100-70-9
2-氰基吡啶
→
~8%
2176-62-7
五氯吡啶
+
33252-29-8
2-氯-6-氰基吡啶
17824-83-8
3,4,5,6-四氯吡啶氰
139485-42-0
3,4,5-trichloropyridine-2-carbonitrile