2,4,5,6(1H,3H)-Pyrimidinetetrone 2,4,5,6-Pyrimidintetron 2,4,5,6-Tetraoxohexahydropyrimidine 50-71-5 ALLOXAN Alloxan 7169 Alloxane Barbituric acid, 5-oxo- Mesoxalylcarbamide Mesoxalylurea NSC7169 Urea, mesoxalyl- WLN: T6MVMVVVJ