1-Methyl-4-(3-nitrostyryl)cinnolinium p-toluenesulfonate, EINECS 265-588-5, 1-Methyl-4-(2-(3-nitrophenyl)vinyl)cinnolinium toluene-p-sulphonate, Cinnolinium,1-methyl-4-(2-(3-nitrophenyl)ethenyl)-,salt with 4-methylbenzenesulfonic acid (1:1), Cinnolinium,1-methyl-4-(2-(3-nitrophenyl)ethenyl)-,4-methylbenzenesulfonate (1:1),