Calcitonin (rat) 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.

β-CGRP, human ,a 37-amino acid peptide,is the beta form of Calcitonin-gene-related peptide (β-CGRP), involved extensively in regulation of the cardiovascular and nervous systems. β-CGRP contains a disulphide bridge at the N-terminus, a C-terminal phenylalanine amide important for immune recognition, and an a-helix between residues 8 and 18.

Cls-Aconitic acid is the cis-isomer of Aconitic acid.is an intermediate in the tricarboxylic acid cycle produced by the dehydration of citric acid.