(3-Ethoxy-4-methoxyphenyl)boronic acid is widely used in organic synthesis, particularly in Suzuki-Miyaura cross-coupling reactions. This reaction is a key method for forming carbon-carbon bonds, making it valuable in the production of pharmaceuticals, agrochemicals, and advanced materials. The compound serves as a versatile boronic acid reagent, enabling the introduction of the (3-ethoxy-4-methoxyphenyl) group into complex molecules. Its stability and reactivity make it a preferred choice for creating biologically active compounds, such as drug intermediates or ligands for catalysis. Additionally, it is employed in the development of organic electronic materials, where precise molecular design is crucial for optimizing properties like conductivity or luminescence.