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2,3,5,6tetrachloropyridine

2butoxyethyl"3,5,6trichloro2pyridyloxy"acetate

2hydroxyethylammonium3,6dichloropyridine2carboxylate

3,5dichloro2,4,6trifluoropyridine

3,6dichloropyridine2carboxylic acid

Fluroxypyr "iso" methyl ester

Iproniazid "inn"; ketobemidone hydrochloride "innm"; pyrodostigmine bromide "inn"

Heterocyclic compounds with nitrogen heteroatom[s] only, containing an unfused pyridine ring, whether or not hydrogenated, in the structure, n.e.s.