S 5614 (OTTO) Silver trifluoroacetate, 98% Cas 2966-50-9 - used as a Lewis acid catalyst. S 5614 (OTTO) Silver trifluoroacetate, 98% Cas 2966-50-9 - used as an important raw material for the preparation of triethylsilyl trifloroacetate and triphenylmethyl trifluoroacetate.