2,4-Imidazolidinedione, 5-ethyl-1-methyl-5-phenyl- 5-24-08-00093 (Beilstein Handbook Reference) 5-Ethyl-1-methyl-5-phenylhydantoin 5696-06-0 BRN 0206293 Deltoin Hydantoin, 5-ethyl-1-methyl-5-phenyl- METHETOIN Metetoin Metetoina [DCIT] Metetoina [Spanish] Metetoine [French] Metetoine [INN-French] Metetoinum [INN-Latin] Metetoinum [Latin] Methetoin [USAN:BAN] N 3 NSC 524411 NSC-524411