Synonyms: (S)-(-)-Seconal;(S)-5-Allyl-5-(2'-pentyl)barbituric acid;2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-(1-methylbutyl)-5-(2-propenyl)-, (S)-;2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-[(1S)-1-methylbutyl]-5-(2-propenyl)- (9CI);Barbituric acid, 5-allyl-5-(1-methylbutyl)-, (S)-(-)- (8CI)