Synonyms: 4,6(1H,5H)-Pyrimidinedione,5-[2-(diethylamino)ethyl]dihydro-5-(1-methylbutyl)-2-thioxo-, monohydrochloride(9CI); Barbituric acid, 5-[2-(diethylamino)ethyl]-5-(1-methylbutyl)-2-thio-,hydrochloride (7CI); Barbituric acid,5-[2-(diethylamino)ethyl]-5-(1-methylbutyl)-2-thio-, monohydrochloride (8CI)