The molecule is an imine that is 4-methylidenecyclohexa-2,5-dien-1-imine in which both the hydrogens of the methylidene group are replaced by 4-aminophenyl groups. The hydrochloride salt is the histological dye 'pararosaniline'. It has a role as a fluorochrome and a histological dye. It is a substituted aniline and an imine. It is a conjugate base of a pararosaniline(1+).
4-[(4-aminophenyl)-(4-iminocyclohexa-2,5-dien-1-ylidene)methyl]aniline