SMILES: C1=CC(=C(C=C1C2=CC(=C(C=C2)N)N)N)N
Description: The molecule is a member of the class of biphenyls that is benzidine in which one of the hydrogens ortho to each of the amino groups has been replaced by an amino group. It has a role as a histological dye. It is a member of biphenyls and a substituted aniline.