EINECS 264-006-7, 5,5'-dinitro-2,2'-sulfanediyl-bis-benzenesulfonic acid, 2,2'-thiobis(5-nitrobenzenesulfonic) acid, benzenesulfonic acid,2,2'-thiobis[5-nitro, 5,5'-Dinitro-2,2'-sulfandiyl-bis-benzolsulfonsaeure, 2,2'-sulfanediylbis(5-nitrobenzenesulfonic acid), 2,2'-Thiobis(5-nitrobenzenesulphonic) acid