10122-07-3 4,4'-Biphenyldicarboxamidine, N,N''-bis[p-(methylamidino)phenyl]-, tetrahydrochloride NSC77883 [1,1'-Biphenyl]-4,4'-dicarboximidamide, N,N''-bis[4-[imino-(methylamino)methyl]phenyl]-, tetrahydrochloride