Synonyms: CRL 40,468;3-(5,5-Di-p-chlorophenyl-hydantoinyl)-acetohydroxamic acid;4,4-Bis(4-chlorophenyl)-2,5-dioxo-N-hydroxy-1-imidazolidineacetamide;1-Imidazolidineacetamide, 4,4-bis(4-chlorophenyl)-2,5-dioxo-N-hydroxy-;AC1MIOFT;LS-78957;2-[4,4-bis(4-chlorophenyl)-2,5-dioxoimidazolidin-1-yl]-N-hydroxyacetamide;65051-07-2