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4,4,5,5-tetramethyl-2-(2-(trifluoromethyl)phenyl)-1,3,2-dioxaborolane; CAS No.: 1073339-21-5; 2-Trifluoromethylphenyl boronic ester demonstrates our fluorinated coupling reagents for electron-deficient systems. The CF3 group enhances oxidative stability in cross-coupling conditions. As a chemical online mall provider, we ensure consistent quality of these air-sensitive boronates under inert packaging.