Ethyl 4-bromo-2-(difluoromethyl)-5-nitropyridine-3-carboxylate
5-Bromo-3-(difluoromethyl)-4-methylpyridine-2-sulfonamide
Ethyl 2-bromo-3-(difluoromethyl)-5-iodopyridine-4-acetate
3-Bromo-5-(difluoromethyl)-2-methylpyridine-6-sulfonamide
+86(0) 189-6910-6387
[email protected]