Einecs 240-021-4

sodium 4,4'-dinitrostilbene-2,2'-disulphonate

Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis(5-nitro-, sodium salt

Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis(5-nitro-, sodium salt (1:)