6-oxo-1,6-dihydropyridazine-3-carboxylic acid
methyl 6-chloropyridazine-3-carboxylate
3-Pyridazinecarboxylic acid, 6-amino-, methyl este
3-Pyridinecarboxylic acid, 6-amino-5-chloro-, meth
methyl 6-amino-5-chloropyridazine-3-carboxylate
2,3-dichloro-5-methylpyridine
5,6-dichloronicotinic acid
6-amino-5-chloropyridine-3-carboxylic acid
methyl 6-amino-5-bromopyridazine-3-carboxylate
methyl 6-amino-5-nitropyridazine-3-carboxylate
8-chloroimidazo[1,2-a]pyridine-6-carboxylic acid
8-chloroimidazo[1,2-b]pyridazine-6-carboxylic acid