Synonyms: 2,4,6(1H,3H,5H)-Pyrimidinetrione,5-(2-methylpropyl)-5-(2-propenyl)-, monosodium salt (9CI); Barbituric acid,5-allyl-5-isobutyl-, sodium deriv. (7CI); Barbituric acid, 5-allyl-5-isobutyl-,sodium salt (8CI); Butalbital sodium; Sodium sandoptal