2,4-Imidazolidinedione, 5-(3,4-dimethoxyphenyl)- (9CI) 4-25-00-00464 (Beilstein Handbook Reference) 5-(3,4-Dimethoxyphenyl)hydantoin 74038-69-0 BRN 0224981 Hydantoin, 5-(3,4-dimethoxyphenyl)- NSC 101481