Sakai, Takeo et al. published their research in ACS Omega in 2017 | CAS: 628-13-7

Pyridinehydrochloride (cas: 628-13-7) belongs to pyridine derivatives. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. Pyridine, its benzo and pyridine-based compounds play diverse roles in organic chemistry. Pyridine-based materials are valued for their optical and physical properties as well as their medical potential. Electric Literature of C5H6ClN

Methanolysis of the Cyclic Acetal Function of NanoKid Catalyzed by NanoGoblin, the Pyridinium Salt of Tetracyanocyclopentadienide was written by Sakai, Takeo;Nagao, Yoshihiro;Nakamura, Yuki;Mori, Yuji. And the article was included in ACS Omega in 2017.Electric Literature of C5H6ClN This article mentions the following:

Tetracyanocyclopentadienide amine salts such as NanoGoblin I resembling dolls with 1,3-dioxane acetal “heads” and cyano “hands” and “feet” were prepared; in the presence of I, the arylalkynylbenzaldehyde acetal II (NanoKid) underwent transacetalization in methanol-d4 to yield the corresponding bis(trideuteromethyl) acetal. In the experiment, the researchers used many compounds, for example, Pyridinehydrochloride (cas: 628-13-7Electric Literature of C5H6ClN).

Pyridinehydrochloride (cas: 628-13-7) belongs to pyridine derivatives. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. Pyridine, its benzo and pyridine-based compounds play diverse roles in organic chemistry. Pyridine-based materials are valued for their optical and physical properties as well as their medical potential. Electric Literature of C5H6ClN

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem