4-Chloro-pyridine-2-carboxylic acid methyl ester hydrochlorideMethyl 4-chloropicolinate hydrochlorideMethyl 4-chloropyridine-2-carboxylate hydrochlorideMethyl 4-Chloropicolinate Hydrochloride Salt4-Chloro-2-pyridinecarboxylic Acid Methyl Ester HydrochlorideMethyl 4-Chloropyridine-2-carboxylate Hydrochloride4-Chloro-pyridine-2-carboxylic acid methyl ester hydrochloride