7-chloro-1,3-dimethylpteridine-2,4(1H,3H)-dione

7-hydroxy-1,3-dimethylpteridine-2,4(1H,3H)-dione

2-[(4-amino-1,3-dimethyl-2,6-dioxopyrimidin-5-yl)amino]acetonitrile

1,3-二甲基-6-氨基脲嘧啶

5,6-二氨基-1,3-二甲基尿苷水合物