5-methylpyrimidine-2,4(1H,3H)-dione; 5-Methyl-2,4(1H,3H)-pyrimidinedione; NSC 14705-d3; NSC 1686634; 4-Hydroxy-5-methylyrimidin-2(1H)-one; 5-Methyluracil; Zidovudine Related Compound D