Also Called: N-[4-[Bis[4-(dimethylamino)phenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-methylmethanaminium, 3-[[4-(phenylamino)phenyl]azo]benzenesulfonate (1:1);Methanaminium, N-[4-[bis[4-(dimethylamino)phenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-methyl-, 3-[[4-(phenylamino)phenyl]azo]benzenesulfonate (1:1);[4-[p,p'-bis(Dimethylamino)benzhydrylidene]cyclohexa-2,5-dien-1-ylidene]dimethylammonium m-[[p-anilinophenyl]azo]benzenesulphonate;Methanaminium, N-[4-[bis[4-(dimethylamino)phenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-methyl-, salt with 3-[[4-(phenylamino)phenyl]azo]benzenesulfonic acid (1:1)