NSC77886 Urea, 1,1'-p-phenylenebis[3-[p-(1-methyl-2-imidazolin-2-yl)phenyl]-, dihydrochloride Urea, N,N''-1,4-phenylenebis[N'-[4-(4,5-dihydro-1-methyl-1H-imidazol-2-yl)phenyl]-, dihydrochloride