10309-95-2 16044-24-9 Dimethyl(4-(4-(dimethylamino)-alpha-phenylbenzylidene)-2,5-cyclohexadien-1-ylidene)ammonium hydrogen sulphate EINECS 240-185-7 Methanaminium, N-(4-((4-(dimethylamino)phenyl)phenylmethylene)-2,5-cyclohexadien-1-ylidene)-N-methyl-, hydrogen sulfate