Synonyms: 4,6(1H,5H)-Pyrimidinedione,dihydro-5-(1-methylbutyl)-5-(2-propenyl)-2-thioxo-, (R)-;4,6(1H,5H)-Pyrimidinedione,dihydro-5-[(1R)-1-methylbutyl]-5-(2-propenyl)-2-thioxo- (9CI); Barbituric acid,5-allyl-5-(1-methylbutyl)-2-thio-, (R)-(+)- (8CI); (+)-Thiamylal;(R)-(+)-Thiamylal; (R)-Thiamylal