N,N'-dibromo-5,5-diphenylhydantoin, EINECS 296-232-7, 2,4-Imidazolidinedione,1,3-dibromo-5,5-diphenyl, 1,3-dibromo-5,5-diphenyl-imidazolidine-2,4-dione, N,N-dibromophenytoin, 1,3-Dibrom-5,5-diphenyl-imidazolidin-2,4-dion, 1,3-dibromo-5,5-diphenylhydantoin, 1,3-Dibromo-5,5-diphenyl-2,4-imidazolidinedione