5-[4-Chloro-3-(trifluoromethyl)phenyl]-2-furancarboxylic Acid is an analog of 5-[4-Chloro-2-(trifluoromethyl)phenyl]-2-furancarboxylic Acid (C427880); a reagent in the synthesis of (aryl)-N-[(phenyl)-1,2,4-triazolo[3,4-b][1,3,4]thiadiazolyl]furancarboxamide derivatives as herbicides.