Sub Group: Hydantoins and Derivatives Catalog Number: 12035 Formula: C13H16N2O2 CAS Number: 201606-44-2 Molecular Weight: 232.28 Synonyms: [(R)-1,3-Dimethyl-5-Ethyl-5-phenylhydantoin](R)-5-Ethyl-1,3-dimethyl-5-phenyl-2,4-imidazolidinedione