Fosinopril impurity B - (2RS,4RS)-4-cyclohexyl-1-[[(RS)-[(1SR)-2-methyl-1-(1-oxopropoxy)propoxy](4-phenylbutyl)phosphoryl]acetyl]pyrrolidine-2-carboxylic acid

Fosinopril impurity A - (2S,4S)-4-cyclohexyl-1-[[(R)-hydroxy(4-phenylbutyl)phosphoryl] acetyl]pyrrolidine-2-carboxylic acid

Fosinopril sodium

Pyridoxine impurity A - 6-methyl-1,3-dihydrofuro[3,4-c]pyridin-7-ol

Valaciclovir for system suitability

Xylazine impurity mixture

Cyproterone impurity mixture

Foscarnet impurity D - Ethyl (diethoxyphosphinyl)formate

Captopril impurity D - (2RS)-3-bromo-2-methylpropanoic acid

Captopril impurity C - (2RS)-2-methyl-3-sulphanylpropanoic acid