Regorafenib (BAY 73-4506) Regorafenib (BAY 73-4506) Synonyms: BAY 73-4506; 4-[4-({[4-Chloro-3-(trifluoromethyl)phenyl]carbamoyl}amino)-3-fluorophenoxy]-N-methylpyridine-2-carboxamide; BAY 73-4506(Regorafenib); 4-[4-({[4-chioro-3-(trifluoroMethyl)phenyl]carbaMoyl}aMino)-3-fluorophenoxy]-pyridine-2-carboxylic acid MethylaMide; Regorafenib (BAY 73-4506); 4-[4-[[[[4-Chloro-3-(trifluoroMethyl)phenyl]aMino]carbonyl]aMino]-3-fluorophenoxy]-N-Methyl-2-pyridinecarboxaMide; 4-[4-[N'-(4-Chloro-3-trifluoroMethylphenyl)ureido]-3- fluorophenoxy]pyridine-2-carboxylic Acid MethylaMide CAS NO.: 755037-03-7 Formula: C21H15ClF4N4O3 Weight: 482.815