英文别名4-(4-acetamido-3-fluorophenoxy)-N-methylpyridine-2-carboxamide; 4-[4-(Acetylamino)-3-fluorophenoxy]-N-methyl-2-pyridinecarboxamide; Regorafenib EP Impurity B; Regorafenib impurity H; Regorafenib Impurity F; 2-Pyridinecarboxamide, 4-[4-(acetylamino)-3-fluorophenoxy]-N-methyl- 
