25787-00-2 NSC70693 Urea, 1,1'-(2-chloro-p-phenylene)bis[3-(m-2-imidazolin-2-ylphenyl)-, dihydrochloride Urea, N,N''-(2-chloro-1,4-phenylene)bis[N'-[3-(4,5-dihydro-1H-imidazol-2-yl]phenyl]-, dihydrochloride