The molecule is an iminium ion that forms the cationic portion of the histological dye 'iodine green'. It is an iminium ion and a quaternary ammonium ion.
[4-[(E)-[4-(dimethylamino)phenyl]-(4-dimethylazaniumylidene-3-methylcyclohexa-2,5-dien-1-ylidene)methyl]phenyl]-trimethylazanium