4-Phenethoxybenzoic acid is primarily utilized in the field of organic synthesis, where it serves as a valuable intermediate in the production of various pharmaceuticals. Its structure, featuring both a phenethyl and a benzoic acid moiety, makes it a versatile building block for the development of compounds with potential therapeutic properties. Additionally, it is employed in the synthesis of liquid crystal materials, which are essential components in display technologies such as LCD screens. Its role in these applications highlights its importance in advancing both medical and technological innovations.