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2-Hydrazinopyridine dihydrochloride

Pyridinium fluorochromate

2,6-Dihydroxypyridine hydrochloride

1-Fluoropyridinium tetrafluoroborate

4-Chloropyridine N-oxide

2-Chloropyridine N-oxide hydrochloride

2-Hydroxy-3,5-dinitropyridine

2,6-Dichloropyridine N-oxide

3-Nitro-2-pyridinesulfenyl chloride

4-Amino-2,3,5,6-tetrafluoropyridine