英文别名Regorafenib impurity 1; 4-[3-fluoro-4-[[3-(trifluoromethyl)phenyl]carbamoylamino]phenoxy]-N-methylpyridine-2-carboxamide; Regorafenib Impurity E; 4-[3-fluoro-4-[[3-(trifluoromethyl)phenyl]carbamoylamino]phenoxy]-N-methyl-pyridine-2-carboxamide; Regorafenib Impurity 9; 2-Pyridinecarboxamide, 4-[3-fluoro-4-[[[[3-(trifluoromethyl)phenyl]amino]carbonyl]amino]phenoxy]-N-methyl-; Regorafenib impurity 03 
