1224-08-4 2,4-Imidazolidinedione, 3-amino-5,5-diphenyl- 3-Amino-5,5-diphenylhydantoin 5-24-08-00401 (Beilstein Handbook Reference) BRN 0262278 HYDANTOIN, 3-AMINO-5,5-DIPHENYL- IL 40 N-Aminodiphenylhydantoin