secobarbital(+-)-secobarbital5-(1-methylbutyl)-5-(2-propenyl)-2,4,6(1H,3H,5H)-pyrimidinetrione5-allyl-5-(1-methylbutyl)-2,4,6(1H,3H,5H)-pyrimidinetrione5-allyl-5-(1-methylbutyl)barbituric acid5-allyl-5-(1-methylbutyl)pyrimidine-2,4,6(1H,3H,5H)-trioneSeconalquinalbarbitonesecobarbitalsecobarbitone