API
IMPURITY
CHEMICAL NAME
STRUCTURE
2
Triamterene

EP Impurity D

phenylacetonitrile (benzyl cyanide). Triamterene-EP-Impurity-D
Triamterene

EP Impurity A

5-nitrosopyrimidine-2,4,6-triamine (nitrosotriaminopyrimidine), Triamterene-EP-Impurity-A