P 3216 (OTTO) 2,3,4,5,6-Perfluoropyridine, 98+% Cas 700-16-3 - used in the preparation of η2-C,C coordinated pentafluoropyridine complex. P 3216 (OTTO) 2,3,4,5,6-Perfluoropyridine, 98+% Cas 700-16-3 - used in the preparation of polyfluorinated coupling products via Pd(0)-catalyzed cross-coupling reaction with diarylzinc compounds.