2,4(1H,3H)-Pyrimidinedione, dihydro- (9CI) 2,4(1H,3H)-pyrimidinedione, dihydro- 4,5-dihydrouracil 5,6-Dihydro-2,4(1H,3H)-pyrimidinedione 5,6-Dihydro-2,4-dihydroxypyrimidine 5,6-Dihydrouracil 504-07-4 AI3-50443 DI-H-uracil Dihydrouracil Hydrouracil Hydrouracil (6CI,8CI) Hydrouracil (8CI)