Synonyms: Barbituricacid, 5-ethyl-5-hexyl- (8CI);5-Ethyl-5-hexylbarbituric acid;5-Hexyl-5-ethylbarbituric acid;NSC 32303;Ortal;Ortol;5-ethyl-5-hexylpyrimidine-2,4,6(1H,3H,5H)-trione;2,4,6(1H,3H,5H)-pyrimidinetrione, 5-ethyl-5-hexyl-;5-Ethyl-5-hexyl-2,4,6(1H,3H,5H)-pyrimidinetrione;Acide hexylethylbarbiturique;Barbituric acid, 5-ethyl-5-hexyl-;Hexethal;5-Ethyl-5-hexylbarbituric acid;