5-羟甲基尿嘧啶

5-(2-hydroxyethoxymethyl)-1H-pyrimidine-2,4-dione

5-甲基脲嘧啶

2,4-二氯-5-乙基硫甲基嘧啶

5-[(4-fluorophenyl)sulfanylmethyl]-1H-pyrimidine-2,4-dione