2,4-二羟基-6-甲基嘧啶

5-碘-6-甲基尿嘧啶

5,5-dibromo-6-hydroxy-6-methyl-1,3-diazinane-2,4-dione

5-溴-6-甲基-2-甲硫基-1H-嘧啶-4-酮

6-甲基-4-羟基-2-甲硫基嘧啶