2-Chloro-6-(difluoromethyl)pyridine-3-carboxylic acid
2-Chloro-5-(difluoromethyl)pyridine-4-carboxylic acid
2-Chloro-4-(difluoromethyl)pyridine-6-carboxylic acid
2-Chloro-3-(difluoromethyl)pyridine-5-carboxylic acid
+86(0) 189-6910-6387
[email protected]