英文别名4-Thiothymine; 4-Thio-5-methylpyrimidin-2-one; 5-Methyl-4-thiouracil; 2-Oxo-4-mercapto-5-methylpyrimidine; 2(1H)-Pyrimidinone, 3,4-dihydro-5-methyl-4-thioxo- (9CI); 5-Methyl-4-thioxo-3,4-dihydro-2(1H)-pyrimidinone; 5-methyl-4-sulfanylidene-1H-pyrimidin-2-one; 2(1H)-Pyrimidinone, 3,4-dihydro-5-methyl-4-thioxo- 
