; 5′-O-[[(2S,5R)-5-(5-Methyl-2,4-dioxo-3,4-dihydropyrimidine-1(2H)-yl)-2,5-dihydrofuran-2-yl]methyl]-3′-epithymidine ;

Stavudine BP Impurity H ; 1-[2-Deoxy-5O-(1-methylethyl)-β-D-erythro-pentofuranosyl]-5-methylpyrimidine-2,4(1H,3H)-dione ;