API
IMPURITY
CHEMICAL NAME
STRUCTURE
2
Stavudine

EP Impurity A

5-methylpyrimidine-2,4(1H,3H)-dione Stavudine-EP-Impurity-A
Stavudine

EP Impurity B

1-(2-deoxy-b-D-threo-pentofuranosyl)-5-methylpyrimidine-2,4(1H, 3H)-dione(3-epithymidine) Stavudine-EP-Impurity-B
Stavudine

EP Impurity F

1-(3,5-anhydro-2-deoxy-b-D-threo-pentofuranosyl)-5-methylpyrimidine-2,4(1H,3H)-dione Stavudine-EP-Impurity-F
Stavudine

Stavudine Impurity

3',5'-Di-(O-mesyl)-thymidine Stavudine-Impurity-3',5'-Di
Stavudine

Stavudine Impurity

5'Benzoyl-2',3'-didhydro-3'-deoxythymidine Stavudine-Impurity-5'Benzoyl