5,6-Dihydrothymine, Dihydrothymine, Hydrouracil,5-methyl, 2,4(1H,3H)-Pyrimidinedione, dihydro-5-methyl-, 5-methyl-hydrouracil, 5-methyl-dihydrouracil, 5-methyl-dihydro-pyrimidine-2,4-dione, 5-Methyl-5,6-dihydrouracil, 5,6-Dihydro-5-methyluracil, 5,6-Dihydro-5-methyl-2,4-dioxypyrimidine, 5-Methyl-dihydro-pyrimidin-2,4-dion, 5-methyl-1,3-diazinane-2,4-dione