hydrogen [4-[[4-(diethylamino)phenyl][4-[ethyl(sulphonatobenzyl)amino]-o-tolyl]methylene]-3-methylcyclohexa-2,5-dien-1-ylidene](ethyl)(sulphonatobenzyl)ammonium

Benzenemethanaminium, N-[4-[[4-(diethylamino)phenyl] [4-[ethyl[(sulfophenyl)methyl]amino]-2-methylphenyl ]methylene]-3-methyl-2,5-cyclohexadien-1-yliden e]-N-ethyl-ar-sulfo-, hydroxide, inner salt