ALLOXAN HYDRATE5-Oxobarbituric acidMesoxalylureapyrimidine-2,4,5,6(1H,3H)-tetraoneAlloxanAlloxane2,4,5,6-pyrimidinetetrone5,6-dioxouracil5-oxobarbituric acid2,4,5,6-Tetraoxohexahydropyrimidine2,4,5,6(1H,3H)-PyrimidinetetronePyrimidinetetroneMesoxalylcarbamidealloxanMesoxalylureaNSC 7169