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