Grases, F. published the artcile2,2′-Dipyridyl ketone hydrazone as photometric reagent. Critical study of colorimetric and fluorimetric reaction ability of hydrazones, azines and phenylhydrazones of various ketones, Product Details of C11H10N4, the publication is Afinidad (1982), 39(377), 30-2, database is CAplus.
2,2′-Dipyridyl ketone hydrazone in EtOH reacts with Pd(II) to form a complex with absorption peak at 500 nm. The development of the color takes 30 min and is then stable for at least 2 h. Optimum conditions are pH 13.4 and 80% EtOH solvent. Beer’s law is followed for 0.5-4.0 ppm Pd. Tolerance levels for 21 ions are given. The colorimetric and fluorometric reactions of hydrazones, azine, and phenylhydrazones of various ketones are briefly reviewed.
Afinidad published new progress about 2215-33-0. 2215-33-0 belongs to pyridine-derivatives, auxiliary class Pyridine,Amine, name is 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, and the molecular formula is C11H10N4, Product Details of C11H10N4.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem