1-[2,4-Dichloro-.beta.-[(2,4-dichlorobenzyl)oxy]phenethyl]-3-(p-fluorophenacyl)imidazolium chloride 1H-Imidazolium, 1-[2-(2,4-dichlorophenyl)-2-[(2,4-dichlorophenyl)methoxy]ethyl]-3-[2-(4-fluorophenyl)-2-oxoethyl]-, chloride 53597-28-7 Fludazonium chloride NSC351149 R 23,633