T 2212 (OTTO) Trifluoroacetic anhydride, (GC) 99% - Cas 407-25-0 - used for the introduction of trifluoroacetyl group in organic synthesis. It is involved in the preparation of N- and O-trifluoroacetyl derivatives of a wide range of biologically active compounds for gas chromatography analysis. It plays an important role as desiccant for trifluoroacetic acid.