118-86-5 2,2'-Thiobis(5-aminobenzenesulphonic) acid 6,6'-Thiodimetanilic acid Benzenesulfonic acid, 2,2'-thiobis(5-amino- EINECS 204-281-2 Metanilic acid, 6,6'-thiodi- Metanilic acid, 6,6'-thiodi- (8CI) NSC 7838 Thioanilinedisulfonic acid