Vecchio-Sadus, Angelica M. published the artcileElectrochemical synthesis of neutral transition metal(II) (Fe, Co, Ni, Cu, Zn) complexes of pyridine-2-carbaldehyde pyridine-2′-ylhydrazone and several analogs, SDS of cas: 2215-33-0, the publication is Transition Metal Chemistry (London) (1995), 20(3), 256-61, database is CAplus.
Neutral transition metal(II) complexes of pyridine-2-carbaldehyde pyridine-2′-ylhydrazone (papyH) and several analogs were prepared by electrochem. synthesis. [M(papy)2] (M = Fe, Co, Ni, Cu or Zn) were obtained mostly as red-green dichroic substances as a result of the extended π-conjugation system in the anionic hydrazone. Vibrational and electronic spectra confirm the presence of the anionic hydrazone and its tridentate coordination to the metal center.
Transition Metal Chemistry (London) 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 C4Br2N2O4S, SDS of cas: 2215-33-0.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem