3-Bromo-2-(chloromethyl)-4-(difluoromethyl)-5-iodopyridine
3-Bromo-2-cyano-6-(difluoromethyl)pyridine-5-sulfonyl chloride
2-Bromo-6-(chloromethyl)-4-(difluoromethyl)-3-iodopyridine
3-Bromo-2-cyano-5-(difluoromethyl)pyridine-6-sulfonyl chloride
+86(0) 189-6910-6387
[email protected]