diethyl[4-[[4-(diethylamino)phenyl][5-[(2,4-dinitrophenyl)amino]-2,4-disulphophenyl]methylene]-2,5-cyclohexadien-1-ylidene]ammonium hydroxide

N-[4-[[4-(Diethylamino)phenyl][5-[(2,4-dinitrophenyl)amino]-2-sulfonato-4-sulfophenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-ethylethanaminium

Ethanaminium, N-[4-[[4-(diethylamino)phenyl] [5-[(2,4-dinitrophenyl)amino]-2,4-disulfophenyl ]methylene]-2,5-cyclohexadien-1-ylidene]-N-ethy l-, hydroxide, inner salt