2,4-Imidazolidinedione, 5,5-dimethyl-3-(4-nitrophenyl)- 3-(p-Nitrophenyl)-5,5-dimethylhydantoin 5,5-Dimethyl-3-(p-nitrophenyl)hydantoin 5-24-05-00357 (Beilstein Handbook Reference) 70974-09-3 BRN 0239399 Hydantoin, 5,5-dimethyl-3-(p-nitrophenyl)-