3-(3-(Diethylamino)propyl)-2-thiohydantoin hydrochloride 4-Imidazolidinone, 3-(3-(diethylamino)propyl)-2-thioxo-, monohydrochloride 86503-36-8 Hydantoin, 3-(3-(diethylamino)propyl)-2-thio-, hydrochloride