2-羟基-4-肼基嘧啶

尿嘧啶

4-甲硫基-3H-嘧啶-2-酮

ethyl 2-[(2-oxo-1H-pyrimidin-6-yl)sulfanyl]acetate

1-methyl-4-(methylsulfanyl)pyrimidin-2(1H)-one