Similar names: Hydantoin, 5,5-diphenyl- (8CI); 5,5-Diphenyl-1H-imidazolidine-2,4-dione; 5,5-Diphenyl-2,4-imidazolidinedione; 5,5-Diphenylhydantoin; 5,5-Diphenylimidazoline-2,4-dione; Aleviatin; DPH; Denyl; Di-Hydan; Di-Lan; Dihycon; Dilabid; Dintoina; Diphantoin; Diphedan; Diphenat; Diphenylan; Diphenylhydantoin; Ekko; Hidantal; Hydantol; Ipanten; Lehydan; Lepitoin; NSC 8722; Phenytek; Phenytin; Phenytoin; Phenytoine; Phenytoinum; Sodanton; Zentropil