Synonyms: Resorcinol,4,4'-thiodi- (6CI,8CI);2,2',4,4'-Tetrahydroxybiphenyl sulfide;2,2',4,4'-Tetrahydroxydiphenyl sulfide;2,2',4,4'-Tetrahydroxydiphenylthioether;4,4'-Diresorcyl sulfide;4,4'-Thiobis(resorcinol);4,4'-Thiodiresorcinol;Bis(2,4-dihydroxyphenyl) sulfide;NSC 59828;