Synonyms: 2,4,6(1H,3H,5H)-Pyrimidinetrione,5-(2-cyclopenten-1-yl)-5-(2-propenyl)- (9CI); Barbituric acid,5-allyl-5-(2-cyclopenten-1-yl)- (6CI,7CI,8CI);5-Allyl-5-(1-cyclopentenyl-2)barbituric acid;5-Allyl-5-(2-cyclopenten-1-yl)barbituric acid; Allylcyclopentenylbarbital;Allylpental; Ciclopal; Cyclopal; Cyclopen; Cyclopental; Cyclopentenylallylbarbituricacid; Cyclopentobarbital; Cyclopentobarbitone; Dormisan