Ethyl 3-hydroxy-4,4,4-trifluorobutanoate is a fluorinated organic compound characterized by a hydroxyl group and a trifluoromethyl group on a butanoate backbone. It serves as a crucial synthetic intermediate in the production of advanced materials, particularly in the field of organic electronics. Its primary industrial application is as a key precursor for the synthesis of 2-(4,4,4-Trifluoro-3-hydroxy-1,3-butanedionato) aluminum (Al(TFTA)₃), a highly efficient electron-transporting material (ETM) used in organic light-emitting diodes (OLEDs). The compound's structure provides the essential fluorinated β-diketonate ligand framework required for constructing this class of metal chelates, which are vital for improving device efficiency and stability. Due to the presence of both a reactive hydroxyl group and an electron-withdrawing trifluoromethyl group, it is also a valuable fluorinated building block in synthetic chemistry for introducing trifluoromethylated motifs into more complex molecules, extending its utility beyond material science into pharmaceutical and agrochemical research.