1) 2-hydroxypyridine-N-oxide, 13161-30-3
2) 2-bromo-4-nitropyridine-N-oxide, 52092-43-0
3) 2-bromopyridin N-oxide hydrochloride, 80866-91-7
4) 2-bromo-4-nitropyridine, 6945-67-1
5) 2, 3-diaminopyridine, 452-58-4
6) 3-iodopyridine, 1120-90-7
7) 3-amino-2-nitropyridine, 13269-19-7
8) 3, 4-diaminopyridine, 54-96-6
9) 4-amino-2-bromopyridine, 7598-35-8
10) 4-Hydroxypyridine-3-sulfonic acid, 51498-37-4
11) 4-chloropyridine-3-sulfonamide, 33263-43-3
12) 4-Chloro-3-pyridinecarboxylic acid, 10177-29-4
13) 4-hydroxy-3-nitropyridine, 6332-56-5
14) 4-chloro-3-nitropyridine, 13091-23-1
15) 5-bromo-2-methylpyridine, 3430-13-5

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