Trifluoromethanesulfonic acid, also known as triflic acid, TFMS, TFSA, HOTf or TfOH, is a sulfonic acid with the chemical formula CF3SO3H.
T 2165 (OTTO) Trifluoromethanesulphonic acid, 99% Cas 1493-13-6 - used in research as a catalyst for esterification. It is a hygroscopic, colorless, slightly viscous liquid which is soluble in polar solvents.