Uracil, >-99%, C4H4N2O2, CAS Number-66-22-8, uracil, pirod, pyrod, 2,4-pyrimidinedione, hybar x, 2,4-dioxopyrimidine, 2,4-pyrimidinediol, pyrimidine-2,4 1h,3h-dione, 2,4-dihydroxypyrimidine, 2,4 1h,3h-pyrimidinedione, 50g, 606623, CHEBI:17568, 200-621-9,