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