Shabany, Hossein et al. published their research in Chemical Communications (Cambridge) in 2000 | CAS: 15336-72-8

4,4′-Bipiperidine (cas: 15336-72-8) belongs to piperidine derivatives. The piperidine ring can be found not only in more than half of the currently known structures of alkaloids, but also in many natural or synthetic compounds with interesting biological activities. Piperidine prefers a chair conformation, similar to cyclohexane. Unlike cyclohexane, piperidine has two distinguishable chair conformations: one with the N鈥揌 bond in an axial position, and the other in an equatorial position.Application of 15336-72-8

Evidence for multiple alkali metal cation complexation in membrane-spanning ion transporters was written by Shabany, Hossein;Murray, Clare L.;Gokel, George W.;Gloeckner, Charles A.;Grayson, Michael A.;Gross, Michael L.. And the article was included in Chemical Communications (Cambridge) in 2000.Application of 15336-72-8 This article mentions the following:

The polynitrogen-containing cation transporters 1-4 are shown by electrospray mass spectrometry to form multi-cationic species. In the absence of Na+, protonated species dominate but increasing the sodium concentration leads to all binding sites being occupied. In the experiment, the researchers used many compounds, for example, 4,4′-Bipiperidine (cas: 15336-72-8Application of 15336-72-8).

4,4′-Bipiperidine (cas: 15336-72-8) belongs to piperidine derivatives. The piperidine ring can be found not only in more than half of the currently known structures of alkaloids, but also in many natural or synthetic compounds with interesting biological activities. Piperidine prefers a chair conformation, similar to cyclohexane. Unlike cyclohexane, piperidine has two distinguishable chair conformations: one with the N鈥揌 bond in an axial position, and the other in an equatorial position.Application of 15336-72-8

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem