Methylenediphenyl-4,4'-diamidine (63690-09-5) is also called as Methylenediphenyl-4,4'-diamidine ; p,p'-Diamidinodiphenylmethane Benzenecarboximidamide , 4,4'-methylenebis- ; 4-[(4-carbamimidoylphenyl)methyl]benzenecarboximidamide .