1722-12-9
2-氯嘧啶
→
~97%
34671-83-5
2 2'-联嘧啶
31462-54-1
2-碘嘧啶
~90%
4595-60-2
2-溴嘧啶
~43%
45695-56-5
2-嘧啶甲脒
+
289-96-3
1,2,3-三嗪
~10%