Isonipecotic acid is a heterocyclic compound. Isonipecotic acid mainly characterized as a GABAA receptor partial agonist.

Trimethylamine oxide has a thermo-protective role in dogfish RBCs. It can stimulate both the anaerobic growth rate and the growth yield of Proteus NTHC 153 by serving as a terminal electron acceptor in an oxidative phosphorylation process.

Intermedin (human) is a polypeptide that can be found by peptide screening. Peptide screening is a research tool that pools active peptides primarily by immunoassay. Peptide screening can be used for protein interaction, functional analysis, epitope screening, especially in the field of agent research and development.