Benzamide, N-[4-[imino[[4-[imino[[4-[imino(methylamino)methyl]phenyl]amino]methyl]phenyl]amino]methyl]phenyl]-4-[imino(methylamino)methyl]-, tetrahydrochloride Benzanilide, 4-(N'-methylamidino)-4'-[N'-[p-[N'-[p-(N'-methylamidino)phenyl]amidino]phenyl]amidino]-, tetrahydrochloride NSC80973