2-巯基-4,5-二氨基嘧啶

4,5-二氨基嘧啶

2-氯嘧啶-4,5-二胺

2,4-二氨基-5-硝基嘧啶

2-(4-methylpiperazin-1-yl)-5-nitropyrimidin-4-amine