Synonyms: o-Cresol, a,a'-[[2-(o-hydroxyphenyl)-1,3-imidazolidinediyl]bis(ethylenenitrilo)]di-(6CI);2-(2-Hydroxyphenyl)-1,3-bis[2-(2-hydroxybenzylideneamino)ethyl]imidazolidine;2-(2-Hydroxyphenyl)-1,3-bis[4-(2-hydroxyphenyl)-3-azabut-3-enyl]-1,3-imidazolidine;2-(2'-Hydroxyphenyl)-1,3-bis[4-(2-hydroxyphenyl)-3-azabut-3-enyl]-1,3-imidazolidine;NSC 84389