Description General description 2,6-Diphenylisonicotinic acid can be synthesized by reacting ethyl 2,6-diphenylisonicotinate in ethanol with KOH solution.[2] Application 2,6-Diphenylisonicotinic acid may be used as one of the reactants in the synthesis of 7-substituted spiro[chroman-2,4′-piperidin]-4-one derivatives[1] and ethyl 2,6-diphenylisonicotinate (a tridentate ligand).[3] Packaging 1, 5 g in glass bottle