4-(Trifluoromethoxy)phenyl acetic acid is a chemical compound with the molecular formula C9H7F3O3. It is a derivative of phenylacetic acid, featuring a trifluoromethoxy group (CF3O-) attached to the 4-position of the phenyl ring. 4-(TRIFLUOROMETHOXY)PHENYLACETIC ACID is known for its potential applications in the synthesis of various pharmaceuticals and agrochemicals, particularly as an intermediate in the production of certain drugs and pesticides. Its unique structure, with the electron-withdrawing trifluoromethoxy group, can influence the reactivity and properties of the molecule, making it a valuable building block in organic chemistry.