5-(4-Hydroxyphenyl)-5-phenylhydantoin was used in enantiomeric separation of chiral pharmaceuticals using a teicoplanin chiral stationary phase by aqueous and non-aqueous packed capillary electrochromatography. It was used as internal standard in determination of phenylbutazone and its metabolite oxyphenbutazone in human plasma by GLC.
ChEBI: A imidazolidine-2,4-dione that consists of hydantoin bearing phenyl and 4-hydroxyphenyl substituents at position 5.
5-(4-Hydroxyphenyl)-5-phenylhydantoin is the major metabolite of phenytoin.
