Synonyms: Thialbarbital sodium;Intranarcon;Intranarcone;Kemithal;Sodium 5-allyl-5-(delta(sup 2)-cyclohexenyl)-2-thiobarbiturate;Sodium allylcyclohexenylthiobarbiturate;Thialbarbitone sodium;UNII-RHK739S84F;4,6(1H,5H)-Pyrimidinedione, 5-(2-cyclohexen-1-yl)dihydro-5-(2-propenyl)-2-thioxo-, monosodium salt;Barbituric acid, 5-allyl-5-(2-cyclohexen-1-yl)-2-thio-, sodium salt;sodium 5-cyclohex-2-en-1-yl-6-oxo-5-prop-2-en-1-yl-2-thioxo-1,2,5,6-tetrahydropyrimidin-4-olate