2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-butyl-5-(2-propenyl)- 3146-66-5 5-Allyl-5-butylbarbituric acid 5-Allyl-5-n-butylbarbituric acid 5-Butyl-5-allylbarbituric acid Allylbutylbarbituric acid Barbituric acid, 5-allyl-5-butyl- Idobutal NSC27524 n-Butylallylbarbitone n-Butylallylbarbituric acid