Similar names: Acetic acid, 2,2'-thiobis- (9CI, ACI); 2,2'-Thiobis[acetic acid] (ACI); Acetic acid, thiobis- (3CI); Acetic acid, thiodi- (6CI, 7CI, 8CI); (Carboxymethylthio)acetic acid; 2,2'-Thiodiacetic acid; 2,2'-Thiodiethanoic acid; 2,2'-Thiodiglycolic acid; 2-(Carboxymethylsulfanyl)acetic acid; 2-[(Carboxymethyl)sulfanyl]acetic acid; Dicarboxymethyl sulfide; Dimethylsulfide-α,α'-dicarboxylic acid; Mercaptodiacetic acid; NSC 28743; NSC 40469; NSC 52326; Thiodiacetic acid; Thiodiglycolic acid; β,β'-Thiodiglycolic acid