1. 2,3-Pyridinediol CAS: 16867-04-2
2. 4-Iodopyridine CAS: 15854-87-2
3. 4-Amino-3,5-dichloropyridine CAS: 22889-78-7
4. 2-Amino-3-hydroxypyridine CAS: 16867-03-1
5. 2-Chloro-5-nitropyridine CAS: 4548-45-2
6. 4-Bromopyridine hydrochloride CAS: 19524-06-2
7. 4-Chloropyridine hydrochloride CAS: 7379-35-3