2,6-Dichloro-5-fluoronicotinic acid2,6-Dichloro-5-fluoropyridine-3-carboxylic acid2,6-二氯-5-氟尼克酸2,6-Dichloro-5-fluoronicotinic acid 97%2,6-Dichloro-5-fluoronicotinic acid2,6-dichloro-5-fluoropyridine-3-carboxylic acid2,6-二氯-5-氟-3-吡啶甲酸2,6-Dichloro-5-fluoropyridine-3-carboxylic acid2,6-Dichloro-5-fluoro-pyridine-3-carboxylic acid2,6-Dichloro-5-fluoro-3-pyridinecarboxylic acid2,6-二氯-5-氟烟酸