β-amyloid (15-21) is a fragment of Amyloid-β peptide, maybe used in the research of neurological disease. This fragment is involved in beta sheet formation.

Secretin, porcine TFA (Porcine secretin TFA) is a 27-amino acid peptide, acting on pancreatic acinar cells and ductal epithelial cells stimulating the production of bicarbonate rich fluid.Secretin porcine stimulates pancreatic and gastric secretions to aid in the diagnosis of pancreatic exocrine dysfunction and the diagnosis of gastrinoma.

4-Hydroxy-5-methyl-3-furanone is a natural product isolated from Eurycotis floridana.