2-Thiohydantoin is an inhibitor of Flg and a reactant for persilylation;2-Thiohydantoin is an inhibitor of Flg and a reactant for persilylation.Reactant for synthesis of:Drugs with antidiabetic activity; Barbituric acid and thiohydantoin derivatives with antimicrobial activity; Possible anticancer agents; Fibroblast growth factor receptor 1 kinase inhibitors; HIV-1 integrase inhibitors; Reactant for persilylation