Asuero, Agustin G. published the artcileSpectrophotometric evaluation of acidity constants of two-step overlapping equilibria from the inflexion points of the absorbance versus pH graphs with application to the dipyridylglyoxal mono-(2-pyridyl)hydrazone system, Product Details of C11H10N4, the publication is Acta Pharmaceutica Technologica (1988), 34(3), 164-8, database is CAplus.
Some pyridylhydrazone type derivatives are being currently studied from a pharmacol. point of view. In this respect, the knowledge of acidity constants of a drug is of great worth in solving fundamental problems of pharmaceutical interest. Thus, an extension of the method of Irving, Rossotti and Harris (1955) for the evaluation of acidity constants of diprotic acids is presented. A simple method of developing the final equations given by those authors in a more usual anal. form is also presented, thus providing a rapid and convenient desk method of calculation The methods devised were applied to the evaluation of acidity constants of dipyridylglyoxal mono-(2-pyridyl)-hydrazone (DMPH). Results obtained agree well with those obtained by applying a three equation procedure.
Acta Pharmaceutica Technologica 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