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