4-Chloro-5-(2,3-dichlorophenoxy)-1,2-benzenediamine is an intermediate in the synthesis of 5-Chloro-6-(2,3-dichlorophenoxy)-1,3-dihydro-2H-benzimidazol-2-one (C365505), which is a metabolite of Triclabendazole (T774175), the only anthelmintic drug, which is active against immature, mature and adult stages of fluke.