Bell, Colin Frank published the artcileNephelometric determination of silver and mercury with bis(I,3-di-(2′-pyridyl)-I,2-diaza-2-propenato) cobalt(III) perchlorate, Safety of 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, the publication is Analytica Chimica Acta (1970), 52(2), 313-21, database is CAplus.
Procedures are described for the nephelometric determination of Ag and Hg, based on adduct-formation with the Co(III) complex of 1,3-di(2-pyridyl)-1,2-diaza-2-propene (PAPHY). The procedures are rapid, sensitive, and reproducible and compare favorably with other nephelometric methods for these metals. The nature of the adducts is discussed.
Analytica Chimica Acta 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, Safety of 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem