5-Phenyl-4h-1,2,4-triazol-3-amine, is an intermediate in the synthesis of WP155. 5-Phenyl-4h-1,2,4-triazol-3-amine is also used in biological studies to evaluate its pharmacological activity as it can be applied to a method for reducing susceptibility to tumor formation induced by 3-deoxyglucosone and precursors thereof.