Methyl 2,6-dichloronicotinateMethyl 2,6-dichloropyridine-3-carboxylate2,6-二氯吡啶-3-羧酸甲酯Methyl 2,6-dichloronicotinate2,6-二氯烟酸甲酯methyl 2,6-dichloropyridine-3-carboxylate2,6-二氯烟酸甲酯Methyl 2,6-dichloronicotinate2,6-Dichloronicotinic acid methyl esterMethyl 2,6-dichloropyridine-3-carboxylate