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