2-24-00-00139 (Beilstein Handbook Reference) 3-(p-Ethoxyphenyl)-2-thiohydantoin 32261-88-4 4-Imidazolidinone, 3-(4-ethoxyphenyl)-2-thioxo- BRN 0196494 Hydantoin, 3-(p-ethoxyphenyl)-2-thio-