... -5,5-dimethylimidazolidine-2,4-dione 2,4-Imidazolidinedione, 1,3-di SpecificationsDBDMH ( 1,3-Dibromo-5,5-Dimethyl Hydantoin) CAS#: 77-48-5 ... Formula: C5H6O2N2Br2 Appearance: Light yellow crystall powderDBDMH ( 1,3-Dibromo-5,5-Dimethyl Hydantoin)CAS#: 77-48-5Formula: C5H6O2N2Br2Appearance ...