119-80-2 2,2'-Dithiobis[benzoic acid] 2,2'-Dithiodibenzoic acid Benzoic acid, 2,2'-dithiobis- Benzoic acid, 2,2'-dithiodi- Bis(2-carboxyphenyl) disulfide Bis(o-carboxylphenyl) disulfide Diphenyldisulfide-2,2'-dicarboxylic acid NSC5346