仲班酸

6-[hydroxy-(5-methylfuran-2-yl)methyl]-1,3-dimethylpyrimidine-2,4-dione

(5Z)-6-methyl-5-(phenylhydrazinylidene)pyrimidine-2,4-dione

2,4-二氯-5-(氯甲基)-6-甲基嘧啶

6-(氯甲基)脲嘧啶