P 2870 (OTTO) Potassium thioacetate, 98% Cas 10387-40-3 - used for palladium mediated coupling with aryl halides and triflates leading to S-arylthioacetates and derivatives. P 2870 (OTTO) Potassium thioacetate, 98% Cas 10387-40-3 - used as a reagent in the conversion of halides to thiols.