Also Called: Methanaminium, N-[4-[[4-(dimethylamino)phenyl]phenylmethylene]-2,5-cyclohexadien-1-ylidene]-N-methyl-, hydrogen sulfate;Methanaminium, N-[4-[[4-(dimethylamino)phenyl] phenylmethylene]-2,5-cyclohexadien-1-ylidene ]-N-methyl-, hydrogen sulfate;Methanaminium, N-[4-[[4-(dimethylamino)phenyl]phenylmethylene]-2,5-cyclohexadien-1-ylidene]-N-methyl-, sulfate (1:1)