Synonyms: bis[2-[[4-(dimethylamino)phenyl]azo]-1,3-dimethyl-1H-imidazolium] tetrachlorozincate(2-);1H-Imidazolium, 2-[[4-(dimethylamino)phenyl]azo]-1,3-dimethyl-, (T-4)-tetrachlorozincate;2-[[4-(dimethylamino)phenyl]azo]-1,3-dimethyl-1h-imidazoliu ( beta-4)-tetra;chlorozincate;1H-Imidazolium, 2-[[4-(dimethylamino)phenyl]azo]-1,3-dimethyl-, (T-4)-tetrachlorozincate(2-) (2:1)