Na-p-nitrochlorobenzene-o-sulfonate, 6-chloro-3-nitrobenzene-sulfonic acid sodium salt, 2-Chloro-5-nitrobenzenesulfonic acid,sodium salt, sodium 2-chloro-5-nitrobenzenesulfonate, 2-chloro-5-nitrobenzenesulphonic acid sodium salt, 5-nitro-2-chlorobenzenesulfonic acid sodium salt, Sodium 2-chloro-5-nitrobenzenesulphonate, EINECS 213-418-5