2-CHLORO-1-(2-ETHOXYETHYL)-1H-BENZIMIDAZOLE;Emedastinc Impurity B;Imestine EP impurity B;Emedastine Impurity B;-(2-ethoxyethyl)-2-chlorobenzimidazole;1-(2-ethoxyethyl)-2-chlorobenzimidazole;1H-BENZIMIDAZOLE,2-CHLORO-1-(2-ETHOXYETHYL);2-CHLORO-1-(2-ETHOXYETHYL)-1H-BENZO[D]IMIDAZOLE;Emedastine Impurity 2(Emedastine EP Impurity B)