1-Imidazolidineacetamide, 2,5-dioxo-4,4-diphenyl-N-hydroxy-alpha-methyl- 2,5-Dioxo-4,4-diphenyl-N-hydroxy-alpha-methyl-1-imidazolidineacetamide 2-(3-(5,5-Diphenylhydantoinyl))-propionohydroxamic acid 65050-97-7 CRL 40,447