2,4(1H,3H)-Pyrimidinedione, dihydro- 5,6-Dihydro-2,4-dihydroxypyrimidine 5,6-Dihydrouracil 504-07-4 AI3-50443 Dihydrouracil EINECS 207-982-1 Hydrouracil (8CI) NSC 11867