4-(4-Amino-3-fluorophenoxy)-N-methylpyridine-2-carboxamide; 4-(4-Amino-3-fluorophenoxy)-N-methyl-2-pyridinecarboxamide; 4-(4-Amino-3-fluorophenoxy)pyridine-2-carboxylic Acid Methylamide; Regorafenib related compound A (USP); 4-(4-Amino-3-fluorophenoxy)-N-methylpicolinamide