Domperidone EP Impurity A

Chemical Name: Des[3-(2,3-dihydro-2-oxo-1H-benzimidazol-1-yl)propyl] Domperidone ; 4-(6-Chloro-1,2-dihydro-2-oxobenzo[d]imidazol-3-yl)piperidine ; 5-Chloro-1-piperidin-4-yl-1,3-dihydrobenzimidazol-2-one ; 5-Chloro-1-(4-piperidinyl)-2-benzimidazolidinone