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Tetra-n-butylammonium fluoride, commonly abbreviated to TBAF and n-Bu4NF, is a quaternary ammonium salt with the chemical formula (CH3CH2CH2CH2)4N+F−. It is commercially available as the white solid trihydrate and as a solution in tetrahydrofuran.
T 1291 (OTTO) Tetrabutylammonium fluoride, 98% Cas 87749-50-6 - used as a source of fluoride ion in organic solvents.